Severe Storms

WW 0498 Status Updates
STATUS REPORT ON WW 498 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 ENE SNY TO 30 W VTN TO 10 NW PHP TO 65 ENE GCC. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1621 ..WEINMAN..07/10/25 ATTN...WFO...BIS...LBF...CYS...UNR...ABR... STATUS REPORT FOR WS 498 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC005-009-017-031-069-075-091-103-113-115-117-149-161-171- 100140- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BLAINE BROWN CHERRY GARDEN GRANT HOOKER KEYA PAHA LOGAN LOUP MCPHERSON ROCK SHERIDAN THOMAS NDC001-015-029-037-041-057-059-065-085-100140- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BURLEIGH EMMONS GRANT HETTINGER MERCER MORTON OLIVER SIOUX Read more

WW 0500 Status Updates
STATUS FOR WATCH 0500 HAS NOT BEEN ISSUED YET Read more

WW 0499 Status Updates
STATUS REPORT ON WW 499 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 S NHK TO 30 ENE BWI TO 20 E ABE. ..SPC..07/10/25 ATTN...WFO...PHI...AKQ... STATUS REPORT FOR WS 499 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DEC001-003-005-100140- DE . DELAWARE COUNTIES INCLUDED ARE KENT NEW CASTLE SUSSEX MDC011-019-029-035-039-041-045-047-100140- MD . MARYLAND COUNTIES INCLUDED ARE CAROLINE DORCHESTER KENT QUEEN ANNE'S SOMERSET TALBOT WICOMICO WORCESTER NJC001-005-007-009-011-015-019-021-023-025-029-033-035-100140- NJ . NEW JERSEY COUNTIES INCLUDED ARE ATLANTIC BURLINGTON CAMDEN CAPE MAY CUMBERLAND GLOUCESTER Read more

WW 0497 Status Updates
STATUS REPORT ON WW 497 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW GSO TO 35 SSE CHO TO 40 SSW DCA TO 25 W DCA TO 35 SSW CXY. ..SPC..07/09/25 ATTN...WFO...LWX...RNK...CTP...RLX...AKQ...PBZ... STATUS REPORT FOR WS 497 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-092340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC003-005-009-013-015-017-025-027-031-033-037-510-092340- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL BALTIMORE CALVERT CARROLL CECIL CHARLES HARFORD HOWARD MONTGOMERY PRINCE GEORGES ST. MARYS MARYLAND INDEPENDENT CITIES INCLUDED ARE BALTIMORE CITY NCC033-157-092340- Read more

WW 0497 Status Updates
STATUS REPORT ON WW 497 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW GSO TO 35 SSE CHO TO 40 SSW DCA TO 25 W DCA TO 35 SSW CXY. ..SPC..07/09/25 ATTN...WFO...LWX...RNK...CTP...RLX...AKQ...PBZ... STATUS REPORT FOR WS 497 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-092340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC003-005-009-013-015-017-025-027-031-033-037-510-092340- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL BALTIMORE CALVERT CARROLL CECIL CHARLES HARFORD HOWARD MONTGOMERY PRINCE GEORGES ST. MARYS MARYLAND INDEPENDENT CITIES INCLUDED ARE BALTIMORE CITY NCC033-157-092340- Read more

WW 0497 Status Updates
STATUS REPORT ON WW 497 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW GSO TO 35 SSE CHO TO 40 SSW DCA TO 25 W DCA TO 35 SSW CXY. ..SPC..07/09/25 ATTN...WFO...LWX...RNK...CTP...RLX...AKQ...PBZ... STATUS REPORT FOR WS 497 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-092340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC003-005-009-013-015-017-025-027-031-033-037-510-092340- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL BALTIMORE CALVERT CARROLL CECIL CHARLES HARFORD HOWARD MONTGOMERY PRINCE GEORGES ST. MARYS MARYLAND INDEPENDENT CITIES INCLUDED ARE BALTIMORE CITY NCC033-157-092340- Read more

WW 0497 Status Updates
STATUS REPORT ON WW 497 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW GSO TO 35 SSE CHO TO 40 SSW DCA TO 25 W DCA TO 35 SSW CXY. ..SPC..07/09/25 ATTN...WFO...LWX...RNK...CTP...RLX...AKQ...PBZ... STATUS REPORT FOR WS 497 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-092340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC003-005-009-013-015-017-025-027-031-033-037-510-092340- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL BALTIMORE CALVERT CARROLL CECIL CHARLES HARFORD HOWARD MONTGOMERY PRINCE GEORGES ST. MARYS MARYLAND INDEPENDENT CITIES INCLUDED ARE BALTIMORE CITY NCC033-157-092340- Read more

WW 0497 Status Updates
STATUS REPORT ON WW 497 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW GSO TO 35 SSE CHO TO 40 SSW DCA TO 25 W DCA TO 35 SSW CXY. ..SPC..07/09/25 ATTN...WFO...LWX...RNK...CTP...RLX...AKQ...PBZ... STATUS REPORT FOR WS 497 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-092340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC003-005-009-013-015-017-025-027-031-033-037-510-092340- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL BALTIMORE CALVERT CARROLL CECIL CHARLES HARFORD HOWARD MONTGOMERY PRINCE GEORGES ST. MARYS MARYLAND INDEPENDENT CITIES INCLUDED ARE BALTIMORE CITY NCC033-157-092340- Read more

WW 497 SEVERE TSTM DC MD NC PA VA WV CW 091800Z - 100200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 497 NWS Storm Prediction Center Norman OK 200 PM EDT Wed Jul 9 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Maryland Far Northwestern North Carolina South-Central Pennsylvania Northern, Western, and Central Virginia Eastern West Virginia Coastal Waters * Effective this Wednesday afternoon and evening from 200 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1 inch in diameter possible SUMMARY...Thunderstorm coverage is expected to increase across the region this afternoon, with multiple rounds of storms possible. Moderate buoyancy and vertical shear is expected to support bowing line segments capable of damaging wind gusts. A few instances of hail are possible as well, particularly over regions of higher terrain. The severe thunderstorm watch area is approximately along and 95 statute miles east and west of a line from 5 miles west northwest of Hagerstown MD to 60 miles south southwest of Dublin VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). 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 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier Read more

MD 1621 CONCERNING SEVERE THUNDERSTORM WATCH 498... FOR SOUTH-CENTRAL ND...CENTRAL SD...AND NORTH-CENTRAL NE
Mesoscale Discussion 1621 NWS Storm Prediction Center Norman OK 0630 PM CDT Wed Jul 09 2025 Areas affected...South-central ND...central SD...and north-central NE Concerning...Severe Thunderstorm Watch 498... Valid 092330Z - 100100Z The severe weather threat for Severe Thunderstorm Watch 498 continues. SUMMARY...Isolated/sporadic large hail and embedded severe wind gusts remain possible across Severe Thunderstorm Watch 498. While uncertain, there is some potential for eventual upscale growth into one or more clusters into tonight. DISCUSSION...Two disorganized clusters with transient/embedded deeper cores are drifting slowly east-southeastward across the Dakotas and northern NE this evening -- where periodic severe wind gusts and large hail are occurring. Weak large-scale forcing for ascent and strong buoyancy/steep deep-layer lapse rates have generally promoted outflow dominant storms with limited large-scale organization up to this point. Nevertheless, the strong buoyancy and long/generally straight hodographs (around 40 kt of effective shear) will continue to promote severe downbursts/outflow and sporadic large hail with the stronger embedded cores. While the weak forcing for ascent casts uncertainty on overall convective evolution, a gradually strengthening low-level jet may promote eventual upscale growth into one or more organized clusters into tonight. Confidence in this scenario is relatively higher for the southern area of storms currently over southern SD into northern NE -- as the low-level jet may tend to focus over this general region amid slightly stronger deep-layer shear. If this evolution can occur, the risk of severe wind gusts would increase with time, and a downstream watch would eventually be needed. ..Weinman.. 07/09/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FSD...ABR...BIS...LBF...UNR... LAT...LON 46990014 46129975 45229956 44219951 43219932 41729957 41330009 41310092 41320168 41740205 43040179 44910166 46500184 47180102 47180049 46990014 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 0498 Status Updates
STATUS REPORT ON WW 498 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE SNY TO 30 NNE AIA TO 40 S RAP TO 55 ENE GCC. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1621 ..WEINMAN..07/09/25 ATTN...WFO...BIS...LBF...CYS...UNR...ABR... STATUS REPORT FOR WS 498 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC005-009-017-031-069-075-091-103-113-115-117-149-161-171- 100040- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BLAINE BROWN CHERRY GARDEN GRANT HOOKER KEYA PAHA LOGAN LOUP MCPHERSON ROCK SHERIDAN THOMAS NDC001-015-029-037-041-057-059-065-085-100040- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BURLEIGH EMMONS GRANT HETTINGER MERCER MORTON OLIVER SIOUX Read more

WW 498 SEVERE TSTM ND NE SD 091945Z - 100300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 498 NWS Storm Prediction Center Norman OK 145 PM MDT Wed Jul 9 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of South-Central North Dakota Northwest into North-Central Nebraska Western and Central South Dakota * Effective this Wednesday afternoon and evening from 145 PM until 900 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph likely Scattered large hail and isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorm development is anticipated over the next few hours from the western Dakotas down into the Nebraska Panhandle. A few discrete supercells are possible within this region before evolving towards a more linear mode with time. One or more convective lines could then move eastward into more of the central Dakotas and north-central Nebraska, with strong to severe gusts as the primary risk. Some gusts over 75 mph are possible. The severe thunderstorm watch area is approximately along and 85 statute miles east and west of a line from 30 miles northwest of Bismarck ND to 40 miles southwest of Mullen NE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). 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. && OTHER WATCH INFORMATION...CONTINUE...WW 497... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28035. ...Mosier Read more

No Mesoscale Discussions are in effect as of Wed Jul 9 22:45:05 UTC 2025.

WW 0498 Status Updates
STATUS REPORT ON WW 498 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..WEINMAN..07/09/25 ATTN...WFO...BIS...LBF...CYS...UNR...ABR... STATUS REPORT FOR WS 498 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC005-009-013-017-031-045-069-075-091-103-113-115-117-123-149- 161-165-171-092340- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BLAINE BOX BUTTE BROWN CHERRY DAWES GARDEN GRANT HOOKER KEYA PAHA LOGAN LOUP MCPHERSON MORRILL ROCK SHERIDAN SIOUX THOMAS NDC001-015-029-037-041-057-059-065-085-092340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BURLEIGH EMMONS GRANT HETTINGER MERCER MORTON OLIVER SIOUX SDC007-019-021-031-033-041-047-055-063-065-071-075-081-085-093- 095-102-103-105-107-117-119-121-123-129-137-092340- Read more

MD 1620 CONCERNING SEVERE THUNDERSTORM WATCH 497... FOR PORTIONS OF MARYLAND...DELAWARE...PENNSYLVANIA...AND NEW JERSEY
Mesoscale Discussion 1620 NWS Storm Prediction Center Norman OK 0343 PM CDT Wed Jul 09 2025 Areas affected...Portions of Maryland...Delaware...Pennsylvania...and New Jersey Concerning...Severe Thunderstorm Watch 497... Valid 092043Z - 092245Z The severe weather threat for Severe Thunderstorm Watch 497 continues. SUMMARY...Convective trends are being monitored for the need for downstream watch issuance across parts of Maryland, Delaware, Pennsylvania, and New Jersey as storms spread east through early evening. DISCUSSION...Regional radar mosaics continue to show a slow, but steady, increase in convective coverage across southern PA and parts of northern MD as lift associated with a mid-level impulse continues to migrate east and overspreads a moderately buoyant air mass. Regional VWPs continue to sample 30-40 knot mid-level flow associated with the upper feature, but the nebulous forcing for ascent and modest mid-level lapse rates appear to be modulating convective intensity and longevity of more discrete cells across PA/MD. While the convective parameter space is supportive of organized/severe convection, it remains unclear how intense convection will become over the next few hours. Further south into eastern MD and DE, confidence is higher in a severe wind threat later this evening. A squall line is slowly organizing across central VA and is expected to continue intensifying over the next few hours (see recently issued MCD #1619 for additional details). Recent surface observations and MLCAPE analyses show a plume of rich low-level moisture/buoyancy extending into southern DE/southeast MD, which should maintain the convective line as it spreads east into the evening hours. Slow storm motions cast some uncertainty on exactly when a downstream watch will be needed, but recent high-res guidance suggest a damaging wind threat will begin to materialize between 23-01 UTC. ..Moore.. 07/09/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PHI...AKQ...CTP...LWX... LAT...LON 39057445 38737476 38387493 38137505 37887521 37787541 37867579 38117608 38547620 39057635 39297654 39487691 39717717 39927727 40127722 40397661 40527587 40457514 40247461 40057432 39787409 39477417 39057445 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN Read more

WW 0497 Status Updates
STATUS REPORT ON WW 497 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW GSO TO 35 SSE CHO TO 40 SSW DCA TO 25 W DCA TO 35 SSW CXY. ..SPC..07/09/25 ATTN...WFO...LWX...RNK...CTP...RLX...AKQ...PBZ... STATUS REPORT FOR WS 497 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-092340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC003-005-009-013-015-017-025-027-031-033-037-510-092340- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL BALTIMORE CALVERT CARROLL CECIL CHARLES HARFORD HOWARD MONTGOMERY PRINCE GEORGES ST. MARYS MARYLAND INDEPENDENT CITIES INCLUDED ARE BALTIMORE CITY NCC033-157-092340- Read more

WW 0497 Status Updates
STATUS REPORT ON WW 497 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW GSO TO 35 SSE CHO TO 40 SSW DCA TO 25 W DCA TO 35 SSW CXY. ..SPC..07/09/25 ATTN...WFO...LWX...RNK...CTP...RLX...AKQ...PBZ... STATUS REPORT FOR WS 497 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-092340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC003-005-009-013-015-017-025-027-031-033-037-510-092340- MD . MARYLAND COUNTIES INCLUDED ARE ANNE ARUNDEL BALTIMORE CALVERT CARROLL CECIL CHARLES HARFORD HOWARD MONTGOMERY PRINCE GEORGES ST. MARYS MARYLAND INDEPENDENT CITIES INCLUDED ARE BALTIMORE CITY NCC033-157-092340- Read more

WW 497 SEVERE TSTM DC MD NC PA VA WV CW 091800Z - 100200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 497 NWS Storm Prediction Center Norman OK 200 PM EDT Wed Jul 9 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Maryland Far Northwestern North Carolina South-Central Pennsylvania Northern, Western, and Central Virginia Eastern West Virginia Coastal Waters * Effective this Wednesday afternoon and evening from 200 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1 inch in diameter possible SUMMARY...Thunderstorm coverage is expected to increase across the region this afternoon, with multiple rounds of storms possible. Moderate buoyancy and vertical shear is expected to support bowing line segments capable of damaging wind gusts. A few instances of hail are possible as well, particularly over regions of higher terrain. The severe thunderstorm watch area is approximately along and 95 statute miles east and west of a line from 5 miles west northwest of Hagerstown MD to 60 miles south southwest of Dublin VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). 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 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0441 PM CDT Wed Jul 09 2025 Valid 111200Z - 171200Z ...Days 3-4/Friday-Saturday... A building mid-level ridge across the Western U.S. will promote lighter winds overall but steadily increasing temperatures across the region through the weekend. Farther east, a mid-level trough moving through the northern High Plains Days 3-4/Friday-Saturday will usher in cooler, post-frontal flow into much Northern/Central Plains through the weekend while also bringing scattered showers/thunderstorms to the central and southern High Plains, with wetting rains remaining along and east of the Continental Divide. ...Days 5-6/Sunday-Monday... Another mid-level trough translating southeastward from British Columbia into the Northern Tier states could bring a thunderstorm threat to portions of the Northern Rockies and MT High Plains Day 5/Monday but a deeper moisture plume could limit dry thunderstorm potential. Higher confidence exists for dry and breezy conditions across the Columbia River Basin on Sunday as stronger mid-level flow promotes dry, downslope winds into the basin, as well as accelerated valley winds across the Snake River Plain amid dry fuels and low RH on Monday. ...Day 7-8/Tuesday-Wednesday... A West Coast thermal trough will promote well above normal temperatures and low relative humidity across the coastal ranges of northern CA, OR and WA but winds appear to remain light from latest model guidance consensus. Additionally, confidence remains low of a return of deeper monsoon moisture into the Southwest around midweek, precluding introduction dry thunderstorm probabilities at this time. ..Williams.. 07/09/2025 ...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 0441 PM CDT Wed Jul 09 2025 Valid 111200Z - 171200Z ...Days 3-4/Friday-Saturday... A building mid-level ridge across the Western U.S. will promote lighter winds overall but steadily increasing temperatures across the region through the weekend. Farther east, a mid-level trough moving through the northern High Plains Days 3-4/Friday-Saturday will usher in cooler, post-frontal flow into much Northern/Central Plains through the weekend while also bringing scattered showers/thunderstorms to the central and southern High Plains, with wetting rains remaining along and east of the Continental Divide. ...Days 5-6/Sunday-Monday... Another mid-level trough translating southeastward from British Columbia into the Northern Tier states could bring a thunderstorm threat to portions of the Northern Rockies and MT High Plains Day 5/Monday but a deeper moisture plume could limit dry thunderstorm potential. Higher confidence exists for dry and breezy conditions across the Columbia River Basin on Sunday as stronger mid-level flow promotes dry, downslope winds into the basin, as well as accelerated valley winds across the Snake River Plain amid dry fuels and low RH on Monday. ...Day 7-8/Tuesday-Wednesday... A West Coast thermal trough will promote well above normal temperatures and low relative humidity across the coastal ranges of northern CA, OR and WA but winds appear to remain light from latest model guidance consensus. Additionally, confidence remains low of a return of deeper monsoon moisture into the Southwest around midweek, precluding introduction dry thunderstorm probabilities at this time. ..Williams.. 07/09/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more