Severe Storms

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Tue Apr 02 2024 Valid 021630Z - 031200Z ...THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON/EVENING FOR CENTRAL/EASTERN KY...SOUTHEAST IN...SOUTHERN OH...AND FAR WESTERN WV... ...SUMMARY... A severe weather outbreak is possible through this evening over the Ohio Valley with the broader severe weather risk including parts of the Southeast. Strong and potentially long-track tornadoes are possible from Indiana and Ohio southward into the Mid South. A threat for strong tornadoes may focus this evening into tonight across parts of Alabama and Georgia. ...OH/TN Valley area through this evening... Complex scenario late this morning with ongoing convection across WV, trailing outflow to the west across KY, and another cluster of storms moving into the trailing outflow zone across TN/KY. The lead storms have produced damaging winds (up to 92 mph measured), though this line of storms should weaken near or just after midday as it encounters the remnant cool air wedge close to the WV/VA border. The storms farther west will move along the remnant outflow zone, where surface temperatures are in the low-mid 70s with dewpoints of 65-70 F. A couple of the storms will likely become persistent supercells capable of producing tornadoes (some of which could be strong/EF2-3) given the already strong wind profiles/long hodographs with effective SRH of 200-300 m2/s2. Uncertainty is relatively high for areas north of the ongoing TN-KY-WV convection. The storms approaching middle TN and southern KY will tend to reinforce the earlier outflow, which will likely interfere with/limit destabilization this afternoon toward parts of OH (especially eastern OH). The corridor of richer low-level moisture from northeast AR into southeast MO (immediately west of the TN storms) suggests that air mass recovery will occur toward southern IL and southern/central IN by late morning into early afternoon, and southwest OH this afternoon. Strong deep-layer shear/long hodographs associated with an amplifying midlevel trough/jet and a deepening surface cyclone will support the potential for fast-moving supercells capable of all severe hazards, including strong tornadoes where sufficient low-level warming/moistening occurs in the wake of the morning convection. As previously mentioned, the northeastern extent of the primary severe threat into OH is more uncertain given the ongoing convection to the south, but will trim the northeast edge of the MDT risk area and expand south some to account for the outflow corridor enhancing the tornado threat on the mesoscale across KY. ...Eastern AL/western GA overnight... In response to the amplifying midlevel trough/deepening cyclone over the MS/OH Valleys, deep-layer flow and low-level moisture advection will increase tonight across AL/GA. A surge of upper 60s boundary-layer dewpoints and strengthening low-level shear both appear supportive of supercells/tornadoes overnight in a broken band ahead of the synoptic cold front. An isolated strong tornado or two will be possible. ..Thompson/Wendt.. 04/02/2024 Read more

WW 0074 Status Updates
STATUS REPORT ON WW 74 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 E JKL TO 35 SE HTS TO 15 SSW CRW TO 5 NNW CRW TO 20 SSW PKB. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0344 ..GLEASON..04/02/24 ATTN...WFO...RLX... STATUS REPORT FOR WT 74 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS WVC005-007-013-015-019-021-035-039-041-045-059-067-075-081-083- 087-097-101-109-021640- WV . WEST VIRGINIA COUNTIES INCLUDED ARE BOONE BRAXTON CALHOUN CLAY FAYETTE GILMER JACKSON KANAWHA LEWIS LOGAN MINGO NICHOLAS POCAHONTAS RALEIGH RANDOLPH ROANE UPSHUR WEBSTER WYOMING THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0075 Status Updates
STATUS REPORT ON WW 75 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..GLEASON..04/02/24 ATTN...WFO...LMK...PAH...OHX...MEG... STATUS REPORT FOR WT 75 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC001-003-009-035-045-047-053-057-087-099-137-141-169-171-207- 213-217-219-221-227-021640- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR ALLEN BARREN CALLOWAY CASEY CHRISTIAN CLINTON CUMBERLAND GREEN HART LINCOLN LOGAN METCALFE MONROE RUSSELL SIMPSON TAYLOR TODD TRIGG WARREN TNC003-005-015-017-021-023-027-031-035-037-039-041-043-049-055- 061-071-077-079-081-083-085-087-099-101-109-111-117-119-125-133- 135-137-141-147-149-159-161-165-169-175-177-181-183-185-187-189- 021640- TN . TENNESSEE COUNTIES INCLUDED ARE BEDFORD BENTON CANNON CARROLL CHEATHAM CHESTER CLAY COFFEE CUMBERLAND Read more

MD 0343 CONCERNING TORNADO WATCH 73... FOR PORTIONS OF EASTERN KY...EXTREME SOUTHERN OH...EXTREME SOUTHWESTERN VA...AND WV
Mesoscale Discussion 0343 NWS Storm Prediction Center Norman OK 0900 AM CDT Tue Apr 02 2024 Areas affected...Portions of eastern KY...extreme southern OH...extreme southwestern VA...and WV Concerning...Tornado Watch 73... Valid 021400Z - 021500Z The severe weather threat for Tornado Watch 73 continues. SUMMARY...A damaging wind and isolated tornado threat may continue into parts of West Virginia this morning. Downstream watch issuance will be needed. DISCUSSION...A small, but well organized line of thunderstorms is ongoing this morning across parts of eastern KY and far southern OH. While instability remains weak per recent mesoanalysis estimates and various RAP forecast soundings (around 250-500 J/kg MLCAPE), strong deep-layer shear of 50-60 kt will likely support continued convective organization as this line moves eastward into parts of WV and vicinity this morning. Damaging winds should remain the primary threat given the linear nature of the ongoing convection, but enough low-level shear is also present to support some risk for isolated tornadoes. A downstream watch will be issued shortly. ..Gleason/Thompson.. 04/02/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...RLX...JKL...ILN...LMK... LAT...LON 37908400 38668314 38678209 38168108 37498163 37338231 37548361 37908400 Read more

MD 0342 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR PORTIONS OF WESTERN/MIDDLE TN AND WESTERN KY
Mesoscale Discussion 0342 NWS Storm Prediction Center Norman OK 0832 AM CDT Tue Apr 02 2024 Areas affected...Portions of western/middle TN and western KY Concerning...Severe potential...Watch possible Valid 021332Z - 021500Z Probability of Watch Issuance...60 percent SUMMARY...Some severe threat will probably persist this morning as thunderstorms spread northeastward. Watch issuance is possible. DISCUSSION...A loosely organized cluster of convection is ongoing this morning over southwestern TN and vicinity. While the boundary layer is only modestly unstable per 12Z BNA sounding and recent RAP forecast soundings over western TN, strong deep-layer shear associated with a pronounced mid/upper-level jet is present over the lower MS Valley into the TN Valley. Given the somewhat linear nature of the ongoing cluster, strong to damaging winds should be the main threat in the near term. But, the presence of a strong southwesterly low-level jet and effective SRH around 250-300 m2/s2 suggests that tornadoes will also be a concern with either line-embedded circulations, or with any supercells that can develop and persist. Trends will be closely monitored for possible watch issuance, pending signs of greater convective organization/intensity. ..Gleason/Thompson.. 04/02/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OHX...PAH...MEG... LAT...LON 35388990 36298962 36878896 37048824 36948750 36668712 36158701 35558712 35128795 35028873 35388990 Read more

WW 0075 Status Updates
STATUS REPORT ON WW 54 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 WNW DRT TO 45 SSE SAT TO 30 N PSX TO 30 W BPT. ..BROYLES..03/15/24 ATTN...WFO...EWX...HGX...CRP...LCH... STATUS REPORT FOR WS 54 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS TXC013-025-039-071-127-163-167-175-239-245-255-283-297-311-321- 323-361-469-479-507-160140- TX . TEXAS COUNTIES INCLUDED ARE ATASCOSA BEE BRAZORIA CHAMBERS DIMMIT FRIO GALVESTON GOLIAD JACKSON JEFFERSON KARNES LA SALLE LIVE OAK MCMULLEN MATAGORDA MAVERICK ORANGE VICTORIA WEBB ZAVALA GMZ335-160140- CW . ADJACENT COASTAL WATERS INCLUDED ARE GALVESTON BAY THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL Read more