Severe Storms

MD 1000 CONCERNING SEVERE THUNDERSTORM WATCH 321... FOR PARTS OF CENTRAL NC
Mesoscale Discussion 1000 NWS Storm Prediction Center Norman OK 0905 PM CDT Sun May 26 2024 Areas affected...Parts of central NC Concerning...Severe Thunderstorm Watch 321... Valid 270205Z - 270330Z The severe weather threat for Severe Thunderstorm Watch 321 continues. SUMMARY...The damaging-wind threat will continue in the short term, before an anticipated weakening trend late tonight. DISCUSSION...Some intensification of ongoing convection has recently been noted across central NC, with an east-southeastward moving storm cluster now overtaking a strong discrete cell that had developed ahead of the line. Some damaging-wind threat may persist in the short term ahead of this cluster, as it moves into a region where rather strong heating/mixing occurred earlier today. Only modest deep-layer shear and weak low-level flow were noted on the 00Z GSO sounding, though some increase in low-level flow has recently been noted on the KRAX VWP, and stronger midlevel flow to the southwest may begin impinging upon the ongoing storm cluster. Gradually increasing downstream MLCINH should eventually result in a weakening trend later tonight, such as what has already occurred across southern VA. However, at least an isolated damaging-wind threat may persist to the eastern edge of WW 321. ..Dean.. 05/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...RAH...RNK...GSP... LAT...LON 35668033 36167947 36307905 36267833 35967798 35577804 35187857 35117905 35187967 35297999 35428022 35668033 Read more

WW 0322 Status Updates
STATUS REPORT ON WW 322 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE AND TO 25 E CLT. ..LYONS..05/27/24 ATTN...WFO...GSP...CAE... STATUS REPORT FOR WS 322 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NCC179-270440- NC . NORTH CAROLINA COUNTIES INCLUDED ARE UNION SCC057-270440- SC . SOUTH CAROLINA COUNTIES INCLUDED ARE LANCASTER 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 0322 Status Updates
STATUS REPORT ON WW 322 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE AND TO 25 E CLT. ..LYONS..05/27/24 ATTN...WFO...GSP...CAE... STATUS REPORT FOR WS 322 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NCC179-270440- NC . NORTH CAROLINA COUNTIES INCLUDED ARE UNION SCC057-270440- SC . SOUTH CAROLINA COUNTIES INCLUDED ARE LANCASTER 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 0322 Status Updates
STATUS REPORT ON WW 322 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE AND TO 25 E CLT. ..LYONS..05/27/24 ATTN...WFO...GSP...CAE... STATUS REPORT FOR WS 322 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NCC179-270440- NC . NORTH CAROLINA COUNTIES INCLUDED ARE UNION SCC057-270440- SC . SOUTH CAROLINA COUNTIES INCLUDED ARE LANCASTER 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 0322 Status Updates
STATUS REPORT ON WW 322 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE AND TO 25 E CLT. ..LYONS..05/27/24 ATTN...WFO...GSP...CAE... STATUS REPORT FOR WS 322 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NCC179-270440- NC . NORTH CAROLINA COUNTIES INCLUDED ARE UNION SCC057-270440- SC . SOUTH CAROLINA COUNTIES INCLUDED ARE LANCASTER 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 0322 Status Updates
STATUS REPORT ON WW 322 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE AND TO 25 E CLT. ..LYONS..05/27/24 ATTN...WFO...GSP...CAE... STATUS REPORT FOR WS 322 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NCC179-270440- NC . NORTH CAROLINA COUNTIES INCLUDED ARE UNION SCC057-270440- SC . SOUTH CAROLINA COUNTIES INCLUDED ARE LANCASTER 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 322 SEVERE TSTM NC SC 262240Z - 270300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 322 NWS Storm Prediction Center Norman OK 640 PM EDT Sun May 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western North Carolina and Piedmont Upstate South Carolina * Effective this Sunday evening from 640 PM until 1100 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Widely scattered thunderstorms are forecast to pose a strong to severe thunderstorm risk this evening. Strong mid-level flow will support supercell development with the stronger updrafts. Large hail and severe gusts (55-70 mph) are the primary hazards with the stronger storms. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 20 miles northwest of Anderson SC to 25 miles southeast of Charlotte NC. 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 316...WW 317...WW 318...WW 319...WW 320...WW 321... 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 500. Mean storm motion vector 25030. ...Smith Read more

WW 0325 Status Updates
STATUS REPORT ON WW 325 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE RIC TO 5 W MRB TO 30 NE LBE. ..LYONS..05/27/24 ATTN...WFO...LWX...CTP...AKQ... STATUS REPORT FOR WS 325 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-270340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC017-021-031-033-043-270340- MD . MARYLAND COUNTIES INCLUDED ARE CHARLES FREDERICK MONTGOMERY PRINCE GEORGES WASHINGTON PAC009-013-021-055-057-061-270340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE BEDFORD BLAIR CAMBRIA FRANKLIN FULTON HUNTINGDON Read more

WW 0325 Status Updates
STATUS REPORT ON WW 325 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE RIC TO 5 W MRB TO 30 NE LBE. ..LYONS..05/27/24 ATTN...WFO...LWX...CTP...AKQ... STATUS REPORT FOR WS 325 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-270340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC017-021-031-033-043-270340- MD . MARYLAND COUNTIES INCLUDED ARE CHARLES FREDERICK MONTGOMERY PRINCE GEORGES WASHINGTON PAC009-013-021-055-057-061-270340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE BEDFORD BLAIR CAMBRIA FRANKLIN FULTON HUNTINGDON Read more

WW 0325 Status Updates
STATUS REPORT ON WW 325 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE RIC TO 5 W MRB TO 30 NE LBE. ..LYONS..05/27/24 ATTN...WFO...LWX...CTP...AKQ... STATUS REPORT FOR WS 325 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-270340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC017-021-031-033-043-270340- MD . MARYLAND COUNTIES INCLUDED ARE CHARLES FREDERICK MONTGOMERY PRINCE GEORGES WASHINGTON PAC009-013-021-055-057-061-270340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE BEDFORD BLAIR CAMBRIA FRANKLIN FULTON HUNTINGDON Read more

WW 0325 Status Updates
STATUS REPORT ON WW 325 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE RIC TO 5 W MRB TO 30 NE LBE. ..LYONS..05/27/24 ATTN...WFO...LWX...CTP...AKQ... STATUS REPORT FOR WS 325 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-270340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC017-021-031-033-043-270340- MD . MARYLAND COUNTIES INCLUDED ARE CHARLES FREDERICK MONTGOMERY PRINCE GEORGES WASHINGTON PAC009-013-021-055-057-061-270340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE BEDFORD BLAIR CAMBRIA FRANKLIN FULTON HUNTINGDON Read more

WW 0325 Status Updates
STATUS REPORT ON WW 325 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNE RIC TO 5 W MRB TO 30 NE LBE. ..LYONS..05/27/24 ATTN...WFO...LWX...CTP...AKQ... STATUS REPORT FOR WS 325 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS DCC001-270340- DC . DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE DISTRICT OF COLUMBIA MDC017-021-031-033-043-270340- MD . MARYLAND COUNTIES INCLUDED ARE CHARLES FREDERICK MONTGOMERY PRINCE GEORGES WASHINGTON PAC009-013-021-055-057-061-270340- PA . PENNSYLVANIA COUNTIES INCLUDED ARE BEDFORD BLAIR CAMBRIA FRANKLIN FULTON HUNTINGDON Read more

WW 325 SEVERE TSTM DC MD PA VA WV CW 270045Z - 270400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 325 NWS Storm Prediction Center Norman OK 845 PM EDT Sun May 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of District Of Columbia Western and Central Maryland South-Central Pennsylvania Central and Northern Virginia Eastern West Virginia Panhandle Coastal Waters * Effective this Sunday night from 845 PM until Midnight EDT. * Primary threats include... Scattered damaging wind gusts to 65 mph possible SUMMARY...A mature squall line will continue to move northeast across the Watch area during the mid to late evening. The stronger embedded cells within the line and bowing segments will be capable of strong to severe gusts (55-65 mph) and wind damage. The severe thunderstorm watch area is approximately along and 40 statute miles east and west of a line from 25 miles north northwest of Altoona PA to 20 miles south of Richmond VA. 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 317...WW 318...WW 319...WW 320...WW 321...WW 322...WW 323...WW 324... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 23035. ...Smith Read more

MD 0999 CONCERNING SEVERE POTENTIAL...WATCH LIKELY FOR FAR SOUTHWEST OH...CENTRAL/EASTERN KY
Mesoscale Discussion 0999 NWS Storm Prediction Center Norman OK 0859 PM CDT Sun May 26 2024 Areas affected...Far Southwest OH...Central/Eastern KY Concerning...Severe potential...Watch likely Valid 270159Z - 270300Z Probability of Watch Issuance...80 percent SUMMARY...The threat for severe gust and QLCS circulations will likely continue into far southwest Ohio and central/eastern Kentucky, and a Tornado Watch will likely be needed across the region to address this potential. DISCUSSION...Well-organized convective line continues to move eastward across southwest IN, southern IL, and far southwest KY at around 50 to 55 kt. This storm motion takes the line to the edge of Tornado Watch 324 at 0330Z to 0400Z. The airmass over the region is only weakly buoyant right now, but increasing low to mid-level moisture ahead of the line should promote the development of modest buoyancy. This buoyancy will be aided by strong low-level shear. Recent 00Z BNA sounding sampled strong low-level flow veering with height, with 0-1 km storm-relative helicity over 330 m2/s2. Recent JKL VAD sampled this increasing low-level flow as well, with 0-1 storm-relative helicity over 400 m2/s2. Given the favorable kinematics and organized character to the ongoing line, the expectation is that the threat for severe gusts and QLCS tornado circulations will continue into the region. A Tornado Watch will likely be needed across the region to address this potential. ..Mosier/Smith.. 05/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...RLX...MRX...JKL...ILN...LMK... LAT...LON 38838527 39338447 39038327 38288260 36768306 36638453 37188512 38838527 Read more

MD 0998 CONCERNING TORNADO WATCH 324... FOR PORTIONS OF WESTERN KY AND FAR SOUTHERN IN
Mesoscale Discussion 0998 NWS Storm Prediction Center Norman OK 0836 PM CDT Sun May 26 2024 Areas affected...portions of western KY and far southern IN Concerning...Tornado Watch 324... Valid 270136Z - 270300Z The severe weather threat for Tornado Watch 324 continues. SUMMARY...Isolated supercells are in a favorable environment for strong to intense tornadoes. DISCUSSION...As of 0130 UTC, regional radar analysis showed mature supercells ongoing over Caldwell and Davies county KY. These storms have exhibited strong low-level rotation and have a history of producing tornadoes. The environment ahead of these storms remains very favorable for strong to intense tornadoes with large buoyancy, ESRH greater than 400 m2/s2 and STP values of 5. Strong to intense tornado potential will remain high as these storms approach a modified baroclinic boundary left over from previous convection. Large to very large hail and damaging winds are also possible with these intense storms. ..Lyons.. 05/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LMK...PAH... LAT...LON 37988644 38048661 38068683 37948736 37708765 37288807 37108813 36958797 36928771 36948710 36998650 37058633 37228622 37858627 37988644 Read more

MD 0997 CONCERNING TORNADO WATCH 320...323...324... FOR SOUTHERN IL...WESTERN KY...SOUTHEAST MO/MO BOOTHEEL...FAR WESTERN TN
Mesoscale Discussion 0997 NWS Storm Prediction Center Norman OK 0821 PM CDT Sun May 26 2024 Areas affected...Southern IL...Western KY...Southeast MO/MO Bootheel...Far Western TN Concerning...Tornado Watch 320...323...324... Valid 270121Z - 270245Z The severe weather threat for Tornado Watch 320, 323, 324 continues. SUMMARY...Threat for significant-severe gusts is increasing within the ongoing convective line from southeast Illinois and southern Indiana into western Kentucky and far southeast Missouri/Missouri Bootheel. DISCUSSION...Well-organized convective line continues to push quickly southeastward across southern IL and southeast MO/MO Bootheel. Recent storm motion with this line was estimated around 50 kt, which would bring the line into central KY and southern IN between 0230 and 0300Z. Several severe gusts have been noted within the line, including recently at KSLO at 56 kt. This northeast-to-southwest orientated line is about to intersect a west-to-east line of supercells across far southern IL into far southwest KY. This interaction is expected to result in intensification of the line, with some potential for this area to to surge eastward, becoming the apex of the bow. Significant-severe gusts (i.e. 75-90 mph) are likely within this vicinity over the next few hours. Northern portion of the bow remains well-organized, with some interaction with the newly strengthening warm-air advection cells across southern IN. Significant-severe gusts appear possible here as well. An embedded supercell persists at the southern end of the line, with another supercell in its wake to the west over Carter County MO. Both of these cells will continue to pose a risk for all severe hazards for the next hour or two. ..Mosier.. 05/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LMK...OHX...IND...PAH...ILX...MEG...LSX...LZK... LAT...LON 39328827 39058655 37388660 36218822 36219039 36489102 36959086 37838950 38408885 39328827 Read more

WW 0326 Status Updates
STATUS FOR WATCH 0326 HAS NOT BEEN ISSUED YET Read more

MD 0996 CONCERNING SEVERE THUNDERSTORM WATCH 317...321...322... FOR CAROLINA PIEDMONT VICINITY
Mesoscale Discussion 0996 NWS Storm Prediction Center Norman OK 0727 PM CDT Sun May 26 2024 Areas affected...Carolina Piedmont vicinity Concerning...Severe Thunderstorm Watch 317...321...322... Valid 270027Z - 270200Z The severe weather threat for Severe Thunderstorm Watch 317, 321, 322 continues. SUMMARY...Some threat for damaging wind and hail will spread east-southeast this evening. An isolated severe threat may eventually spread east of the ongoing watches. DISCUSSION...A couple of supercells are ongoing this evening across parts of upstate SC, with golfball hail recently observed in the Greenville-Spartanburg area. Some interaction between that supercell and a left-moving cell to its west will be possible in the short term, which could lead to a localized increase in damaging wind potential. Discrete supercell activity is eventually expected to weaken later this evening with the onset of nocturnal cooling/stabilization, but some threat for hail and isolated damaging wind will persist until the ongoing cells weaken. Farther north, some recent intensification has been noted with a storm cluster moving southeastward across western NC, to the northwest of Charlotte. The KCLT VWP depicts relatively weak low-level flow, but rather strong deep-layer flow/shear, which in combination with moderate buoyancy will support continued storm organization in the short term this evening. While MLCINH will gradually increase with time, a threat for damaging wind and perhaps some hail will continue to spread east-southeastward. Depending on the longevity of ongoing convection, local watch extension or downstream watch issuance may eventually need to be considered. ..Dean/Smith.. 05/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...RAH...RNK...CAE...GSP... LAT...LON 34698269 35068292 36118143 36478046 36527977 36077959 35387984 34548094 34278169 34168226 34208262 34698269 Read more

MD 0995 CONCERNING TORNADO WATCH 320... FOR SOUTHERN IL...SOUTHEAST MO
Mesoscale Discussion 0995 NWS Storm Prediction Center Norman OK 0701 PM CDT Sun May 26 2024 Areas affected...Southern IL...Southeast MO Concerning...Tornado Watch 320... Valid 270001Z - 270130Z The severe weather threat for Tornado Watch 320 continues. SUMMARY...Well-organized convective line continues to surge southeastward from southern Illinois into southern Missouri. A corridor of significant wind gusts (i.e. 75+ mph) appears probable across south-central into southeast Illinois. DISCUSSION...Ongoing convective line has shown an increase in forward propagation over the last hour or so, particularly with the portion of the line that moved through the LSX area. Velocity data from KLSX continues to show strong outbound velocities within the portion of the line moving through west-central IL. Significant severe gusts (i.e. greater than 75 mph) are possible within this portion of the line as it moves through more of southern IL. Southern portion of the line has allow surged forward, though not with quite the same speed as farther north. However, the southernmost cell within the line now has a more outflow-dominant signature, and cell interactions with the ongoing supercells across south-central MO are probable. Strong gusts are expected to become more prominent within this portion of the line once these interactions are complete. ..Mosier.. 05/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PAH...ILX...LSX...SGF... LAT...LON 39218918 39038785 38018834 37449100 37729124 38089063 39218918 Read more

WW 0323 Status Updates
STATUS REPORT ON WW 323 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S MTO TO 15 SW DNV. ..LYONS..05/27/24 ATTN...WFO...ILX...IND... STATUS REPORT FOR WS 323 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC023-035-045-270240- IL . ILLINOIS COUNTIES INCLUDED ARE CLARK CUMBERLAND EDGAR INC005-013-021-055-071-079-081-093-105-109-119-153-167-270240- IN . INDIANA COUNTIES INCLUDED ARE BARTHOLOMEW BROWN CLAY GREENE JACKSON JENNINGS JOHNSON LAWRENCE MONROE MORGAN OWEN SULLIVAN VIGO 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