Severe Storms

WW 488 SEVERE TSTM AR MO 300005Z - 300400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 488 NWS Storm Prediction Center Norman OK 705 PM CDT Sat Jun 29 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest Arkansas Southwest Missouri * Effective this Saturday evening from 705 PM until 1100 PM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A linear cluster of strong to severe thunderstorms is forecast to move into the Watch area this evening. The stronger thunderstorms will potentially yield a risk for 60-70 mph gusts capable of wind damage. Large hail (1 to 1.5 inches in diameter) may also occur with the stronger storms. The severe thunderstorm watch area is approximately along and 35 statute miles north and south of a line from 25 miles northwest of Fayetteville AR to 25 miles north northeast of Harrison AR. 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 482...WW 483...WW 484...WW 485...WW 486...WW 487... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 29020. ...Smith Read more

WW 0482 Status Updates
STATUS REPORT ON WW 482 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW HGR TO 30 SE IPT. ..WEINMAN..06/29/24 ATTN...WFO...PBZ...CLE...CTP... STATUS REPORT FOR WT 482 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC001-041-043-071-075-099-107-133-292340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ADAMS CUMBERLAND DAUPHIN LANCASTER LEBANON PERRY SCHUYLKILL YORK 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 0482 Status Updates
STATUS REPORT ON WW 482 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW HGR TO 30 SE IPT. ..WEINMAN..06/29/24 ATTN...WFO...PBZ...CLE...CTP... STATUS REPORT FOR WT 482 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC001-041-043-071-075-099-107-133-292340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ADAMS CUMBERLAND DAUPHIN LANCASTER LEBANON PERRY SCHUYLKILL YORK 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 0482 Status Updates
STATUS REPORT ON WW 482 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW HGR TO 30 SE IPT. ..WEINMAN..06/29/24 ATTN...WFO...PBZ...CLE...CTP... STATUS REPORT FOR WT 482 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC001-041-043-071-075-099-107-133-292340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ADAMS CUMBERLAND DAUPHIN LANCASTER LEBANON PERRY SCHUYLKILL YORK 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 0482 Status Updates
STATUS REPORT ON WW 482 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW HGR TO 30 SE IPT. ..WEINMAN..06/29/24 ATTN...WFO...PBZ...CLE...CTP... STATUS REPORT FOR WT 482 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS PAC001-041-043-071-075-099-107-133-292340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ADAMS CUMBERLAND DAUPHIN LANCASTER LEBANON PERRY SCHUYLKILL YORK 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 0486 Status Updates
STATUS REPORT ON WW 486 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 S EMP TO 20 NE CNU TO 40 WSW JEF TO 40 ENE COU. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1483 ..WEINMAN..06/29/24 ATTN...WFO...ICT...SGF...EAX...LSX...TSA... STATUS REPORT FOR WS 486 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC001-011-019-021-035-037-049-099-125-133-205-300040- KS . KANSAS COUNTIES INCLUDED ARE ALLEN BOURBON CHAUTAUQUA CHEROKEE COWLEY CRAWFORD ELK LABETTE MONTGOMERY NEOSHO WILSON MOC011-015-029-039-051-055-057-059-073-077-085-097-105-109-125- 131-141-145-151-161-167-169-185-217-300040- MO . MISSOURI COUNTIES INCLUDED ARE BARTON BENTON CAMDEN CEDAR COLE CRAWFORD DADE DALLAS GASCONADE GREENE HICKORY JASPER LACLEDE LAWRENCE MARIES MILLER MORGAN NEWTON 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

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 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

WW 486 SEVERE TSTM KS MO OK 292205Z - 300400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 486 NWS Storm Prediction Center Norman OK 505 PM CDT Sat Jun 29 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kansas Southwest into Central Missouri Northeast Oklahoma * Effective this Saturday afternoon and evening from 505 PM until 1100 PM CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Scattered thunderstorms are forecast to continue to develop late this afternoon into the evening across the northern part of the Watch area and gradually push east-southeast. Severe gusts 60-75 mph will be the primary hazard with the stronger storms, although large hail 1 to 1.5 inches in diameter will be possible with the more intense thunderstorms. The severe thunderstorm watch area is approximately along and 45 statute miles north and south of a line from 55 miles west of Bartlesville OK to 30 miles east northeast of Vichy MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). 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...WW 485... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 600. Mean storm motion vector 28015. ...Smith Read more

WW 0484 Status Updates
STATUS REPORT ON WW 484 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNE CXY TO 30 N EWR. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1481 ..WEINMAN..06/29/24 ATTN...WFO...PHI... STATUS REPORT FOR WS 484 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NJC019-041-300040- NJ . NEW JERSEY COUNTIES INCLUDED ARE HUNTERDON WARREN PAC011-017-029-045-077-091-095-101-300040- PA . PENNSYLVANIA COUNTIES INCLUDED ARE BERKS BUCKS CHESTER DELAWARE LEHIGH MONTGOMERY NORTHAMPTON 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..06/29/24 ATTN...WFO...LWX...RLX...PBZ... STATUS REPORT FOR WS 483 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MDC001-023-043-300040- MD . MARYLAND COUNTIES INCLUDED ARE ALLEGANY GARRETT WASHINGTON VAC043-069-171-187-840-300040- 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- 071-077-083-085-087-091-093-097-101-105-300040- Read more

WW 483 SEVERE TSTM MD VA WV 292020Z - 300200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 483 NWS Storm Prediction Center Norman OK 420 PM EDT Sat Jun 29 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western Maryland Northern Virginia Northern and Central West Virginia * Effective this Saturday afternoon and evening from 420 PM until 1000 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible A tornado or two possible SUMMARY...Scattered damaging winds up to 55-70 mph may occur as thunderstorms spread eastward this afternoon and evening. The severe thunderstorm watch area is approximately along and 30 statute miles north and south of a line from 80 miles west of Elkins WV to 20 miles east of Martinsburg WV. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). 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... 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 0485 Status Updates
STATUS REPORT ON WW 485 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 W LUK TO 10 NNE LUK TO 35 E DAY. ..WEINMAN..06/29/24 ATTN...WFO...ILN... STATUS REPORT FOR WS 485 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS INC029-115-137-155-300040- IN . INDIANA COUNTIES INCLUDED ARE DEARBORN OHIO RIPLEY SWITZERLAND KYC015-023-037-041-077-081-117-135-161-187-191-201-300040- KY . KENTUCKY COUNTIES INCLUDED ARE BOONE BRACKEN CAMPBELL CARROLL GALLATIN GRANT KENTON LEWIS MASON OWEN PENDLETON ROBERTSON OHC001-015-025-027-047-071-131-141-145-165-300040- OH . OHIO COUNTIES INCLUDED ARE 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

MD 1480 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR PARTS OF EASTERN IL AND IN
Mesoscale Discussion 1480 NWS Storm Prediction Center Norman OK 0510 PM CDT Sat Jun 29 2024 Areas affected...Parts of eastern IL and IN Concerning...Severe potential...Watch unlikely Valid 292210Z - 292345Z Probability of Watch Issuance...20 percent SUMMARY...An isolated severe wind/hail threat may develop and remain quasi-stationary across parts of Indiana and eastern Illinois. With an expected localized nature to the severe threat and low confidence in sustaining a longer-duration risk, severe thunderstorm watch issuance appears unlikely but trends will be monitored. DISCUSSION...In the wake of a small bowing cluster over southeast IN, residual outflow to its west/north converging with a leading cold front have supported isolated thunderstorm development across parts of IN into east-central/southeast IL. Much of central IN is void of cu in the wake of this cluster, suggesting that storms that can be sustained to the west and north will struggle to spread east. Deep-layer shear is stronger across northern IN, with MLCAPE greater back into IL, which will aid in an isolated severe hail/wind threat. However, low-level convergence along this leading boundary should wane for a time before a reinforcing cold front, currently over northern IL, shifts southeast later this evening. ..Grams/Smith.. 06/29/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LMK...IWX...IND...PAH...LOT...ILX...LSX... LAT...LON 39308596 38908603 38568702 38568818 38778893 39358889 39738891 40488769 41318640 41638586 41768547 41608511 41258513 40838595 40258698 39928740 39308596 Read more

MD 1479 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR PORTIONS OF THE TEXAS PANHANDLE INTO NORTHWESTERN OKLAHOMA
Mesoscale Discussion 1479 NWS Storm Prediction Center Norman OK 0444 PM CDT Sat Jun 29 2024 Areas affected...portions of the Texas Panhandle into northwestern Oklahoma Concerning...Severe potential...Watch possible Valid 292144Z - 292315Z Probability of Watch Issuance...40 percent SUMMARY...An increase in thunderstorm coverage and intensity is anticipated within the next few hours. The stronger storms may produce at least a few severe gusts, and an instance or two of large hail also cannot be ruled out. Convective trends are being monitored for the need of a Severe Thunderstorm Watch issuance. DISCUSSION...A cold front continues to sag southward across the southern Plains, with agitated CU and hints at convective initiation noted across northern portions of the TX Panhandle into north-central OK. South of the front, the boundary layer has deepened, with surface temperatures exceeding 100 F. The 30-40 F surface temperature/dewpoint spreads suggest that any storms that form will be high-based, with 0-3 km lapse rates exceeding 9 C/km. As such, despite moderate vertical wind shear ahead of the front, adequate buoyancy (i.e. 2000-4000 J/kg MLCAPE) and the steep low-level lapse rates will foster severe gust potential with the strongest downbursts via evaporative cooling beneath the high cloud bases. A couple of the initial multicellular updrafts may also briefly produce large hail, especially if any storm can become sustained immediately behind the cold front, where effective bulk shear is exceeding 40 kts. It is unclear how widespread the severe gust threat will become given limited vertical wind shear ahead of the surface front. As such, convective trends will continue to be monitored for locally higher severe gust potential and subsequent need for a Severe Thunderstorm Watch issuance. ..Squitieri/Smith.. 06/29/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OUN...AMA... LAT...LON 35440233 36160042 36249877 35969769 35619754 35309851 35180007 35030156 35000198 35110230 35440233 Read more

WW 0485 Status Updates
STATUS REPORT ON WW 485 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SE IND TO 30 NW LUK TO 20 NNW DAY. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1478 ..WEINMAN..06/29/24 ATTN...WFO...ILN... STATUS REPORT FOR WS 485 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS INC029-047-115-137-155-292340- IN . INDIANA COUNTIES INCLUDED ARE DEARBORN FRANKLIN OHIO RIPLEY SWITZERLAND KYC015-023-037-041-077-081-117-135-161-187-191-201-292340- KY . KENTUCKY COUNTIES INCLUDED ARE BOONE BRACKEN CAMPBELL CARROLL GALLATIN GRANT KENTON LEWIS MASON OWEN PENDLETON ROBERTSON OHC001-015-017-025-027-047-057-061-071-113-131-135-141-145-165- 292340- Read more

MD 1478 CONCERNING SEVERE THUNDERSTORM WATCH 485... FOR SOUTHEAST IN...SOUTHWEST IN...FAR NORTHERN KY
Mesoscale Discussion 1478 NWS Storm Prediction Center Norman OK 0430 PM CDT Sat Jun 29 2024 Areas affected...southeast IN...southwest IN...far northern KY Concerning...Severe Thunderstorm Watch 485... Valid 292130Z - 292300Z The severe weather threat for Severe Thunderstorm Watch 485 continues. SUMMARY...A threat for damaging wind gusts from 55-70 mph will remain probable with a small bowing cluster moving east-southeast towards the central Ohio Valley. DISCUSSION...A small bowing cluster was ongoing between the I-70 and I-74 corridors in the eastern IN. The Indianapolis VWP in the wake of this cluster continues to sample a belt of 35-50 kt mid-level westerlies which will aid in sustaining convective organization as this cluster likely tracks east-southeastward over the next few hours. Incipient Cb development is also occurring farther south closer to the OH River in southeast IN. It is plausible this may merge into the cluster across the IN/OH/KY border area and yield an overall southeast shift to convective development. This should spread across the I-75/I-71 corridors in southwest OH to northern KY. The greatest threat for damaging winds should be focused near the apex of the small bow. ..Grams.. 06/29/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...RLX...JKL...ILN... LAT...LON 39868516 39618397 39318301 38928274 38538297 38408316 38418350 38778488 38978533 39868516 Read more