Aggregator

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0442 PM CDT Wed Jul 30 2025 Valid 011200Z - 071200Z ...Synopsis... Late this week into the weekend, the subtropical ridge is expected to shift westward over more of the Southwest and amplify over the Rockies by early next week as a trough moves into the Pacific Northwest. Increasing southwesterly flow aloft from CA, through the Great Basin, and into the Rockies is expected with this pattern. By mid to late next week the subtropical ridge will generally remain anchored over the Southwest. ...Day 3/Friday... A relatively small area of isolated dry thunderstorms may develop during the afternoon along a quasi-stationary frontal boundary extending west to east from northern NV into the Snake River Plain and Caribou Range of ID. Mid-level ascent accompanying a shortwave trough will also aid in ascent later in the day/evening. Forecast soundings across this region continue to suggest low PWATs atop receptive fuels. ...Day 4/Saturday... An increasing mid-level height gradient between a subtle shortwave trough, traversing the Great Basin, and the subtropical ridge to its south is expected. A very dry and deeply mixed boundary layer below this stronger flow will promote momentum transfer aloft across northern AZ and UT. Only minor adjustments were made to the low probability area for Day 4/Saturday based on the latest extended model and ensemble trends. ...Day 6/Monday... After a slight decrease in wind speeds across the Southwest and Great Basin Day 5/Sunday, an approaching Pacific trough will again result in increasing mid-level flow on the northwestern fringe of the ridge. Very similar to Day 4/Saturday's threat, a low critical probability area has been introduced for central UT and far northwestern AZ since there is very reasonable agreement within the extended solutions and ensembles for this pattern. ..Barnes.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

Most of Texas' Coastal Bend received rain over the weekend, with totals between 0.5-1 inch. Soil moisture conditions continued to decline in most areas. Rice and corn harvests were in full swing. Grain sorghum harvest was complete with the exception of late-planted acres that followed failed cotton. Cotton harvest started in early planted fields and should progress well, although some fields were still maturing. Range and pasture conditions remained mostly fair to good due to earlier rains. Livestock remained in good condition thanks to earlier high-quality forage production. Pasture conditions began to decline due to dry conditions and heat, and hay harvest continued. Bermuda grass stem maggot and fall armyworms were active in hay fields. AgriLife Today (College Station, Texas), July 29, 2025

No Mesoscale Discussions are in effect as of Wed Jul 30 20:16:02 UTC 2025.

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...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 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...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 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...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 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...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 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...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 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...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 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...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 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...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 0253 PM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...CRITICAL FIRE WEATHER AREA FOR FAR NORTHWESTERN ARIZONA...CENTRAL UTAH...AND FAR NORTHWESTERN COLORADO... ...Update... Given the latest projected position of the mid-level shortwave trough and hi-resolution model trends for tomorrow/Thursday, the Isolated Dry Thunderstorm area was shifted eastward over more of the Great Basin where a lack of widespread rainfall continues to result in receptive fuels. For the Elevated area within the rest of the Great Basin, northwestern AZ, UT, and a portion of the Rockies, an upgrade to Critical was made through most of central UT where sustained wind speeds near 20-25 mph are expected to persist for several hours. The Elevated area was also extended eastward to account for higher wind speeds and low teen to single-digit RH. ..Barnes.. 07/30/2025 .PREV DISCUSSION... /ISSUED 0206 AM CDT Wed Jul 30 2025/ ...Synopsis... A mid-level trough, with embedded impulses, will linger along the West Coast as upper ridging persists across the central and eastern U.S. tomorrow (Thursday). Mid-level perturbations pivoting around the West Coast upper trough will encourage widespread 15-20 mph sustained southwesterly surface winds amid 15-20 percent RH across much of the Great Basin. Since these conditions will overspread dry fuels, Elevated highlights have been introduced. As a mid-level impulse gradually drifts northward across the Pacific Northwest, scattered thunderstorms will develop atop a dry boundary layer and dry fuels. However, PWATs may be higher compared to previous days, suggesting a potential mix of wet and dry thunderstorms. While isolated dry thunderstorm highlights have been introduced, consideration was also given for introducing Scattered dry thunderstorm highlights. However, the possibility for several storms producing wetting rains, and the potential for widespread stability to overspread the Pacific Northwest due to high-density thunderstorm coverage from Day 1, precludes greater highlights at this time. ...Please see www.spc.noaa.gov/fire for graphic product... Read more