SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0218 AM CDT Tue Aug 27 2024 Valid 291200Z - 301200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF VIRGINIA AND THE CAROLINAS...AND FROM THE UPPER MISSISSIPPI VALLEY TO THE CENTRAL PLAINS... ...SUMMARY... A few strong to severe storms will be possible over portions of Virginia and the Carolinas, and across parts of the Upper Mississippi Valley/Upper Midwest into the central Plains on Thursday. ...Synopsis... As an upper trough moves out of the Northeast and into the northern Atlantic, a surface cold front is forecast to backdoor southward across southern Virginia and the Carolinas with time. Meanwhile, an upstream mid/upper-level trough will move across the Canadian Prairie and Plains states through the period. Accompanying this trough, a surface cold front will shift eastward/southeastward with time, and should arc from the Upper Mississippi Valley vicinity south-southwestward and then west-southwestward to the southeastern Colorado area by Friday morning. ...Southern Virginia to northern South Carolina... As a trailing cold front shifts southward across the Mid-Atlantic region and eventually into the Carolinas, daytime heating will support moderate destabilization across parts of southern Virginia and into the Carolinas. While a gradual increase in large-scale upper ridging will be underway in the wake of the departing upper trough, isolated storm development will be possible during the afternoon, near the sagging front and over the higher terrain. Though flow aloft will remain weak, weak veering with height may combine with ample mixed-layer CAPE to support a few stronger storms, and accompanying, marginal severe risk locally. Risk should diminish by early evening, as storms diurnally decrease. ...Minnesota to northern Kansas... Moderate afternoon destabilization is forecast ahead of the advancing cold front across the Upper Midwest, aided by ample daytime heating. While the strongest flow aloft should remain to the cool side of the boundary, ample shear atop the frontal zone should support isolated stronger storms. As such, attendant risks for large hail and damaging gusts will accompany the most vigorous updrafts, into the evening hours. A few stronger storms may develop southwestward along the front into the central Plains, where weaker instability/shear are expected. Still, marginal hail and a locally strong gust or two cannot be ruled out into the early evening hours. ..Goss.. 08/27/2024 Read more

SPC 0730Z Day 3 Outlook
Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0218 AM CDT Tue Aug 27 2024 Valid 291200Z - 301200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF VIRGINIA AND THE CAROLINAS...AND FROM THE UPPER MISSISSIPPI VALLEY TO THE CENTRAL PLAINS... ...SUMMARY... A few strong to severe storms will be possible over portions of Virginia and the Carolinas, and across parts of the Upper Mississippi Valley/Upper Midwest into the central Plains on Thursday. ...Synopsis... As an upper trough moves out of the Northeast and into the northern Atlantic, a surface cold front is forecast to backdoor southward across southern Virginia and the Carolinas with time. Meanwhile, an upstream mid/upper-level trough will move across the Canadian Prairie and Plains states through the period. Accompanying this trough, a surface cold front will shift eastward/southeastward with time, and should arc from the Upper Mississippi Valley vicinity south-southwestward and then west-southwestward to the southeastern Colorado area by Friday morning. ...Southern Virginia to northern South Carolina... As a trailing cold front shifts southward across the Mid-Atlantic region and eventually into the Carolinas, daytime heating will support moderate destabilization across parts of southern Virginia and into the Carolinas. While a gradual increase in large-scale upper ridging will be underway in the wake of the departing upper trough, isolated storm development will be possible during the afternoon, near the sagging front and over the higher terrain. Though flow aloft will remain weak, weak veering with height may combine with ample mixed-layer CAPE to support a few stronger storms, and accompanying, marginal severe risk locally. Risk should diminish by early evening, as storms diurnally decrease. ...Minnesota to northern Kansas... Moderate afternoon destabilization is forecast ahead of the advancing cold front across the Upper Midwest, aided by ample daytime heating. While the strongest flow aloft should remain to the cool side of the boundary, ample shear atop the frontal zone should support isolated stronger storms. As such, attendant risks for large hail and damaging gusts will accompany the most vigorous updrafts, into the evening hours. A few stronger storms may develop southwestward along the front into the central Plains, where weaker instability/shear are expected. Still, marginal hail and a locally strong gust or two cannot be ruled out into the early evening hours. ..Goss.. 08/27/2024 Read more

WW 0654 Status Updates
STATUS REPORT ON WW 654 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 N OFK TO 10 E YKN TO 25 W FSD TO 35 WSW BKX. ..BENTLEY..08/27/24 ATTN...WFO...FSD...LBF...OAX... STATUS REPORT FOR WS 654 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC035-041-059-119-141-143-149-167-270740- IA . IOWA COUNTIES INCLUDED ARE CHEROKEE CLAY DICKINSON LYON O'BRIEN OSCEOLA PLYMOUTH SIOUX MNC033-063-081-083-101-105-117-133-270740- MN . MINNESOTA COUNTIES INCLUDED ARE COTTONWOOD JACKSON LINCOLN LYON MURRAY NOBLES PIPESTONE ROCK NEC027-051-270740- NE . NEBRASKA COUNTIES INCLUDED ARE Read more

WW 654 SEVERE TSTM IA MN NE SD 270355Z - 271100Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 654 NWS Storm Prediction Center Norman OK 1055 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest Iowa Southwest Minnesota Northern Nebraska Southeast South Dakota * Effective this Monday night and Tuesday morning from 1055 PM until 600 AM 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...Mainly elevated thunderstorms should pose some threat for severe hail up to 1-2 inches in diameter as they move generally east-northeastward through the overnight hours. If these thunderstorms can consolidate into a cluster, then a threat for severe/damaging winds around 60-70 mph may be realized. The severe thunderstorm watch area is approximately along and 50 statute miles north and south of a line from 10 miles southwest of Valentine NE to 25 miles north northeast of Spencer IA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU4). 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 650...WW 651...WW 653... 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 26035. ...Gleason Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0145 AM CDT Tue Aug 27 2024 Valid 281200Z - 291200Z ...NO CRITICAL AREAS... ...Synopsis... A pronounced mid-level trough will traverse the Northern Rockies and eject into the northern High Plains tomorrow (Wednesday), supporting robust surface lee troughing across the northern Plains states. Strong isallobaric flow is thus expected over portions of the northern and central Rockies, particularly eastern Montana, as well as central into eastern Wyoming. In both areas, sustained west-southwesterly surface winds exceeding 20 mph amid 15-25 percent RH are expected during the afternoon. Such conditions typically necessitate at least Elevated to perhaps Critical highlights. However, fuel receptiveness in these regions is marginal at best, especially considering rainfall over the past week. As such, fire weather highlights have been withheld this outlook. ..Squitieri.. 08/27/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0145 AM CDT Tue Aug 27 2024 Valid 281200Z - 291200Z ...NO CRITICAL AREAS... ...Synopsis... A pronounced mid-level trough will traverse the Northern Rockies and eject into the northern High Plains tomorrow (Wednesday), supporting robust surface lee troughing across the northern Plains states. Strong isallobaric flow is thus expected over portions of the northern and central Rockies, particularly eastern Montana, as well as central into eastern Wyoming. In both areas, sustained west-southwesterly surface winds exceeding 20 mph amid 15-25 percent RH are expected during the afternoon. Such conditions typically necessitate at least Elevated to perhaps Critical highlights. However, fuel receptiveness in these regions is marginal at best, especially considering rainfall over the past week. As such, fire weather highlights have been withheld this outlook. ..Squitieri.. 08/27/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0144 AM CDT Tue Aug 27 2024 Valid 271200Z - 281200Z ...Synopsis... A mid-level trough will amplify while traversing the northwestern U.S. today, encouraging strong surface lee troughing over the northern Rockies. In turn, strong and dry downslope flow is anticipated to the lee of the Cascades, where surface meteorological conditions will be conducive to wildfire spread. By afternoon, 15-20 mph sustained westerly surface winds will coincide with 15-25 percent RH for at least a few hours in the Columbia Basin in eastern Washington. Fuels experiencing these dry and windy meteorological conditions will be modestly receptive to wildfire spread, warranting Elevated highlights. ..Squitieri.. 08/27/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 1 Fire Weather Outlook
Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0144 AM CDT Tue Aug 27 2024 Valid 271200Z - 281200Z ...Synopsis... A mid-level trough will amplify while traversing the northwestern U.S. today, encouraging strong surface lee troughing over the northern Rockies. In turn, strong and dry downslope flow is anticipated to the lee of the Cascades, where surface meteorological conditions will be conducive to wildfire spread. By afternoon, 15-20 mph sustained westerly surface winds will coincide with 15-25 percent RH for at least a few hours in the Columbia Basin in eastern Washington. Fuels experiencing these dry and windy meteorological conditions will be modestly receptive to wildfire spread, warranting Elevated highlights. ..Squitieri.. 08/27/2024 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

WW 0653 Status Updates
STATUS REPORT ON WW 653 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 S OSH TO 20 ENE OSH TO 15 E GRB TO 40 NNE GRB TO 25 SSE IMT TO 15 NNE IMT. ..BENTLEY..08/27/24 ATTN...WFO...ARX...DLH...GRB...MKX... STATUS REPORT FOR WS 653 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS WIC029-039-047-061-071-077-117-270740- WI . WISCONSIN COUNTIES INCLUDED ARE DOOR FOND DU LAC GREEN LAKE KEWAUNEE MANITOWOC MARQUETTE SHEBOYGAN LMZ521-541-542-543-563-565-567-643-669-270740- CW . ADJACENT COASTAL WATERS INCLUDED ARE GREEN BAY SOUTH OF LINE FROM CEDAR RIVER TO ROCK ISLAND PASSAGE AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI ROCK ISLAND PASSAGE TO STURGEON BAY WI STURGEON BAY TO TWO RIVERS WI TWO RIVERS TO SHEBOYGAN WI Read more

WW 653 SEVERE TSTM MN WI LM 270140Z - 270900Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 653 NWS Storm Prediction Center Norman OK 840 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Minnesota Northern and Central Wisconsin Lake Michigan * Effective this Monday night and Tuesday morning from 840 PM until 400 AM CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A bowing complex of thunderstorms should continue to pose a threat for mainly severe/damaging winds around 60-70 mph as it moves east-southeastward this evening and overnight. The severe thunderstorm watch area is approximately along and 70 statute miles north and south of a line from 85 miles west northwest of Wausau WI to 40 miles northeast of Manitowoc WI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). 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 650...WW 651... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 28035. ...Gleason Read more

SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0108 AM CDT Tue Aug 27 2024 Valid 281200Z - 291200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM THE UPPER OHIO VALLEY TO THE MID-ATLANTIC REGION...AND OVER PARTS OF THE NORTHERN PLAINS... ...SUMMARY... Severe storms are expected across portions of the Midwest and Northeast/Mid-Atlantic area, and over portions of the northern Plains. ...Synopsis... Mid-level short-wave troughing will move across the Great Lakes region Wednesday, gradually becoming absorbed within the southern extent of larger-scale troughing moving across eastern Canada. As such, gradual/steady height falls will occur across the Northeast through the period. Upstream, a strong upper low will advance across the Canadian Prairie and adjacent northern Intermountain Region. At the surface, a cold front should move off the New England coast early, leaving a trailing, west-to-east boundary extending from the Mid-Atlantic region into the Midwest. Meanwhile, a cold front will move across the northern High Plains and into the Dakotas/western Nebraska with time, ahead of the upper low. Both of these fronts will focus convective development and some severe risk -- particularly from afternoon onward. ...Midwest to the Mid-Atlantic vicinity... Substantial uncertainty persists across the Northeast U.S. in terms of severe potential on Wednesday, with ongoing convection -- and possibly some remnant low-end severe risk -- moving across parts of the Northeast. With the cold front expected to be moving offshore of New England early, primary severe risk should reside within a west-to-east corridor near the surface front, extending westward into the Midwest region. As height falls continue across the region, episodes of thunderstorm development can be expected within this corridor through much of the period. Primary risks will be locally damaging gusts and hail. Beyond this general assessment, a more detailed evolution remains difficult to discern at this time, and thus areal adjustments can be expected with subsequent outlooks. ...Northern Plains... Afternoon destabilization is forecast across the northern Plains states, ahead of the advancing cold front. As large-scale ascent increases through late afternoon, isolated storm development is expected over the western Dakotas. With mid-level southwesterlies increasing ahead of the trough, atop low-level southeasterlies, resulting shear will support storm organization -- including supercells. Large hail and locally damaging gusts will be the primary risks. As a southerly low-level jet develops across the Plains during the evening, an increase in storm coverage -- including potential for some evolution toward an MCS -- is expected. As such -- risk for hail/wind will likely continue through the evening and possibly into the overnight hours. ..Goss.. 08/27/2024 Read more

SPC 0600Z Day 2 Outlook
Day 2 Convective Outlook NWS Storm Prediction Center Norman OK 0108 AM CDT Tue Aug 27 2024 Valid 281200Z - 291200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM THE UPPER OHIO VALLEY TO THE MID-ATLANTIC REGION...AND OVER PARTS OF THE NORTHERN PLAINS... ...SUMMARY... Severe storms are expected across portions of the Midwest and Northeast/Mid-Atlantic area, and over portions of the northern Plains. ...Synopsis... Mid-level short-wave troughing will move across the Great Lakes region Wednesday, gradually becoming absorbed within the southern extent of larger-scale troughing moving across eastern Canada. As such, gradual/steady height falls will occur across the Northeast through the period. Upstream, a strong upper low will advance across the Canadian Prairie and adjacent northern Intermountain Region. At the surface, a cold front should move off the New England coast early, leaving a trailing, west-to-east boundary extending from the Mid-Atlantic region into the Midwest. Meanwhile, a cold front will move across the northern High Plains and into the Dakotas/western Nebraska with time, ahead of the upper low. Both of these fronts will focus convective development and some severe risk -- particularly from afternoon onward. ...Midwest to the Mid-Atlantic vicinity... Substantial uncertainty persists across the Northeast U.S. in terms of severe potential on Wednesday, with ongoing convection -- and possibly some remnant low-end severe risk -- moving across parts of the Northeast. With the cold front expected to be moving offshore of New England early, primary severe risk should reside within a west-to-east corridor near the surface front, extending westward into the Midwest region. As height falls continue across the region, episodes of thunderstorm development can be expected within this corridor through much of the period. Primary risks will be locally damaging gusts and hail. Beyond this general assessment, a more detailed evolution remains difficult to discern at this time, and thus areal adjustments can be expected with subsequent outlooks. ...Northern Plains... Afternoon destabilization is forecast across the northern Plains states, ahead of the advancing cold front. As large-scale ascent increases through late afternoon, isolated storm development is expected over the western Dakotas. With mid-level southwesterlies increasing ahead of the trough, atop low-level southeasterlies, resulting shear will support storm organization -- including supercells. Large hail and locally damaging gusts will be the primary risks. As a southerly low-level jet develops across the Plains during the evening, an increase in storm coverage -- including potential for some evolution toward an MCS -- is expected. As such -- risk for hail/wind will likely continue through the evening and possibly into the overnight hours. ..Goss.. 08/27/2024 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1238 AM CDT Tue Aug 27 2024 Valid 271200Z - 281200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS THE GREAT LAKES AND PORTIONS OF THE MIDWEST... ...SUMMARY... Severe thunderstorms are possible across the Great Lakes region and portions of the Midwest. A lower risk for a few strong/severe storms will extend southwest across the lower Missouri Valley into northern Kansas. ...Great Lakes/Midwest... Seasonally strong short-wave trough is advancing into the northern High Plains early this morning. This feature is forecast to shift into the eastern Dakotas by 18z as a 500mb speed max translates across southern MN. Gradual deamplification is expected during the latter half of the period as the short wave ejects across the upper Great Lakes. At the surface, primary synoptic boundary is forecast to extend across the eastern U.P. of MI-central WI-central IA-southern NE at the start of the period. Westerly flow will deepen across the Great Lakes region by midday, and this will encourage the surface front to shift downstream as west-southwesterly LLJ strengthens across southern WI/Lower MI. Long-lived, mature MCS is currently propagating across northern/central WI, in line with latest HREF guidance. This complex of storms will track across northern Lake MI into Lower MI later this morning as it turns southeast. Convective outflow will likely influence subsequent thunderstorm development ahead of the short wave/surface front. Latest thinking is modest boundary-layer heating will extend across northern IL into extreme southern WI, east into the northern OH Valley region. This will be the northern extent of a very unstable airmass which should support afternoon thunderstorm development/intensification. It's not entirely clear where the early-day outflow will establish itself, and uncertainty necessitates some caution trying to focus higher severe probabilities. Even so, there may be a need to expand SLGT risk a bit south if the boundary advances further than currently expected. Severe gusts and hail are the primary risks with convection today. Farther southwest across the lower MO Valley into northern Kansas, very strong surface heating will negate CINH and convective temperatures will be easily breached as readings rise through the mid 90s. Isolated-scattered thunderstorms may focus along the synoptic front, though this activity will evolve within a vertical wind profile that is fairly weak and supports mostly pulse to multicell updrafts. In the absence of any short-wave trough, surface heating will prove instrumental in thunderstorm development, and the lack of a strong LLJ may also be a limiting factor in upscale growth. ..Darrow/Squitieri.. 08/27/2024 Read more

MD 2009 CONCERNING SEVERE THUNDERSTORM WATCH 653... FOR PORTIONS OF CENTRAL INTO EASTERN WISCONSIN AND WESTERN UPPER MICHIGAN
Mesoscale Discussion 2009 NWS Storm Prediction Center Norman OK 1111 PM CDT Mon Aug 26 2024 Areas affected...portions of central into eastern Wisconsin and western Upper Michigan Concerning...Severe Thunderstorm Watch 653... Valid 270411Z - 270515Z The severe weather threat for Severe Thunderstorm Watch 653 continues. SUMMARY...The severe threat continues in and near Severe Thunderstorm Watch 653. Damaging wind gusts are the main threat, and this threat should persist for at least a few more hours. DISCUSSION...A mature MCS with a history of strong, damaging gusts continues to progress eastward over central WI. Given nocturnal cooling, temperatures are dropping into the 75-80F range, suggesting that MLCINH should be on the increase ahead of the MCS. While this may dampen wind damage potential to some degree, at least some threat for damaging gusts should continue for at least a few more hours given 3000-4000 J/kg MLCAPE preceding the line. ..Squitieri.. 08/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MQT...GRB...MKX...DLH...ARX... LAT...LON 46178996 46448979 46458927 46348845 46108776 45648732 44978720 44408728 43998750 43908797 43938859 44018925 44098958 44318974 44658968 44928962 45538968 46178996 Read more

WW 0654 Status Updates
STATUS REPORT ON WW 654 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..DEAN..08/27/24 ATTN...WFO...FSD...LBF...OAX... STATUS REPORT FOR WS 654 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC035-041-059-119-141-143-149-167-270540- IA . IOWA COUNTIES INCLUDED ARE CHEROKEE CLAY DICKINSON LYON O'BRIEN OSCEOLA PLYMOUTH SIOUX MNC033-063-081-083-101-105-117-133-270540- MN . MINNESOTA COUNTIES INCLUDED ARE COTTONWOOD JACKSON LINCOLN LYON MURRAY NOBLES PIPESTONE ROCK NEC015-017-027-031-051-089-103-107-149-270540- NE . NEBRASKA COUNTIES INCLUDED ARE BOYD BROWN CEDAR Read more

WW 0653 Status Updates
STATUS REPORT ON WW 653 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NW VOK TO 25 WNW CWA TO 30 W RHI TO 20 WSW IWD. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2009 ..SQUITIERI..08/27/24 ATTN...WFO...ARX...DLH...GRB...MKX... STATUS REPORT FOR WS 653 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS WIC001-003-009-015-029-037-039-041-047-051-057-061-067-069-071- 073-075-077-078-081-083-085-087-097-115-117-125-135-137-139-141- 270540- WI . WISCONSIN COUNTIES INCLUDED ARE ADAMS ASHLAND BROWN CALUMET DOOR FLORENCE FOND DU LAC FOREST GREEN LAKE IRON JUNEAU KEWAUNEE LANGLADE LINCOLN MANITOWOC MARATHON MARINETTE MARQUETTE MENOMINEE MONROE OCONTO ONEIDA OUTAGAMIE PORTAGE SHAWANO SHEBOYGAN VILAS WAUPACA WAUSHARA WINNEBAGO WOOD LMZ521-522-541-542-543-563-565-567-643-669-270540- CW Read more

WW 0650 Status Updates
STATUS REPORT ON WW 650 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NNW TOR TO 50 SSW PHP TO 15 S PHP TO 30 SW PIR. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2008 ..DEAN..08/27/24 ATTN...WFO...BYZ...CYS...LBF...UNR...FSD... STATUS REPORT FOR WS 650 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC013-015-017-031-045-089-103-149-161-165-270440- NE . NEBRASKA COUNTIES INCLUDED ARE BOX BUTTE BOYD BROWN CHERRY DAWES HOLT KEYA PAHA ROCK SHERIDAN SIOUX SDC007-023-053-071-095-121-123-270440- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE BENNETT CHARLES MIX GREGORY JACKSON MELLETTE TODD TRIPP THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL Read more

WW 0650 Status Updates
STATUS REPORT ON WW 650 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NNW TOR TO 50 SSW PHP TO 15 S PHP TO 30 SW PIR. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 2008 ..DEAN..08/27/24 ATTN...WFO...BYZ...CYS...LBF...UNR...FSD... STATUS REPORT FOR WS 650 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC013-015-017-031-045-089-103-149-161-165-270440- NE . NEBRASKA COUNTIES INCLUDED ARE BOX BUTTE BOYD BROWN CHERRY DAWES HOLT KEYA PAHA ROCK SHERIDAN SIOUX SDC007-023-053-071-095-121-123-270440- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE BENNETT CHARLES MIX GREGORY JACKSON MELLETTE TODD TRIPP THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL Read more

WW 0651 Status Updates
STATUS REPORT ON WW 651 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 N RST TO 40 NW EAU TO 65 S DLH. WW 651 WILL BE ALLOWED TO EXPIRE AT 270400Z. ..SQUITIERI..08/27/24 ATTN...WFO...MPX... STATUS REPORT FOR WS 651 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS WIC005-017-033-035-091-107-270400- WI . WISCONSIN COUNTIES INCLUDED ARE BARRON CHIPPEWA DUNN EAU CLAIRE PEPIN RUSK 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

MD 2005 CONCERNING SEVERE THUNDERSTORM WATCH 650... FOR SOUTHWEST/SOUTH-CENTRAL SD INTO NORTHWEST/NORTH-CENTRAL NE
Mesoscale Discussion 2005 NWS Storm Prediction Center Norman OK 0701 PM CDT Mon Aug 26 2024 Areas affected...Southwest/south-central SD into northwest/north-central NE Concerning...Severe Thunderstorm Watch 650... Valid 270001Z - 270130Z The severe weather threat for Severe Thunderstorm Watch 650 continues. SUMMARY...The threat for severe gusts, hail, and possibly a tornado will continue eastward through the evening. DISCUSSION...A QLCS with embedded supercell structures has produced occasional severe wind and hail reports as it moves eastward. Recent VWP data from KUDX suggests the presence of a rear-inflow jet, and a combination of sufficient instability and rather strong deep-layer shear will help to maintain this QLCS as it moves eastward this evening. Embedded supercells will remain possible along the southern flank of the QLCS, with some additional development possible into northwest/north-central NE. The threat for severe gusts will continue to accompany this QLCS as it moves eastward this evening, along with a threat of hail and possibly a tornado with any embedded supercells. The northern extent of the severe threat into central SD remains in question, due to cooler/more-stable conditions and stronger MLCINH in the wake of an outflow-reinforced surface front. This renders the need for a watch north of WW 650 uncertain, though some threat for strong to locally severe gusts cannot be ruled out into central SD, given the relatively organized nature of the QLCS. ..Dean/Gleason.. 08/27/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FSD...ABR...LBF...UNR... LAT...LON 44380217 44210079 44110016 43879946 43449914 42909923 42569948 42259979 42200081 42290194 42510254 42720257 43370230 44380217 Read more