MD 2006 CONCERNING SEVERE POTENTIAL...SEVERE THUNDERSTORM WATCH LIKELY FOR MUCH OF CENTRAL WISCONSIN
Mesoscale Discussion 2006 NWS Storm Prediction Center Norman OK 0751 PM CDT Mon Aug 26 2024 Areas affected...much of central Wisconsin Concerning...Severe potential...Severe Thunderstorm Watch likely Valid 270051Z - 270215Z Probability of Watch Issuance...80 percent SUMMARY...The severe threat is increasing across much of central Wisconsin as a damaging-wind-producing MCS approaches the region. A Severe Thunderstorm Watch may be needed in the next hour or so. DISCUSSION...A well-developed, mature MCS with bowing tendencies and a recent history of severe gusts, is approaching western Wisconsin, east of Severe Thunderstorm Watch 651. Preceding the bowing MCS is a corridor of strong to extreme MLCAPE (i.e. 4500-5000 J/kg) and minimal MLCINH. However, vertical wind shear (especially in the low levels) is not particularly strong, which is what is typically needed for intense bow echo wind swaths. Furthermore, while surface temperatures are around 90 F in spots, sunset is approaching, which will support nocturnal cooling and an eventual increase in MLCINH. On balance, at least some risk for continued severe gusts should continue for at least a few more hours as the MCS exceeds the eastern bounds of Severe Thunderstorm Watch 651. As such, a downstream severe thunderstorm watch will likely be needed in the next hour or so. ..Squitieri/Gleason.. 08/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GRB...MKX...DLH...ARX...MPX... LAT...LON 45649155 45549035 45168903 44678795 44228777 43848800 43548837 43588914 43678987 43859058 44009113 44169151 44359171 44569172 45649155 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0756 PM CDT Mon Aug 26 2024 Valid 270100Z - 271200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM SOUTH DAKOTA INTO WESTERN WISCONSIN... ...SUMMARY... Severe thunderstorm wind gusts, large hail, and perhaps a tornado or two, remain possible tonight across parts of South Dakota, northern Nebraska, central/southern Minnesota, and into Wisconsin. ...01z Update... Earlier thoughts regarding the potential for severe thunderstorms remain. Satellite imagery depicts a well-defined short-wave trough located over eastern WY, shifting east in line with latest model guidance. Leading edge of large-scale forcing appears to be contributing to a linear MCS that currently extends from Ziebach-Bennett County SD. This LEWP is surging east along the cool side of a pronounced synoptic front that is draped from southern MN-northern NE. LLJ is forecast to increase into southeast SD later this evening and this should encourage forward propagation after sunset. Isolated storms may linger along the actual wind shift across northeast NE into northwest IA, but the primary concentration of convection should remain along the cool side of the boundary. Downstream, an MCS has matured over eastern MN. This complex is surging toward the MS River and will advance into western WI shortly after 01z. A reservoir of highly unstable air extends across the warm sector from northern IA into central WI, and this should support robust updrafts within a mature MCS as it spreads east this evening. Damaging winds can be expected with this complex. ..Darrow.. 08/27/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0756 PM CDT Mon Aug 26 2024 Valid 270100Z - 271200Z ...THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS FROM SOUTH DAKOTA INTO WESTERN WISCONSIN... ...SUMMARY... Severe thunderstorm wind gusts, large hail, and perhaps a tornado or two, remain possible tonight across parts of South Dakota, northern Nebraska, central/southern Minnesota, and into Wisconsin. ...01z Update... Earlier thoughts regarding the potential for severe thunderstorms remain. Satellite imagery depicts a well-defined short-wave trough located over eastern WY, shifting east in line with latest model guidance. Leading edge of large-scale forcing appears to be contributing to a linear MCS that currently extends from Ziebach-Bennett County SD. This LEWP is surging east along the cool side of a pronounced synoptic front that is draped from southern MN-northern NE. LLJ is forecast to increase into southeast SD later this evening and this should encourage forward propagation after sunset. Isolated storms may linger along the actual wind shift across northeast NE into northwest IA, but the primary concentration of convection should remain along the cool side of the boundary. Downstream, an MCS has matured over eastern MN. This complex is surging toward the MS River and will advance into western WI shortly after 01z. A reservoir of highly unstable air extends across the warm sector from northern IA into central WI, and this should support robust updrafts within a mature MCS as it spreads east this evening. Damaging winds can be expected with this complex. ..Darrow.. 08/27/2024 Read more

WW 0651 Status Updates
STATUS REPORT ON WW 651 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 SSE MKT TO 5 W MSP TO 30 E STC. ..SQUITIERI..08/27/24 ATTN...WFO...MPX... STATUS REPORT FOR WS 651 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC003-025-037-049-059-123-131-163-270240- MN . MINNESOTA COUNTIES INCLUDED ARE ANOKA CHISAGO DAKOTA GOODHUE ISANTI RAMSEY RICE WASHINGTON WIC005-017-033-035-091-093-095-107-109-270240- WI . WISCONSIN COUNTIES INCLUDED ARE BARRON CHIPPEWA DUNN EAU CLAIRE PEPIN PIERCE POLK RUSK ST. CROIX 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 651 SEVERE TSTM MN WI 262215Z - 270400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 651 NWS Storm Prediction Center Norman OK 515 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern and Central Minnesota Western Wisconsin * Effective this Monday afternoon and evening from 515 PM until 1100 PM CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...A small thunderstorm cluster should continue moving east-southeastward this afternoon and evening while posing a threat for mainly severe/damaging winds around 60-70 mph. Isolated significant gusts to 75 mph, along with large hail around 1-2 inches in diameter, may also occur. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 45 miles west northwest of Mankato MN to 80 miles east northeast of Minneapolis MN. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). 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 648...WW 649...WW 650... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28025. ...Gleason Read more

WW 0650 Status Updates
STATUS REPORT ON WW 650 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 WNW TOR TO 20 NNW CDR TO 55 NE CDR TO 25 SW PHP TO 40 SSE Y22. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2005 ..DEAN..08/27/24 ATTN...WFO...BYZ...CYS...LBF...UNR...FSD... STATUS REPORT FOR WS 650 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC013-015-017-031-045-089-103-149-161-165-270140- NE . NEBRASKA COUNTIES INCLUDED ARE BOX BUTTE BOYD BROWN CHERRY DAWES HOLT KEYA PAHA ROCK SHERIDAN SIOUX SDC007-023-053-055-071-095-102-121-123-270140- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE BENNETT CHARLES MIX GREGORY HAAKON JACKSON MELLETTE OGLALA LAKOTA TODD TRIPP THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL Read more

WW 650 SEVERE TSTM MT NE SD WY 262010Z - 270400Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 650 NWS Storm Prediction Center Norman OK 210 PM MDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Montana Northern Nebraska Western and Southern South Dakota Northeast Wyoming * Effective this Monday afternoon and evening from 210 PM until 1000 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph likely Scattered large hail and isolated very large hail events to 2.5 inches in diameter likely A tornado or two possible SUMMARY...Strong to severe thunderstorms including supercells will continue to develop this afternoon across northeast Wyoming/far southeast Montana into western South Dakota, with additional and more isolated development possible along the South Dakota/Nebraska border vicinity. Clusters of eastward-moving storms should evolve by evening, potentially as a severe-wind producing linear convective system that should move across southern South Dakota and northern Nebraska. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 90 miles west of Rapid City SD to 50 miles north northeast of Oneill NE. 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. && OTHER WATCH INFORMATION...CONTINUE...WW 648...WW 649... AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 25030. ...Guyer Read more

WW 0649 Status Updates
STATUS REPORT ON WW 649 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNE RWF TO 20 ESE AXN TO 45 ESE BRD. ..SQUITIERI..08/26/24 ATTN...WFO...DLH...MPX...ABR...FGF... STATUS REPORT FOR WS 649 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC009-065-093-095-141-145-171-270040- MN . MINNESOTA COUNTIES INCLUDED ARE BENTON KANABEC MEEKER MILLE LACS SHERBURNE STEARNS WRIGHT 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 0649 Status Updates
STATUS REPORT ON WW 649 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNE RWF TO 20 ESE AXN TO 45 ESE BRD. ..SQUITIERI..08/26/24 ATTN...WFO...DLH...MPX...ABR...FGF... STATUS REPORT FOR WS 649 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC009-065-093-095-141-145-171-270040- MN . MINNESOTA COUNTIES INCLUDED ARE BENTON KANABEC MEEKER MILLE LACS SHERBURNE STEARNS WRIGHT 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 0652 Status Updates
STATUS REPORT ON WW 652 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..SQUITIERI..08/26/24 ATTN...WFO...FSD...OAX... STATUS REPORT FOR WS 652 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC021-035-041-059-093-119-141-143-149-167-193-270040- IA . IOWA COUNTIES INCLUDED ARE BUENA VISTA CHEROKEE CLAY DICKINSON IDA LYON O'BRIEN OSCEOLA PLYMOUTH SIOUX WOODBURY MNC033-063-105-270040- MN . MINNESOTA COUNTIES INCLUDED ARE COTTONWOOD JACKSON NOBLES NEC003-027-043-051-107-139-173-179-270040- NE . NEBRASKA COUNTIES INCLUDED ARE ANTELOPE CEDAR DAKOTA DIXON KNOX PIERCE Read more

WW 0652 Status Updates
STATUS REPORT ON WW 652 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..SQUITIERI..08/26/24 ATTN...WFO...FSD...OAX... STATUS REPORT FOR WS 652 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC021-035-041-059-093-119-141-143-149-167-193-270040- IA . IOWA COUNTIES INCLUDED ARE BUENA VISTA CHEROKEE CLAY DICKINSON IDA LYON O'BRIEN OSCEOLA PLYMOUTH SIOUX WOODBURY MNC033-063-105-270040- MN . MINNESOTA COUNTIES INCLUDED ARE COTTONWOOD JACKSON NOBLES NEC003-027-043-051-107-139-173-179-270040- NE . NEBRASKA COUNTIES INCLUDED ARE ANTELOPE CEDAR DAKOTA DIXON KNOX PIERCE Read more

MD 2001 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR PORTIONS OF FAR NORTHEAST NEBRASKA...SOUTHEAST SOUTH DAKOTA...SOUTHWEST TO CENTRAL MINNESOTA...NORTHWEST IOWA
Mesoscale Discussion 2001 NWS Storm Prediction Center Norman OK 0439 PM CDT Mon Aug 26 2024 Areas affected...portions of far northeast Nebraska...southeast South Dakota...southwest to central Minnesota...northwest Iowa Concerning...Severe potential...Watch possible Valid 262139Z - 262315Z Probability of Watch Issuance...60 percent SUMMARY...The severe threat may increase over the next few hours. Severe wind and hail would be the main threats, though a couple of tornadoes could not be ruled out. Convective trends are being monitored for the need of a WW issuance. DISCUSSION...Convective outflow from earlier storms has sagged southeast along the periphery of strong to extreme instability (characterized by 4000-5000 J/kg MLCAPE), but modest remaining MLCINH. Forcing along this baroclinic boundary is not overly strong, yet satellite and MRMS mosaic radar data depict attempts at convective initiation just east of the SD/MN over the past hour or so. Should storms develop, mature, and sustain themselves, 30-40 kts of effective bulk shear overlapping this extreme instability will support initial supercell structures with significant severe wind and hail a concern. Given the extreme buoyancy and presence of one or more boundaries, a couple of tornadoes also cannot be ruled out if supercells can anchor on the boundary and ingest locally higher SRH. If storms develop and cold pool mergers occur, bowing segments capable of producing focused corridors of severe gusts is also possible. Nonetheless, given weak forcing, it is unclear if storms can become sustained and more widespread. Convective trends will continue to be monitored for the need of a WW issuance. ..Squitieri/Gleason.. 08/26/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MPX...DMX...FSD...OAX...LBF... LAT...LON 42419887 43299739 44069647 44709545 45649370 45579293 45079266 44549261 43229466 42919535 42579616 42409678 42349781 42419887 Read more

MD 2002 CONCERNING SEVERE THUNDERSTORM WATCH 650... FOR WESTERN SD INTO THE NORTHERN NE PANHANDLE
Mesoscale Discussion 2002 NWS Storm Prediction Center Norman OK 0451 PM CDT Mon Aug 26 2024 Areas affected...Western SD into the northern NE Panhandle Concerning...Severe Thunderstorm Watch 650... Valid 262151Z - 262315Z The severe weather threat for Severe Thunderstorm Watch 650 continues. SUMMARY...Threat for severe gusts, hail, and possibly a tornado will spread eastward through late afternoon. DISCUSSION...A storm cluster is becoming increasingly well organized this afternoon from the Black Hills vicinity to near the NE/SD border, immediately in advance of a seasonably strong shortwave trough moving across northern WY/southern MT. While the mode has already become primarily linear, MLCAPE of 500-1500 J/kg (greater with southward extent) and strong deep-layer shear will continue to support embedded supercell structures. As this developing QLCS moves eastward, it will be accompanied by a threat of severe gusts, with some increasing threat for significant gusts (greater than 75 mph) if continued upscale growth occurs. Hail (locally in excess of 2 inches in diameter) and possibly a tornado will also be possible with embedded supercells, especially along the southern portion of the QLCS, where instability is stronger and the line will intersect a nearly stationary surface boundary near the NE/SD border. ..Dean.. 08/26/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LBF...UNR...CYS... LAT...LON 44670401 44650297 44350204 43900170 43210161 42670184 42400218 42260262 42130320 42120394 42430392 42960376 43300366 43610359 43890360 44670401 Read more

SPC Day 3-8 Fire Weather Outlook
Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0436 PM CDT Mon Aug 26 2024 Valid 281200Z - 031200Z A compact midlevel low, accompanied by strong deep-layer west-southwesterly flow, will advance eastward across the Montana/Canadian border on Day 3/Wednesday. This will promote strong surface winds across portions of the northern/central Rockies and adjacent High Plains -- in the vicinity of a related cold front. As a result, locally elevated fire-weather conditions will be possible over portions of Montana and Wyoming; however, a limited overlap of the strong winds/low RH and/or marginal fuels limit confidence in the potential for critical conditions -- precluding probabilities at this time. As the midlevel low continues eastward on Day 4/Thursday, strong post-frontal winds will overspread the northern Plains. Similarly, marginal fuels and a limited overlap with low RH should mitigate the overall fire-weather risk. Late in the extended forecast period (around Days 7-8/Sunday -Monday), medium-range guidance is in reasonably good agreement, depicting an upper low moving ashore over the Pacific Northwest. Associated ascent and midlevel moisture overspreading the Cascades and areas east may favor a dry thunderstorm risk. With that said, Dry Thunderstorm probabilities have been withheld for now, given lingering uncertainties on overall timing/evolution of the upper low and fuel receptiveness. ..Weinman.. 08/26/2024 ...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 0436 PM CDT Mon Aug 26 2024 Valid 281200Z - 031200Z A compact midlevel low, accompanied by strong deep-layer west-southwesterly flow, will advance eastward across the Montana/Canadian border on Day 3/Wednesday. This will promote strong surface winds across portions of the northern/central Rockies and adjacent High Plains -- in the vicinity of a related cold front. As a result, locally elevated fire-weather conditions will be possible over portions of Montana and Wyoming; however, a limited overlap of the strong winds/low RH and/or marginal fuels limit confidence in the potential for critical conditions -- precluding probabilities at this time. As the midlevel low continues eastward on Day 4/Thursday, strong post-frontal winds will overspread the northern Plains. Similarly, marginal fuels and a limited overlap with low RH should mitigate the overall fire-weather risk. Late in the extended forecast period (around Days 7-8/Sunday -Monday), medium-range guidance is in reasonably good agreement, depicting an upper low moving ashore over the Pacific Northwest. Associated ascent and midlevel moisture overspreading the Cascades and areas east may favor a dry thunderstorm risk. With that said, Dry Thunderstorm probabilities have been withheld for now, given lingering uncertainties on overall timing/evolution of the upper low and fuel receptiveness. ..Weinman.. 08/26/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

WW 0648 Status Updates
STATUS REPORT ON WW 648 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ENE RUT TO 5 SE EEN TO 80 ESE PSM. ..THORNTON..08/26/24 ATTN...WFO...OKX...BOX...ALY...GYX... STATUS REPORT FOR WS 648 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS CTC001-003-005-007-009-011-013-015-262240- CT . CONNECTICUT COUNTIES INCLUDED ARE FAIRFIELD HARTFORD LITCHFIELD MIDDLESEX NEW HAVEN NEW LONDON TOLLAND WINDHAM MAC001-003-005-007-009-011-013-015-017-019-021-023-025-027- 262240- MA . MASSACHUSETTS COUNTIES INCLUDED ARE BARNSTABLE BERKSHIRE BRISTOL DUKES ESSEX FRANKLIN HAMPDEN HAMPSHIRE MIDDLESEX NANTUCKET NORFOLK PLYMOUTH SUFFOLK WORCESTER NHC005-262240- Read more

WW 0648 Status Updates
STATUS REPORT ON WW 648 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ENE RUT TO 5 SE EEN TO 80 ESE PSM. ..THORNTON..08/26/24 ATTN...WFO...OKX...BOX...ALY...GYX... STATUS REPORT FOR WS 648 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS CTC001-003-005-007-009-011-013-015-262240- CT . CONNECTICUT COUNTIES INCLUDED ARE FAIRFIELD HARTFORD LITCHFIELD MIDDLESEX NEW HAVEN NEW LONDON TOLLAND WINDHAM MAC001-003-005-007-009-011-013-015-017-019-021-023-025-027- 262240- MA . MASSACHUSETTS COUNTIES INCLUDED ARE BARNSTABLE BERKSHIRE BRISTOL DUKES ESSEX FRANKLIN HAMPDEN HAMPSHIRE MIDDLESEX NANTUCKET NORFOLK PLYMOUTH SUFFOLK WORCESTER NHC005-262240- Read more

WW 648 SEVERE TSTM CT MA NH NY RI VT CW 261705Z - 262300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 648 NWS Storm Prediction Center Norman OK 105 PM EDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Connecticut Massachusetts Southern New Hampshire Southeast New York Rhode Island Southern Vermont Coastal Waters * Effective this Monday afternoon and evening from 105 PM until 700 PM EDT. * Primary threats include... Scattered damaging wind gusts to 65 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Scattered thunderstorms will continue to develop and intensify as they generally move south-southeastward through the afternoon, with the strongest storms capable of hail and locally damaging winds. The severe thunderstorm watch area is approximately along and 75 statute miles east and west of a line from 25 miles north northeast of Keene NH to 25 miles south of Groton CT. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). 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 1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 35025. ...Guyer Read more

WW 0649 Status Updates
STATUS REPORT ON WW 649 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..THORNTON..08/26/24 ATTN...WFO...DLH...MPX...ABR...FGF... STATUS REPORT FOR WS 649 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC001-009-011-021-023-035-041-051-065-067-073-093-095-097-111- 121-141-145-149-151-153-155-159-167-171-173-262240- MN . MINNESOTA COUNTIES INCLUDED ARE AITKIN BENTON BIG STONE CASS CHIPPEWA CROW WING DOUGLAS GRANT KANABEC KANDIYOHI LAC QUI PARLE MEEKER MILLE LACS MORRISON OTTER TAIL POPE SHERBURNE STEARNS STEVENS SWIFT TODD TRAVERSE WADENA WILKIN WRIGHT YELLOW MEDICINE NDC077-262240- ND . NORTH DAKOTA COUNTIES INCLUDED ARE RICHLAND THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE Read more

WW 649 SEVERE TSTM MN ND 261940Z - 270200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 649 NWS Storm Prediction Center Norman OK 240 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central Minnesota Southeast North Dakota * Effective this Monday afternoon and evening from 240 PM until 900 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 A tornado or two possible SUMMARY...Scattered strong to severe thunderstorms should continue to develop across far southeast North Dakota into central Minnesota, where the air mass continues to become very unstable. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 25 miles north northwest of Ortonville MN to 35 miles northeast of Saint Cloud MN. 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 648... 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 500. Mean storm motion vector 28025. ...Guyer Read more