Severe Storms

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 PM CDT Thu Jun 12 2025 Valid 141200Z - 151200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE HIGH PLAINS INTO THE PLAINS... ...SUMMARY... Scattered strong to severe storms may occur on Saturday over parts of the central Plains. Isolated to widely scattered storms may occur from southern Montana into the southern High Plains. ...Central/Northern Plains... The highest storm coverage in this area appears to be within eastern Wyoming into western South Dakota and Nebraska given a shortwave perturbation moving through during the afternoon. With around 30-40 kts of effective shear and strong surface heating, scattered storms capable of large hail and severe wind gusts are possible. A low-level jet will develop during the evening and focus in Nebraska/South Dakota. Some activity may be able to last into the evening. Some guidance develops elevated storms farther east in South Dakota as the low-level jet strengthens. Elevated buoyancy will be large and shear will be sufficient for some storm organization. Though development is conditional, low severe probabilities have been extended into this area given the hail/isolated wind damage threat. ...Central/Southeast Montana... With the upper-level trough generally remaining in the Northwest, the strongest mid-level winds should remain over parts of the northern Rockies into the northern Plains. Lingering, sufficient low-level moisture should allow for isolated to widely scattered storms to develop within the higher terrain and spread into central/southeast Montana. Hail and severe gusts are the likely hazards with this activity. ...Southern Plains... There remains some potential for activity from overnight Friday activity to persist into Saturday morning. Guidance varies in the location of where storms may intensify as the surface heats, but the general theme is that a continuation of overnight activity or perhaps development along an outflow boundary is possible. Shear will not be overly strong, particularly with eastward extent, but large MLCAPE in a moist, uncapped environment could support a corridor of damaging wind potential. Low severe probabilities have been extended east to account for this possibility, though uncertainty is still high. ...Mid-South into Mid-Atlantic... Another day of scattered convection is possible in these regions as a low-amplitude, diffuse upper-level trough shifts eastward. Poor lapse rates and weak shear should limit the overall severe threat. Isolated damaging winds are possible, but, again, highlighting an area of greater organization is quite uncertain at this time. ..Wendt.. 06/12/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 PM CDT Thu Jun 12 2025 Valid 141200Z - 151200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE HIGH PLAINS INTO THE PLAINS... ...SUMMARY... Scattered strong to severe storms may occur on Saturday over parts of the central Plains. Isolated to widely scattered storms may occur from southern Montana into the southern High Plains. ...Central/Northern Plains... The highest storm coverage in this area appears to be within eastern Wyoming into western South Dakota and Nebraska given a shortwave perturbation moving through during the afternoon. With around 30-40 kts of effective shear and strong surface heating, scattered storms capable of large hail and severe wind gusts are possible. A low-level jet will develop during the evening and focus in Nebraska/South Dakota. Some activity may be able to last into the evening. Some guidance develops elevated storms farther east in South Dakota as the low-level jet strengthens. Elevated buoyancy will be large and shear will be sufficient for some storm organization. Though development is conditional, low severe probabilities have been extended into this area given the hail/isolated wind damage threat. ...Central/Southeast Montana... With the upper-level trough generally remaining in the Northwest, the strongest mid-level winds should remain over parts of the northern Rockies into the northern Plains. Lingering, sufficient low-level moisture should allow for isolated to widely scattered storms to develop within the higher terrain and spread into central/southeast Montana. Hail and severe gusts are the likely hazards with this activity. ...Southern Plains... There remains some potential for activity from overnight Friday activity to persist into Saturday morning. Guidance varies in the location of where storms may intensify as the surface heats, but the general theme is that a continuation of overnight activity or perhaps development along an outflow boundary is possible. Shear will not be overly strong, particularly with eastward extent, but large MLCAPE in a moist, uncapped environment could support a corridor of damaging wind potential. Low severe probabilities have been extended east to account for this possibility, though uncertainty is still high. ...Mid-South into Mid-Atlantic... Another day of scattered convection is possible in these regions as a low-amplitude, diffuse upper-level trough shifts eastward. Poor lapse rates and weak shear should limit the overall severe threat. Isolated damaging winds are possible, but, again, highlighting an area of greater organization is quite uncertain at this time. ..Wendt.. 06/12/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 PM CDT Thu Jun 12 2025 Valid 141200Z - 151200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE HIGH PLAINS INTO THE PLAINS... ...SUMMARY... Scattered strong to severe storms may occur on Saturday over parts of the central Plains. Isolated to widely scattered storms may occur from southern Montana into the southern High Plains. ...Central/Northern Plains... The highest storm coverage in this area appears to be within eastern Wyoming into western South Dakota and Nebraska given a shortwave perturbation moving through during the afternoon. With around 30-40 kts of effective shear and strong surface heating, scattered storms capable of large hail and severe wind gusts are possible. A low-level jet will develop during the evening and focus in Nebraska/South Dakota. Some activity may be able to last into the evening. Some guidance develops elevated storms farther east in South Dakota as the low-level jet strengthens. Elevated buoyancy will be large and shear will be sufficient for some storm organization. Though development is conditional, low severe probabilities have been extended into this area given the hail/isolated wind damage threat. ...Central/Southeast Montana... With the upper-level trough generally remaining in the Northwest, the strongest mid-level winds should remain over parts of the northern Rockies into the northern Plains. Lingering, sufficient low-level moisture should allow for isolated to widely scattered storms to develop within the higher terrain and spread into central/southeast Montana. Hail and severe gusts are the likely hazards with this activity. ...Southern Plains... There remains some potential for activity from overnight Friday activity to persist into Saturday morning. Guidance varies in the location of where storms may intensify as the surface heats, but the general theme is that a continuation of overnight activity or perhaps development along an outflow boundary is possible. Shear will not be overly strong, particularly with eastward extent, but large MLCAPE in a moist, uncapped environment could support a corridor of damaging wind potential. Low severe probabilities have been extended east to account for this possibility, though uncertainty is still high. ...Mid-South into Mid-Atlantic... Another day of scattered convection is possible in these regions as a low-amplitude, diffuse upper-level trough shifts eastward. Poor lapse rates and weak shear should limit the overall severe threat. Isolated damaging winds are possible, but, again, highlighting an area of greater organization is quite uncertain at this time. ..Wendt.. 06/12/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 PM CDT Thu Jun 12 2025 Valid 141200Z - 151200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE HIGH PLAINS INTO THE PLAINS... ...SUMMARY... Scattered strong to severe storms may occur on Saturday over parts of the central Plains. Isolated to widely scattered storms may occur from southern Montana into the southern High Plains. ...Central/Northern Plains... The highest storm coverage in this area appears to be within eastern Wyoming into western South Dakota and Nebraska given a shortwave perturbation moving through during the afternoon. With around 30-40 kts of effective shear and strong surface heating, scattered storms capable of large hail and severe wind gusts are possible. A low-level jet will develop during the evening and focus in Nebraska/South Dakota. Some activity may be able to last into the evening. Some guidance develops elevated storms farther east in South Dakota as the low-level jet strengthens. Elevated buoyancy will be large and shear will be sufficient for some storm organization. Though development is conditional, low severe probabilities have been extended into this area given the hail/isolated wind damage threat. ...Central/Southeast Montana... With the upper-level trough generally remaining in the Northwest, the strongest mid-level winds should remain over parts of the northern Rockies into the northern Plains. Lingering, sufficient low-level moisture should allow for isolated to widely scattered storms to develop within the higher terrain and spread into central/southeast Montana. Hail and severe gusts are the likely hazards with this activity. ...Southern Plains... There remains some potential for activity from overnight Friday activity to persist into Saturday morning. Guidance varies in the location of where storms may intensify as the surface heats, but the general theme is that a continuation of overnight activity or perhaps development along an outflow boundary is possible. Shear will not be overly strong, particularly with eastward extent, but large MLCAPE in a moist, uncapped environment could support a corridor of damaging wind potential. Low severe probabilities have been extended east to account for this possibility, though uncertainty is still high. ...Mid-South into Mid-Atlantic... Another day of scattered convection is possible in these regions as a low-amplitude, diffuse upper-level trough shifts eastward. Poor lapse rates and weak shear should limit the overall severe threat. Isolated damaging winds are possible, but, again, highlighting an area of greater organization is quite uncertain at this time. ..Wendt.. 06/12/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 PM CDT Thu Jun 12 2025 Valid 141200Z - 151200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE HIGH PLAINS INTO THE PLAINS... ...SUMMARY... Scattered strong to severe storms may occur on Saturday over parts of the central Plains. Isolated to widely scattered storms may occur from southern Montana into the southern High Plains. ...Central/Northern Plains... The highest storm coverage in this area appears to be within eastern Wyoming into western South Dakota and Nebraska given a shortwave perturbation moving through during the afternoon. With around 30-40 kts of effective shear and strong surface heating, scattered storms capable of large hail and severe wind gusts are possible. A low-level jet will develop during the evening and focus in Nebraska/South Dakota. Some activity may be able to last into the evening. Some guidance develops elevated storms farther east in South Dakota as the low-level jet strengthens. Elevated buoyancy will be large and shear will be sufficient for some storm organization. Though development is conditional, low severe probabilities have been extended into this area given the hail/isolated wind damage threat. ...Central/Southeast Montana... With the upper-level trough generally remaining in the Northwest, the strongest mid-level winds should remain over parts of the northern Rockies into the northern Plains. Lingering, sufficient low-level moisture should allow for isolated to widely scattered storms to develop within the higher terrain and spread into central/southeast Montana. Hail and severe gusts are the likely hazards with this activity. ...Southern Plains... There remains some potential for activity from overnight Friday activity to persist into Saturday morning. Guidance varies in the location of where storms may intensify as the surface heats, but the general theme is that a continuation of overnight activity or perhaps development along an outflow boundary is possible. Shear will not be overly strong, particularly with eastward extent, but large MLCAPE in a moist, uncapped environment could support a corridor of damaging wind potential. Low severe probabilities have been extended east to account for this possibility, though uncertainty is still high. ...Mid-South into Mid-Atlantic... Another day of scattered convection is possible in these regions as a low-amplitude, diffuse upper-level trough shifts eastward. Poor lapse rates and weak shear should limit the overall severe threat. Isolated damaging winds are possible, but, again, highlighting an area of greater organization is quite uncertain at this time. ..Wendt.. 06/12/2025 Read more

SPC 1930Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0227 PM CDT Thu Jun 12 2025 Valid 141200Z - 151200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS MUCH OF THE HIGH PLAINS INTO THE PLAINS... ...SUMMARY... Scattered strong to severe storms may occur on Saturday over parts of the central Plains. Isolated to widely scattered storms may occur from southern Montana into the southern High Plains. ...Central/Northern Plains... The highest storm coverage in this area appears to be within eastern Wyoming into western South Dakota and Nebraska given a shortwave perturbation moving through during the afternoon. With around 30-40 kts of effective shear and strong surface heating, scattered storms capable of large hail and severe wind gusts are possible. A low-level jet will develop during the evening and focus in Nebraska/South Dakota. Some activity may be able to last into the evening. Some guidance develops elevated storms farther east in South Dakota as the low-level jet strengthens. Elevated buoyancy will be large and shear will be sufficient for some storm organization. Though development is conditional, low severe probabilities have been extended into this area given the hail/isolated wind damage threat. ...Central/Southeast Montana... With the upper-level trough generally remaining in the Northwest, the strongest mid-level winds should remain over parts of the northern Rockies into the northern Plains. Lingering, sufficient low-level moisture should allow for isolated to widely scattered storms to develop within the higher terrain and spread into central/southeast Montana. Hail and severe gusts are the likely hazards with this activity. ...Southern Plains... There remains some potential for activity from overnight Friday activity to persist into Saturday morning. Guidance varies in the location of where storms may intensify as the surface heats, but the general theme is that a continuation of overnight activity or perhaps development along an outflow boundary is possible. Shear will not be overly strong, particularly with eastward extent, but large MLCAPE in a moist, uncapped environment could support a corridor of damaging wind potential. Low severe probabilities have been extended east to account for this possibility, though uncertainty is still high. ...Mid-South into Mid-Atlantic... Another day of scattered convection is possible in these regions as a low-amplitude, diffuse upper-level trough shifts eastward. Poor lapse rates and weak shear should limit the overall severe threat. Isolated damaging winds are possible, but, again, highlighting an area of greater organization is quite uncertain at this time. ..Wendt.. 06/12/2025 Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0218 PM CDT Thu Jun 12 2025 Valid 131200Z - 141200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF NORTHWEST NEVADA... ...19z Update... Overall the prior forecast remains on track. Model consensus has trended toward stronger winds (15-25 mph) and lower humidity in the lee of the Cascades Friday. This will support widespread elevated, and several hours of critical fire-weather concerns across northwest and western NV. Have added a small critical across northwest NV where the best overlap of dry/breezy conditions and supportive fuels will occur. ..Lyons.. 06/12/2025 .PREV DISCUSSION... /ISSUED 1145 PM CDT Wed Jun 11 2025/ ...Synopsis... A mid-level trough will impinge on the northern Rockies while upper ridging becomes established across the Plains toward the Appalachians tomorrow (Friday). The passage of the Northern Rockies trough will encourage yet another day of dry downslope flow to the lee of both the Cascades and Sierra by afternoon. 15-20 mph sustained westerly surface winds will overlap with 15-20 percent RH, atop dry fuels, for several hours Friday afternoon, warranting Elevated highlights. ...Please see www.spc.noaa.gov/fire for graphic product... Read more