Severe Storms

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...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 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...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 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...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 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...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 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...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 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...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 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...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 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...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 0206 AM CDT Wed Jul 30 2025 Valid 311200Z - 011200Z ...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. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0155 AM CDT Wed Jul 30 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR MUCH OF CENTRAL OREGON INTO EXTREME NORTHERN CALIFORNIA AND EXTREME NORTHWESTERN NEVADA... ...Synopsis... A mid-level trough will meander along the West Coast while upper ridging persists across the CONUS east of the Rockies today. A pronounced mid-level impulse will pivot around the mid-level trough and move north across the Pacific Northwest through the day. Upper support from this glancing impulse will encourage dry and breezy conditions across portions of the Great Basin, and scattered thunderstorm development over the Pacific Northwest. ...Great Basin... Upper support from the glancing mid-level impulse will support 15+ mph sustained southwesterly surface winds amid 15-20 percent RH for several hours during the afternoon. These dry and breezy conditions will overspread fuel beds that are receptive to fire spread, warranting the introduction of elevated highlights. ...Pacific Northwest... Mid-level moisture will also pivot around the upper trough, with the aforementioned mid-level impulse acting as a source of enhanced lift to support several clusters of high-based thunderstorms by mid afternoon across much of the Pacific Northwest, warranting isolated dry thunderstorm highlights. Forecast soundings depict inverted-v profiles on a widespread basis across extreme northwest Nevada, extreme northern California, and much of central Oregon, including in some regions west of the Cascades. The passage of the mid-level impulse may also support faster storm speeds, and some of the stronger storms may even produce erratic wind gusts. The expectation for faster moving, higher density clusters of thunderstorms overspreading very dry fuels necessitates scattered dry thunderstorm highlights. ..Squitieri.. 07/30/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more