Severe Storms

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1259 AM CDT Tue May 28 2024 Valid 281200Z - 291200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR NORTHWEST INTO NORTH/CENTRAL TEXAS... ...SUMMARY... Widespread strong to severe storms are expected over much of Texas later today, with potential for significant damaging wind and areas of very large hail. ...Southern Plains... Rich low-level moisture and strong to extreme instability (MLCAPE of 3000-5000 J/kg) will be in place at the start of the forecast period across much of Texas, to the south of a surface front draped from northwest into east TX, and to the east of a dryline across southwest TX. Strong elevated buoyancy will extend north of the boundary into parts of OK. Elevated convection will likely be ongoing this morning, mainly near/north of the front. Large hail and locally gusty winds will be possible with these elevated storms. Evolution of the morning convection will be crucial in determining the magnitude and location of the greatest severe threat later in the day. It is possible that morning storms will grow upscale and move southeastward along the instability gradient, which would push the outflow-reinforced front southward through the day. Any upscale growth during the morning could result in an MCS posing a risk of severe wind gusts potentially into parts of northeast TX and northwest LA. If outflow does not become too expansive during the morning, then intense storm development will be possible this afternoon in the vicinity of the dryline across west TX. While midlevel flow will not be very strong, substantial veering with height will support sufficient effective shear for supercell development. Very large hail (greater than 2 inches in diameter) and localized severe gusts could accompany any supercell. Some tornado threat could also evolve, especially near the dryline/front intersection, as well as with any supercell that survives into the richer low-level moisture east of the dryline. A southeastward-moving MCS could evolve out of initial supercell development, which would pose a threat of very damaging wind gusts (potentially in excess of 80 mph) if the initially very favorable thermodynamic environment is not disrupted by early-day outflow. If convective outflow surges across much of TX relatively early in the day, then potential for a longer-lived and organized MCS will be reduced. However, even in this scenario, a few intense cells/clusters capable of very large hail and significant severe gusts will still be possible. At this time, the area of greatest confidence in higher-end severe potential lies roughly from the TX Big Country region into parts of central/north TX. The southeastward and westward extent of the greater threat will be determined in part by the evolution of the outflow-reinforced front through the day. ...Eastern OR into northern ID into western MT... A strong mid/upper-level shortwave trough will move eastward across the Pacific Northwest later today into tonight. While moisture will be limited ahead of this system, steep low/midlevel lapse rates will support modest destabilization, and scattered thunderstorm development will be possible this afternoon into the evening. Stronger flow aloft will be displaced westward of storm development, but deep-layer shear may still be sufficient to support a few stronger cells/clusters capable of isolated severe gusts and perhaps some hail. ...Southern WI into Northern IL/IN... A few strong storms will be possible this afternoon into the early evening from southern WI into parts of northern IL/IN. While low-level moisture and deep-layer shear will generally be modest, cold temperatures aloft will support MLCAPE rising into the 500-1000 J/kg range. A couple stronger multicells could become capable of producing hail. Strong wind gusts could also accompany the strongest storms, especially where greater pre-storm heating can occur through the day. ..Dean/Moore.. 05/28/2024 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1259 AM CDT Tue May 28 2024 Valid 281200Z - 291200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR NORTHWEST INTO NORTH/CENTRAL TEXAS... ...SUMMARY... Widespread strong to severe storms are expected over much of Texas later today, with potential for significant damaging wind and areas of very large hail. ...Southern Plains... Rich low-level moisture and strong to extreme instability (MLCAPE of 3000-5000 J/kg) will be in place at the start of the forecast period across much of Texas, to the south of a surface front draped from northwest into east TX, and to the east of a dryline across southwest TX. Strong elevated buoyancy will extend north of the boundary into parts of OK. Elevated convection will likely be ongoing this morning, mainly near/north of the front. Large hail and locally gusty winds will be possible with these elevated storms. Evolution of the morning convection will be crucial in determining the magnitude and location of the greatest severe threat later in the day. It is possible that morning storms will grow upscale and move southeastward along the instability gradient, which would push the outflow-reinforced front southward through the day. Any upscale growth during the morning could result in an MCS posing a risk of severe wind gusts potentially into parts of northeast TX and northwest LA. If outflow does not become too expansive during the morning, then intense storm development will be possible this afternoon in the vicinity of the dryline across west TX. While midlevel flow will not be very strong, substantial veering with height will support sufficient effective shear for supercell development. Very large hail (greater than 2 inches in diameter) and localized severe gusts could accompany any supercell. Some tornado threat could also evolve, especially near the dryline/front intersection, as well as with any supercell that survives into the richer low-level moisture east of the dryline. A southeastward-moving MCS could evolve out of initial supercell development, which would pose a threat of very damaging wind gusts (potentially in excess of 80 mph) if the initially very favorable thermodynamic environment is not disrupted by early-day outflow. If convective outflow surges across much of TX relatively early in the day, then potential for a longer-lived and organized MCS will be reduced. However, even in this scenario, a few intense cells/clusters capable of very large hail and significant severe gusts will still be possible. At this time, the area of greatest confidence in higher-end severe potential lies roughly from the TX Big Country region into parts of central/north TX. The southeastward and westward extent of the greater threat will be determined in part by the evolution of the outflow-reinforced front through the day. ...Eastern OR into northern ID into western MT... A strong mid/upper-level shortwave trough will move eastward across the Pacific Northwest later today into tonight. While moisture will be limited ahead of this system, steep low/midlevel lapse rates will support modest destabilization, and scattered thunderstorm development will be possible this afternoon into the evening. Stronger flow aloft will be displaced westward of storm development, but deep-layer shear may still be sufficient to support a few stronger cells/clusters capable of isolated severe gusts and perhaps some hail. ...Southern WI into Northern IL/IN... A few strong storms will be possible this afternoon into the early evening from southern WI into parts of northern IL/IN. While low-level moisture and deep-layer shear will generally be modest, cold temperatures aloft will support MLCAPE rising into the 500-1000 J/kg range. A couple stronger multicells could become capable of producing hail. Strong wind gusts could also accompany the strongest storms, especially where greater pre-storm heating can occur through the day. ..Dean/Moore.. 05/28/2024 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1259 AM CDT Tue May 28 2024 Valid 281200Z - 291200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR NORTHWEST INTO NORTH/CENTRAL TEXAS... ...SUMMARY... Widespread strong to severe storms are expected over much of Texas later today, with potential for significant damaging wind and areas of very large hail. ...Southern Plains... Rich low-level moisture and strong to extreme instability (MLCAPE of 3000-5000 J/kg) will be in place at the start of the forecast period across much of Texas, to the south of a surface front draped from northwest into east TX, and to the east of a dryline across southwest TX. Strong elevated buoyancy will extend north of the boundary into parts of OK. Elevated convection will likely be ongoing this morning, mainly near/north of the front. Large hail and locally gusty winds will be possible with these elevated storms. Evolution of the morning convection will be crucial in determining the magnitude and location of the greatest severe threat later in the day. It is possible that morning storms will grow upscale and move southeastward along the instability gradient, which would push the outflow-reinforced front southward through the day. Any upscale growth during the morning could result in an MCS posing a risk of severe wind gusts potentially into parts of northeast TX and northwest LA. If outflow does not become too expansive during the morning, then intense storm development will be possible this afternoon in the vicinity of the dryline across west TX. While midlevel flow will not be very strong, substantial veering with height will support sufficient effective shear for supercell development. Very large hail (greater than 2 inches in diameter) and localized severe gusts could accompany any supercell. Some tornado threat could also evolve, especially near the dryline/front intersection, as well as with any supercell that survives into the richer low-level moisture east of the dryline. A southeastward-moving MCS could evolve out of initial supercell development, which would pose a threat of very damaging wind gusts (potentially in excess of 80 mph) if the initially very favorable thermodynamic environment is not disrupted by early-day outflow. If convective outflow surges across much of TX relatively early in the day, then potential for a longer-lived and organized MCS will be reduced. However, even in this scenario, a few intense cells/clusters capable of very large hail and significant severe gusts will still be possible. At this time, the area of greatest confidence in higher-end severe potential lies roughly from the TX Big Country region into parts of central/north TX. The southeastward and westward extent of the greater threat will be determined in part by the evolution of the outflow-reinforced front through the day. ...Eastern OR into northern ID into western MT... A strong mid/upper-level shortwave trough will move eastward across the Pacific Northwest later today into tonight. While moisture will be limited ahead of this system, steep low/midlevel lapse rates will support modest destabilization, and scattered thunderstorm development will be possible this afternoon into the evening. Stronger flow aloft will be displaced westward of storm development, but deep-layer shear may still be sufficient to support a few stronger cells/clusters capable of isolated severe gusts and perhaps some hail. ...Southern WI into Northern IL/IN... A few strong storms will be possible this afternoon into the early evening from southern WI into parts of northern IL/IN. While low-level moisture and deep-layer shear will generally be modest, cold temperatures aloft will support MLCAPE rising into the 500-1000 J/kg range. A couple stronger multicells could become capable of producing hail. Strong wind gusts could also accompany the strongest storms, especially where greater pre-storm heating can occur through the day. ..Dean/Moore.. 05/28/2024 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1259 AM CDT Tue May 28 2024 Valid 281200Z - 291200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR NORTHWEST INTO NORTH/CENTRAL TEXAS... ...SUMMARY... Widespread strong to severe storms are expected over much of Texas later today, with potential for significant damaging wind and areas of very large hail. ...Southern Plains... Rich low-level moisture and strong to extreme instability (MLCAPE of 3000-5000 J/kg) will be in place at the start of the forecast period across much of Texas, to the south of a surface front draped from northwest into east TX, and to the east of a dryline across southwest TX. Strong elevated buoyancy will extend north of the boundary into parts of OK. Elevated convection will likely be ongoing this morning, mainly near/north of the front. Large hail and locally gusty winds will be possible with these elevated storms. Evolution of the morning convection will be crucial in determining the magnitude and location of the greatest severe threat later in the day. It is possible that morning storms will grow upscale and move southeastward along the instability gradient, which would push the outflow-reinforced front southward through the day. Any upscale growth during the morning could result in an MCS posing a risk of severe wind gusts potentially into parts of northeast TX and northwest LA. If outflow does not become too expansive during the morning, then intense storm development will be possible this afternoon in the vicinity of the dryline across west TX. While midlevel flow will not be very strong, substantial veering with height will support sufficient effective shear for supercell development. Very large hail (greater than 2 inches in diameter) and localized severe gusts could accompany any supercell. Some tornado threat could also evolve, especially near the dryline/front intersection, as well as with any supercell that survives into the richer low-level moisture east of the dryline. A southeastward-moving MCS could evolve out of initial supercell development, which would pose a threat of very damaging wind gusts (potentially in excess of 80 mph) if the initially very favorable thermodynamic environment is not disrupted by early-day outflow. If convective outflow surges across much of TX relatively early in the day, then potential for a longer-lived and organized MCS will be reduced. However, even in this scenario, a few intense cells/clusters capable of very large hail and significant severe gusts will still be possible. At this time, the area of greatest confidence in higher-end severe potential lies roughly from the TX Big Country region into parts of central/north TX. The southeastward and westward extent of the greater threat will be determined in part by the evolution of the outflow-reinforced front through the day. ...Eastern OR into northern ID into western MT... A strong mid/upper-level shortwave trough will move eastward across the Pacific Northwest later today into tonight. While moisture will be limited ahead of this system, steep low/midlevel lapse rates will support modest destabilization, and scattered thunderstorm development will be possible this afternoon into the evening. Stronger flow aloft will be displaced westward of storm development, but deep-layer shear may still be sufficient to support a few stronger cells/clusters capable of isolated severe gusts and perhaps some hail. ...Southern WI into Northern IL/IN... A few strong storms will be possible this afternoon into the early evening from southern WI into parts of northern IL/IN. While low-level moisture and deep-layer shear will generally be modest, cold temperatures aloft will support MLCAPE rising into the 500-1000 J/kg range. A couple stronger multicells could become capable of producing hail. Strong wind gusts could also accompany the strongest storms, especially where greater pre-storm heating can occur through the day. ..Dean/Moore.. 05/28/2024 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1259 AM CDT Tue May 28 2024 Valid 281200Z - 291200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR NORTHWEST INTO NORTH/CENTRAL TEXAS... ...SUMMARY... Widespread strong to severe storms are expected over much of Texas later today, with potential for significant damaging wind and areas of very large hail. ...Southern Plains... Rich low-level moisture and strong to extreme instability (MLCAPE of 3000-5000 J/kg) will be in place at the start of the forecast period across much of Texas, to the south of a surface front draped from northwest into east TX, and to the east of a dryline across southwest TX. Strong elevated buoyancy will extend north of the boundary into parts of OK. Elevated convection will likely be ongoing this morning, mainly near/north of the front. Large hail and locally gusty winds will be possible with these elevated storms. Evolution of the morning convection will be crucial in determining the magnitude and location of the greatest severe threat later in the day. It is possible that morning storms will grow upscale and move southeastward along the instability gradient, which would push the outflow-reinforced front southward through the day. Any upscale growth during the morning could result in an MCS posing a risk of severe wind gusts potentially into parts of northeast TX and northwest LA. If outflow does not become too expansive during the morning, then intense storm development will be possible this afternoon in the vicinity of the dryline across west TX. While midlevel flow will not be very strong, substantial veering with height will support sufficient effective shear for supercell development. Very large hail (greater than 2 inches in diameter) and localized severe gusts could accompany any supercell. Some tornado threat could also evolve, especially near the dryline/front intersection, as well as with any supercell that survives into the richer low-level moisture east of the dryline. A southeastward-moving MCS could evolve out of initial supercell development, which would pose a threat of very damaging wind gusts (potentially in excess of 80 mph) if the initially very favorable thermodynamic environment is not disrupted by early-day outflow. If convective outflow surges across much of TX relatively early in the day, then potential for a longer-lived and organized MCS will be reduced. However, even in this scenario, a few intense cells/clusters capable of very large hail and significant severe gusts will still be possible. At this time, the area of greatest confidence in higher-end severe potential lies roughly from the TX Big Country region into parts of central/north TX. The southeastward and westward extent of the greater threat will be determined in part by the evolution of the outflow-reinforced front through the day. ...Eastern OR into northern ID into western MT... A strong mid/upper-level shortwave trough will move eastward across the Pacific Northwest later today into tonight. While moisture will be limited ahead of this system, steep low/midlevel lapse rates will support modest destabilization, and scattered thunderstorm development will be possible this afternoon into the evening. Stronger flow aloft will be displaced westward of storm development, but deep-layer shear may still be sufficient to support a few stronger cells/clusters capable of isolated severe gusts and perhaps some hail. ...Southern WI into Northern IL/IN... A few strong storms will be possible this afternoon into the early evening from southern WI into parts of northern IL/IN. While low-level moisture and deep-layer shear will generally be modest, cold temperatures aloft will support MLCAPE rising into the 500-1000 J/kg range. A couple stronger multicells could become capable of producing hail. Strong wind gusts could also accompany the strongest storms, especially where greater pre-storm heating can occur through the day. ..Dean/Moore.. 05/28/2024 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1259 AM CDT Tue May 28 2024 Valid 281200Z - 291200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FOR NORTHWEST INTO NORTH/CENTRAL TEXAS... ...SUMMARY... Widespread strong to severe storms are expected over much of Texas later today, with potential for significant damaging wind and areas of very large hail. ...Southern Plains... Rich low-level moisture and strong to extreme instability (MLCAPE of 3000-5000 J/kg) will be in place at the start of the forecast period across much of Texas, to the south of a surface front draped from northwest into east TX, and to the east of a dryline across southwest TX. Strong elevated buoyancy will extend north of the boundary into parts of OK. Elevated convection will likely be ongoing this morning, mainly near/north of the front. Large hail and locally gusty winds will be possible with these elevated storms. Evolution of the morning convection will be crucial in determining the magnitude and location of the greatest severe threat later in the day. It is possible that morning storms will grow upscale and move southeastward along the instability gradient, which would push the outflow-reinforced front southward through the day. Any upscale growth during the morning could result in an MCS posing a risk of severe wind gusts potentially into parts of northeast TX and northwest LA. If outflow does not become too expansive during the morning, then intense storm development will be possible this afternoon in the vicinity of the dryline across west TX. While midlevel flow will not be very strong, substantial veering with height will support sufficient effective shear for supercell development. Very large hail (greater than 2 inches in diameter) and localized severe gusts could accompany any supercell. Some tornado threat could also evolve, especially near the dryline/front intersection, as well as with any supercell that survives into the richer low-level moisture east of the dryline. A southeastward-moving MCS could evolve out of initial supercell development, which would pose a threat of very damaging wind gusts (potentially in excess of 80 mph) if the initially very favorable thermodynamic environment is not disrupted by early-day outflow. If convective outflow surges across much of TX relatively early in the day, then potential for a longer-lived and organized MCS will be reduced. However, even in this scenario, a few intense cells/clusters capable of very large hail and significant severe gusts will still be possible. At this time, the area of greatest confidence in higher-end severe potential lies roughly from the TX Big Country region into parts of central/north TX. The southeastward and westward extent of the greater threat will be determined in part by the evolution of the outflow-reinforced front through the day. ...Eastern OR into northern ID into western MT... A strong mid/upper-level shortwave trough will move eastward across the Pacific Northwest later today into tonight. While moisture will be limited ahead of this system, steep low/midlevel lapse rates will support modest destabilization, and scattered thunderstorm development will be possible this afternoon into the evening. Stronger flow aloft will be displaced westward of storm development, but deep-layer shear may still be sufficient to support a few stronger cells/clusters capable of isolated severe gusts and perhaps some hail. ...Southern WI into Northern IL/IN... A few strong storms will be possible this afternoon into the early evening from southern WI into parts of northern IL/IN. While low-level moisture and deep-layer shear will generally be modest, cold temperatures aloft will support MLCAPE rising into the 500-1000 J/kg range. A couple stronger multicells could become capable of producing hail. Strong wind gusts could also accompany the strongest storms, especially where greater pre-storm heating can occur through the day. ..Dean/Moore.. 05/28/2024 Read more

WW 0339 Status Updates
STATUS FOR WATCH 0339 HAS NOT BEEN ISSUED YET Read more

No watches are valid as of Tue May 28 05:02:02 UTC 2024.

MD 1029 CONCERNING SEVERE THUNDERSTORM WATCH 338... FOR MIDDLE/LOWER RIO GRANDE VALLEY...SOUTH CENTRAL TEXAS
Mesoscale Discussion 1029 NWS Storm Prediction Center Norman OK 1100 PM CDT Mon May 27 2024 Areas affected...Middle/Lower Rio Grande Valley...South Central Texas Concerning...Severe Thunderstorm Watch 338... Valid 280400Z - 280500Z The severe weather threat for Severe Thunderstorm Watch 338 continues. SUMMARY...The threat for large hail and damaging gusts continues across the Middle Rio Grande Valley/south central Texas. DISCUSSION...Outflow-dominant thunderstorm that moved across deep south Texas has left rain-cooled air in its wake, with temperatures now generally in the 70s. This cooling and resultant convective inhibition will likely preclude the development of surface-based thunderstorm for the rest of the evening. However, ample mid-level moisture and steep mid-level lapse rates remain in place over the region, supportive of at least some potential for elevated thunderstorms. Isolated hail could occur with the strongest of these elevated storms. Farther north into Webb and Zapata Counties, an interesting convective evolution is underway with the storm just across the border surging eastward along the outflow from the storms farther south. Strong buoyancy and shear remains in place, and large hail and strong gusts will be possible with this storm for at least the next hour. Some in-situ development has also occurred near LRD amid strong low-level moisture convergence. Large hail and strong gusts are possible with this storm as well. ..Mosier.. 05/28/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CRP...BRO... LAT...LON 27639982 27929959 27739864 26839776 25959791 26249906 27049953 27639982 Read more

MD 1028 CONCERNING SEVERE THUNDERSTORM WATCH 336... FOR NORTH TEXAS
Mesoscale Discussion 1028 NWS Storm Prediction Center Norman OK 0928 PM CDT Mon May 27 2024 Areas affected...North Texas Concerning...Severe Thunderstorm Watch 336... Valid 280228Z - 280400Z The severe weather threat for Severe Thunderstorm Watch 336 continues. SUMMARY...Large hail and damaging gusts remain possible with the thunderstorms ongoing over north Texas. Convective trends will be monitored to determine if a local extension in time of the ongoing watch is needed. DISCUSSION...Another round of thunderstorms has developed amid the low-level moisture convergence across Jack, Wise, and Denton Counties in North Texas. This development is occurring to the north of the outflow-dried air that extends from Tarrant and Dallas Counties southeastward into Erath County. The presence of this drier air just downstream of the storms and onset of nocturnal cooling suggest that the longevity of this activity may be limited. However, vertical shear remains strong, and there is some potential for the most organized storms to persist longer than the thermodynamic environment would suggest. Hail remains the primary threat, although a strong gust or two is possible as well. Severe Thunderstorm Watch 336 is currently set to expire at 03Z, but convective trends will be monitored to determine if a local extension in time is necessary. ..Mosier.. 05/28/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FWD... LAT...LON 32609880 33329847 33359654 32689638 32189774 32609880 Read more

MD 1027 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR MIDDLE/LOWER RIO GRANDE VALLEY
Mesoscale Discussion 1027 NWS Storm Prediction Center Norman OK 0746 PM CDT Mon May 27 2024 Areas affected...Middle/Lower Rio Grande Valley Concerning...Severe potential...Watch possible Valid 280046Z - 280245Z Probability of Watch Issuance...60 percent SUMMARY...Large to very large hail (2" to 2.5" in diameter) and strong gusts up to 70 mph are possible across the Middle/Lower Rio Grande Valley this evening. The need for a watch is uncertain, but convective trends will be monitored closely. DISCUSSION...Visible satellite and regional radar imagery shows an intense left-moving supercell moving across northern Tamaulipas towards the Lower Rio Grande Valley. Recent motion of this storm was estimated at 30 kt, bringing it across the border around 0130Z. Extreme buoyancy (i.e. MLCAPE around 5000 J/kg) is in place downstream, with at least some potential for this storm to maintain its intensity for the next few hours. Main deterrent is the building convective inhibition and warm temperatures aloft, which, given the intensity of the storm, are not expected to result in quick storm weakening. Large to very large hail (2" to 2.5" in diameter) and strong gusts up to 70 mph may impact the Lower Rio Grande Valley within the next hour. Farther north (about 30 miles south of LRD), convergence along an outflow boundary has resulted in convective initiation, with much of the activity west of the border. However, one cell has developed in far western Webb County. Large to very large hail and strong gusts are possible with this storm, as well as any other development that occurs in this area. Given the widely spaced and isolated nature of the severe threat, the need for watch is uncertain. However, convective trends will be monitored closely. ..Mosier/Smith.. 05/28/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CRP...BRO... LAT...LON 27089942 27549952 28020006 28049926 26869822 26169825 26489909 27089942 Read more

MD 1025 CONCERNING SEVERE THUNDERSTORM WATCH 333...335... FOR SOUTHEAST PENNSYLVANIA INTO THE DELMARVA REGION
Mesoscale Discussion 1025 NWS Storm Prediction Center Norman OK 0640 PM CDT Mon May 27 2024 Areas affected...Southeast Pennsylvania into the Delmarva region Concerning...Severe Thunderstorm Watch 333...335... Valid 272340Z - 280145Z The severe weather threat for Severe Thunderstorm Watch 333, 335 continues. SUMMARY...The severe threat continues primarily for the southern half of WW 333, especially downstream of a cluster of organized convection moving across the Delmarva region. DISCUSSION...Gradual and modest air mass recovery has been ongoing over the past couple of hours across central to eastern PA and NJ in the wake of earlier convection. Recent RAP mesoanalysis estimates suggest MLCAPE has increased to around 1000 J/kg across eastern PA/NJ with strong deep-layer wind shear remaining over the region ahead of the approaching upper wave. Thunderstorms that have recently developed along a subtle surface confluence axis may see intensification to severe limits over the next hour or so before the onset of more substantial nocturnal cooling/stabilization. Further south, a cluster of discrete/semi-discrete cells has evolved over the Delmarva region. This activity remains well within the buoyancy axis where low 70s dewpoints are supporting MLCAPE closer to 1500 J/kg. With moisture continuing to increase downstream into DE, storm maintenance and/or intensification is expected with a continued threat for damaging winds and large hail. A brief tornado threat may materialize across the northern Chesapeake Bay area within the hour given modest (around 100 m2/s2) 0-1 km SRH just ahead of the ongoing storms, but southwesterly winds further downstream into DE suggest weaker low-level SRH and lower tornado potential. ..Moore.. 05/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OKX...PHI...BGM...AKQ...CTP...LWX... LAT...LON 38567485 38477515 38437571 38437618 38537677 38667723 38857738 38987743 39217725 39547699 39717682 39987665 40367679 40617699 41087677 41437562 41127402 40647383 39967395 39427423 38977453 38837474 38567485 Read more

WW 0335 Status Updates
STATUS REPORT ON WW 335 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE SBY TO 10 WSW NHK TO 15 ENE DCA TO 15 E BWI TO 15 WSW ACY. ..MOORE..05/28/24 ATTN...WFO...LWX...AKQ...MHX...RAH... STATUS REPORT FOR WT 335 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MDC003-009-280240- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL CALVERT ANZ532-533-539-540-541-542-280240- CW . ADJACENT COASTAL WATERS INCLUDED ARE CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD CHESTER RIVER TO QUEENSTOWN MD EASTERN BAY CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER PATUXENT RIVER TO BROOMES ISLAND MD Read more

WW 0335 Status Updates
STATUS REPORT ON WW 335 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE SBY TO 10 WSW NHK TO 15 ENE DCA TO 15 E BWI TO 15 WSW ACY. ..MOORE..05/28/24 ATTN...WFO...LWX...AKQ...MHX...RAH... STATUS REPORT FOR WT 335 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MDC003-009-280240- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL CALVERT ANZ532-533-539-540-541-542-280240- CW . ADJACENT COASTAL WATERS INCLUDED ARE CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD CHESTER RIVER TO QUEENSTOWN MD EASTERN BAY CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER PATUXENT RIVER TO BROOMES ISLAND MD Read more

WW 0335 Status Updates
STATUS REPORT ON WW 335 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE SBY TO 10 WSW NHK TO 15 ENE DCA TO 15 E BWI TO 15 WSW ACY. ..MOORE..05/28/24 ATTN...WFO...LWX...AKQ...MHX...RAH... STATUS REPORT FOR WT 335 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MDC003-009-280240- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL CALVERT ANZ532-533-539-540-541-542-280240- CW . ADJACENT COASTAL WATERS INCLUDED ARE CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD CHESTER RIVER TO QUEENSTOWN MD EASTERN BAY CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER PATUXENT RIVER TO BROOMES ISLAND MD Read more

WW 0335 Status Updates
STATUS REPORT ON WW 335 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE SBY TO 10 WSW NHK TO 15 ENE DCA TO 15 E BWI TO 15 WSW ACY. ..MOORE..05/28/24 ATTN...WFO...LWX...AKQ...MHX...RAH... STATUS REPORT FOR WT 335 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MDC003-009-280240- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL CALVERT ANZ532-533-539-540-541-542-280240- CW . ADJACENT COASTAL WATERS INCLUDED ARE CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD CHESTER RIVER TO QUEENSTOWN MD EASTERN BAY CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER PATUXENT RIVER TO BROOMES ISLAND MD Read more

WW 0335 Status Updates
STATUS REPORT ON WW 335 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE SBY TO 10 WSW NHK TO 15 ENE DCA TO 15 E BWI TO 15 WSW ACY. ..MOORE..05/28/24 ATTN...WFO...LWX...AKQ...MHX...RAH... STATUS REPORT FOR WT 335 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MDC003-009-280240- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL CALVERT ANZ532-533-539-540-541-542-280240- CW . ADJACENT COASTAL WATERS INCLUDED ARE CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD CHESTER RIVER TO QUEENSTOWN MD EASTERN BAY CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER PATUXENT RIVER TO BROOMES ISLAND MD Read more

WW 335 TORNADO DC MD NC VA CW 271940Z - 280300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 335 NWS Storm Prediction Center Norman OK 340 PM EDT Mon May 27 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of District Of Columbia Central and Eastern Maryland Central and Eastern North Carolina Eastern and Northern Virginia Coastal Waters * Effective this Monday afternoon and evening from 340 PM until 1100 PM EDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Severe thunderstorms are expected to develop through the afternoon across the region. Damaging winds are expected to be the most common risk, but some hail is possible, and a moist environment and strong atmospheric winds will also support a tornado risk. The tornado watch area is approximately along and 75 statute miles east and west of a line from 40 miles north northeast of Baltimore MD to Jacksonville NC. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. && OTHER WATCH INFORMATION...CONTINUE...WW 333...WW 334... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24030. ...Guyer Read more

WW 0337 Status Updates
STATUS REPORT ON WW 337 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NW MOB TO 20 NW CEW TO 15 NNW DHN. ..MOORE..05/28/24 ATTN...WFO...MOB...TAE... STATUS REPORT FOR WS 337 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ALC003-097-280240- AL . ALABAMA COUNTIES INCLUDED ARE BALDWIN MOBILE FLC033-059-063-091-113-131-133-280240- FL . FLORIDA COUNTIES INCLUDED ARE ESCAMBIA HOLMES JACKSON OKALOOSA SANTA ROSA WALTON WASHINGTON GMZ630-631-632-633-634-635-636-650-655-280240- CW . ADJACENT COASTAL WATERS INCLUDED ARE NORTH MOBILE BAY Read more

WW 0337 Status Updates
STATUS REPORT ON WW 337 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 NW MOB TO 20 NW CEW TO 15 NNW DHN. ..MOORE..05/28/24 ATTN...WFO...MOB...TAE... STATUS REPORT FOR WS 337 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ALC003-097-280240- AL . ALABAMA COUNTIES INCLUDED ARE BALDWIN MOBILE FLC033-059-063-091-113-131-133-280240- FL . FLORIDA COUNTIES INCLUDED ARE ESCAMBIA HOLMES JACKSON OKALOOSA SANTA ROSA WALTON WASHINGTON GMZ630-631-632-633-634-635-636-650-655-280240- CW . ADJACENT COASTAL WATERS INCLUDED ARE NORTH MOBILE BAY Read more