Aggregator

MD 0489 CONCERNING SEVERE THUNDERSTORM WATCH 128... FOR PORTIONS OF CENTRAL TEXAS
Mesoscale Discussion 0489 NWS Storm Prediction Center Norman OK 0637 PM CDT Thu Apr 18 2024 Areas affected...Portions of central Texas Concerning...Severe Thunderstorm Watch 128... Valid 182337Z - 190100Z The severe weather threat for Severe Thunderstorm Watch 128 continues. SUMMARY...The risk of isolated large hail and severe gusts continues across portions of Severe Thunderstorm Watch 128. DISCUSSION...After several cell mergers and earlier hail reports (up to 2.25 inches in diameter) over parts of central TX, a locally upscale-grown cluster with two embedded supercells has developed. This evolution has been aided by a mostly straight hodograph/crosswise vorticity and very steep deep-layer lapse rates/strong outflow generation. Strong/deep buoyancy (2500-3000 J/kg MLCAPE) ahead of the embedded supercells and aforementioned hodograph shape will continue to support large hail to near 2 inches in diameter. Additionally, the upscale growth could also favor an increasing severe-wind risk (around 60-70 mph) as the cluster tracks slowly south-southeastward this evening. ..Weinman.. 04/18/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FWD...EWX...SJT... LAT...LON 31239874 31589826 31639773 31449734 31159721 30629760 30179829 30229874 30609911 30979907 31239874 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0749 PM CDT Thu Apr 18 2024 Valid 190100Z - 191200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF THE MIDDLE MISSISSIPPI AND LOWER OHIO VALLEYS... ...SUMMARY... Severe thunderstorms should be most concentrated over portions of the middle Mississippi and lower Ohio Valleys early tonight. More isolated activity is expected farther south across Arkansas into south-central Texas. ...01z Update... Low-amplitude short-wave trough is currently ejecting east across IL. This feature is forecast to advance into eastern OH by sunrise. Large-scale support ahead of this feature is expected to encourage ongoing MCS over the middle MS Valley to propagate downstream across the remainder of southeast IL into southern IN later this evening. This MCS is currently severe and has produced a variety of wind/hail reports across MO/western IL. Current thinking is wind/hail will continue to accompany this squall line, at least into the lower OH Valley where it will encounter weaker buoyancy. Surging cold front has advanced into northwest AR, arcing southwest across southeast OK into the Edwards Plateau of southwest TX. Thunderstorms have struggled to develop along portions of this wind shift, but isolated robust convection is currently sagging south through the Hill Country, just north of Llano. Very large hail may yet accompany this activity before low-level lapse rates weaken. Convection should remain isolated along the trailing cold front due in large part to negligible large-scale forcing. Nocturnal cooling should limit coverage across this region. ..Darrow.. 04/19/2024 Read more

WW 0129 Status Updates
STATUS REPORT ON WW 129 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0488 ..THORNTON..04/19/24 ATTN...WFO...PAH...ILX...IND...LMK... STATUS REPORT FOR WS 129 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC003-023-029-033-035-045-047-055-059-065-069-077-079-081-087- 101-127-145-151-153-159-165-181-185-191-193-199-190140- IL . ILLINOIS COUNTIES INCLUDED ARE ALEXANDER CLARK COLES CRAWFORD CUMBERLAND EDGAR EDWARDS FRANKLIN GALLATIN HAMILTON HARDIN JACKSON JASPER JEFFERSON JOHNSON LAWRENCE MASSAC PERRY POPE PULASKI RICHLAND SALINE UNION WABASH WAYNE WHITE WILLIAMSON INC021-025-027-037-051-055-083-093-101-105-117-119-123-125-129- 147-153-163-167-173-190140- IN . INDIANA COUNTIES INCLUDED ARE CLAY CRAWFORD DAVIESS Read more

WW 0129 Status Updates
STATUS REPORT ON WW 129 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0488 ..THORNTON..04/19/24 ATTN...WFO...PAH...ILX...IND...LMK... STATUS REPORT FOR WS 129 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC003-023-029-033-035-045-047-055-059-065-069-077-079-081-087- 101-127-145-151-153-159-165-181-185-191-193-199-190140- IL . ILLINOIS COUNTIES INCLUDED ARE ALEXANDER CLARK COLES CRAWFORD CUMBERLAND EDGAR EDWARDS FRANKLIN GALLATIN HAMILTON HARDIN JACKSON JASPER JEFFERSON JOHNSON LAWRENCE MASSAC PERRY POPE PULASKI RICHLAND SALINE UNION WABASH WAYNE WHITE WILLIAMSON INC021-025-027-037-051-055-083-093-101-105-117-119-123-125-129- 147-153-163-167-173-190140- IN . INDIANA COUNTIES INCLUDED ARE CLAY CRAWFORD DAVIESS Read more

MD 0488 CONCERNING SEVERE THUNDERSTORM WATCH 125... FOR SOUTHEAST MO INTO SOUTHERN IL...EXTREME SOUTHWEST IN...AND WESTERN KY
Mesoscale Discussion 0488 NWS Storm Prediction Center Norman OK 0612 PM CDT Thu Apr 18 2024 Areas affected...Southeast MO into southern IL...extreme southwest IN...and western KY Concerning...Severe Thunderstorm Watch 125... Valid 182312Z - 190045Z The severe weather threat for Severe Thunderstorm Watch 125 continues. SUMMARY...The threat for severe hail and wind, along with an embedded tornado or two, will spread quickly eastward this evening. Eventual downstream watch issuance is likely. DISCUSSION...A broken line of thunderstorms moving across east-central/southeast MO into southwest IL has shown signs of accelerating eastward early this evening, as new cells have merged into the line near/north of the St. Louis area. Increasing outbound velocities have been noted from the KLSX radar, and damaging wind gusts of 60-75 mph may become an increasing threat through the evening as the line of storms moves quickly eastward into a region where modestly strong heating occurred this afternoon. Meanwhile, moderate instability will continue to support a hail threat with any embedded supercells. A modest increase in low-level flow/shear is expected ahead of the line this evening into south-central/southeast IL and southwest IN, which will support a threat of an tornado or two, both with any embedded supercells, and also with stronger QLCS mesovortices. The line of storms will likely approach the edge of WW 125 between 00-01Z, with downstream watch issuance likely into parts of southeast IL and southwest IN. ..Dean/Guyer.. 04/18/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LMK...IND...PAH...ILX...LSX...SGF... LAT...LON 37419215 37559213 39158977 40178876 40108698 38448689 37538711 37338950 37308993 37289030 37249102 37229177 37419215 Read more

WW 0127 Status Updates
STATUS REPORT ON WW 127 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 N MCB TO 35 ESE GWO. ..THORNTON..04/19/24 ATTN...WFO...JAN... STATUS REPORT FOR WS 127 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MSC069-075-079-099-101-103-121-123-159-190140- MS . MISSISSIPPI COUNTIES INCLUDED ARE KEMPER LAUDERDALE LEAKE NESHOBA NEWTON NOXUBEE RANKIN SCOTT WINSTON 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