Severe Storms

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Sat Jun 29 2024 Valid 300100Z - 301200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH LATE EVENING FROM NORTHERN OK TO SOUTHERN MO...AND FROM WV INTO SOUTHEAST PA... ...SUMMARY... Isolated damaging gusts and large hail will be possible for a few more hours into early tonight from northern Oklahoma into southern Missouri, and across parts of the central Appalachians. ...01z... Main changes in this update will be to extend the SLGT risk westward across northern OK to reflect wind-damage potential with storms along a surface wind shift through late evening, and to remove most of the SLGT in the WV/OH/PA/NY area where diurnal stabilization and prior storms should limit the threat overnight. The threat appears lower overnight across the southern High Plains tonight as the low levels slowly stabilize in an upslope regime. Storm clusters are still expected, though the hail/wind threat should remain marginal. ..Thompson.. 06/30/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Sat Jun 29 2024 Valid 300100Z - 301200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH LATE EVENING FROM NORTHERN OK TO SOUTHERN MO...AND FROM WV INTO SOUTHEAST PA... ...SUMMARY... Isolated damaging gusts and large hail will be possible for a few more hours into early tonight from northern Oklahoma into southern Missouri, and across parts of the central Appalachians. ...01z... Main changes in this update will be to extend the SLGT risk westward across northern OK to reflect wind-damage potential with storms along a surface wind shift through late evening, and to remove most of the SLGT in the WV/OH/PA/NY area where diurnal stabilization and prior storms should limit the threat overnight. The threat appears lower overnight across the southern High Plains tonight as the low levels slowly stabilize in an upslope regime. Storm clusters are still expected, though the hail/wind threat should remain marginal. ..Thompson.. 06/30/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Sat Jun 29 2024 Valid 300100Z - 301200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH LATE EVENING FROM NORTHERN OK TO SOUTHERN MO...AND FROM WV INTO SOUTHEAST PA... ...SUMMARY... Isolated damaging gusts and large hail will be possible for a few more hours into early tonight from northern Oklahoma into southern Missouri, and across parts of the central Appalachians. ...01z... Main changes in this update will be to extend the SLGT risk westward across northern OK to reflect wind-damage potential with storms along a surface wind shift through late evening, and to remove most of the SLGT in the WV/OH/PA/NY area where diurnal stabilization and prior storms should limit the threat overnight. The threat appears lower overnight across the southern High Plains tonight as the low levels slowly stabilize in an upslope regime. Storm clusters are still expected, though the hail/wind threat should remain marginal. ..Thompson.. 06/30/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Sat Jun 29 2024 Valid 300100Z - 301200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH LATE EVENING FROM NORTHERN OK TO SOUTHERN MO...AND FROM WV INTO SOUTHEAST PA... ...SUMMARY... Isolated damaging gusts and large hail will be possible for a few more hours into early tonight from northern Oklahoma into southern Missouri, and across parts of the central Appalachians. ...01z... Main changes in this update will be to extend the SLGT risk westward across northern OK to reflect wind-damage potential with storms along a surface wind shift through late evening, and to remove most of the SLGT in the WV/OH/PA/NY area where diurnal stabilization and prior storms should limit the threat overnight. The threat appears lower overnight across the southern High Plains tonight as the low levels slowly stabilize in an upslope regime. Storm clusters are still expected, though the hail/wind threat should remain marginal. ..Thompson.. 06/30/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Sat Jun 29 2024 Valid 300100Z - 301200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH LATE EVENING FROM NORTHERN OK TO SOUTHERN MO...AND FROM WV INTO SOUTHEAST PA... ...SUMMARY... Isolated damaging gusts and large hail will be possible for a few more hours into early tonight from northern Oklahoma into southern Missouri, and across parts of the central Appalachians. ...01z... Main changes in this update will be to extend the SLGT risk westward across northern OK to reflect wind-damage potential with storms along a surface wind shift through late evening, and to remove most of the SLGT in the WV/OH/PA/NY area where diurnal stabilization and prior storms should limit the threat overnight. The threat appears lower overnight across the southern High Plains tonight as the low levels slowly stabilize in an upslope regime. Storm clusters are still expected, though the hail/wind threat should remain marginal. ..Thompson.. 06/30/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Sat Jun 29 2024 Valid 300100Z - 301200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH LATE EVENING FROM NORTHERN OK TO SOUTHERN MO...AND FROM WV INTO SOUTHEAST PA... ...SUMMARY... Isolated damaging gusts and large hail will be possible for a few more hours into early tonight from northern Oklahoma into southern Missouri, and across parts of the central Appalachians. ...01z... Main changes in this update will be to extend the SLGT risk westward across northern OK to reflect wind-damage potential with storms along a surface wind shift through late evening, and to remove most of the SLGT in the WV/OH/PA/NY area where diurnal stabilization and prior storms should limit the threat overnight. The threat appears lower overnight across the southern High Plains tonight as the low levels slowly stabilize in an upslope regime. Storm clusters are still expected, though the hail/wind threat should remain marginal. ..Thompson.. 06/30/2024 Read more

MD 1482 CONCERNING SEVERE THUNDERSTORM WATCH 483... FOR NORTHERN WV AND THE WESTERN MD PANHANDLE
Mesoscale Discussion 1482 NWS Storm Prediction Center Norman OK 0630 PM CDT Sat Jun 29 2024 Areas affected...northern WV and the western MD Panhandle Concerning...Severe Thunderstorm Watch 483... Valid 292330Z - 300100Z The severe weather threat for Severe Thunderstorm Watch 483 continues. SUMMARY...A marginal and fairly isolated severe threat may persist through about dusk. Additional severe thunderstorm watch issuance beyond the 02Z expiration is unlikely. DISCUSSION...A lone robust updraft exists within WW 483 across north WV. This specific cell appeared to be a left-split amid a nearly unidirectional wind profile inferred between RLX/PBZ VWPs. This may have briefly produced marginally severe hail per MESH signatures, but appears to have peaked. In its wake, a stronger storm cluster over southwest OH has likewise appeared to have peaked in convective intensity. With weak low-level flow persisting to the south of both convective areas, the overall severe threat should continue on a diminishing trend, although storms should persist beyond dusk. ..Grams.. 06/29/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LWX...PBZ...RLX... LAT...LON 39358054 39487983 39647828 39627782 39587754 39317753 38757984 38698084 38868125 39358054 Read more

MD 1483 CONCERNING SEVERE THUNDERSTORM WATCH 486... FOR PORTIONS OF EXTREME SOUTHEAST KANSAS INTO FAR NORTHEAST OKLAHOMA...SOUTHWESTERN MISSOURI...AND EXTREME NORTHWESTERN ARKANSAS
Mesoscale Discussion 1483 NWS Storm Prediction Center Norman OK 0636 PM CDT Sat Jun 29 2024 Areas affected...portions of extreme southeast Kansas into far northeast Oklahoma...southwestern Missouri...and extreme northwestern Arkansas Concerning...Severe Thunderstorm Watch 486... Valid 292336Z - 300100Z The severe weather threat for Severe Thunderstorm Watch 486 continues. SUMMARY...The severe threat continues across Severe Thunderstorm Watch 486. Severe wind and hail remain the primary threats. The best chance for severe wind/hail in the near-term exists with a cluster of storms along the KS/OK border DISCUSSION...Several thunderstorm clusters have developed along the cold front, with a mature, dominant cluster progressing across southeast KS toward OK. This cluster has a history of large hail and severe gusts, and these storms continue to track southward into a strongly unstable airmass. As such, additional instances of severe wind and hail should continue with this cluster over the next several hours. These storms may progress just south of the WW 486 bounds, potentially necessitating the need of an additional downstream Severe Thunderstorm Watch issuance. There is also a slight chance for storms to initiate along a stationary boundary across extreme northern Arkansas. Should this occur, multicells may result, posing a threat of severe wind and hail. ..Squitieri.. 06/29/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LZK...SGF...TSA...ICT... LAT...LON 36129340 35979454 36139561 36539611 36829615 36959601 37249515 37459431 37409285 36809240 36359264 36129340 Read more

WW 0486 Status Updates
STATUS REPORT ON WW 486 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNW PNC TO 35 NW BVO TO 35 WNW STL. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1483 ..WEINMAN..06/30/24 ATTN...WFO...ICT...SGF...EAX...LSX...TSA... STATUS REPORT FOR WS 486 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC019-021-037-099-125-300140- KS . KANSAS COUNTIES INCLUDED ARE CHAUTAUQUA CHEROKEE CRAWFORD LABETTE MONTGOMERY MOC011-015-029-039-051-055-057-059-073-077-085-097-105-109-125- 131-141-145-151-161-167-169-185-217-300140- MO . MISSOURI COUNTIES INCLUDED ARE BARTON BENTON CAMDEN CEDAR COLE CRAWFORD DADE DALLAS GASCONADE GREENE HICKORY JASPER LACLEDE LAWRENCE MARIES MILLER MORGAN NEWTON OSAGE PHELPS POLK PULASKI ST. CLAIR VERNON Read more

WW 0486 Status Updates
STATUS REPORT ON WW 486 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNW PNC TO 35 NW BVO TO 35 WNW STL. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1483 ..WEINMAN..06/30/24 ATTN...WFO...ICT...SGF...EAX...LSX...TSA... STATUS REPORT FOR WS 486 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC019-021-037-099-125-300140- KS . KANSAS COUNTIES INCLUDED ARE CHAUTAUQUA CHEROKEE CRAWFORD LABETTE MONTGOMERY MOC011-015-029-039-051-055-057-059-073-077-085-097-105-109-125- 131-141-145-151-161-167-169-185-217-300140- MO . MISSOURI COUNTIES INCLUDED ARE BARTON BENTON CAMDEN CEDAR COLE CRAWFORD DADE DALLAS GASCONADE GREENE HICKORY JASPER LACLEDE LAWRENCE MARIES MILLER MORGAN NEWTON OSAGE PHELPS POLK PULASKI ST. CLAIR VERNON Read more

WW 0487 Status Updates
STATUS REPORT ON WW 487 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1484 ..WEINMAN..06/30/24 ATTN...WFO...OUN...AMA... STATUS REPORT FOR WS 487 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS OKC009-011-039-043-045-047-053-071-073-083-093-103-119-129- 300140- OK . OKLAHOMA COUNTIES INCLUDED ARE BECKHAM BLAINE CUSTER DEWEY ELLIS GARFIELD GRANT KAY KINGFISHER LOGAN MAJOR NOBLE PAYNE ROGER MILLS TXC011-065-179-195-211-233-341-375-381-393-483-300140- TX . TEXAS COUNTIES INCLUDED ARE ARMSTRONG CARSON GRAY HANSFORD HEMPHILL HUTCHINSON MOORE POTTER RANDALL ROBERTS WHEELER Read more

WW 0485 Status Updates
STATUS REPORT ON WW 485 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ENE LEX TO 30 W UNI. ..WEINMAN..06/30/24 ATTN...WFO...ILN... STATUS REPORT FOR WS 485 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC135-300140- KY . KENTUCKY COUNTIES INCLUDED ARE LEWIS OHC145-300140- OH . OHIO COUNTIES INCLUDED ARE SCIOTO 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 0485 Status Updates
STATUS REPORT ON WW 485 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ENE LEX TO 30 W UNI. ..WEINMAN..06/30/24 ATTN...WFO...ILN... STATUS REPORT FOR WS 485 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC135-300140- KY . KENTUCKY COUNTIES INCLUDED ARE LEWIS OHC145-300140- OH . OHIO COUNTIES INCLUDED ARE SCIOTO 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 0485 Status Updates
STATUS REPORT ON WW 485 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ENE LEX TO 30 W UNI. ..WEINMAN..06/30/24 ATTN...WFO...ILN... STATUS REPORT FOR WS 485 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC135-300140- KY . KENTUCKY COUNTIES INCLUDED ARE LEWIS OHC145-300140- OH . OHIO COUNTIES INCLUDED ARE SCIOTO 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 0485 Status Updates
STATUS REPORT ON WW 485 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ENE LEX TO 30 W UNI. ..WEINMAN..06/30/24 ATTN...WFO...ILN... STATUS REPORT FOR WS 485 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KYC135-300140- KY . KENTUCKY COUNTIES INCLUDED ARE LEWIS OHC145-300140- OH . OHIO COUNTIES INCLUDED ARE SCIOTO 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 485 SEVERE TSTM IN KY OH 292105Z - 300400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 485 NWS Storm Prediction Center Norman OK 505 PM EDT Sat Jun 29 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Indiana Northern Kentucky Southwest Ohio * Effective this Saturday afternoon from 505 PM until Midnight EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible SUMMARY...A bowing line segment will continue to shift east/southeast through this evening. The main risk with this activity will be severe gusts with localized wind damage expected. The severe threat should wane with southward extent toward mid to late evening. The severe thunderstorm watch area is approximately along and 50 statute miles east and west of a line from 25 miles west of Dayton OH to 40 miles southeast of Cincinnati OH. 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. && OTHER WATCH INFORMATION...CONTINUE...WW 482...WW 483...WW 484... 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. ...Leitman Read more

WW 0484 Status Updates
STATUS REPORT ON WW 484 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE CXY TO 15 WNW EWR. ..WEINMAN..06/30/24 ATTN...WFO...PHI... STATUS REPORT FOR WS 484 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NJC019-300140- NJ . NEW JERSEY COUNTIES INCLUDED ARE HUNTERDON PAC017-029-045-091-101-300140- PA . PENNSYLVANIA COUNTIES INCLUDED ARE BUCKS CHESTER DELAWARE MONTGOMERY PHILADELPHIA 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 484 SEVERE TSTM NJ PA 292055Z - 300300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 484 NWS Storm Prediction Center Norman OK 455 PM EDT Sat Jun 29 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western New Jersey Eastern Pennsylvania * Effective this Saturday afternoon and evening from 455 PM until 1100 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...A line of thunderstorms moving eastward should pose some risk for severe/damaging winds late this afternoon into the evening, perhaps up to 60-70 mph. The severe thunderstorm watch area is approximately along and 40 statute miles east and west of a line from 35 miles north of Allentown PA to 30 miles west southwest of Philadelphia PA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU4). 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 482...WW 483... 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. ...Gleason Read more

WW 0483 Status Updates
STATUS REPORT ON WW 483 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1482 ..WEINMAN..06/30/24 ATTN...WFO...LWX...RLX...PBZ... STATUS REPORT FOR WS 483 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MDC001-023-043-300140- MD . MARYLAND COUNTIES INCLUDED ARE ALLEGANY GARRETT WASHINGTON VAC043-069-171-187-840-300140- VA . VIRGINIA COUNTIES INCLUDED ARE CLARKE FREDERICK SHENANDOAH WARREN VIRGINIA INDEPENDENT CITIES INCLUDED ARE WINCHESTER WVC001-003-007-013-017-021-023-027-031-033-035-037-041-057-065- 071-077-083-085-087-091-093-097-101-105-300140- Read more

MD 1481 CONCERNING SEVERE THUNDERSTORM WATCH 484... FOR SOUTHEAST PA...NJ...FAR NORTHERN MD/DE
Mesoscale Discussion 1481 NWS Storm Prediction Center Norman OK 0538 PM CDT Sat Jun 29 2024 Areas affected...Southeast PA...NJ...far northern MD/DE Concerning...Severe Thunderstorm Watch 484... Valid 292238Z - 300015Z The severe weather threat for Severe Thunderstorm Watch 484 continues. SUMMARY...Strong to localized severe wind gusts from 50-65 mph will remain possible, mainly focused across southeast Pennsylvania and adjacent states. How far downstream this extends east of the Delaware Valley is uncertain, with forecast expectation of weakening farther east into New Jersey. DISCUSSION...A surging accelerated portion of a short-line segment has bowed across a part of east-central to southeast Pennsylvania. Its current eastward track will result in movement into a more weakly unstable air mass. But given its organization, a damaging wind threat will probably spread east of WW 484 into NJ before diminishing. Meanwhile, supercell structure exists within the tail-end robust updraft in south-central PA. With a plume of low 90s surface temperatures emanating north over central MD, it is plausible the lagging portion of the convective line may undergo a similar acceleration and bowing surge. This could potentially impact parts of far northern MD/DE, adjacent to WWs 482/484. ..Grams.. 06/29/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OKX...PHI...CTP...LWX... LAT...LON 40767627 40817526 40707448 40637413 40057407 39677546 39507641 39647702 40067726 40767627 Read more