Aggregator

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 16 2024 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY INTO THE SOUTHWESTERN GREAT LAKES AND LOWER OHIO VALLEY... ...SUMMARY... Several clusters of strong to severe storms will continue to impact the mid to upper Mississippi Valley this evening. The severe threat will affect the southwestern Great Lakes and lower Ohio Valley later tonight. Damaging wind gusts, isolated large hail, and a few tornadoes will be possible. ...Mid to Upper Mississippi Valley/Southwestern Great Lakes/Lower Ohio Valley... An upper-level low is evident on water vapor imagery over the mid Missouri Valley, with an associated 60 to 80 knot mid-level jet located in the mid Mississippi Valley. At the surface, a 989 mb low is located in far northwest Iowa, with a corridor of maximized low-level moisture (surface dewpoints in the 60s F) in the mid to upper Mississippi Valley. A line of strong to severe thunderstorms is ongoing along a zone of low-level convergence from northwest Illinois into southern Wisconsin. This line will likely be maintained, moving east-northeastward to the western shore of Lake Michigan by late this evening. Ahead of the line, the RAP has MLCAPE in the 1000 to 1500 J/kg range. WSR-88D VWPs in central and northern Illinois have 0-6 km shear around 60 knots suggesting the severe threat will continue this evening. Wind damage will be likely with the more intense parts of the line, especially with the faster moving bowing segments. WSR-88D VWPs across central and northern Illinois have 0-3 storm-relative helicity generally in the 500 to 550 m2/s2 range. This will likely continue to support an isolated tornado threat with rotating storms that remain somewhat discrete, or with circulations within the line itself. Isolated large hail could also accompany the stronger rotating cells. Further south into the mid Mississippi Valley, the RAP is analyzing MLCAPE in the 1200 to 1500 J/kg range across much of eastern Missouri and Arkansas. The instability combined with 0-6 km shear in the 60 to 75 knot range will likely support a severe threat this evening. However, large-scale ascent is weaker this far south suggesting that storm coverage will be isolated. Any cell that can intensify near the instability axis this evening, could be associated with wind damage and hail. A marginal tornado threat will also be possible. ..Broyles.. 04/17/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 16 2024 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY INTO THE SOUTHWESTERN GREAT LAKES AND LOWER OHIO VALLEY... ...SUMMARY... Several clusters of strong to severe storms will continue to impact the mid to upper Mississippi Valley this evening. The severe threat will affect the southwestern Great Lakes and lower Ohio Valley later tonight. Damaging wind gusts, isolated large hail, and a few tornadoes will be possible. ...Mid to Upper Mississippi Valley/Southwestern Great Lakes/Lower Ohio Valley... An upper-level low is evident on water vapor imagery over the mid Missouri Valley, with an associated 60 to 80 knot mid-level jet located in the mid Mississippi Valley. At the surface, a 989 mb low is located in far northwest Iowa, with a corridor of maximized low-level moisture (surface dewpoints in the 60s F) in the mid to upper Mississippi Valley. A line of strong to severe thunderstorms is ongoing along a zone of low-level convergence from northwest Illinois into southern Wisconsin. This line will likely be maintained, moving east-northeastward to the western shore of Lake Michigan by late this evening. Ahead of the line, the RAP has MLCAPE in the 1000 to 1500 J/kg range. WSR-88D VWPs in central and northern Illinois have 0-6 km shear around 60 knots suggesting the severe threat will continue this evening. Wind damage will be likely with the more intense parts of the line, especially with the faster moving bowing segments. WSR-88D VWPs across central and northern Illinois have 0-3 storm-relative helicity generally in the 500 to 550 m2/s2 range. This will likely continue to support an isolated tornado threat with rotating storms that remain somewhat discrete, or with circulations within the line itself. Isolated large hail could also accompany the stronger rotating cells. Further south into the mid Mississippi Valley, the RAP is analyzing MLCAPE in the 1200 to 1500 J/kg range across much of eastern Missouri and Arkansas. The instability combined with 0-6 km shear in the 60 to 75 knot range will likely support a severe threat this evening. However, large-scale ascent is weaker this far south suggesting that storm coverage will be isolated. Any cell that can intensify near the instability axis this evening, could be associated with wind damage and hail. A marginal tornado threat will also be possible. ..Broyles.. 04/17/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 16 2024 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY INTO THE SOUTHWESTERN GREAT LAKES AND LOWER OHIO VALLEY... ...SUMMARY... Several clusters of strong to severe storms will continue to impact the mid to upper Mississippi Valley this evening. The severe threat will affect the southwestern Great Lakes and lower Ohio Valley later tonight. Damaging wind gusts, isolated large hail, and a few tornadoes will be possible. ...Mid to Upper Mississippi Valley/Southwestern Great Lakes/Lower Ohio Valley... An upper-level low is evident on water vapor imagery over the mid Missouri Valley, with an associated 60 to 80 knot mid-level jet located in the mid Mississippi Valley. At the surface, a 989 mb low is located in far northwest Iowa, with a corridor of maximized low-level moisture (surface dewpoints in the 60s F) in the mid to upper Mississippi Valley. A line of strong to severe thunderstorms is ongoing along a zone of low-level convergence from northwest Illinois into southern Wisconsin. This line will likely be maintained, moving east-northeastward to the western shore of Lake Michigan by late this evening. Ahead of the line, the RAP has MLCAPE in the 1000 to 1500 J/kg range. WSR-88D VWPs in central and northern Illinois have 0-6 km shear around 60 knots suggesting the severe threat will continue this evening. Wind damage will be likely with the more intense parts of the line, especially with the faster moving bowing segments. WSR-88D VWPs across central and northern Illinois have 0-3 storm-relative helicity generally in the 500 to 550 m2/s2 range. This will likely continue to support an isolated tornado threat with rotating storms that remain somewhat discrete, or with circulations within the line itself. Isolated large hail could also accompany the stronger rotating cells. Further south into the mid Mississippi Valley, the RAP is analyzing MLCAPE in the 1200 to 1500 J/kg range across much of eastern Missouri and Arkansas. The instability combined with 0-6 km shear in the 60 to 75 knot range will likely support a severe threat this evening. However, large-scale ascent is weaker this far south suggesting that storm coverage will be isolated. Any cell that can intensify near the instability axis this evening, could be associated with wind damage and hail. A marginal tornado threat will also be possible. ..Broyles.. 04/17/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 16 2024 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY INTO THE SOUTHWESTERN GREAT LAKES AND LOWER OHIO VALLEY... ...SUMMARY... Several clusters of strong to severe storms will continue to impact the mid to upper Mississippi Valley this evening. The severe threat will affect the southwestern Great Lakes and lower Ohio Valley later tonight. Damaging wind gusts, isolated large hail, and a few tornadoes will be possible. ...Mid to Upper Mississippi Valley/Southwestern Great Lakes/Lower Ohio Valley... An upper-level low is evident on water vapor imagery over the mid Missouri Valley, with an associated 60 to 80 knot mid-level jet located in the mid Mississippi Valley. At the surface, a 989 mb low is located in far northwest Iowa, with a corridor of maximized low-level moisture (surface dewpoints in the 60s F) in the mid to upper Mississippi Valley. A line of strong to severe thunderstorms is ongoing along a zone of low-level convergence from northwest Illinois into southern Wisconsin. This line will likely be maintained, moving east-northeastward to the western shore of Lake Michigan by late this evening. Ahead of the line, the RAP has MLCAPE in the 1000 to 1500 J/kg range. WSR-88D VWPs in central and northern Illinois have 0-6 km shear around 60 knots suggesting the severe threat will continue this evening. Wind damage will be likely with the more intense parts of the line, especially with the faster moving bowing segments. WSR-88D VWPs across central and northern Illinois have 0-3 storm-relative helicity generally in the 500 to 550 m2/s2 range. This will likely continue to support an isolated tornado threat with rotating storms that remain somewhat discrete, or with circulations within the line itself. Isolated large hail could also accompany the stronger rotating cells. Further south into the mid Mississippi Valley, the RAP is analyzing MLCAPE in the 1200 to 1500 J/kg range across much of eastern Missouri and Arkansas. The instability combined with 0-6 km shear in the 60 to 75 knot range will likely support a severe threat this evening. However, large-scale ascent is weaker this far south suggesting that storm coverage will be isolated. Any cell that can intensify near the instability axis this evening, could be associated with wind damage and hail. A marginal tornado threat will also be possible. ..Broyles.. 04/17/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 16 2024 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY INTO THE SOUTHWESTERN GREAT LAKES AND LOWER OHIO VALLEY... ...SUMMARY... Several clusters of strong to severe storms will continue to impact the mid to upper Mississippi Valley this evening. The severe threat will affect the southwestern Great Lakes and lower Ohio Valley later tonight. Damaging wind gusts, isolated large hail, and a few tornadoes will be possible. ...Mid to Upper Mississippi Valley/Southwestern Great Lakes/Lower Ohio Valley... An upper-level low is evident on water vapor imagery over the mid Missouri Valley, with an associated 60 to 80 knot mid-level jet located in the mid Mississippi Valley. At the surface, a 989 mb low is located in far northwest Iowa, with a corridor of maximized low-level moisture (surface dewpoints in the 60s F) in the mid to upper Mississippi Valley. A line of strong to severe thunderstorms is ongoing along a zone of low-level convergence from northwest Illinois into southern Wisconsin. This line will likely be maintained, moving east-northeastward to the western shore of Lake Michigan by late this evening. Ahead of the line, the RAP has MLCAPE in the 1000 to 1500 J/kg range. WSR-88D VWPs in central and northern Illinois have 0-6 km shear around 60 knots suggesting the severe threat will continue this evening. Wind damage will be likely with the more intense parts of the line, especially with the faster moving bowing segments. WSR-88D VWPs across central and northern Illinois have 0-3 storm-relative helicity generally in the 500 to 550 m2/s2 range. This will likely continue to support an isolated tornado threat with rotating storms that remain somewhat discrete, or with circulations within the line itself. Isolated large hail could also accompany the stronger rotating cells. Further south into the mid Mississippi Valley, the RAP is analyzing MLCAPE in the 1200 to 1500 J/kg range across much of eastern Missouri and Arkansas. The instability combined with 0-6 km shear in the 60 to 75 knot range will likely support a severe threat this evening. However, large-scale ascent is weaker this far south suggesting that storm coverage will be isolated. Any cell that can intensify near the instability axis this evening, could be associated with wind damage and hail. A marginal tornado threat will also be possible. ..Broyles.. 04/17/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 16 2024 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY INTO THE SOUTHWESTERN GREAT LAKES AND LOWER OHIO VALLEY... ...SUMMARY... Several clusters of strong to severe storms will continue to impact the mid to upper Mississippi Valley this evening. The severe threat will affect the southwestern Great Lakes and lower Ohio Valley later tonight. Damaging wind gusts, isolated large hail, and a few tornadoes will be possible. ...Mid to Upper Mississippi Valley/Southwestern Great Lakes/Lower Ohio Valley... An upper-level low is evident on water vapor imagery over the mid Missouri Valley, with an associated 60 to 80 knot mid-level jet located in the mid Mississippi Valley. At the surface, a 989 mb low is located in far northwest Iowa, with a corridor of maximized low-level moisture (surface dewpoints in the 60s F) in the mid to upper Mississippi Valley. A line of strong to severe thunderstorms is ongoing along a zone of low-level convergence from northwest Illinois into southern Wisconsin. This line will likely be maintained, moving east-northeastward to the western shore of Lake Michigan by late this evening. Ahead of the line, the RAP has MLCAPE in the 1000 to 1500 J/kg range. WSR-88D VWPs in central and northern Illinois have 0-6 km shear around 60 knots suggesting the severe threat will continue this evening. Wind damage will be likely with the more intense parts of the line, especially with the faster moving bowing segments. WSR-88D VWPs across central and northern Illinois have 0-3 storm-relative helicity generally in the 500 to 550 m2/s2 range. This will likely continue to support an isolated tornado threat with rotating storms that remain somewhat discrete, or with circulations within the line itself. Isolated large hail could also accompany the stronger rotating cells. Further south into the mid Mississippi Valley, the RAP is analyzing MLCAPE in the 1200 to 1500 J/kg range across much of eastern Missouri and Arkansas. The instability combined with 0-6 km shear in the 60 to 75 knot range will likely support a severe threat this evening. However, large-scale ascent is weaker this far south suggesting that storm coverage will be isolated. Any cell that can intensify near the instability axis this evening, could be associated with wind damage and hail. A marginal tornado threat will also be possible. ..Broyles.. 04/17/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 16 2024 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY INTO THE SOUTHWESTERN GREAT LAKES AND LOWER OHIO VALLEY... ...SUMMARY... Several clusters of strong to severe storms will continue to impact the mid to upper Mississippi Valley this evening. The severe threat will affect the southwestern Great Lakes and lower Ohio Valley later tonight. Damaging wind gusts, isolated large hail, and a few tornadoes will be possible. ...Mid to Upper Mississippi Valley/Southwestern Great Lakes/Lower Ohio Valley... An upper-level low is evident on water vapor imagery over the mid Missouri Valley, with an associated 60 to 80 knot mid-level jet located in the mid Mississippi Valley. At the surface, a 989 mb low is located in far northwest Iowa, with a corridor of maximized low-level moisture (surface dewpoints in the 60s F) in the mid to upper Mississippi Valley. A line of strong to severe thunderstorms is ongoing along a zone of low-level convergence from northwest Illinois into southern Wisconsin. This line will likely be maintained, moving east-northeastward to the western shore of Lake Michigan by late this evening. Ahead of the line, the RAP has MLCAPE in the 1000 to 1500 J/kg range. WSR-88D VWPs in central and northern Illinois have 0-6 km shear around 60 knots suggesting the severe threat will continue this evening. Wind damage will be likely with the more intense parts of the line, especially with the faster moving bowing segments. WSR-88D VWPs across central and northern Illinois have 0-3 storm-relative helicity generally in the 500 to 550 m2/s2 range. This will likely continue to support an isolated tornado threat with rotating storms that remain somewhat discrete, or with circulations within the line itself. Isolated large hail could also accompany the stronger rotating cells. Further south into the mid Mississippi Valley, the RAP is analyzing MLCAPE in the 1200 to 1500 J/kg range across much of eastern Missouri and Arkansas. The instability combined with 0-6 km shear in the 60 to 75 knot range will likely support a severe threat this evening. However, large-scale ascent is weaker this far south suggesting that storm coverage will be isolated. Any cell that can intensify near the instability axis this evening, could be associated with wind damage and hail. A marginal tornado threat will also be possible. ..Broyles.. 04/17/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0800 PM CDT Tue Apr 16 2024 Valid 170100Z - 171200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF THE MID TO UPPER MISSISSIPPI VALLEY INTO THE SOUTHWESTERN GREAT LAKES AND LOWER OHIO VALLEY... ...SUMMARY... Several clusters of strong to severe storms will continue to impact the mid to upper Mississippi Valley this evening. The severe threat will affect the southwestern Great Lakes and lower Ohio Valley later tonight. Damaging wind gusts, isolated large hail, and a few tornadoes will be possible. ...Mid to Upper Mississippi Valley/Southwestern Great Lakes/Lower Ohio Valley... An upper-level low is evident on water vapor imagery over the mid Missouri Valley, with an associated 60 to 80 knot mid-level jet located in the mid Mississippi Valley. At the surface, a 989 mb low is located in far northwest Iowa, with a corridor of maximized low-level moisture (surface dewpoints in the 60s F) in the mid to upper Mississippi Valley. A line of strong to severe thunderstorms is ongoing along a zone of low-level convergence from northwest Illinois into southern Wisconsin. This line will likely be maintained, moving east-northeastward to the western shore of Lake Michigan by late this evening. Ahead of the line, the RAP has MLCAPE in the 1000 to 1500 J/kg range. WSR-88D VWPs in central and northern Illinois have 0-6 km shear around 60 knots suggesting the severe threat will continue this evening. Wind damage will be likely with the more intense parts of the line, especially with the faster moving bowing segments. WSR-88D VWPs across central and northern Illinois have 0-3 storm-relative helicity generally in the 500 to 550 m2/s2 range. This will likely continue to support an isolated tornado threat with rotating storms that remain somewhat discrete, or with circulations within the line itself. Isolated large hail could also accompany the stronger rotating cells. Further south into the mid Mississippi Valley, the RAP is analyzing MLCAPE in the 1200 to 1500 J/kg range across much of eastern Missouri and Arkansas. The instability combined with 0-6 km shear in the 60 to 75 knot range will likely support a severe threat this evening. However, large-scale ascent is weaker this far south suggesting that storm coverage will be isolated. Any cell that can intensify near the instability axis this evening, could be associated with wind damage and hail. A marginal tornado threat will also be possible. ..Broyles.. 04/17/2024 Read more

WW 0119 Status Updates
STATUS REPORT ON WW 119 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SE SPI TO 35 SW SPI. ..KERR..04/17/24 ATTN...WFO...LSX...ILX... STATUS REPORT FOR WS 119 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC129-167-170240- IL . ILLINOIS COUNTIES INCLUDED ARE MENARD SANGAMON 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 0119 Status Updates
STATUS REPORT ON WW 119 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SE SPI TO 35 SW SPI. ..KERR..04/17/24 ATTN...WFO...LSX...ILX... STATUS REPORT FOR WS 119 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC129-167-170240- IL . ILLINOIS COUNTIES INCLUDED ARE MENARD SANGAMON 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 119 SEVERE TSTM IL MO 162020Z - 170200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 119 NWS Storm Prediction Center Norman OK 320 PM CDT Tue Apr 16 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern Illinois Southeast Missouri * Effective this Tuesday afternoon and evening from 320 PM until 900 PM CDT. * Primary threats include... Scattered damaging wind gusts to 65 mph possible Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Strong to severe storms will continue to move east-northeastward across the region this afternoon, with damaging winds and hail as the primary risks. The severe thunderstorm watch area is approximately along and 55 statute miles east and west of a line from 45 miles west northwest of Mattoon IL to 40 miles southwest of Farmington MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). 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 116...WW 117...WW 118... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24035. ...Guyer Read more

WW 0117 Status Updates
STATUS REPORT ON WW 117 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSW PIA TO 20 S MLI TO 45 WSW RFD TO 15 NNW MSN. ..LYONS..04/17/24 ATTN...WFO...DVN...ARX...LSX...ILX... STATUS REPORT FOR WT 117 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC011-073-095-123-143-155-175-177-195-170240- IL . ILLINOIS COUNTIES INCLUDED ARE BUREAU HENRY KNOX MARSHALL PEORIA PUTNAM STARK STEPHENSON WHITESIDE 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 0117 Status Updates
STATUS REPORT ON WW 117 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SSW PIA TO 20 S MLI TO 45 WSW RFD TO 15 NNW MSN. ..LYONS..04/17/24 ATTN...WFO...DVN...ARX...LSX...ILX... STATUS REPORT FOR WT 117 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC011-073-095-123-143-155-175-177-195-170240- IL . ILLINOIS COUNTIES INCLUDED ARE BUREAU HENRY KNOX MARSHALL PEORIA PUTNAM STARK STEPHENSON WHITESIDE 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 0117 Status Updates
STATUS REPORT ON WW 117 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NNW ALN TO 20 SSW UIN TO 20 SW BRL TO 5 S LNR. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0468 ..LYONS..04/17/24 ATTN...WFO...DVN...ARX...LSX...ILX... STATUS REPORT FOR WT 117 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC001-009-011-015-017-057-067-071-073-085-095-109-123-125-131- 137-143-149-155-161-169-171-175-177-187-195-170140- IL . ILLINOIS COUNTIES INCLUDED ARE ADAMS BROWN BUREAU CARROLL CASS FULTON HANCOCK HENDERSON HENRY JO DAVIESS KNOX MCDONOUGH MARSHALL MASON MERCER MORGAN PEORIA PIKE PUTNAM ROCK ISLAND SCHUYLER SCOTT STARK STEPHENSON WARREN WHITESIDE IAC045-097-163-170140- IA . IOWA COUNTIES INCLUDED ARE CLINTON JACKSON SCOTT Read more

WW 117 TORNADO IA IL MO WI 161705Z - 170100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 117 NWS Storm Prediction Center Norman OK 1205 PM CDT Tue Apr 16 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Eastern Iowa Western and Northwest Illinois Northeast Missouri Southwest Wisconsin * Effective this Tuesday afternoon and evening from 1205 PM until 800 PM CDT. * Primary threats include... A few tornadoes likely with a couple intense tornadoes possible Scattered damaging wind gusts to 70 mph likely Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...Arcing bands and clusters of severe storms including supercells will steadily move northeastward across the region through the afternoon, with the potential for all hazards including tornadoes, a couple of which could be strong. The tornado watch area is approximately along and 60 statute miles east and west of a line from 40 miles north of Dubuque IA to 75 miles south southwest of Quincy IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). 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 116... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 23040. ...Guyer Read more

MD 0466 CONCERNING TORNADO WATCH 117...118... FOR PORTIONS OF NORTH-CENTRAL IOW AND SOUTHERN MINNESOTA.
Mesoscale Discussion 0466 NWS Storm Prediction Center Norman OK 0612 PM CDT Tue Apr 16 2024 Areas affected...portions of north-central iow and southern Minnesota. Concerning...Tornado Watch 117...118... Valid 162312Z - 170015Z The severe weather threat for Tornado Watch 117, 118 continues. SUMMARY...The severe risk over tornado Watch 118 may continue for another 1-2 hours. Some redevelopment along the dryline is possible with a risk for an isolated tornado and hail. DISCUSSION...Ongoing storms over eastern IA have pushed east of the dryline allowing for clearing over parts of north-central IA and far southern MN. Some air mass recovery is possible in the next 1-2 hours with strong mid-level ascent overspreading the area. Upper 50s to low 60s F surface dewpoints are supporting 500-1000 J/kg of MUCAPE with strong mid and low-level shear profiles in place. Renewed development has recently taken place near the IA/MN border suggesting some redevelopment is possible. The main threats would be an isolated tornado or hail with any storms able to become established. Confidence is not high given the degree of convective overturning that has taken place. However, the severe risk may continue for another hour or two. ..Lyons.. 04/16/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DVN...ARX...MPX...DMX...FSD... LAT...LON 43789405 43669258 43399215 43049192 42639186 41959210 41699236 41539273 41669298 42039315 42469348 43049415 43389534 43559548 43709531 43789475 43789405 Read more

WW 0118 Status Updates
STATUS REPORT ON WW 118 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE DSM TO 30 SE FOD TO 10 NE FOD TO 20 ESE SPW TO 15 WNW SPW TO 20 E FSD. ..LYONS..04/16/24 ATTN...WFO...DMX...FSD...OAX... STATUS REPORT FOR WT 118 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC059-063-081-091-109-147-189-195-162340- IA . IOWA COUNTIES INCLUDED ARE DICKINSON EMMET HANCOCK HUMBOLDT KOSSUTH PALO ALTO WINNEBAGO WORTH 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 0118 Status Updates
STATUS REPORT ON WW 118 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE DSM TO 30 SE FOD TO 10 NE FOD TO 20 ESE SPW TO 15 WNW SPW TO 20 E FSD. ..LYONS..04/16/24 ATTN...WFO...DMX...FSD...OAX... STATUS REPORT FOR WT 118 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC059-063-081-091-109-147-189-195-162340- IA . IOWA COUNTIES INCLUDED ARE DICKINSON EMMET HANCOCK HUMBOLDT KOSSUTH PALO ALTO WINNEBAGO WORTH 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 0118 Status Updates
STATUS REPORT ON WW 118 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 ENE DSM TO 30 SE FOD TO 10 NE FOD TO 20 ESE SPW TO 15 WNW SPW TO 20 E FSD. ..LYONS..04/16/24 ATTN...WFO...DMX...FSD...OAX... STATUS REPORT FOR WT 118 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC059-063-081-091-109-147-189-195-162340- IA . IOWA COUNTIES INCLUDED ARE DICKINSON EMMET HANCOCK HUMBOLDT KOSSUTH PALO ALTO WINNEBAGO WORTH 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 0119 Status Updates
STATUS REPORT ON WW 119 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 WSW MVN TO 30 ENE VIH. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 467. ..KERR..04/16/24 ATTN...WFO...LSX...ILX... STATUS REPORT FOR WS 119 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS ILC005-013-021-025-027-049-051-061-083-117-119-121-129-133-135- 163-167-173-189-170040- IL . ILLINOIS COUNTIES INCLUDED ARE BOND CALHOUN CHRISTIAN CLAY CLINTON EFFINGHAM FAYETTE GREENE JERSEY MACOUPIN MADISON MARION MENARD MONROE MONTGOMERY ST. CLAIR SANGAMON SHELBY WASHINGTON MOC071-099-113-183-189-219-510-170040- MO . MISSOURI COUNTIES INCLUDED ARE FRANKLIN JEFFERSON LINCOLN ST. CHARLES ST. LOUIS WARREN Read more