Severe Storms

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Mon Jun 30 2025 Valid 301200Z - 011200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE SOUTHERN PLAINS MIDWEST AND MID ATLANTIC AS WELL AS THE NORTHWEST... ...SUMMARY... Scattered strong to severe thunderstorms remain possible across parts of the southern Plains, Ohio Valley, Midwest and the Mid-Atlantic today. A couple of severe thunderstorms also cannot be ruled out over parts of the Pacific Northwest. ...Synopsis... A broad upper trough is forecast to intensify as it moves southeastward across the Great Lakes and Midwest through tonight. At the same time, sub-tropical ridging will build over the Plains, keeping stronger flow aloft displaced to the north. To the west of the ridge, an upper low will overspread portions of the West Coast. At the surface, a weak cold front will sag southward from the Midwest to the southern Plains. Numerous thunderstorms are likely ahead of the front with isolated damaging gusts and hail possible. ...Midwest and Great lakes... Ahead of the slow-moving cold front, rich low-level moisture with dewpoints in the 70s F will be in place from MO/IL into Lower MI. A messy surface pattern, with multiple remnant outflows and cloud debris will likely modulate diurnal heating to some degree through the early afternoon. With little inhibition, scattered to numerous thunderstorms are expected by mid afternoon as ascent from the approaching upper trough overspreads the unstable air mass. Several loosely organized bands or clusters of strong pulse storms are likely. Weak mid-level flow and poor lapse rates suggests minimal potential for greater storm organization. Though high PWATS near 2 inches will support heavy water loading and microburst potential, with the stronger storms. ...OH valley to the Mid Atlantic... A similar pattern to the Midwest, with somewhat higher storm coverage, is expected from OH eastward into PA and the Mid Atlantic. Scattered to numerous thunderstorms should develop by late morning amid strong surface heating ahead of a subtle shortwave trough over the OH valley. 20-30 kt of mid-level flow could support some clustering of storms by early afternoon. Despite mediocre mid-level lapse rates less than 6 C/km, the high PWAT air mass and some consolidation of outflows could support isolated damaging wind potential across eastern OH, southern NY into PA and the Mid Atlantic states. ...Southern Plains to the Ozarks... Scattered thunderstorms should develop by mid afternoon ahead of sagging cold front from the TX Panhandle across the southern Plains and western Ozarks. Beneath the northern fringes of the building sub tropical high, strong heating and rich boundary-layer moisture will support large buoyancy (MLCAPE (3000-4000 J/kg). Scattered thunderstorm development is likely ahead of the front, and along remnant outflows from overnight convection. Despite modest vertical wind shear, the large buoyancy may still support occasional strong to severe storms with the primary risk of damaging gusts and occasional hail. ...Northern CA into southern OR... Ahead of the weak upper low over southern CA, southerly flow will aid in increasing mid-level moisture across parts of northern CA and southern OR. Ample heating, weak synoptic ascent and typical terrain-induced circulations will encourage scattered high-based thunderstorm development through the afternoon. Nearly dry adiabatic lapse rates from deep mixing of the boundary layer to near 500mb will favor strong downdrafts capable of isolated severe wind gusts. MUCAPE (~1000 J/kg) and 20-30 kt of southerly shear, may also support marginally severe hail with the strongest cores. ..Lyons/Darrow.. 06/30/2025 Read more

SPC 1200Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0100 AM CDT Mon Jun 30 2025 Valid 301200Z - 011200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS THE SOUTHERN PLAINS MIDWEST AND MID ATLANTIC AS WELL AS THE NORTHWEST... ...SUMMARY... Scattered strong to severe thunderstorms remain possible across parts of the southern Plains, Ohio Valley, Midwest and the Mid-Atlantic today. A couple of severe thunderstorms also cannot be ruled out over parts of the Pacific Northwest. ...Synopsis... A broad upper trough is forecast to intensify as it moves southeastward across the Great Lakes and Midwest through tonight. At the same time, sub-tropical ridging will build over the Plains, keeping stronger flow aloft displaced to the north. To the west of the ridge, an upper low will overspread portions of the West Coast. At the surface, a weak cold front will sag southward from the Midwest to the southern Plains. Numerous thunderstorms are likely ahead of the front with isolated damaging gusts and hail possible. ...Midwest and Great lakes... Ahead of the slow-moving cold front, rich low-level moisture with dewpoints in the 70s F will be in place from MO/IL into Lower MI. A messy surface pattern, with multiple remnant outflows and cloud debris will likely modulate diurnal heating to some degree through the early afternoon. With little inhibition, scattered to numerous thunderstorms are expected by mid afternoon as ascent from the approaching upper trough overspreads the unstable air mass. Several loosely organized bands or clusters of strong pulse storms are likely. Weak mid-level flow and poor lapse rates suggests minimal potential for greater storm organization. Though high PWATS near 2 inches will support heavy water loading and microburst potential, with the stronger storms. ...OH valley to the Mid Atlantic... A similar pattern to the Midwest, with somewhat higher storm coverage, is expected from OH eastward into PA and the Mid Atlantic. Scattered to numerous thunderstorms should develop by late morning amid strong surface heating ahead of a subtle shortwave trough over the OH valley. 20-30 kt of mid-level flow could support some clustering of storms by early afternoon. Despite mediocre mid-level lapse rates less than 6 C/km, the high PWAT air mass and some consolidation of outflows could support isolated damaging wind potential across eastern OH, southern NY into PA and the Mid Atlantic states. ...Southern Plains to the Ozarks... Scattered thunderstorms should develop by mid afternoon ahead of sagging cold front from the TX Panhandle across the southern Plains and western Ozarks. Beneath the northern fringes of the building sub tropical high, strong heating and rich boundary-layer moisture will support large buoyancy (MLCAPE (3000-4000 J/kg). Scattered thunderstorm development is likely ahead of the front, and along remnant outflows from overnight convection. Despite modest vertical wind shear, the large buoyancy may still support occasional strong to severe storms with the primary risk of damaging gusts and occasional hail. ...Northern CA into southern OR... Ahead of the weak upper low over southern CA, southerly flow will aid in increasing mid-level moisture across parts of northern CA and southern OR. Ample heating, weak synoptic ascent and typical terrain-induced circulations will encourage scattered high-based thunderstorm development through the afternoon. Nearly dry adiabatic lapse rates from deep mixing of the boundary layer to near 500mb will favor strong downdrafts capable of isolated severe wind gusts. MUCAPE (~1000 J/kg) and 20-30 kt of southerly shear, may also support marginally severe hail with the strongest cores. ..Lyons/Darrow.. 06/30/2025 Read more

WW 0480 Status Updates
STATUS FOR WATCH 0480 HAS NOT BEEN ISSUED YET Read more

MD 1518 CONCERNING SEVERE THUNDERSTORM WATCH 479... FOR CENTRAL HIGH PLAINS
Mesoscale Discussion 1518 NWS Storm Prediction Center Norman OK 1010 PM CDT Sun Jun 29 2025 Areas affected...Central High Plains Concerning...Severe Thunderstorm Watch 479... Valid 300310Z - 300415Z The severe weather threat for Severe Thunderstorm Watch 479 continues. SUMMARY...Scattered strong-severe thunderstorms will propagate across the central High Plains over the next several hours. Wind and hail continue to be a threat. DISCUSSION...Scattered thunderstorms are gradually coalescing across the central High Plains of northwestern NE/extreme southeast WY. This activity has not yet developed a significant cold pool, but further precip expansion is possible as the northern Plains upper trough appears to be influencing this activity. As northwesterly mid-level flow strengthens across western NE, ongoing convection should continue to propagate southeast. Latest short-range model guidance, including most HREF members, suggest upscale growth into the early-morning hours, and an MCS should emerge. A new severe thunderstorm watch may be needed downstream to account for this scenario. ..Darrow.. 06/30/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...GID...LBF...GLD...BOU...CYS... LAT...LON 41980006 40719987 40140123 40850349 41590448 41810219 42520066 41980006 MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN Read more

MD 1517 CONCERNING SEVERE THUNDERSTORM WATCH 478... FOR SOUTHEAST KANSAS INTO NORTHEAST OKLAHOMA
Mesoscale Discussion 1517 NWS Storm Prediction Center Norman OK 0846 PM CDT Sun Jun 29 2025 Areas affected...Southeast Kansas into northeast Oklahoma Concerning...Severe Thunderstorm Watch 478... Valid 300146Z - 300315Z The severe weather threat for Severe Thunderstorm Watch 478 continues. SUMMARY...Storm clusters will continue to develop southward along and to the cool side of an outflow boundary, with the potential for isolated severe outflow gusts and large hail. DISCUSSION...Convection has increased the past 1-2 hours on the immediate cool side of a northwest-southeast oriented outflow boundary from northeast OK into southern KS. Though the boundary layer is beginning to cool with the loss of insolation, a modest increase in south-southwesterly low-level jet will help maintain ascent atop the cold pool. Given the environment with large buoyancy on the east edge of the steeper midlevel lapse rates, a storm cluster should be able to persist on the cool side of the outflow (where vertical shear is stronger) from southeast KS into northeast OK. Damaging outflow winds will be the main threat, though isolated large hail will also be possible with the strongest storms. ..Thompson.. 06/30/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...TSA...ICT...OUN... LAT...LON 36469717 36899738 37249748 37439730 37259567 36949541 36369503 35989535 35929575 35909633 36039682 36469717 MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN Read more

WW 0478 Status Updates
STATUS REPORT ON WW 478 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 NE PNC TO 20 WSW GMJ. WW 478 WILL BE ALLOWED TO EXPIRE AT 300200Z. ..THOMPSON..06/30/25 ATTN...WFO...ICT...SGF...TSA... STATUS REPORT FOR WS 478 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC035-077-095-191-300200- KS . KANSAS COUNTIES INCLUDED ARE COWLEY HARPER KINGMAN SUMNER OKC035-037-041-097-105-113-117-131-143-145-147-300200- OK . OKLAHOMA COUNTIES INCLUDED ARE CRAIG CREEK DELAWARE MAYES NOWATA OSAGE PAWNEE ROGERS TULSA WAGONER WASHINGTON 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 Read more

WW 0478 Status Updates
STATUS REPORT ON WW 478 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 NE PNC TO 20 WSW GMJ. WW 478 WILL BE ALLOWED TO EXPIRE AT 300200Z. ..THOMPSON..06/30/25 ATTN...WFO...ICT...SGF...TSA... STATUS REPORT FOR WS 478 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC035-077-095-191-300200- KS . KANSAS COUNTIES INCLUDED ARE COWLEY HARPER KINGMAN SUMNER OKC035-037-041-097-105-113-117-131-143-145-147-300200- OK . OKLAHOMA COUNTIES INCLUDED ARE CRAIG CREEK DELAWARE MAYES NOWATA OSAGE PAWNEE ROGERS TULSA WAGONER WASHINGTON 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 Read more

WW 0478 Status Updates
STATUS REPORT ON WW 478 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 NE PNC TO 20 WSW GMJ. WW 478 WILL BE ALLOWED TO EXPIRE AT 300200Z. ..THOMPSON..06/30/25 ATTN...WFO...ICT...SGF...TSA... STATUS REPORT FOR WS 478 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC035-077-095-191-300200- KS . KANSAS COUNTIES INCLUDED ARE COWLEY HARPER KINGMAN SUMNER OKC035-037-041-097-105-113-117-131-143-145-147-300200- OK . OKLAHOMA COUNTIES INCLUDED ARE CRAIG CREEK DELAWARE MAYES NOWATA OSAGE PAWNEE ROGERS TULSA WAGONER WASHINGTON 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 Read more

WW 0478 Status Updates
STATUS REPORT ON WW 478 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 NE PNC TO 20 WSW GMJ. WW 478 WILL BE ALLOWED TO EXPIRE AT 300200Z. ..THOMPSON..06/30/25 ATTN...WFO...ICT...SGF...TSA... STATUS REPORT FOR WS 478 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC035-077-095-191-300200- KS . KANSAS COUNTIES INCLUDED ARE COWLEY HARPER KINGMAN SUMNER OKC035-037-041-097-105-113-117-131-143-145-147-300200- OK . OKLAHOMA COUNTIES INCLUDED ARE CRAIG CREEK DELAWARE MAYES NOWATA OSAGE PAWNEE ROGERS TULSA WAGONER WASHINGTON 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 Read more

WW 0478 Status Updates
STATUS REPORT ON WW 478 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 NNW BVO TO 20 S CNU TO GMJ. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1517 ..THOMPSON..06/30/25 ATTN...WFO...ICT...SGF...TSA... STATUS REPORT FOR WS 478 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC015-019-035-049-099-125-173-191-205-300240- KS . KANSAS COUNTIES INCLUDED ARE BUTLER CHAUTAUQUA COWLEY ELK LABETTE MONTGOMERY SEDGWICK SUMNER WILSON OKC035-037-041-097-105-113-115-117-131-143-145-147-300240- OK . OKLAHOMA COUNTIES INCLUDED ARE CRAIG CREEK DELAWARE MAYES NOWATA OSAGE OTTAWA PAWNEE ROGERS TULSA WAGONER WASHINGTON THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL Read more

WW 0478 Status Updates
STATUS REPORT ON WW 478 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 NNW BVO TO 20 S CNU TO GMJ. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1517 ..THOMPSON..06/30/25 ATTN...WFO...ICT...SGF...TSA... STATUS REPORT FOR WS 478 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS KSC015-019-035-049-099-125-173-191-205-300240- KS . KANSAS COUNTIES INCLUDED ARE BUTLER CHAUTAUQUA COWLEY ELK LABETTE MONTGOMERY SEDGWICK SUMNER WILSON OKC035-037-041-097-105-113-115-117-131-143-145-147-300240- OK . OKLAHOMA COUNTIES INCLUDED ARE CRAIG CREEK DELAWARE MAYES NOWATA OSAGE OTTAWA PAWNEE ROGERS TULSA WAGONER WASHINGTON THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL Read more

WW 478 SEVERE TSTM KS MO OK 291920Z - 300200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 478 NWS Storm Prediction Center Norman OK 220 PM CDT Sun Jun 29 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Kansas Southwest Missouri Northeast Oklahoma * Effective this Sunday afternoon and evening from 220 PM until 900 PM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible SUMMARY...A line of thunderstorms has developed across east-central Kansas and western Missouri. These storms will track southeastward into a very warm/humid, and unstable air mass through the afternoon. Locally damaging wind gusts will be possible. The severe thunderstorm watch area is approximately along and 35 statute miles north and south of a line from 60 miles west southwest of Chanute KS to 15 miles northeast of Springfield MO. 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. && OTHER WATCH INFORMATION...CONTINUE...WW 477... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30025. ...Hart Read more

WW 0479 Status Updates
STATUS REPORT ON WW 479 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE DGW TO 25 E CDR. ..SPC..06/30/25 ATTN...WFO...BOU...CYS...LBF...UNR... STATUS REPORT FOR WS 479 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC001-005-013-014-031-039-069-073-075-087-095-115-121-123- 300240- CO . COLORADO COUNTIES INCLUDED ARE ADAMS ARAPAHOE BOULDER BROOMFIELD DENVER ELBERT LARIMER LINCOLN LOGAN MORGAN PHILLIPS SEDGWICK WASHINGTON WELD NEC005-007-013-031-033-045-049-069-075-091-105-117-123-157-161- 165-300240- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BANNER BOX BUTTE CHERRY CHEYENNE DAWES DEUEL GARDEN GRANT HOOKER KIMBALL MCPHERSON MORRILL SCOTTS BLUFF SHERIDAN SIOUX Read more

WW 0479 Status Updates
STATUS REPORT ON WW 479 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE DGW TO 25 E CDR. ..SPC..06/30/25 ATTN...WFO...BOU...CYS...LBF...UNR... STATUS REPORT FOR WS 479 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC001-005-013-014-031-039-069-073-075-087-095-115-121-123- 300240- CO . COLORADO COUNTIES INCLUDED ARE ADAMS ARAPAHOE BOULDER BROOMFIELD DENVER ELBERT LARIMER LINCOLN LOGAN MORGAN PHILLIPS SEDGWICK WASHINGTON WELD NEC005-007-013-031-033-045-049-069-075-091-105-117-123-157-161- 165-300240- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BANNER BOX BUTTE CHERRY CHEYENNE DAWES DEUEL GARDEN GRANT HOOKER KIMBALL MCPHERSON MORRILL SCOTTS BLUFF SHERIDAN SIOUX Read more

WW 0479 Status Updates
STATUS REPORT ON WW 479 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE DGW TO 25 E CDR. ..SPC..06/30/25 ATTN...WFO...BOU...CYS...LBF...UNR... STATUS REPORT FOR WS 479 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC001-005-013-014-031-039-069-073-075-087-095-115-121-123- 300240- CO . COLORADO COUNTIES INCLUDED ARE ADAMS ARAPAHOE BOULDER BROOMFIELD DENVER ELBERT LARIMER LINCOLN LOGAN MORGAN PHILLIPS SEDGWICK WASHINGTON WELD NEC005-007-013-031-033-045-049-069-075-091-105-117-123-157-161- 165-300240- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BANNER BOX BUTTE CHERRY CHEYENNE DAWES DEUEL GARDEN GRANT HOOKER KIMBALL MCPHERSON MORRILL SCOTTS BLUFF SHERIDAN SIOUX Read more

WW 0479 Status Updates
STATUS REPORT ON WW 479 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE DGW TO 25 E CDR. ..SPC..06/30/25 ATTN...WFO...BOU...CYS...LBF...UNR... STATUS REPORT FOR WS 479 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC001-005-013-014-031-039-069-073-075-087-095-115-121-123- 300240- CO . COLORADO COUNTIES INCLUDED ARE ADAMS ARAPAHOE BOULDER BROOMFIELD DENVER ELBERT LARIMER LINCOLN LOGAN MORGAN PHILLIPS SEDGWICK WASHINGTON WELD NEC005-007-013-031-033-045-049-069-075-091-105-117-123-157-161- 165-300240- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BANNER BOX BUTTE CHERRY CHEYENNE DAWES DEUEL GARDEN GRANT HOOKER KIMBALL MCPHERSON MORRILL SCOTTS BLUFF SHERIDAN SIOUX Read more

WW 0479 Status Updates
STATUS REPORT ON WW 479 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE DGW TO 25 E CDR. ..SPC..06/30/25 ATTN...WFO...BOU...CYS...LBF...UNR... STATUS REPORT FOR WS 479 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC001-005-013-014-031-039-069-073-075-087-095-115-121-123- 300240- CO . COLORADO COUNTIES INCLUDED ARE ADAMS ARAPAHOE BOULDER BROOMFIELD DENVER ELBERT LARIMER LINCOLN LOGAN MORGAN PHILLIPS SEDGWICK WASHINGTON WELD NEC005-007-013-031-033-045-049-069-075-091-105-117-123-157-161- 165-300240- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BANNER BOX BUTTE CHERRY CHEYENNE DAWES DEUEL GARDEN GRANT HOOKER KIMBALL MCPHERSON MORRILL SCOTTS BLUFF SHERIDAN SIOUX Read more

WW 0479 Status Updates
STATUS REPORT ON WW 479 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 SE DGW TO 25 E CDR. ..SPC..06/30/25 ATTN...WFO...BOU...CYS...LBF...UNR... STATUS REPORT FOR WS 479 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC001-005-013-014-031-039-069-073-075-087-095-115-121-123- 300240- CO . COLORADO COUNTIES INCLUDED ARE ADAMS ARAPAHOE BOULDER BROOMFIELD DENVER ELBERT LARIMER LINCOLN LOGAN MORGAN PHILLIPS SEDGWICK WASHINGTON WELD NEC005-007-013-031-033-045-049-069-075-091-105-117-123-157-161- 165-300240- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BANNER BOX BUTTE CHERRY CHEYENNE DAWES DEUEL GARDEN GRANT HOOKER KIMBALL MCPHERSON MORRILL SCOTTS BLUFF SHERIDAN SIOUX Read more

WW 479 SEVERE TSTM CO NE SD WY 291945Z - 300300Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 479 NWS Storm Prediction Center Norman OK 145 PM MDT Sun Jun 29 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northeast Colorado Western Nebraska Southwest South Dakota Eastern Wyoming * Effective this Sunday afternoon and evening from 145 PM until 900 PM MDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2.5 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Clusters of thunderstorms will develop from eastern Wyoming into central Colorado this afternoon. These storms will spread eastward into western South Dakota/Nebraska through the evening. Damaging winds and large hail will be possible. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 85 miles north northwest of Chadron NE to 15 miles southwest of Limon CO. 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 477...WW 478... AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28030. ...Hart Read more

WW 0477 Status Updates
STATUS REPORT ON WW 477 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NW DBQ TO 15 WSW LNR TO 25 NW MKE. WW 477 WILL BE ALLOWED TO EXPIRE AT 300200Z. ..THOMPSON..06/30/25 ATTN...WFO...ARX...GRB...MKX... STATUS REPORT FOR WS 477 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS WIC025-043-045-049-065-300200- WI . WISCONSIN COUNTIES INCLUDED ARE DANE GRANT GREEN IOWA LAFAYETTE 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