Severe Storms

WW 0443 Status Updates
STATUS REPORT ON WW 443 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 WSW LAR TO 35 NW CDR. ..GLEASON..06/22/24 ATTN...WFO...BOU...BYZ...CYS...RIW...UNR... STATUS REPORT FOR WS 443 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC069-075-095-115-123-220240- CO . COLORADO COUNTIES INCLUDED ARE LARIMER LOGAN PHILLIPS SEDGWICK WELD NEC007-013-033-045-105-123-157-165-220240- NE . NEBRASKA COUNTIES INCLUDED ARE BANNER BOX BUTTE CHEYENNE DAWES KIMBALL MORRILL SCOTTS BLUFF SIOUX WYC001-015-021-031-220240- WY . WYOMING COUNTIES INCLUDED ARE ALBANY GOSHEN LARAMIE Read more

WW 0445 Status Updates
STATUS REPORT ON WW 445 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1369 ..GLEASON..06/22/24 ATTN...WFO...FSD...OAX...LBF...GID...GLD... STATUS REPORT FOR WS 445 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC035-041-059-119-141-143-149-167-193-220240- IA . IOWA COUNTIES INCLUDED ARE CHEROKEE CLAY DICKINSON LYON O'BRIEN OSCEOLA PLYMOUTH SIOUX WOODBURY MNC063-105-133-220240- MN . MINNESOTA COUNTIES INCLUDED ARE JACKSON NOBLES ROCK NEC003-009-011-015-017-019-027-041-043-047-051-057-063-071-073- 077-079-081-085-087-089-093-107-111-113-115-117-119-121-125-137- 139-141-143-145-149-163-167-171-173-175-179-183-185-220240- NE . NEBRASKA COUNTIES INCLUDED ARE Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0752 PM CDT Fri Jun 21 2024 Valid 220100Z - 221200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS PARTS OF CENTRAL MONTANA...EASTERN WYOMING...NORTHEASTERN COLORADO...SOUTHERN SOUTH DAKOTA...NEBRASKA...SOUTHERN MINNESOTA...NORTHWESTERN IOWA... ...SUMMARY... Widely scattered strong to severe thunderstorm development remains possible this evening across the Rockies, adjacent portions of the Southwest, and parts of the central Great Plains into the Upper Midwest. ...01Z Update... Downstream of broad, weak mid/upper troughing, widely scattered strong to severe thunderstorm activity persists across the Rockies, adjacent portions of the Southwest and Great Plains, with additional widely scattered activity focused near the northern periphery of prominent mid-level ridging centered over the Mid South. While convection across most areas already appears in the process of slowly waning, an evolving cluster of storms across parts of central into northeastern Nebraska could still strengthen and organize further this evening into the overnight hours, accompanied by increasing risk for potentially damaging wind gusts. The environment across the Missouri Valley, ahead of it, remains potentially unstable, with CAPE on the order of 1500-2000+ J/kg, as a belt of 30-40+ kt south-southwesterly to westerly flow in the 850-500 mb layer noses northeast of the Kansas/Nebraska border toward the Upper Midwest. ..Kerr.. 06/22/2024 Read more

MD 1368 CONCERNING SEVERE THUNDERSTORM WATCH 442... FOR WESTERN INTO CENTRAL MONTANA
Mesoscale Discussion 1368 NWS Storm Prediction Center Norman OK 0627 PM CDT Fri Jun 21 2024 Areas affected...Western into central Montana Concerning...Severe Thunderstorm Watch 442... Valid 212327Z - 220100Z The severe weather threat for Severe Thunderstorm Watch 442 continues. SUMMARY...The strongest convection will continue southeastward this evening. Additional development may occur. Large hail and isolated severe winds are the main hazards. DISCUSSION...A few widely scattered supercells are moving slowly southeastward into parts of central Montana. This motion is generally expected to continue into the evening, as this is where the moisture axis is situated. However, some early convection has left some outflow (cooler/modestly drier) that is evident in surface observations. It is unclear how this will impact the ongoing strong/severe storms as they encounter this mesoscale environment. Additional storms may develop within the terrain or perhaps along the southern edge of the outflow. It also appears possible that a storm or two could move southeastward out of Alberta. In general, large hail (conditionally up to 2 inches with a mature supercell) and isolated strong/severe gusts are the main threats into the evening. ..Wendt.. 06/21/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...BYZ...GGW...TFX... LAT...LON 47651240 48211276 48861316 49011287 49011105 48460940 47990849 46790767 46150848 46141001 47161204 47651240 Read more

WW 0442 Status Updates
STATUS REPORT ON WW 442 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..WENDT..06/22/24 ATTN...WFO...TFX...BYZ...GGW... STATUS REPORT FOR WS 442 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC005-013-015-027-035-041-045-051-059-069-073-099-101-220140- MT . MONTANA COUNTIES INCLUDED ARE BLAINE CASCADE CHOUTEAU FERGUS GLACIER HILL JUDITH BASIN LIBERTY MEAGHER PETROLEUM PONDERA TETON TOOLE 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 0442 Status Updates
STATUS REPORT ON WW 442 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..WENDT..06/22/24 ATTN...WFO...TFX...BYZ...GGW... STATUS REPORT FOR WS 442 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC005-013-015-027-035-041-045-051-059-069-073-099-101-220140- MT . MONTANA COUNTIES INCLUDED ARE BLAINE CASCADE CHOUTEAU FERGUS GLACIER HILL JUDITH BASIN LIBERTY MEAGHER PETROLEUM PONDERA TETON TOOLE 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 0442 Status Updates
STATUS REPORT ON WW 442 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..WENDT..06/22/24 ATTN...WFO...TFX...BYZ...GGW... STATUS REPORT FOR WS 442 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC005-013-015-027-035-041-045-051-059-069-073-099-101-220140- MT . MONTANA COUNTIES INCLUDED ARE BLAINE CASCADE CHOUTEAU FERGUS GLACIER HILL JUDITH BASIN LIBERTY MEAGHER PETROLEUM PONDERA TETON TOOLE 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 0442 Status Updates
STATUS REPORT ON WW 442 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..WENDT..06/22/24 ATTN...WFO...TFX...BYZ...GGW... STATUS REPORT FOR WS 442 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC005-013-015-027-035-041-045-051-059-069-073-099-101-220140- MT . MONTANA COUNTIES INCLUDED ARE BLAINE CASCADE CHOUTEAU FERGUS GLACIER HILL JUDITH BASIN LIBERTY MEAGHER PETROLEUM PONDERA TETON TOOLE 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 442 SEVERE TSTM MT 211840Z - 220200Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 442 NWS Storm Prediction Center Norman OK 1240 PM MDT Fri Jun 21 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central Montana * Effective this Friday afternoon and evening from 1240 PM until 800 PM MDT. * Primary threats include... Scattered large hail likely with isolated very large hail events to 3 inches in diameter possible Scattered damaging wind gusts to 70 mph possible A tornado or two possible SUMMARY...Isolated supercell thunderstorms will develop and track across the watch area this afternoon and evening, capable of very large hail and damaging wind gusts. An isolated tornado or two is also possible. The severe thunderstorm watch area is approximately along and 65 statute miles east and west of a line from 65 miles west northwest of Havre MT to 30 miles east southeast of Harlowton MT. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). 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 441... AVIATION...A few severe thunderstorms with hail surface and aloft to 3 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Hart Read more

WW 0443 Status Updates
STATUS REPORT ON WW 443 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 WSW LAR TO 25 NNW LAR TO 15 ESE DGW TO 55 N DGW TO 25 SW GCC TO 30 WSW 4BQ. ..GLEASON..06/22/24 ATTN...WFO...BOU...BYZ...CYS...RIW...UNR... STATUS REPORT FOR WS 443 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS COC069-075-095-115-123-220140- CO . COLORADO COUNTIES INCLUDED ARE LARIMER LOGAN PHILLIPS SEDGWICK WELD NEC007-013-033-045-105-123-157-165-220140- NE . NEBRASKA COUNTIES INCLUDED ARE BANNER BOX BUTTE CHEYENNE DAWES KIMBALL MORRILL SCOTTS BLUFF SIOUX WYC001-005-009-011-015-021-027-031-045-220140- WY . WYOMING COUNTIES INCLUDED ARE Read more

WW 0445 Status Updates
STATUS REPORT ON WW 445 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..GLEASON..06/22/24 ATTN...WFO...FSD...OAX...LBF...GID...GLD... STATUS REPORT FOR WS 445 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC035-041-059-119-141-143-149-167-193-220140- IA . IOWA COUNTIES INCLUDED ARE CHEROKEE CLAY DICKINSON LYON O'BRIEN OSCEOLA PLYMOUTH SIOUX WOODBURY MNC063-105-133-220140- MN . MINNESOTA COUNTIES INCLUDED ARE JACKSON NOBLES ROCK NEC003-009-011-015-017-019-027-041-043-047-051-057-063-071-073- 077-079-085-087-089-093-107-111-113-115-117-119-121-125-137-139- 141-145-149-163-167-171-173-175-179-183-220140- NE . NEBRASKA COUNTIES INCLUDED ARE ANTELOPE BLAINE BOONE Read more

MD 1367 CONCERNING SEVERE THUNDERSTORM WATCH 445... FOR PARTS OF CENTRAL/EASTERN NE INTO SOUTHEAST SD...NORTHWEST IA...AND SOUTHWEST MN
Mesoscale Discussion 1367 NWS Storm Prediction Center Norman OK 0618 PM CDT Fri Jun 21 2024 Areas affected...Parts of central/eastern NE into southeast SD...northwest IA...and southwest MN Concerning...Severe Thunderstorm Watch 445... Valid 212318Z - 220045Z The severe weather threat for Severe Thunderstorm Watch 445 continues. SUMMARY...A loosely organized cluster of thunderstorms in central/northeast Nebraska may pose an isolated threat for severe wind in the short term. Other strong to severe thunderstorms in and near Severe Thunderstorm Watch 445 should have some hail/wind threat as well. DISCUSSION...Loosely organized convection is ongoing early this evening across central into northeast NE. Although this activity is occurring in a favorable thermodynamic and kinematic environment along/near a surface front, it has struggled to intensify/consolidate thus far. There still appears to be some chance for this cluster to become more organized this evening as a modest south-southwesterly low-level jet gradually strengthens over the central Plains and mid MO Valley. If further strengthening of this activity can occur, then severe/damaging winds up to 60-70 mph would likely be the main threat as these thunderstorms spread generally east-northeastward this evening. Other, more cellular thunderstorms are ongoing across southeast SD to the north of the front. Isolated hail and strong to locally severe winds may occur with this convection as well. The tornado threat remains less clear owing to messy storm modes. Still, some increase in low-level shear is anticipated this evening, and any persistent supercell along/near the surface front could pose some threat for a tornado. ..Gleason.. 06/21/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FSD...OAX...GID...LBF... LAT...LON 40819975 42359986 42869975 43819761 44189632 44149570 43899533 43139531 42609560 40989847 40679941 40819975 Read more