SPC Day 2 Fire Weather Outlook

4 months 3 weeks ago
SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0151 AM CST Thu Feb 27 2025 Valid 281200Z - 011200Z ...Synopsis... Mid-level ridging over the western US is expected to weaken as a shortwave trough approaches from southern Canada. The upper trough is forecast to intensify as it moves southeastward over the Plains and Midwest. An associated surface low will also quickly deepen over the Great Lakes. A dry cold front will move south through the central Plains with strong gusts to 25-30 mph along and behind the front. Dry conditions are also expected with afternoon RH values between 20 and 30% ahead of the cooler air mass. Ongoing drought and dry fine fuels are supportive of fire spread. However, larger fuels are less receptive currently. As such, some risk for wind-driven fire weather conditions is probable for a few hours D2/Friday afternoon across central/eastern SD/NE into far western portions of MN and IA. ..Lyons.. 02/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

4 months 3 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0150 AM CST Thu Feb 27 2025 Valid 271200Z - 281200Z ...NO CRITICAL AREAS... ...Synopsis... Split mid-level flow with a strong northern stream shortwave trough is forecast to amplify as it moves over the eastern US. At the same time, ridging will intensify to the west as an upper low weakens over the Southwest. At the surface, a cold front will quickly move eastward with gusty winds and drier air behind it. Dry and breezy conditions are possible in the lee of the Appalachians and across parts of the Southeast, supporting some localized fire-weather concerns. ...Southeast US... As the eastern end of the cold front moves through the eastern US, dry continental flow is likely in the lee of the southern Appalachians and the Southeastern US. Gusty west/northwest winds of 10-15 mph are possible along with afternoon minimum humidity near 35%. After several weeks of unusually dry conditions, area fuels are supportive of some localized fire-weather risk. However, increasing moisture ahead of the cold front will likely keep RH values high enough to limit more widespread fire-weather concerns. ...Desert Southwest... A backdoor cold front will continue to weaken as it moves westward over the Southwest and southern High Plains. A surface low over western AZ will support moderate easterly flow across parts of western NM and AZ. While the air mass will be cooler in the wake of the front, relatively mild temperatures may still support a few hours of RH below 25%. Overlapping with easterly gusts of 15-20 mph and dry fuels, a few hours of locally elevated fire-weather conditions are possible across eastern AZ and western NM. ..Lyons.. 02/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

4 months 3 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0150 AM CST Thu Feb 27 2025 Valid 271200Z - 281200Z ...NO CRITICAL AREAS... ...Synopsis... Split mid-level flow with a strong northern stream shortwave trough is forecast to amplify as it moves over the eastern US. At the same time, ridging will intensify to the west as an upper low weakens over the Southwest. At the surface, a cold front will quickly move eastward with gusty winds and drier air behind it. Dry and breezy conditions are possible in the lee of the Appalachians and across parts of the Southeast, supporting some localized fire-weather concerns. ...Southeast US... As the eastern end of the cold front moves through the eastern US, dry continental flow is likely in the lee of the southern Appalachians and the Southeastern US. Gusty west/northwest winds of 10-15 mph are possible along with afternoon minimum humidity near 35%. After several weeks of unusually dry conditions, area fuels are supportive of some localized fire-weather risk. However, increasing moisture ahead of the cold front will likely keep RH values high enough to limit more widespread fire-weather concerns. ...Desert Southwest... A backdoor cold front will continue to weaken as it moves westward over the Southwest and southern High Plains. A surface low over western AZ will support moderate easterly flow across parts of western NM and AZ. While the air mass will be cooler in the wake of the front, relatively mild temperatures may still support a few hours of RH below 25%. Overlapping with easterly gusts of 15-20 mph and dry fuels, a few hours of locally elevated fire-weather conditions are possible across eastern AZ and western NM. ..Lyons.. 02/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

4 months 3 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0150 AM CST Thu Feb 27 2025 Valid 271200Z - 281200Z ...NO CRITICAL AREAS... ...Synopsis... Split mid-level flow with a strong northern stream shortwave trough is forecast to amplify as it moves over the eastern US. At the same time, ridging will intensify to the west as an upper low weakens over the Southwest. At the surface, a cold front will quickly move eastward with gusty winds and drier air behind it. Dry and breezy conditions are possible in the lee of the Appalachians and across parts of the Southeast, supporting some localized fire-weather concerns. ...Southeast US... As the eastern end of the cold front moves through the eastern US, dry continental flow is likely in the lee of the southern Appalachians and the Southeastern US. Gusty west/northwest winds of 10-15 mph are possible along with afternoon minimum humidity near 35%. After several weeks of unusually dry conditions, area fuels are supportive of some localized fire-weather risk. However, increasing moisture ahead of the cold front will likely keep RH values high enough to limit more widespread fire-weather concerns. ...Desert Southwest... A backdoor cold front will continue to weaken as it moves westward over the Southwest and southern High Plains. A surface low over western AZ will support moderate easterly flow across parts of western NM and AZ. While the air mass will be cooler in the wake of the front, relatively mild temperatures may still support a few hours of RH below 25%. Overlapping with easterly gusts of 15-20 mph and dry fuels, a few hours of locally elevated fire-weather conditions are possible across eastern AZ and western NM. ..Lyons.. 02/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

4 months 3 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0150 AM CST Thu Feb 27 2025 Valid 271200Z - 281200Z ...NO CRITICAL AREAS... ...Synopsis... Split mid-level flow with a strong northern stream shortwave trough is forecast to amplify as it moves over the eastern US. At the same time, ridging will intensify to the west as an upper low weakens over the Southwest. At the surface, a cold front will quickly move eastward with gusty winds and drier air behind it. Dry and breezy conditions are possible in the lee of the Appalachians and across parts of the Southeast, supporting some localized fire-weather concerns. ...Southeast US... As the eastern end of the cold front moves through the eastern US, dry continental flow is likely in the lee of the southern Appalachians and the Southeastern US. Gusty west/northwest winds of 10-15 mph are possible along with afternoon minimum humidity near 35%. After several weeks of unusually dry conditions, area fuels are supportive of some localized fire-weather risk. However, increasing moisture ahead of the cold front will likely keep RH values high enough to limit more widespread fire-weather concerns. ...Desert Southwest... A backdoor cold front will continue to weaken as it moves westward over the Southwest and southern High Plains. A surface low over western AZ will support moderate easterly flow across parts of western NM and AZ. While the air mass will be cooler in the wake of the front, relatively mild temperatures may still support a few hours of RH below 25%. Overlapping with easterly gusts of 15-20 mph and dry fuels, a few hours of locally elevated fire-weather conditions are possible across eastern AZ and western NM. ..Lyons.. 02/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook

4 months 3 weeks ago
SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0150 AM CST Thu Feb 27 2025 Valid 271200Z - 281200Z ...NO CRITICAL AREAS... ...Synopsis... Split mid-level flow with a strong northern stream shortwave trough is forecast to amplify as it moves over the eastern US. At the same time, ridging will intensify to the west as an upper low weakens over the Southwest. At the surface, a cold front will quickly move eastward with gusty winds and drier air behind it. Dry and breezy conditions are possible in the lee of the Appalachians and across parts of the Southeast, supporting some localized fire-weather concerns. ...Southeast US... As the eastern end of the cold front moves through the eastern US, dry continental flow is likely in the lee of the southern Appalachians and the Southeastern US. Gusty west/northwest winds of 10-15 mph are possible along with afternoon minimum humidity near 35%. After several weeks of unusually dry conditions, area fuels are supportive of some localized fire-weather risk. However, increasing moisture ahead of the cold front will likely keep RH values high enough to limit more widespread fire-weather concerns. ...Desert Southwest... A backdoor cold front will continue to weaken as it moves westward over the Southwest and southern High Plains. A surface low over western AZ will support moderate easterly flow across parts of western NM and AZ. While the air mass will be cooler in the wake of the front, relatively mild temperatures may still support a few hours of RH below 25%. Overlapping with easterly gusts of 15-20 mph and dry fuels, a few hours of locally elevated fire-weather conditions are possible across eastern AZ and western NM. ..Lyons.. 02/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Feb 27, 2025 0700 UTC Day 2 Convective Outlook

4 months 3 weeks ago
SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1252 AM CST Thu Feb 27 2025 Valid 281200Z - 011200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible across parts of central and southern California on Friday. ...Synopsis... A mid-level trough will move off the East Coast on Friday with a secondary reinforcing trough digging into the Great Lakes in its wake. An upper low beneath a ridge across the western CONUS will drift slowly east and eventually overspread parts of central and southern California Friday night. ...Portions of central and southern California... Isolated to potentially scattered thunderstorms are forecast, mostly Friday evening and Friday night, as temperatures cool aloft as an upper low moves inland across central and southern California. While instability may be sufficient for a few thunderstorms, it should remain too weak for any appreciable severe weather threat. ..Bentley.. 02/27/2025 Read more

SPC Feb 27, 2025 0700 UTC Day 2 Convective Outlook

4 months 3 weeks ago
SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1252 AM CST Thu Feb 27 2025 Valid 281200Z - 011200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible across parts of central and southern California on Friday. ...Synopsis... A mid-level trough will move off the East Coast on Friday with a secondary reinforcing trough digging into the Great Lakes in its wake. An upper low beneath a ridge across the western CONUS will drift slowly east and eventually overspread parts of central and southern California Friday night. ...Portions of central and southern California... Isolated to potentially scattered thunderstorms are forecast, mostly Friday evening and Friday night, as temperatures cool aloft as an upper low moves inland across central and southern California. While instability may be sufficient for a few thunderstorms, it should remain too weak for any appreciable severe weather threat. ..Bentley.. 02/27/2025 Read more

SPC Feb 27, 2025 0700 UTC Day 2 Convective Outlook

4 months 3 weeks ago
SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1252 AM CST Thu Feb 27 2025 Valid 281200Z - 011200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible across parts of central and southern California on Friday. ...Synopsis... A mid-level trough will move off the East Coast on Friday with a secondary reinforcing trough digging into the Great Lakes in its wake. An upper low beneath a ridge across the western CONUS will drift slowly east and eventually overspread parts of central and southern California Friday night. ...Portions of central and southern California... Isolated to potentially scattered thunderstorms are forecast, mostly Friday evening and Friday night, as temperatures cool aloft as an upper low moves inland across central and southern California. While instability may be sufficient for a few thunderstorms, it should remain too weak for any appreciable severe weather threat. ..Bentley.. 02/27/2025 Read more

SPC Feb 27, 2025 0700 UTC Day 2 Convective Outlook

4 months 3 weeks ago
SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1252 AM CST Thu Feb 27 2025 Valid 281200Z - 011200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible across parts of central and southern California on Friday. ...Synopsis... A mid-level trough will move off the East Coast on Friday with a secondary reinforcing trough digging into the Great Lakes in its wake. An upper low beneath a ridge across the western CONUS will drift slowly east and eventually overspread parts of central and southern California Friday night. ...Portions of central and southern California... Isolated to potentially scattered thunderstorms are forecast, mostly Friday evening and Friday night, as temperatures cool aloft as an upper low moves inland across central and southern California. While instability may be sufficient for a few thunderstorms, it should remain too weak for any appreciable severe weather threat. ..Bentley.. 02/27/2025 Read more

SPC Feb 27, 2025 0700 UTC Day 2 Convective Outlook

4 months 3 weeks ago
SPC 0700Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 1252 AM CST Thu Feb 27 2025 Valid 281200Z - 011200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms are possible across parts of central and southern California on Friday. ...Synopsis... A mid-level trough will move off the East Coast on Friday with a secondary reinforcing trough digging into the Great Lakes in its wake. An upper low beneath a ridge across the western CONUS will drift slowly east and eventually overspread parts of central and southern California Friday night. ...Portions of central and southern California... Isolated to potentially scattered thunderstorms are forecast, mostly Friday evening and Friday night, as temperatures cool aloft as an upper low moves inland across central and southern California. While instability may be sufficient for a few thunderstorms, it should remain too weak for any appreciable severe weather threat. ..Bentley.. 02/27/2025 Read more

SPC Feb 27, 2025 0600 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1138 PM CST Wed Feb 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms are possible from the Mid and Upper Ohio Valley to the Carolinas/southern Virginia. ...Indiana/Ohio/Kentucky/West Virginia... Notable mid-level short-wave trough is currently digging across the upper MS Valley, and will extend across lower MI/IN region by 18z, before advancing into the middle Atlantic by late evening. Very cold temperatures are noted with this feature, and profiles should cool/steepen during the day as a secondary weak surface boundary advances southeast across the OH Valley. Latest model guidance suggests surface heating will aid steepening low-level lapse rates, and 0-3km values will likely approach 8-9 C/km by mid afternoon, despite surface temperatures only warming into the mid 40s-50s. As a result, forecast soundings yield several hundred J/kg SBCAPE within a strongly sheared west-northwesterly flow regime. Current thinking is scattered low-topped thunderstorms will evolve along the boundary by mid afternoon, then propagate southeast toward the higher terrain of the central Appalachians. While this activity will evolve within a weak-instability air mass, gusty winds and small hail may be noted with the more organized updrafts. At this time it appears the prospect for severe winds and hail are too low to warrant probabilities. ..Darrow/Lyons.. 02/27/2025 Read more

SPC Feb 27, 2025 0600 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1138 PM CST Wed Feb 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms are possible from the Mid and Upper Ohio Valley to the Carolinas/southern Virginia. ...Indiana/Ohio/Kentucky/West Virginia... Notable mid-level short-wave trough is currently digging across the upper MS Valley, and will extend across lower MI/IN region by 18z, before advancing into the middle Atlantic by late evening. Very cold temperatures are noted with this feature, and profiles should cool/steepen during the day as a secondary weak surface boundary advances southeast across the OH Valley. Latest model guidance suggests surface heating will aid steepening low-level lapse rates, and 0-3km values will likely approach 8-9 C/km by mid afternoon, despite surface temperatures only warming into the mid 40s-50s. As a result, forecast soundings yield several hundred J/kg SBCAPE within a strongly sheared west-northwesterly flow regime. Current thinking is scattered low-topped thunderstorms will evolve along the boundary by mid afternoon, then propagate southeast toward the higher terrain of the central Appalachians. While this activity will evolve within a weak-instability air mass, gusty winds and small hail may be noted with the more organized updrafts. At this time it appears the prospect for severe winds and hail are too low to warrant probabilities. ..Darrow/Lyons.. 02/27/2025 Read more

SPC Feb 27, 2025 0600 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1138 PM CST Wed Feb 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms are possible from the Mid and Upper Ohio Valley to the Carolinas/southern Virginia. ...Indiana/Ohio/Kentucky/West Virginia... Notable mid-level short-wave trough is currently digging across the upper MS Valley, and will extend across lower MI/IN region by 18z, before advancing into the middle Atlantic by late evening. Very cold temperatures are noted with this feature, and profiles should cool/steepen during the day as a secondary weak surface boundary advances southeast across the OH Valley. Latest model guidance suggests surface heating will aid steepening low-level lapse rates, and 0-3km values will likely approach 8-9 C/km by mid afternoon, despite surface temperatures only warming into the mid 40s-50s. As a result, forecast soundings yield several hundred J/kg SBCAPE within a strongly sheared west-northwesterly flow regime. Current thinking is scattered low-topped thunderstorms will evolve along the boundary by mid afternoon, then propagate southeast toward the higher terrain of the central Appalachians. While this activity will evolve within a weak-instability air mass, gusty winds and small hail may be noted with the more organized updrafts. At this time it appears the prospect for severe winds and hail are too low to warrant probabilities. ..Darrow/Lyons.. 02/27/2025 Read more

SPC Feb 27, 2025 0600 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1138 PM CST Wed Feb 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms are possible from the Mid and Upper Ohio Valley to the Carolinas/southern Virginia. ...Indiana/Ohio/Kentucky/West Virginia... Notable mid-level short-wave trough is currently digging across the upper MS Valley, and will extend across lower MI/IN region by 18z, before advancing into the middle Atlantic by late evening. Very cold temperatures are noted with this feature, and profiles should cool/steepen during the day as a secondary weak surface boundary advances southeast across the OH Valley. Latest model guidance suggests surface heating will aid steepening low-level lapse rates, and 0-3km values will likely approach 8-9 C/km by mid afternoon, despite surface temperatures only warming into the mid 40s-50s. As a result, forecast soundings yield several hundred J/kg SBCAPE within a strongly sheared west-northwesterly flow regime. Current thinking is scattered low-topped thunderstorms will evolve along the boundary by mid afternoon, then propagate southeast toward the higher terrain of the central Appalachians. While this activity will evolve within a weak-instability air mass, gusty winds and small hail may be noted with the more organized updrafts. At this time it appears the prospect for severe winds and hail are too low to warrant probabilities. ..Darrow/Lyons.. 02/27/2025 Read more

SPC Feb 27, 2025 0600 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1138 PM CST Wed Feb 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms are possible from the Mid and Upper Ohio Valley to the Carolinas/southern Virginia. ...Indiana/Ohio/Kentucky/West Virginia... Notable mid-level short-wave trough is currently digging across the upper MS Valley, and will extend across lower MI/IN region by 18z, before advancing into the middle Atlantic by late evening. Very cold temperatures are noted with this feature, and profiles should cool/steepen during the day as a secondary weak surface boundary advances southeast across the OH Valley. Latest model guidance suggests surface heating will aid steepening low-level lapse rates, and 0-3km values will likely approach 8-9 C/km by mid afternoon, despite surface temperatures only warming into the mid 40s-50s. As a result, forecast soundings yield several hundred J/kg SBCAPE within a strongly sheared west-northwesterly flow regime. Current thinking is scattered low-topped thunderstorms will evolve along the boundary by mid afternoon, then propagate southeast toward the higher terrain of the central Appalachians. While this activity will evolve within a weak-instability air mass, gusty winds and small hail may be noted with the more organized updrafts. At this time it appears the prospect for severe winds and hail are too low to warrant probabilities. ..Darrow/Lyons.. 02/27/2025 Read more

SPC Feb 27, 2025 0600 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1138 PM CST Wed Feb 26 2025 Valid 271200Z - 281200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated to scattered thunderstorms are possible from the Mid and Upper Ohio Valley to the Carolinas/southern Virginia. ...Indiana/Ohio/Kentucky/West Virginia... Notable mid-level short-wave trough is currently digging across the upper MS Valley, and will extend across lower MI/IN region by 18z, before advancing into the middle Atlantic by late evening. Very cold temperatures are noted with this feature, and profiles should cool/steepen during the day as a secondary weak surface boundary advances southeast across the OH Valley. Latest model guidance suggests surface heating will aid steepening low-level lapse rates, and 0-3km values will likely approach 8-9 C/km by mid afternoon, despite surface temperatures only warming into the mid 40s-50s. As a result, forecast soundings yield several hundred J/kg SBCAPE within a strongly sheared west-northwesterly flow regime. Current thinking is scattered low-topped thunderstorms will evolve along the boundary by mid afternoon, then propagate southeast toward the higher terrain of the central Appalachians. While this activity will evolve within a weak-instability air mass, gusty winds and small hail may be noted with the more organized updrafts. At this time it appears the prospect for severe winds and hail are too low to warrant probabilities. ..Darrow/Lyons.. 02/27/2025 Read more

SPC Feb 27, 2025 0100 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0655 PM CST Wed Feb 26 2025 Valid 270100Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms remain possible across the Midwest and Ohio Valley this evening. Severe thunderstorm threat is low. ...01z Update... Low-amplitude short-wave trough is ejecting across the Ohio Valley. Large-scale forcing ahead of this feature is primarily responsible for scattered convection that currently extends from western PA, arcing southwest along the Ohio River into southeast MO. While much of this activity is not producing lightning, isolated thunderstorms are noted along a corridor of somewhat stronger instability that extends into central OH. However, 00z sounding from ILN does not exhibit appreciable buoyancy, though lapse rates are fairly steep and moist. Deepest updrafts will continue to produce lightning for the next few hours, but overall thunderstorms should remain mostly isolated. ..Darrow.. 02/27/2025 Read more

SPC Feb 27, 2025 0100 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0655 PM CST Wed Feb 26 2025 Valid 270100Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms remain possible across the Midwest and Ohio Valley this evening. Severe thunderstorm threat is low. ...01z Update... Low-amplitude short-wave trough is ejecting across the Ohio Valley. Large-scale forcing ahead of this feature is primarily responsible for scattered convection that currently extends from western PA, arcing southwest along the Ohio River into southeast MO. While much of this activity is not producing lightning, isolated thunderstorms are noted along a corridor of somewhat stronger instability that extends into central OH. However, 00z sounding from ILN does not exhibit appreciable buoyancy, though lapse rates are fairly steep and moist. Deepest updrafts will continue to produce lightning for the next few hours, but overall thunderstorms should remain mostly isolated. ..Darrow.. 02/27/2025 Read more

SPC Feb 27, 2025 0100 UTC Day 1 Convective Outlook

4 months 3 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0655 PM CST Wed Feb 26 2025 Valid 270100Z - 271200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms remain possible across the Midwest and Ohio Valley this evening. Severe thunderstorm threat is low. ...01z Update... Low-amplitude short-wave trough is ejecting across the Ohio Valley. Large-scale forcing ahead of this feature is primarily responsible for scattered convection that currently extends from western PA, arcing southwest along the Ohio River into southeast MO. While much of this activity is not producing lightning, isolated thunderstorms are noted along a corridor of somewhat stronger instability that extends into central OH. However, 00z sounding from ILN does not exhibit appreciable buoyancy, though lapse rates are fairly steep and moist. Deepest updrafts will continue to produce lightning for the next few hours, but overall thunderstorms should remain mostly isolated. ..Darrow.. 02/27/2025 Read more
Checked
5 years 9 months ago
Severe Storms
Storm Prediction Center
Subscribe to Severe Storms feed