Severe Storms

MD 0476 CONCERNING TORNADO WATCH 122...123... FOR PORTIONS OF EASTERN OH...WESTERN PA...AND NORTHERN WV
Mesoscale Discussion 0476 NWS Storm Prediction Center Norman OK 0523 PM CDT Wed Apr 17 2024 Areas affected...portions of eastern OH...western PA...and northern WV Concerning...Tornado Watch 122...123... Valid 172223Z - 180000Z The severe weather threat for Tornado Watch 122, 123 continues. SUMMARY...The severe risk continues across WW122 and WW123. Damaging winds, hail and a couple of tornadoes are possible. A local extension has been coordinated on the eastern edge of WW123. DISCUSSION...As of 2215 UTC, regional radar analysis showed an ongoing cluster of severe storms over east-central OH. A mixed mode of line segments and supercellular elements has been noted with storms thus far owing to moderate buoyancy and 45-50 kt of effective shear. The environment downstream is less moist (low to mid 50s F dewpoints), but steep low-level lapse rates and ~500 J/kg of MLCAPE will continue to support storm organization into western PA and northern WV. With the mixed mode and drier surface conditions, damaging wind gusts appear the most likely. Though, long hodographs suggest hail and a a couple of tornadoes will also remain possible with the more persistent supercells. Recent radar and hi-res model trends suggest the southern portions of the ongoing cluster are most likely to maintain intensity over the next couple of hours. Additional discrete development has also been noted farther east ahead of these storms. Given the potential for the severe risk to extend into western PA this evening, a local extension of WW123 eastward has being coordinated. ..Lyons/Guyer.. 04/17/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CTP...PBZ...RLX...CLE...ILN... LAT...LON 39507983 39168077 39128182 39248275 39428356 39668334 40128262 40778202 41218172 41588164 41878106 42048024 41987964 41887943 41787925 41657903 41047893 40517896 39937944 39507983 Read more

WW 0123 Status Updates
STATUS REPORT ON WW 123 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 WSW ZZV TO 25 ENE ZZV TO 20 WNW HLG TO 25 NW PIT TO 25 WNW PIT TO 20 SSE YNG TO 10 NNE YNG TO 30 W ERI. ..LYONS..04/17/24 ATTN...WFO...CLE...RLX...PBZ... STATUS REPORT FOR WT 123 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS OHC007-009-013-059-067-081-111-115-119-121-127-167-180040- OH . OHIO COUNTIES INCLUDED ARE ASHTABULA ATHENS BELMONT GUERNSEY HARRISON JEFFERSON MONROE MORGAN MUSKINGUM NOBLE PERRY WASHINGTON PAC003-005-007-019-031-039-049-051-053-059-063-065-073-085-121- 125-129-180040- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ALLEGHENY ARMSTRONG BEAVER BUTLER CLARION CRAWFORD ERIE FAYETTE FOREST GREENE INDIANA JEFFERSON LAWRENCE MERCER VENANGO WASHINGTON WESTMORELAND Read more

WW 123 TORNADO OH PA WV LE 171945Z - 180400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 123 NWS Storm Prediction Center Norman OK 345 PM EDT Wed Apr 17 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Eastern Ohio Far Western Pennsylvania Far Northern West Virginia Lake Erie * Effective this Wednesday afternoon from 345 PM until Midnight EDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorms currently ongoing across central Ohio are expected to continue progressing eastward this afternoon and evening. The environment ahead of these storms will remain supportive of supercells capable of tornadoes, hail from 1" to 1.5", and damaging gusts from 45 to 65 mph. The tornado watch area is approximately along and 55 statute miles east and west of a line from 20 miles east southeast of Parkersburg WV to 45 miles north of Youngstown OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 121...WW 122... AVIATION...Tornadoes and 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 25035. ...Mosier Read more

MD 0476 CONCERNING TORNADO WATCH 122...123... FOR PORTIONS OF EASTERN OH...WESTERN PA...AND NORTHERN WV
Mesoscale Discussion 0476 NWS Storm Prediction Center Norman OK 0523 PM CDT Wed Apr 17 2024 Areas affected...portions of eastern OH...western PA...and northern WV Concerning...Tornado Watch 122...123... Valid 172223Z - 180000Z The severe weather threat for Tornado Watch 122, 123 continues. SUMMARY...The severe risk continues across WW122 and WW123. Damaging winds, hail and a couple of tornadoes are possible. A local extension has been coordinated on the eastern edge of WW123. DISCUSSION...As of 2215 UTC, regional radar analysis showed an ongoing cluster of severe storms over east-central OH. A mixed mode of line segments and supercellular elements has been noted with storms thus far owing to moderate buoyancy and 45-50 kt of effective shear. The environment downstream is less moist (low to mid 50s F dewpoints), but steep low-level lapse rates and ~500 J/kg of MLCAPE will continue to support storm organization into western PA and northern WV. With the mixed mode and drier surface conditions, damaging wind gusts appear the most likely. Though, long hodographs suggest hail and a a couple of tornadoes will also remain possible with the more persistent supercells. Recent radar and hi-res model trends suggest the southern portions of the ongoing cluster are most likely to maintain intensity over the next couple of hours. Additional discrete development has also been noted farther east ahead of these storms. Given the potential for the severe risk to extend into western PA this evening, a local extension of WW123 eastward has being coordinated. ..Lyons/Guyer.. 04/17/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CTP...PBZ...RLX...CLE...ILN... LAT...LON 39507983 39168077 39128182 39248275 39428356 39668334 40128262 40778202 41218172 41588164 41878106 42048024 41987964 41887943 41787925 41657903 41047893 40517896 39937944 39507983 Read more

WW 0123 Status Updates
STATUS REPORT ON WW 123 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 WSW ZZV TO 25 ENE ZZV TO 20 WNW HLG TO 25 NW PIT TO 25 WNW PIT TO 20 SSE YNG TO 10 NNE YNG TO 30 W ERI. ..LYONS..04/17/24 ATTN...WFO...CLE...RLX...PBZ... STATUS REPORT FOR WT 123 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS OHC007-009-013-059-067-081-111-115-119-121-127-167-180040- OH . OHIO COUNTIES INCLUDED ARE ASHTABULA ATHENS BELMONT GUERNSEY HARRISON JEFFERSON MONROE MORGAN MUSKINGUM NOBLE PERRY WASHINGTON PAC003-005-007-019-031-039-049-051-053-059-063-065-073-085-121- 125-129-180040- PA . PENNSYLVANIA COUNTIES INCLUDED ARE ALLEGHENY ARMSTRONG BEAVER BUTLER CLARION CRAWFORD ERIE FAYETTE FOREST GREENE INDIANA JEFFERSON LAWRENCE MERCER VENANGO WASHINGTON WESTMORELAND Read more

WW 123 TORNADO OH PA WV LE 171945Z - 180400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 123 NWS Storm Prediction Center Norman OK 345 PM EDT Wed Apr 17 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Eastern Ohio Far Western Pennsylvania Far Northern West Virginia Lake Erie * Effective this Wednesday afternoon from 345 PM until Midnight EDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorms currently ongoing across central Ohio are expected to continue progressing eastward this afternoon and evening. The environment ahead of these storms will remain supportive of supercells capable of tornadoes, hail from 1" to 1.5", and damaging gusts from 45 to 65 mph. The tornado watch area is approximately along and 55 statute miles east and west of a line from 20 miles east southeast of Parkersburg WV to 45 miles north of Youngstown OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 121...WW 122... AVIATION...Tornadoes and 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 25035. ...Mosier Read more

WW 0122 Status Updates
STATUS REPORT ON WW 122 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE DAY TO 10 ENE CMH TO 35 SE MFD TO 20 W CAK TO 10 NE CLE TO 25 NNE CLE. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0476 ..LYONS..04/17/24 ATTN...WFO...IWX...IND...ILN...CLE... STATUS REPORT FOR WT 122 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS OHC035-045-047-075-089-103-129-169-172340- OH . OHIO COUNTIES INCLUDED ARE CUYAHOGA FAIRFIELD FAYETTE HOLMES LICKING MEDINA PICKAWAY WAYNE LEZ146-172340- CW . ADJACENT COASTAL WATERS INCLUDED ARE AVON POINT TO WILLOWICK OH 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 0122 Status Updates
STATUS REPORT ON WW 122 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE DAY TO 10 ENE CMH TO 35 SE MFD TO 20 W CAK TO 10 NE CLE TO 25 NNE CLE. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0476 ..LYONS..04/17/24 ATTN...WFO...IWX...IND...ILN...CLE... STATUS REPORT FOR WT 122 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS OHC035-045-047-075-089-103-129-169-172340- OH . OHIO COUNTIES INCLUDED ARE CUYAHOGA FAIRFIELD FAYETTE HOLMES LICKING MEDINA PICKAWAY WAYNE LEZ146-172340- CW . ADJACENT COASTAL WATERS INCLUDED ARE AVON POINT TO WILLOWICK OH 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 0122 Status Updates
STATUS REPORT ON WW 122 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 ESE DAY TO 10 ENE CMH TO 35 SE MFD TO 20 W CAK TO 10 NE CLE TO 25 NNE CLE. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0476 ..LYONS..04/17/24 ATTN...WFO...IWX...IND...ILN...CLE... STATUS REPORT FOR WT 122 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS OHC035-045-047-075-089-103-129-169-172340- OH . OHIO COUNTIES INCLUDED ARE CUYAHOGA FAIRFIELD FAYETTE HOLMES LICKING MEDINA PICKAWAY WAYNE LEZ146-172340- CW . ADJACENT COASTAL WATERS INCLUDED ARE AVON POINT TO WILLOWICK OH 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 122 TORNADO IN OH LE 171620Z - 172300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 122 NWS Storm Prediction Center Norman OK 1220 PM EDT Wed Apr 17 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Eastern Indiana Western and Central Ohio Lake Erie * Effective this Wednesday afternoon and evening from 1220 PM until 700 PM EDT. * Primary threats include... A couple tornadoes possible Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm coverage is expected to increase over the next several hours. Environmental conditions support the potential for a few supercells capable of tornadoes, large hail 1" to 1.5" in diameter, and damaging gusts from 50 to 60 mph. The tornado watch area is approximately along and 90 statute miles east and west of a line from 25 miles south of Dayton OH to 40 miles north northeast of Findlay OH. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 121... AVIATION...Tornadoes and 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 24030. ...Mosier Read more

No Mesoscale Discussions are in effect as of Wed Apr 17 21:50:03 UTC 2024.

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0340 PM CDT Wed Apr 17 2024 Valid 191200Z - 251200Z Given recent and expected precipitation across much of the CONUS through the extended forecast period, fire weather concerns should remain low for most areas. Portions of the Southwest and southern Great Basin are expected to generally remain dry. At present, fuels are not receptive and winds are forecast to remain rather light. Toward mid to late next week, models are in reasonable agreement that a broad trough will be in the West. Some potential for an increase in fire weather concerns will exist in parts of central/western New Mexico where fuels may become dry enough to support fire spread. This increase will coincide with increasing winds as the trough moves eastward. Confidence in critical fire weather occurring is too low for highlights. ..Wendt.. 04/17/2024 ...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 0340 PM CDT Wed Apr 17 2024 Valid 191200Z - 251200Z Given recent and expected precipitation across much of the CONUS through the extended forecast period, fire weather concerns should remain low for most areas. Portions of the Southwest and southern Great Basin are expected to generally remain dry. At present, fuels are not receptive and winds are forecast to remain rather light. Toward mid to late next week, models are in reasonable agreement that a broad trough will be in the West. Some potential for an increase in fire weather concerns will exist in parts of central/western New Mexico where fuels may become dry enough to support fire spread. This increase will coincide with increasing winds as the trough moves eastward. Confidence in critical fire weather occurring is too low for highlights. ..Wendt.. 04/17/2024 ...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 0340 PM CDT Wed Apr 17 2024 Valid 191200Z - 251200Z Given recent and expected precipitation across much of the CONUS through the extended forecast period, fire weather concerns should remain low for most areas. Portions of the Southwest and southern Great Basin are expected to generally remain dry. At present, fuels are not receptive and winds are forecast to remain rather light. Toward mid to late next week, models are in reasonable agreement that a broad trough will be in the West. Some potential for an increase in fire weather concerns will exist in parts of central/western New Mexico where fuels may become dry enough to support fire spread. This increase will coincide with increasing winds as the trough moves eastward. Confidence in critical fire weather occurring is too low for highlights. ..Wendt.. 04/17/2024 ...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 0340 PM CDT Wed Apr 17 2024 Valid 191200Z - 251200Z Given recent and expected precipitation across much of the CONUS through the extended forecast period, fire weather concerns should remain low for most areas. Portions of the Southwest and southern Great Basin are expected to generally remain dry. At present, fuels are not receptive and winds are forecast to remain rather light. Toward mid to late next week, models are in reasonable agreement that a broad trough will be in the West. Some potential for an increase in fire weather concerns will exist in parts of central/western New Mexico where fuels may become dry enough to support fire spread. This increase will coincide with increasing winds as the trough moves eastward. Confidence in critical fire weather occurring is too low for highlights. ..Wendt.. 04/17/2024 ...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 0340 PM CDT Wed Apr 17 2024 Valid 191200Z - 251200Z Given recent and expected precipitation across much of the CONUS through the extended forecast period, fire weather concerns should remain low for most areas. Portions of the Southwest and southern Great Basin are expected to generally remain dry. At present, fuels are not receptive and winds are forecast to remain rather light. Toward mid to late next week, models are in reasonable agreement that a broad trough will be in the West. Some potential for an increase in fire weather concerns will exist in parts of central/western New Mexico where fuels may become dry enough to support fire spread. This increase will coincide with increasing winds as the trough moves eastward. Confidence in critical fire weather occurring is too low for highlights. ..Wendt.. 04/17/2024 ...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 0340 PM CDT Wed Apr 17 2024 Valid 191200Z - 251200Z Given recent and expected precipitation across much of the CONUS through the extended forecast period, fire weather concerns should remain low for most areas. Portions of the Southwest and southern Great Basin are expected to generally remain dry. At present, fuels are not receptive and winds are forecast to remain rather light. Toward mid to late next week, models are in reasonable agreement that a broad trough will be in the West. Some potential for an increase in fire weather concerns will exist in parts of central/western New Mexico where fuels may become dry enough to support fire spread. This increase will coincide with increasing winds as the trough moves eastward. Confidence in critical fire weather occurring is too low for highlights. ..Wendt.. 04/17/2024 ...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 0340 PM CDT Wed Apr 17 2024 Valid 191200Z - 251200Z Given recent and expected precipitation across much of the CONUS through the extended forecast period, fire weather concerns should remain low for most areas. Portions of the Southwest and southern Great Basin are expected to generally remain dry. At present, fuels are not receptive and winds are forecast to remain rather light. Toward mid to late next week, models are in reasonable agreement that a broad trough will be in the West. Some potential for an increase in fire weather concerns will exist in parts of central/western New Mexico where fuels may become dry enough to support fire spread. This increase will coincide with increasing winds as the trough moves eastward. Confidence in critical fire weather occurring is too low for highlights. ..Wendt.. 04/17/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

MD 0474 CONCERNING TORNADO WATCH 122... FOR PORTIONS OF WESTERN AND NORTH-CENTRAL OH
Mesoscale Discussion 0474 NWS Storm Prediction Center Norman OK 0244 PM CDT Wed Apr 17 2024 Areas affected...portions of western and north-central OH Concerning...Tornado Watch 122... Valid 171944Z - 172115Z The severe weather threat for Tornado Watch 122 continues. SUMMARY...All-hazards severe potential is increasing across parts of western into north-central Ohio the next 1-2 hours. DISCUSSION...Supercell thunderstorms roughly from Miami County to Wyandot County have intensified over the past hour. Radar data shows strengthening cores in 7 km CAPPI analysis while storm relative velocity data shows strengthening of mid and low-level mesocyclones. Furthermore, MRMS MESH has increased on a few thunderstorm cores with at least one TBSS noted. The 17z ILN RAOB showed favorable parameters for continued supercells storm mode with a risk of all severe hazards expected. An increased risk for tornadoes is expected with the activity over the next 1-2 hours. ..Leitman.. 04/17/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CLE...ILN... LAT...LON 41038336 41038253 40578217 40138249 39898320 39878379 39888433 40038455 40468387 41038336 Read more

MD 0475 CONCERNING SEVERE POTENTIAL...WATCH UNLIKELY FOR CENTRAL TEXAS
Mesoscale Discussion 0475 NWS Storm Prediction Center Norman OK 0246 PM CDT Wed Apr 17 2024 Areas affected...central Texas Concerning...Severe potential...Watch unlikely Valid 171946Z - 172115Z Probability of Watch Issuance...20 percent SUMMARY...Isolated supercells are possible in central Texas this afternoon/evening. DISCUSSION...The day-cloud RGB band from GOES-16 shows agitated cumulus through the upper clouds along a moisture boundary moving north through central Texas. SPC mesoanalysis shows some CIN in the vicinity, but with additional heating/moistening, expect a mostly uncapped environment within the next 1 to 2 hours. Forcing in the region is weak, but convergence along this boundary (evident in moisture convergence on SPC mesoanalysis) may be sufficient to break the cap. If any storms develop, the mode will be supercellular given 55 knot of effective shear and 1500 J/kg MLCAPE. Long, straight hodographs will support splitting supercells. Given the lack of greater forcing, expect the threat to remain isolated to only one or two storms with the threat waning near sunset as the boundary layer cools. ..Bentley.. 04/17/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FWD...EWX...SJT... LAT...LON 30150004 30480011 30870009 31259978 31869893 32099749 31419712 30469750 29999816 30109920 30150004 Read more