Severe Storms

WW 0585 Status Updates
STATUS REPORT ON WW 585 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..SPC..08/11/25 ATTN...WFO...BOU...PUB...GLD...ABQ... STATUS REPORT FOR WS 585 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC001-005-009-011-013-014-017-025-031-035-039-041-055-061-063- 069-071-073-075-087-089-095-099-101-115-119-121-123-125- 110140- CO . COLORADO COUNTIES INCLUDED ARE ADAMS ARAPAHOE BACA BENT BOULDER BROOMFIELD CHEYENNE CROWLEY DENVER DOUGLAS ELBERT EL PASO HUERFANO KIOWA KIT CARSON LARIMER LAS ANIMAS LINCOLN LOGAN MORGAN OTERO PHILLIPS PROWERS PUEBLO SEDGWICK TELLER WASHINGTON WELD YUMA KSC023-110140- KS . KANSAS COUNTIES INCLUDED ARE CHEYENNE Read more

WW 585 SEVERE TSTM CO KS NE NM 101815Z - 110200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 585 NWS Storm Prediction Center Norman OK 1215 PM MDT Sun Aug 10 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Eastern Colorado Northwest Kansas Southwest Nebraska Northeast New Mexico * Effective this Sunday afternoon and evening from 1215 PM until 800 PM MDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 2.5 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...Thunderstorms will intensify through the afternoon across much of eastern Colorado. A few supercells are expected, capable of large hail and damaging winds. An isolated tornado is possible. The severe thunderstorm watch area is approximately along and 75 statute miles east and west of a line from 55 miles north northwest of Akron CO to 50 miles southeast of Trinidad CO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28030. ...Hart Read more

MD 1924 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR SOUTHEAST KS...SOUTHWEST MO...FAR NORTHEAST OK
Mesoscale Discussion 1924 NWS Storm Prediction Center Norman OK 0509 PM CDT Sun Aug 10 2025 Areas affected...Southeast KS...southwest MO...far northeast OK Concerning...Severe potential...Watch unlikely Valid 102209Z - 110015Z Probability of Watch Issuance...20 percent SUMMARY...Strong to potentially severe storms may develop into early evening. DISCUSSION...Storm initiation appears to be underway across southeast KS late this afternoon, in the vicinity of a surface boundary. Strong buoyancy (MLCAPE in excess of 3000 J/kg) will support potential for vigorous updrafts. Deep-layer flow is relatively modest, though veering wind profiles near/north of the boundary are resulting in effective SRH of around 100 m2/s, and at least transient storm organization will be possible given the magnitude of instability. A threat for isolated large hail and strong/damaging gusts could accompany the strongest storms, and a tornado cannot be ruled out given the potential for storm/boundary interactions. There may be a tendency for storms to quickly become outflow dominant within the rather weak flow regime, which could limit the longevity of individual storms and keep the severe threat relatively isolated. Initial storms may remain focused across southeast KS and southwest MO, but guidance generally suggests potential for backbuilding toward south-central KS and far north-central OK with time this evening, as low-level warm advection gradually increases near/north of the boundary within a strongly unstable and weakly capped environment. ..Dean/Guyer.. 08/10/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LSX...SGF...EAX...TSA...TOP...ICT...OUN... LAT...LON 36739750 36659816 37219832 37839798 38439614 38469336 38469249 37759226 37189395 36899552 36799687 36739750 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN Read more

MD 1925 CONCERNING SEVERE POTENTIAL...SEVERE THUNDERSTORM WATCH LIKELY FOR CENTRAL HIGH PLAINS
Mesoscale Discussion 1925 NWS Storm Prediction Center Norman OK 0642 PM CDT Sun Aug 10 2025 Areas affected...Central High Plains Concerning...Severe potential...Severe Thunderstorm Watch likely Valid 102342Z - 110115Z Probability of Watch Issuance...80 percent SUMMARY...Scattered thunderstorms will spread east with an attendant risk for damaging winds and large hail. Severe thunderstorm watch will likely be issued. DISCUSSION...Short-wave trough is digging southeast across western CO early this evening. Scattered robust convection has developed ahead of this feature across the High Plains from southeast WY, eastern CO, and northeast NM. This activity is spreading east within a favorable upslope environment characterized by ample buoyancy and modest mid-level flow. While LLJ is not expected to be particularly strong across western KS this evening, favorable storm inflow suggests ongoing activity may continue to grow upscale as it spreads east. While a few supercells are expected, upscale growth may lead to a larger complex that should generate wind along the leading squall line. ..Darrow/Guyer.. 08/10/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OUN...GID...LBF...DDC...GLD...AMA...PUB... LAT...LON 36700226 40480199 40490022 36959966 36700226 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN Read more

MD 1924 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR SOUTHEAST KS...SOUTHWEST MO...FAR NORTHEAST OK
Mesoscale Discussion 1924 NWS Storm Prediction Center Norman OK 0509 PM CDT Sun Aug 10 2025 Areas affected...Southeast KS...southwest MO...far northeast OK Concerning...Severe potential...Watch unlikely Valid 102209Z - 110015Z Probability of Watch Issuance...20 percent SUMMARY...Strong to potentially severe storms may develop into early evening. DISCUSSION...Storm initiation appears to be underway across southeast KS late this afternoon, in the vicinity of a surface boundary. Strong buoyancy (MLCAPE in excess of 3000 J/kg) will support potential for vigorous updrafts. Deep-layer flow is relatively modest, though veering wind profiles near/north of the boundary are resulting in effective SRH of around 100 m2/s, and at least transient storm organization will be possible given the magnitude of instability. A threat for isolated large hail and strong/damaging gusts could accompany the strongest storms, and a tornado cannot be ruled out given the potential for storm/boundary interactions. There may be a tendency for storms to quickly become outflow dominant within the rather weak flow regime, which could limit the longevity of individual storms and keep the severe threat relatively isolated. Initial storms may remain focused across southeast KS and southwest MO, but guidance generally suggests potential for backbuilding toward south-central KS and far north-central OK with time this evening, as low-level warm advection gradually increases near/north of the boundary within a strongly unstable and weakly capped environment. ..Dean/Guyer.. 08/10/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LSX...SGF...EAX...TSA...TOP...ICT...OUN... LAT...LON 36739750 36659816 37219832 37839798 38439614 38469336 38469249 37759226 37189395 36899552 36799687 36739750 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN Read more

MD 1923 CONCERNING SEVERE THUNDERSTORM WATCH 585... FOR EASTERN COLORADO TO FAR NORTHEAST NEW MEXICO
Mesoscale Discussion 1923 NWS Storm Prediction Center Norman OK 0453 PM CDT Sun Aug 10 2025 Areas affected...Eastern Colorado to far northeast New Mexico Concerning...Severe Thunderstorm Watch 585... Valid 102153Z - 110000Z The severe weather threat for Severe Thunderstorm Watch 585 continues. SUMMARY...Severe thunderstorms continue to increase in coverage and intensity across the Colorado High Plains. The best potential for significant hail may emerge across north-central/northeast Colorado over the next couple of hours. DISCUSSION...Regional radar imagery shows multiple supercells gradually intensifying across north-central CO with more isolated coverage with southward extent towards the CO/NM border. Recent surface observations show easterly flow ahead of a diffuse frontal zone across northeast/northern CO, which is helping to regionally enhance deep-layer wind shear to around 40 knots and is also advecting slightly higher-quality low-level moisture in from northwest KS/southwest NE (dewpoints in the low 60s). This somewhat better moisture is supporting a zone of MLCAPE values upwards of 1500 J/kg immediately downstream of the intensifying storms. As such, a corridor exists across north-central to northeast CO that should be favorable for supercell development and maintenance. Upscale growth is anticipated later this evening as storm interactions increase, but the exact timing remains somewhat uncertain. Until then, discrete to semi-discrete supercells will continue to pose a large hail risk, possibly as large as 2 inches given the thermodynamic and kinematic environment. Further south to the NM border, slightly less favorable thermodynamics (lower MLCAPE and lingering MLCIN) casts some uncertainty on storm coverage and intensity, but buoyancy and wind profiles remain supportive of supercells with an attendant hail/severe wind risk. ..Moore.. 08/10/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GLD...PUB...BOU...CYS...ABQ... LAT...LON 36840489 38130455 39390444 40300457 40690472 40910455 41010403 40920329 40560279 40030257 39470254 38840262 37320311 36920341 36740390 36650425 36630452 36660475 36840489 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN Read more

WW 0585 Status Updates
STATUS REPORT ON WW 585 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..SPC..08/10/25 ATTN...WFO...BOU...PUB...GLD...ABQ... STATUS REPORT FOR WS 585 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC001-005-009-011-013-014-017-025-031-035-039-041-055-061-063- 069-071-073-075-087-089-095-099-101-115-119-121-123-125- 110040- CO . COLORADO COUNTIES INCLUDED ARE ADAMS ARAPAHOE BACA BENT BOULDER BROOMFIELD CHEYENNE CROWLEY DENVER DOUGLAS ELBERT EL PASO HUERFANO KIOWA KIT CARSON LARIMER LAS ANIMAS LINCOLN LOGAN MORGAN OTERO PHILLIPS PROWERS PUEBLO SEDGWICK TELLER WASHINGTON WELD YUMA KSC023-110040- KS . KANSAS COUNTIES INCLUDED ARE CHEYENNE Read more

WW 585 SEVERE TSTM CO KS NE NM 101815Z - 110200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 585 NWS Storm Prediction Center Norman OK 1215 PM MDT Sun Aug 10 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Eastern Colorado Northwest Kansas Southwest Nebraska Northeast New Mexico * Effective this Sunday afternoon and evening from 1215 PM until 800 PM MDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 2.5 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...Thunderstorms will intensify through the afternoon across much of eastern Colorado. A few supercells are expected, capable of large hail and damaging winds. An isolated tornado is possible. The severe thunderstorm watch area is approximately along and 75 statute miles east and west of a line from 55 miles north northwest of Akron CO to 50 miles southeast of Trinidad CO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28030. ...Hart Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...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 0450 PM CDT Sun Aug 10 2025 Valid 121200Z - 181200Z Upper-level troughing will develop across the Pacific Northwest D3/Tuesday into D4/Wednesday, bringing an increase to winds amid dry conditions. Rain and thunderstorm chances may increase across this region by late in the period. As the western highs shifts into the Four Corners Region, monsoonal moisture may return northward across portions of Arizona through mid to lake week, with lingering isolated dry thunderstorm chances before a shift to more wetting rainfall potential. ...Dry Thunderstorms... Isolated thunderstorms D3/Tuesday - D5/Thursday will become more widely scattered with a gradual increase in moisture northward as the western high shifts into the Four Corners region through the weekend. This may lead to an increase in wetting rainfall, with less potential for dry thunderstorms. Some lingering isolated dry thunderstorm chances may be possible, but for now this threat appears too low for inclusion of any areas. ...Wind/RH... Breezy conditions are expected across the Pacific Northwest as the pattern becomes more progressive, with broad troughing and several shortwave disturbances moving through early to mid-week. The most widespread winds are expected D4/Wednesday, when Elevated to locally Critical conditions are expected across portions of the Columbia River Basin in eastern Washington and Oregon as a trough moves inland and enhanced westerly flow overspreads the Cascade Range. A 40% delineation was added with this outlook to cover this potential. ..Thornton.. 08/10/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

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