SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Apr 18, 2025 0100 UTC Day 1 Convective Outlook

4 months 4 weeks ago
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0734 PM CDT Thu Apr 17 2025 Valid 180100Z - 181200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM EXTREME EASTERN NEBRASKA INTO WESTERN AND CENTRAL IOWA... ...SUMMARY... Isolated to scattered severe thunderstorms will continue early tonight from eastern Nebraska into western and central Iowa. Very large hail to 3 inches in diameter or greater, isolated severe gusts of 60-70 mph, and a couple of tornadoes will all be possible. ...01z Update... Water-vapor imagery suggests a weak short-wave trough is located over western NE, extending into northwest KS. Later tonight an 80kt 500mb speed max will translate across KS toward southeast NE, and this will encourage a marked increase in the LLJ across KS into northwest MO by 06z. Latest radar data depicts isolated-scattered severe supercells near the MO River from eastern NE into western IA. This activity will spread east, aided in part by the aforementioned LLJ. With time, storm inflow will gradually lift as the boundary layer decouples, and storms will become more elevated. For the next few hours very large hail remains possible, along with a risk for tornadoes, and wind. As the storms become elevated hail will become the most likely concern. ..Darrow.. 04/18/2025 Read more

SPC Tornado Watch 141 Status Reports

4 months 4 weeks ago
WW 0141 Status Updates
STATUS REPORT ON WW 141 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SSE HSI TO 10 WSW LNK TO 20 W OMA TO 25 NNW DNS. ..BENTLEY..04/18/25 ATTN...WFO...DMX...OAX...GID... STATUS REPORT FOR WT 141 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC003-009-027-029-047-071-085-129-133-137-145-155-165-173- 180140- IA . IOWA COUNTIES INCLUDED ARE ADAMS AUDUBON CARROLL CASS CRAWFORD FREMONT HARRISON MILLS MONONA MONTGOMERY PAGE POTTAWATTAMIE SHELBY TAYLOR NEC025-055-059-067-095-097-109-129-131-151-153-155-169-177- 180140- NE . NEBRASKA COUNTIES INCLUDED ARE CASS DOUGLAS FILLMORE GAGE JEFFERSON JOHNSON LANCASTER NUCKOLLS OTOE SALINE SARPY SAUNDERS THAYER WASHINGTON Read more

SPC MD 461

4 months 4 weeks ago
MD 0461 CONCERNING SEVERE THUNDERSTORM WATCH 140... FOR SOUTHEAST MINNESOTA INTO NORTHWEST IOWA
Mesoscale Discussion 0461 NWS Storm Prediction Center Norman OK 0556 PM CDT Thu Apr 17 2025 Areas affected...Southeast Minnesota into Northwest Iowa Concerning...Severe Thunderstorm Watch 140... Valid 172256Z - 180100Z The severe weather threat for Severe Thunderstorm Watch 140 continues. SUMMARY...Storms in southeast Minnesota will pose a short-term threat for small to marginally severe hail and perhaps isolated wind damage. Additional development, though not certain, is possible in Northwest Iowa. Large hail and damaging winds would be the main threat in that area. DISCUSSION...A line of storms south of the Twin Cities will continue eastward. This line has shown a weakening trend over the last hour as it has encountered cooler/drier air. Isolated wind damage and small to marginally sever hail could occur with this activity, but a continued downward trend in intensity is expected. A small zone of greater surface heating ahead of the cold front is situated in northwest Iowa. As an upstream shortwave perturbation moves towards the area this evening, modestly increasing frontal convergence and mid-level ascent could promote an additional storm or two within this zone. Should storms form here, steep mid-level lapse rates and 40 kts of effective shear will support large hail and damaging wind potential. ..Wendt.. 04/17/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ARX...MPX...DMX...FSD... LAT...LON 42299536 42279594 42319622 42489614 42889588 43759492 44189462 44449410 44539336 44269239 43779237 42819424 42399481 42299536 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN Read more

SPC MD 460

4 months 4 weeks ago
MD 0460 CONCERNING TORNADO WATCH 141... FOR EASTERN NEBRASKA
Mesoscale Discussion 0460 NWS Storm Prediction Center Norman OK 0533 PM CDT Thu Apr 17 2025 Areas affected...eastern Nebraska Concerning...Tornado Watch 141... Valid 172233Z - 180000Z The severe weather threat for Tornado Watch 141 continues. SUMMARY...The greatest large to very large (2 to 3.5 inch) hail and severe wind threat will exist ahead of a supercell in east-central Nebraska this evening, potentially impacting the Omaha metro area. A tornado threat will also increase near sunset. DISCUSSION...A supercell has developed slightly north of the cold front in Hamilton County, Nebraska. An additional storm has developed to its northeast along this frontal zone. One or 2 dominant supercells are expected to emerge out of this as they move east this evening. Some slowing of the surface front, augmentation of the boundary by the developing supercell, and eastward acceleration of the storms should allow them to move along or possibly even ahead of the front by later this evening. The environment ahead of this activity is very favorable for supercell maintenance and the potential for large to very large hail. Modifying the OAX 20Z RAOB for the environment slightly ahead of this storms (87/59F) shows an uncapped parcel with nearly 3000 J/kg MLCAPE, ample buoyancy through the hail growth zone, and 50-60 knots of effective shear. This, combined with expectation for a discrete storm mode, will support very large hail (baseball to softball size) with the strongest supercells. The 21Z WoFs highlights the corridor of the greatest threat ahead of the ongoing supercell into western Iowa by later this evening with WoFS hailcast also indicating peak hail size around 2.75" this evening. In addition, WoFs shows a peak STP around 2 to 3 around 00Z near the Missouri River which will correspond well with peak intensity and location of the ongoing supercell. Therefore, there will be a favorable time window around 00Z to 01Z as the low-level jet strengthens when the tornado threat will be maximized. ..Bentley.. 04/17/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...OAX...GID... LAT...LON 40729789 40809808 40989816 41139813 41579740 41739635 41669555 41409529 41089531 40909635 40799755 40729789 MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN Read more

SPC Tornado Watch 141 Status Reports

4 months 4 weeks ago
WW 0141 Status Updates
STATUS REPORT ON WW 141 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 5 ESE HSI TO 30 ESE GRI TO 15 SE OLU TO 30 WSW TQE TO 20 SSW SUX. ..BENTLEY..04/17/25 ATTN...WFO...DMX...OAX...GID... STATUS REPORT FOR WT 141 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC003-009-027-029-047-071-085-129-133-137-145-155-165-173- 180040- IA . IOWA COUNTIES INCLUDED ARE ADAMS AUDUBON CARROLL CASS CRAWFORD FREMONT HARRISON MILLS MONONA MONTGOMERY PAGE POTTAWATTAMIE SHELBY TAYLOR NEC021-023-025-035-037-039-053-055-059-067-095-097-109-129-131- 151-153-155-159-169-173-177-185-180040- NE . NEBRASKA COUNTIES INCLUDED ARE BURT BUTLER CASS CLAY COLFAX CUMING DODGE DOUGLAS FILLMORE GAGE JEFFERSON JOHNSON LANCASTER NUCKOLLS OTOE SALINE SARPY SAUNDERS Read more

SPC Tornado Watch 141

4 months 4 weeks ago
WW 141 TORNADO IA NE 172145Z - 180500Z
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 141 NWS Storm Prediction Center Norman OK 445 PM CDT Thu Apr 17 2025 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Western Iowa Eastern Nebraska * Effective this Thursday afternoon from 445 PM until Midnight CDT. * Primary threats include... A couple tornadoes possible Scattered large hail likely with isolated very large hail events to 3 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Severe storms are expected to increase from west to east near a boundary that extends across the region. Large hail will be the most common risk, but damaging winds are also expected, and a risk for tornadoes will increase through early evening. The tornado watch area is approximately along and 60 statute miles north and south of a line from 55 miles southeast of Denison IA to 60 miles southwest of Columbus NE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). 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 140... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 3 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 24025. ...Guyer Read more

SPC Severe Thunderstorm Watch 140 Status Reports

4 months 4 weeks ago
WW 0140 Status Updates
STATUS REPORT ON WW 140 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNW SUX TO 45 WSW SPW TO 20 WNW FRM TO 25 NNE MKT TO 25 NNE EAU. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 0461 ..WENDT..04/17/25 ATTN...WFO...FSD...DMX...MPX...ARX... STATUS REPORT FOR WS 140 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC021-025-035-041-059-063-081-091-093-109-141-147-151-161-189- 193-195-180040- IA . IOWA COUNTIES INCLUDED ARE BUENA VISTA CALHOUN CHEROKEE CLAY DICKINSON EMMET HANCOCK HUMBOLDT IDA KOSSUTH O'BRIEN PALO ALTO POCAHONTAS SAC WINNEBAGO WOODBURY WORTH MNC013-039-043-047-049-079-091-099-109-131-147-157-161-180040- MN . MINNESOTA COUNTIES INCLUDED ARE BLUE EARTH DODGE FARIBAULT FREEBORN GOODHUE LE SUEUR MARTIN MOWER OLMSTED RICE STEELE WABASHA Read more

SPC Severe Thunderstorm Watch 140

4 months 4 weeks ago
WW 140 SEVERE TSTM IA MN NE WI 172045Z - 180300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 140 NWS Storm Prediction Center Norman OK 345 PM CDT Thu Apr 17 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest and Northern Iowa Southern and Southeast Minnesota Far Northeast Nebraska West-Central Wisconsin * Effective this Thursday afternoon and evening from 345 PM until 1000 PM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Scattered thunderstorms are forecast to develop and intensify through the early evening across the Watch area. The stronger storms will be capable of a threat for large to very large hail (1 to 2 inches in diameter) and damaging gusts. Upscale growth into a linear cluster is possible this evening across southern Minnesota as this activity moves east towards the Mississippi River. The severe thunderstorm watch area is approximately along and 65 statute miles east and west of a line from 25 miles northeast of Minneapolis MN to 30 miles south southwest of Storm Lake IA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). 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. && AVIATION...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 450. Mean storm motion vector 25030. ...Smith Read more