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SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0743 PM CDT Sun May 11 2025 Valid 120100Z - 121200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN EASTERN MT AND WESTERN ND... ...SUMMARY... Isolated to scattered severe wind gusts may persist across parts of the northern Great Plains this evening but will subside tonight. A low-probability wind/tornado threat remains apparent across central/south Alabama to the Florida Panhandle into Monday morning. ...Northern Great Plains/Rockies... Isolated to widely scattered thunderstorms are ongoing across parts of the Rockies and northern Great Plains. The most likely corridor for severe gusts appears to be from eastern MT through western ND where surface temperature-dew point spreads of 45-55 F remain common. This activity will diminish after sunset, with the severe wind threat expected to cease towards late evening. Farther west in the ID Panhandle to northwest MT, a supercell or two remains possible the northern Rockies, within the left-exit region of a strengthening mid-level jet. Meager buoyancy will be the primary limiting factor, but small to marginally severe hail is possible within the post-frontal convective regime. ...Southeast... Overall severe potential has been limited today, despite extensive convective activity. Will continue a low-probability severe area ahead of an arc of slow-moving storms over southwest AL. Bulk of guidance suggests slight strengthening of mid-level southerlies will occur across the FL Panhandle and the southeast AL/southwest GA vicinity tonight, downstream of the nearly-stationary low over LA. This may foster maintenance of transient supercell structures atop surface east-southeasterly winds. Weak buoyancy and mid-level lapse rates will limit overall tornado/wind potential. Elsewhere, localized strong gusts may still occur from the FL Peninsula towards the GA/SC coast through the overnight. ..Grams.. 05/12/2025 Read more

MD 0769 CONCERNING SEVERE THUNDERSTORM WATCH 245... FOR PARTS OF NORTHERN UT...WESTERN WY AND SOUTHWEST MT
Mesoscale Discussion 0769 NWS Storm Prediction Center Norman OK 0534 PM CDT Sun May 11 2025 Areas affected...parts of northern UT...western WY and southwest MT Concerning...Severe Thunderstorm Watch 245... Valid 112234Z - 120030Z The severe weather threat for Severe Thunderstorm Watch 245 continues. SUMMARY...Scattered high-based showers and storms will remain capable of damaging gusts to 60-80 mph this evening. DISCUSSION...As of 2225 UTC, regional radar and satellite imagery showed scattered high-based showers and thunderstorms have developed across WW245 this afternoon. Numerous reports of severe/damaging gusts have been noted over UT and ID so far indicating an environment supportive of severe gusts. This is expected to continue as storms gradually expand northeastward into western WY and southern MT this evening with 500-1000 J/kg of MLCAPE and 40+ kt of effective shear. While some redevelopment is possible farther south through this evening, decreasing MU and DCAPE from SPC mesoanalysis indicate some air mass overturning has occurred across southern portions of the watch in northern UT. This may limit the best storm coverage to area farther north, but given the environment remains broadly favorable, severe gusts remain possible over much of the watch area this evening. ..Lyons.. 05/11/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BYZ...RIW...TFX...SLC...PIH...MSO... LAT...LON 40861390 44251326 45111060 44900833 43710908 43370924 40861102 40431136 40631276 40861390 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN Read more

WW 0245 Status Updates
STATUS REPORT ON WW 245 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..LYONS..05/12/25 ATTN...WFO...PIH...SLC...RIW... STATUS REPORT FOR WS 245 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IDC005-007-011-013-019-023-029-031-033-041-043-051-063-065-067- 071-077-081-120140- ID . IDAHO COUNTIES INCLUDED ARE BANNOCK BEAR LAKE BINGHAM BLAINE BONNEVILLE BUTTE CARIBOU CASSIA CLARK FRANKLIN FREMONT JEFFERSON LINCOLN MADISON MINIDOKA ONEIDA POWER TETON UTC003-005-011-029-033-035-043-045-049-051-057-120140- UT . UTAH COUNTIES INCLUDED ARE BOX ELDER CACHE DAVIS MORGAN RICH SALT LAKE SUMMIT TOOELE UTAH WASATCH WEBER WYC023-029-035-039-041-120140- Read more

WW 0245 Status Updates
STATUS REPORT ON WW 245 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..LYONS..05/12/25 ATTN...WFO...PIH...SLC...RIW... STATUS REPORT FOR WS 245 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IDC005-007-011-013-019-023-029-031-033-041-043-051-063-065-067- 071-077-081-120140- ID . IDAHO COUNTIES INCLUDED ARE BANNOCK BEAR LAKE BINGHAM BLAINE BONNEVILLE BUTTE CARIBOU CASSIA CLARK FRANKLIN FREMONT JEFFERSON LINCOLN MADISON MINIDOKA ONEIDA POWER TETON UTC003-005-011-029-033-035-043-045-049-051-057-120140- UT . UTAH COUNTIES INCLUDED ARE BOX ELDER CACHE DAVIS MORGAN RICH SALT LAKE SUMMIT TOOELE UTAH WASATCH WEBER WYC023-029-035-039-041-120140- Read more

WW 0245 Status Updates
STATUS REPORT ON WW 245 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..LYONS..05/12/25 ATTN...WFO...PIH...SLC...RIW... STATUS REPORT FOR WS 245 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IDC005-007-011-013-019-023-029-031-033-041-043-051-063-065-067- 071-077-081-120140- ID . IDAHO COUNTIES INCLUDED ARE BANNOCK BEAR LAKE BINGHAM BLAINE BONNEVILLE BUTTE CARIBOU CASSIA CLARK FRANKLIN FREMONT JEFFERSON LINCOLN MADISON MINIDOKA ONEIDA POWER TETON UTC003-005-011-029-033-035-043-045-049-051-057-120140- UT . UTAH COUNTIES INCLUDED ARE BOX ELDER CACHE DAVIS MORGAN RICH SALT LAKE SUMMIT TOOELE UTAH WASATCH WEBER WYC023-029-035-039-041-120140- Read more

WW 0245 Status Updates
STATUS REPORT ON WW 245 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..LYONS..05/12/25 ATTN...WFO...PIH...SLC...RIW... STATUS REPORT FOR WS 245 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IDC005-007-011-013-019-023-029-031-033-041-043-051-063-065-067- 071-077-081-120140- ID . IDAHO COUNTIES INCLUDED ARE BANNOCK BEAR LAKE BINGHAM BLAINE BONNEVILLE BUTTE CARIBOU CASSIA CLARK FRANKLIN FREMONT JEFFERSON LINCOLN MADISON MINIDOKA ONEIDA POWER TETON UTC003-005-011-029-033-035-043-045-049-051-057-120140- UT . UTAH COUNTIES INCLUDED ARE BOX ELDER CACHE DAVIS MORGAN RICH SALT LAKE SUMMIT TOOELE UTAH WASATCH WEBER WYC023-029-035-039-041-120140- Read more

WW 0245 Status Updates
STATUS REPORT ON WW 245 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..LYONS..05/12/25 ATTN...WFO...PIH...SLC...RIW... STATUS REPORT FOR WS 245 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IDC005-007-011-013-019-023-029-031-033-041-043-051-063-065-067- 071-077-081-120140- ID . IDAHO COUNTIES INCLUDED ARE BANNOCK BEAR LAKE BINGHAM BLAINE BONNEVILLE BUTTE CARIBOU CASSIA CLARK FRANKLIN FREMONT JEFFERSON LINCOLN MADISON MINIDOKA ONEIDA POWER TETON UTC003-005-011-029-033-035-043-045-049-051-057-120140- UT . UTAH COUNTIES INCLUDED ARE BOX ELDER CACHE DAVIS MORGAN RICH SALT LAKE SUMMIT TOOELE UTAH WASATCH WEBER WYC023-029-035-039-041-120140- Read more

WW 245 SEVERE TSTM ID UT WY 111910Z - 120200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 245 NWS Storm Prediction Center Norman OK 110 PM MDT Sun May 11 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Eastern Idaho Northern Utah Western Wyoming * Effective this Sunday afternoon and evening from 110 PM until 800 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Thunderstorm intensity and coverage is expected to increase this afternoon across eastern ID, northern UT, and western WY. Environmental conditions support the potential for strong to severe storms capable of strong gusts. Isolated large hail is also possible, particularly in areas of higher terrain. The severe thunderstorm watch area is approximately along and 80 statute miles east and west of a line from 65 miles north northeast of Idaho Falls ID to 40 miles southwest of Salt Lake City UT. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). 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 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 23035. ...Mosier Read more

WW 0246 Status Updates
STATUS REPORT ON WW 246 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..BENTLEY..05/12/25 ATTN...WFO...BYZ...GGW...BIS... STATUS REPORT FOR WS 246 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC003-011-017-021-025-075-079-083-087-103-109-120140- MT . MONTANA COUNTIES INCLUDED ARE BIG HORN CARTER CUSTER DAWSON FALLON POWDER RIVER PRAIRIE RICHLAND ROSEBUD TREASURE WIBAUX NDC001-007-011-025-033-041-053-087-089-120140- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BILLINGS BOWMAN DUNN GOLDEN VALLEY HETTINGER MCKENZIE SLOPE STARK WYC033-120140- WY . WYOMING COUNTIES INCLUDED ARE Read more

WW 0246 Status Updates
STATUS REPORT ON WW 246 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..BENTLEY..05/12/25 ATTN...WFO...BYZ...GGW...BIS... STATUS REPORT FOR WS 246 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC003-011-017-021-025-075-079-083-087-103-109-120140- MT . MONTANA COUNTIES INCLUDED ARE BIG HORN CARTER CUSTER DAWSON FALLON POWDER RIVER PRAIRIE RICHLAND ROSEBUD TREASURE WIBAUX NDC001-007-011-025-033-041-053-087-089-120140- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BILLINGS BOWMAN DUNN GOLDEN VALLEY HETTINGER MCKENZIE SLOPE STARK WYC033-120140- WY . WYOMING COUNTIES INCLUDED ARE Read more

MD 0769 CONCERNING SEVERE THUNDERSTORM WATCH 245... FOR PARTS OF NORTHERN UT...WESTERN WY AND SOUTHWEST MT
Mesoscale Discussion 0769 NWS Storm Prediction Center Norman OK 0534 PM CDT Sun May 11 2025 Areas affected...parts of northern UT...western WY and southwest MT Concerning...Severe Thunderstorm Watch 245... Valid 112234Z - 120030Z The severe weather threat for Severe Thunderstorm Watch 245 continues. SUMMARY...Scattered high-based showers and storms will remain capable of damaging gusts to 60-80 mph this evening. DISCUSSION...As of 2225 UTC, regional radar and satellite imagery showed scattered high-based showers and thunderstorms have developed across WW245 this afternoon. Numerous reports of severe/damaging gusts have been noted over UT and ID so far indicating an environment supportive of severe gusts. This is expected to continue as storms gradually expand northeastward into western WY and southern MT this evening with 500-1000 J/kg of MLCAPE and 40+ kt of effective shear. While some redevelopment is possible farther south through this evening, decreasing MU and DCAPE from SPC mesoanalysis indicate some air mass overturning has occurred across southern portions of the watch in northern UT. This may limit the best storm coverage to area farther north, but given the environment remains broadly favorable, severe gusts remain possible over much of the watch area this evening. ..Lyons.. 05/11/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BYZ...RIW...TFX...SLC...PIH...MSO... LAT...LON 40861390 44251326 45111060 44900833 43710908 43370924 40861102 40431136 40631276 40861390 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN Read more

MD 0768 CONCERNING SEVERE POTENTIAL...WATCH POSSIBLE FOR CENTRAL AND EASTERN MONTANA INTO WESTERN NORTH DAKOTA
Mesoscale Discussion 0768 NWS Storm Prediction Center Norman OK 0457 PM CDT Sun May 11 2025 Areas affected...central and eastern Montana into western North Dakota Concerning...Severe potential...Watch possible Valid 112157Z - 120000Z Probability of Watch Issuance...60 percent SUMMARY...Severe wind gusts possible across central and eastern Montana into western North Dakota this evening. DISCUSSION...A few storm clusters have developed this evening, one in north-central Montana and another in southeast Montana. A very deeply mixed environment ahead of this activity will support severe wind gusts. These winds will be most likely in a belt from north-central Montana to northeast Montana and another across southeast Montana into western North Dakota. MLCAPE is only around 500 to 750 J/kg, but is sufficient to support strengthening convection a some additional storms. The most likely corridor for a watch is the southeast Montana corridor where the region of greater instability is larger and where temperatures are warmer (away from the cloudcover). In addition, the HRRR has a consistent signal showing 70-80 mph surface wind gusts from the convection that is currently in southeast Montana as it moves northeast and eventually into western North Dakota. Additional convection developing across far southeast Montana may also pose a severe wind threat as it congeals and moves north-east/north this evening. ..Bentley/Hart.. 05/11/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BIS...UNR...BYZ...GGW...RIW...TFX... LAT...LON 49110182 47530198 46050267 45860393 45150514 44870784 45550932 46201120 46851177 47691158 49101033 49060400 49110182 MOST PROBABLE PEAK WIND GUST...75-90 MPH Read more