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MD 0748 CONCERNING SEVERE THUNDERSTORM WATCH 239...240...242... FOR TENNESSEE VALLEY INTO CENTRAL CAROLINAS
Mesoscale Discussion 0748 NWS Storm Prediction Center Norman OK 0611 PM CDT Thu May 08 2025 Areas affected...Tennessee Valley into central Carolinas Concerning...Severe Thunderstorm Watch 239...240...242... Valid 082311Z - 090015Z The severe weather threat for Severe Thunderstorm Watch 239, 240, 242 continues. SUMMARY...Several clusters of strong to severe thunderstorms will continue to affect the region through the early evening, before diurnal cooling weakens storms. Large hail and locally damaging wind gusts are the primary concern. DISCUSSION...Recent regional radar imagery continues to show clusters of thunderstorms from middle TN and northern AL into southern WV. Another broken line of storms extends from south-central VA into upstate SC. Several of these storms continue to show loosely-organized rotating updrafts capable of hail and gusty winds. Activity will likely begin to diminish in intensity during the next 1-2 hours as diurnal cooling occurs and instability weakens. One area that may see continued convective development will be across southern NC into parts of northern SC - in vicinity of a weak mid-level shortwave trough seen in water vapor imagery. CAPE values of 1500+ J/kg and sufficient westerly flow aloft may maintain a risk of severe storms for a few more hours. ..Hart.. 05/08/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...AKQ...RAH...ILM...RNK...RLX...CAE...GSP...MRX... JKL...FFC...LMK...OHX...BMX...HUN...MEG...JAN... LAT...LON 35358753 36318606 37228446 38188261 37768047 36717843 35207879 34318037 34188184 34288276 34628372 34408528 33298718 33118820 33208873 33798847 34488808 35358753 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

WW 0238 Status Updates
STATUS REPORT ON WW 238 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S MKL TO 20 ENE MKL TO 40 WSW BNA TO 35 SSE BWG TO 25 ENE BWG TO 55 W LOZ. ..HART..05/08/25 ATTN...WFO...LMK...PAH...OHX...MEG... STATUS REPORT FOR WS 238 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC001-009-053-057-169-171-207-090040- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR BARREN CLINTON CUMBERLAND METCALFE MONROE RUSSELL MSC003-009-057-081-115-117-139-141-145-090040- MS . MISSISSIPPI COUNTIES INCLUDED ARE ALCORN BENTON ITAWAMBA LEE PONTOTOC PRENTISS TIPPAH TISHOMINGO UNION TNC003-015-023-027-031-035-037-039-041-049-055-061-071-077-081- 087-099-101-109-111-117-119-133-135-137-141-149-159-165-169-175- 177-181-185-187-189-090040- TN Read more

WW 0238 Status Updates
STATUS REPORT ON WW 238 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S MKL TO 20 ENE MKL TO 40 WSW BNA TO 35 SSE BWG TO 25 ENE BWG TO 55 W LOZ. ..HART..05/08/25 ATTN...WFO...LMK...PAH...OHX...MEG... STATUS REPORT FOR WS 238 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC001-009-053-057-169-171-207-090040- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR BARREN CLINTON CUMBERLAND METCALFE MONROE RUSSELL MSC003-009-057-081-115-117-139-141-145-090040- MS . MISSISSIPPI COUNTIES INCLUDED ARE ALCORN BENTON ITAWAMBA LEE PONTOTOC PRENTISS TIPPAH TISHOMINGO UNION TNC003-015-023-027-031-035-037-039-041-049-055-061-071-077-081- 087-099-101-109-111-117-119-133-135-137-141-149-159-165-169-175- 177-181-185-187-189-090040- TN Read more

WW 0238 Status Updates
STATUS REPORT ON WW 238 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S MKL TO 20 ENE MKL TO 40 WSW BNA TO 35 SSE BWG TO 25 ENE BWG TO 55 W LOZ. ..HART..05/08/25 ATTN...WFO...LMK...PAH...OHX...MEG... STATUS REPORT FOR WS 238 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC001-009-053-057-169-171-207-090040- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR BARREN CLINTON CUMBERLAND METCALFE MONROE RUSSELL MSC003-009-057-081-115-117-139-141-145-090040- MS . MISSISSIPPI COUNTIES INCLUDED ARE ALCORN BENTON ITAWAMBA LEE PONTOTOC PRENTISS TIPPAH TISHOMINGO UNION TNC003-015-023-027-031-035-037-039-041-049-055-061-071-077-081- 087-099-101-109-111-117-119-133-135-137-141-149-159-165-169-175- 177-181-185-187-189-090040- TN Read more

WW 0238 Status Updates
STATUS REPORT ON WW 238 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S MKL TO 20 ENE MKL TO 40 WSW BNA TO 35 SSE BWG TO 25 ENE BWG TO 55 W LOZ. ..HART..05/08/25 ATTN...WFO...LMK...PAH...OHX...MEG... STATUS REPORT FOR WS 238 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC001-009-053-057-169-171-207-090040- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR BARREN CLINTON CUMBERLAND METCALFE MONROE RUSSELL MSC003-009-057-081-115-117-139-141-145-090040- MS . MISSISSIPPI COUNTIES INCLUDED ARE ALCORN BENTON ITAWAMBA LEE PONTOTOC PRENTISS TIPPAH TISHOMINGO UNION TNC003-015-023-027-031-035-037-039-041-049-055-061-071-077-081- 087-099-101-109-111-117-119-133-135-137-141-149-159-165-169-175- 177-181-185-187-189-090040- TN Read more

WW 0238 Status Updates
STATUS REPORT ON WW 238 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S MKL TO 20 ENE MKL TO 40 WSW BNA TO 35 SSE BWG TO 25 ENE BWG TO 55 W LOZ. ..HART..05/08/25 ATTN...WFO...LMK...PAH...OHX...MEG... STATUS REPORT FOR WS 238 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC001-009-053-057-169-171-207-090040- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR BARREN CLINTON CUMBERLAND METCALFE MONROE RUSSELL MSC003-009-057-081-115-117-139-141-145-090040- MS . MISSISSIPPI COUNTIES INCLUDED ARE ALCORN BENTON ITAWAMBA LEE PONTOTOC PRENTISS TIPPAH TISHOMINGO UNION TNC003-015-023-027-031-035-037-039-041-049-055-061-071-077-081- 087-099-101-109-111-117-119-133-135-137-141-149-159-165-169-175- 177-181-185-187-189-090040- TN Read more

WW 238 SEVERE TSTM KY TN 081725Z - 090100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 238 NWS Storm Prediction Center Norman OK 1225 PM CDT Thu May 8 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and Central Kentucky Western and Middle Tennessee * Effective this Thursday afternoon and evening from 1225 PM until 800 PM CDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph likely SUMMARY...Multiple supercells and thunderstorm clusters are expected to develop and spread generally eastward this afternoon and evening. Both large hail generally 1-2 inches in diameter and damaging winds will be a threat with this activity. Peak gusts could reach up to 60-70 mph if any thunderstorms can form. The severe thunderstorm watch area is approximately along and 65 statute miles north and south of a line from 20 miles north of Jackson TN to 40 miles north of Crossville TN. 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. && AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27030. ...Gleason Read more

MD 0749 CONCERNING SEVERE POTENTIAL...WATCH LIKELY FOR PORTIONS OF SOUTH TEXAS
Mesoscale Discussion 0749 NWS Storm Prediction Center Norman OK 0655 PM CDT Thu May 08 2025 Areas affected...portions of south Texas Concerning...Severe potential...Watch likely Valid 082355Z - 090100Z Probability of Watch Issuance...95 percent SUMMARY...A new small WW will be issued shortly. A cluster of storms is expected to continue eastward toward the Texas coast with a risk for hail and damaging winds this evening. DISCUSSION...As of 2355 UTC, regional radar analysis showed a cluster of severe storms ongoing near a diffuse front/modified outflow boundary across portions of the Rio Grande Valley and South TX. Recent radar trends and CAM guidance continue to suggest upscale growth is likely with this cluster, and additional storms moving over the River in the next few hours. The environment downstream remains favorable for organized severe storms with moderate instability and deep-layer shear. While some prior convection and the coastal front have reduced temperatures near the immediate coast somewhat, robust moisture (surface dewpoints in the 70s F) and steep mid-level lapse rates will likely offset nocturnal stabilization this evening. This suggest the threat for damaging winds and hail may continue into the immediate coastal counties and offshore tonight. Given the increasing severe threat, a small WW will be issued shortly east of WW241. ..Lyons/Smith.. 05/08/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CRP...EWX...BRO... LAT...LON 27409873 28389885 28729866 28549758 28199693 27149724 27039761 26819823 26919833 27409873 MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN Read more

MD 0748 CONCERNING SEVERE THUNDERSTORM WATCH 239...240...242... FOR TENNESSEE VALLEY INTO CENTRAL CAROLINAS
Mesoscale Discussion 0748 NWS Storm Prediction Center Norman OK 0611 PM CDT Thu May 08 2025 Areas affected...Tennessee Valley into central Carolinas Concerning...Severe Thunderstorm Watch 239...240...242... Valid 082311Z - 090015Z The severe weather threat for Severe Thunderstorm Watch 239, 240, 242 continues. SUMMARY...Several clusters of strong to severe thunderstorms will continue to affect the region through the early evening, before diurnal cooling weakens storms. Large hail and locally damaging wind gusts are the primary concern. DISCUSSION...Recent regional radar imagery continues to show clusters of thunderstorms from middle TN and northern AL into southern WV. Another broken line of storms extends from south-central VA into upstate SC. Several of these storms continue to show loosely-organized rotating updrafts capable of hail and gusty winds. Activity will likely begin to diminish in intensity during the next 1-2 hours as diurnal cooling occurs and instability weakens. One area that may see continued convective development will be across southern NC into parts of northern SC - in vicinity of a weak mid-level shortwave trough seen in water vapor imagery. CAPE values of 1500+ J/kg and sufficient westerly flow aloft may maintain a risk of severe storms for a few more hours. ..Hart.. 05/08/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...AKQ...RAH...ILM...RNK...RLX...CAE...GSP...MRX... JKL...FFC...LMK...OHX...BMX...HUN...MEG...JAN... LAT...LON 35358753 36318606 37228446 38188261 37768047 36717843 35207879 34318037 34188184 34288276 34628372 34408528 33298718 33118820 33208873 33798847 34488808 35358753 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 0747 CONCERNING SEVERE THUNDERSTORM WATCH 241... FOR PARS OF THE RIO GRANDE VALLEY IN SOUTHERN TEXAS
Mesoscale Discussion 0747 NWS Storm Prediction Center Norman OK 0525 PM CDT Thu May 08 2025 Areas affected...pars of the Rio Grande Valley in southern Texas Concerning...Severe Thunderstorm Watch 241... Valid 082225Z - 090000Z The severe weather threat for Severe Thunderstorm Watch 241 continues. SUMMARY...Scattered severe storms, including a few supercells persist across the Watch area. Hail and isolated damaging winds remain likely this evening. DISCUSSION...As of 2220 UTC, scattered strong to severe storms were ongoing across much of the Rio Grande Valley and south TX. Several supercells were noted across Zapata/Jim Hogg and Dimmit Counties. The environment ahead of these storms, and additional storms crossing the border, remains broadly favorable for severe weather with 40-50 kt of effective shear and 2000 J/kg of MLCAPE. Hail remains the primary severe risk with steep mid-level lapse rates and the supercell mode. However, some clustering has been noted along the diffuse front farther north. This should continue into the evening as noted by some CAMS. This may support a greater risk for damaging winds across the Rio Grande Valley and south TX into tonight. Given the ongoing storms, and additional development crossing the border through the next few hours, the severe risk will continue across much of WW241. ..Lyons.. 05/08/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CRP...EWX...BRO... LAT...LON 29620133 29800055 29679978 28769874 27379829 26479782 25979744 25889775 26189907 26709934 28130036 29330112 29620133 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 0242 Status Updates
STATUS REPORT ON WW 242 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0748 ..HART..05/08/25 ATTN...WFO...FFC...GSP...RAH...RNK...CAE... STATUS REPORT FOR WS 242 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS GAC011-015-047-055-057-083-085-105-111-115-117-119-123-129-137- 139-147-187-213-227-241-257-281-291-295-311-313-090040- GA . GEORGIA COUNTIES INCLUDED ARE BANKS BARTOW CATOOSA CHATTOOGA CHEROKEE DADE DAWSON ELBERT FANNIN FLOYD FORSYTH FRANKLIN GILMER GORDON HABERSHAM HALL HART LUMPKIN MURRAY PICKENS RABUN STEPHENS TOWNS UNION WALKER WHITE WHITFIELD NCC001-003-005-007-009-011-021-023-025-027-033-035-037-045-051- 057-059-067-071-075-081-085-087-089-093-097-099-105-109-111-113- 115-119-121-123-125-135-145-149-151-153-157-159-161-165-167-169- 171-173-175-179-189-193-197-199-090040- NC . NORTH CAROLINA COUNTIES INCLUDED ARE Read more

WW 242 SEVERE TSTM GA NC SC VA 082020Z - 090400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 242 NWS Storm Prediction Center Norman OK 420 PM EDT Thu May 8 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern Georgia Western and Central North Carolina Western and Northern South Carolina Southwest Virginia * Effective this Thursday afternoon from 420 PM until Midnight EDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph likely SUMMARY...Thunderstorms will continue developing this afternoon and evening. The most intense cores will be capable of producing large hail up to 1-2 inches in diameter. There should also be some potential for a cluster to develop later this evening and pose a greater threat for severe/damaging winds, with peak gusts up to 60-70 mph. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 50 miles southwest of Hot Springs NC to 40 miles south southeast of Danville VA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). 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 238...WW 239...WW 240...WW 241... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27030. ...Gleason Read more

WW 0240 Status Updates
STATUS REPORT ON WW 240 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 W LOZ TO 40 NNE CSV TO 40 S LOZ TO 40 NW TRI TO 45 E JKL. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0748 ..HART..05/08/25 ATTN...WFO...JKL...MRX...RLX... STATUS REPORT FOR WS 240 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC195-090040- KY . KENTUCKY COUNTIES INCLUDED ARE PIKE NCC039-043-090040- NC . NORTH CAROLINA COUNTIES INCLUDED ARE CHEROKEE CLAY TNC001-007-009-011-013-019-025-029-057-059-063-065-067-073-089- 091-093-105-107-115-121-123-129-139-143-145-151-153-155-163-171- 173-179-090040- TN . TENNESSEE COUNTIES INCLUDED ARE Read more

WW 240 SEVERE TSTM KY NC TN VA 081930Z - 090300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 240 NWS Storm Prediction Center Norman OK 330 PM EDT Thu May 8 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Eastern Kentucky Far Southwest North Carolina Eastern Tennessee Far Southwest Virginia * Effective this Thursday afternoon and evening from 330 PM until 1100 PM EDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Thunderstorms will continue to intensify this afternoon and evening while moving eastward and posing a threat for large hail up to 1-2 inches in diameter. Scattered damaging winds with peak gusts to 60-70 mph should also occur with any thunderstorm clusters that can develop. The severe thunderstorm watch area is approximately along and 65 statute miles east and west of a line from 85 miles east northeast of London KY to 10 miles east southeast of Chattanooga TN. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). 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 238...WW 239... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27030. ...Gleason Read more

WW 0238 Status Updates
STATUS REPORT ON WW 238 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S MKL TO 20 ENE MKL TO 40 WSW BNA TO 35 SSE BWG TO 25 ENE BWG TO 55 W LOZ. ..HART..05/08/25 ATTN...WFO...LMK...PAH...OHX...MEG... STATUS REPORT FOR WS 238 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC001-009-053-057-169-171-207-090040- KY . KENTUCKY COUNTIES INCLUDED ARE ADAIR BARREN CLINTON CUMBERLAND METCALFE MONROE RUSSELL MSC003-009-057-081-115-117-139-141-145-090040- MS . MISSISSIPPI COUNTIES INCLUDED ARE ALCORN BENTON ITAWAMBA LEE PONTOTOC PRENTISS TIPPAH TISHOMINGO UNION TNC003-015-023-027-031-035-037-039-041-049-055-061-071-077-081- 087-099-101-109-111-117-119-133-135-137-141-149-159-165-169-175- 177-181-185-187-189-090040- TN Read more

WW 238 SEVERE TSTM KY TN 081725Z - 090100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 238 NWS Storm Prediction Center Norman OK 1225 PM CDT Thu May 8 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and Central Kentucky Western and Middle Tennessee * Effective this Thursday afternoon and evening from 1225 PM until 800 PM CDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph likely SUMMARY...Multiple supercells and thunderstorm clusters are expected to develop and spread generally eastward this afternoon and evening. Both large hail generally 1-2 inches in diameter and damaging winds will be a threat with this activity. Peak gusts could reach up to 60-70 mph if any thunderstorms can form. The severe thunderstorm watch area is approximately along and 65 statute miles north and south of a line from 20 miles north of Jackson TN to 40 miles north of Crossville TN. 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. && AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27030. ...Gleason Read more

WW 0241 Status Updates
STATUS REPORT ON WW 241 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 W DRT TO 30 SSW SAT. ..LYONS..05/08/25 ATTN...WFO...EWX...BRO...CRP... STATUS REPORT FOR WS 241 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS TXC061-127-163-215-247-283-323-427-479-505-507-090040- TX . TEXAS COUNTIES INCLUDED ARE CAMERON DIMMIT FRIO HIDALGO JIM HOGG LA SALLE MAVERICK STARR WEBB ZAPATA ZAVALA THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 241 SEVERE TSTM TX 081950Z - 090400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 241 NWS Storm Prediction Center Norman OK 250 PM CDT Thu May 8 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of South-Central into Deep South Texas * Effective this Thursday afternoon and evening from 250 PM until 1100 PM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2.5 inches in diameter possible Isolated significant damaging wind gusts to 75 mph possible A tornado or two possible SUMMARY...Supercell thunderstorms will pose a threat for mainly large hail up to 1.5-2.5 inches in diameter as they move slowly east-southeastward this afternoon and evening. Some threat for severe winds of 60-75 mph may also exist with any clusters that evolve. The severe thunderstorm watch area is approximately along and 65 statute miles north and south of a line from 55 miles west northwest of Del Rio TX to 45 miles east of Laredo TX. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). 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 238...WW 239...WW 240... AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Gleason Read more

The updated 2025 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continued to be below average. April runoff in the Missouri River Basin above Sioux City was 1.4 million acre-feet, 48% of average. The 2025 calendar year runoff forecast above Sioux City is 20.0 MAF, 78% of average. The runoff forecast is based on current soil moisture conditions, mountain snowpack, and long-term precipitation and temperature outlooks. Gavins Point Dam releases will continue to provide navigation flow support at 4,000 cfs below full service for the first half of the navigation season through June 30. The six mainstem power plants generated 727 million kWh of electricity in April. Typical energy generation in April is 695 million kWh. Forecast generation for 2025 is 8.6 billion kWh compared to the long-term average of 9.4 billion kWh. US Army Corps of Engineers Northwestern Division, May 8, 2025

No Mesoscale Discussions are in effect as of Thu May 8 22:15:05 UTC 2025.