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WW 0555 Status Updates
STATUS REPORT ON WW 555 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NE DSM TO 30 E ALO TO 55 NW DBQ. ..GRAMS..07/29/25 ATTN...WFO...ARX...DMX...DVN... STATUS REPORT FOR WS 555 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC011-013-019-031-043-045-055-061-095-097-099-103-105-107-113- 157-171-183-290840- IA . IOWA COUNTIES INCLUDED ARE BENTON BLACK HAWK BUCHANAN CEDAR CLAYTON CLINTON DELAWARE DUBUQUE IOWA JACKSON JASPER JOHNSON JONES KEOKUK LINN POWESHIEK TAMA WASHINGTON WIC043-290840- WI . WISCONSIN COUNTIES INCLUDED ARE GRANT 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 555 SEVERE TSTM IA MN 290305Z - 290900Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 555 NWS Storm Prediction Center Norman OK 1005 PM CDT Mon Jul 28 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern, Central, and Eastern Iowa Southeast Minnesota * Effective this Monday night and Tuesday morning from 1005 PM until 400 AM CDT. * Primary threats include... Widespread damaging winds and isolated significant gusts to 85 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...An intense and well-organized convective line is moving quickly into northeast IA. This line should remain intense as it continues progressing eastward or perhaps east-southeastward for the next several hours. Strong gusts are likely within this line, including the potential for gust reaching to around 85 mph. A brief line-embedded tornado is possible as well. Additionally, another convective line is moving southeastward into more of southeast MN. Damaging gusts are possible within this line for the next few hours as well. The severe thunderstorm watch area is approximately along and 55 statute miles north and south of a line from 35 miles south of Spencer IA to 50 miles north northeast of Cedar Rapids IA. 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. && OTHER WATCH INFORMATION...CONTINUE...WW 553...WW 554... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 75 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 28045. ...Mosier Read more

MD 1831 CONCERNING SEVERE THUNDERSTORM WATCH 555... FOR EASTERN IA...NORTHWEST IL...SOUTHWEST WI
Mesoscale Discussion 1831 NWS Storm Prediction Center Norman OK 1253 AM CDT Tue Jul 29 2025 Areas affected...eastern IA...northwest IL...southwest WI Concerning...Severe Thunderstorm Watch 555... Valid 290553Z - 290730Z The severe weather threat for Severe Thunderstorm Watch 555 continues. SUMMARY...Strong to isolated severe gusts should diminish in the next couple hours as an MCS from northeast to central Iowa spreads east. An additional WW appears unlikely. DISCUSSION...Deep convective cores within the MCS across the Upper Midwest have now become confined from northeast to central Iowa. Northern parts of this short-line segment trail behind outflow from leading convection in southwest/central WI. Still, this MCS is crossing the MLCAPE gradient, modulated by last night's MCS in the same region. It is plausible that another swath of severe gusts may yet occur with a small-scale bow/surge across northeast IA towards the WI/IL border area. But overall trends and recent CAM guidance suggest the wind threat will diminish in the next couple hours. ..Grams/Hart.. 07/29/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LOT...MKX...DVN...ARX...DMX... LAT...LON 43419235 43519168 43559018 43348970 42528933 42098941 41998945 41748979 41639039 41639117 41689186 41779256 42009323 42189343 43419235 MOST PROBABLE PEAK WIND GUST...55-70 MPH Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0217 AM CDT Tue Jul 29 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN OREGON INTO EXTREME NORTHWEST NEVADA... ...Synopsis... Upper ridging will persist across the central and eastern CONUS while broad mid-level troughing remains in place along the West Coast tomorrow (Wednesday). Mid-level moisture will continue to pivot around the mid-level trough, toward the upper ridge, from the Pacific Northwest into the northern Rockies. An embedded mid-level impulse, accompanied by stronger flow aloft, will traverse the northwest Great Basin and move northwestward into the Pacific Northwest through the late afternoon to overnight period. As this occurs, enhanced lift will promote at least scattered thunderstorms over portions of the Pacific Northwest. Broad isolated dry-thunderstorm highlights are in place for areas that will experience lightning over dry fuels. Along and east of the Cascades, forecast soundings depict inverted-v thermodynamic profiles, which would support high-based, potentially fast-moving thunderstorms. These storms may pass over fuels receptive to fire spread, but with minimal rainfall accumulations given fast storm speeds. Given the potentially higher density of fast moving storms east of the Cascades, scattered dry thunderstorm highlights have been introduced for central and eastern Oregon into extreme northwest Nevada. ..Squitieri.. 07/29/2025 ...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 0217 AM CDT Tue Jul 29 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN OREGON INTO EXTREME NORTHWEST NEVADA... ...Synopsis... Upper ridging will persist across the central and eastern CONUS while broad mid-level troughing remains in place along the West Coast tomorrow (Wednesday). Mid-level moisture will continue to pivot around the mid-level trough, toward the upper ridge, from the Pacific Northwest into the northern Rockies. An embedded mid-level impulse, accompanied by stronger flow aloft, will traverse the northwest Great Basin and move northwestward into the Pacific Northwest through the late afternoon to overnight period. As this occurs, enhanced lift will promote at least scattered thunderstorms over portions of the Pacific Northwest. Broad isolated dry-thunderstorm highlights are in place for areas that will experience lightning over dry fuels. Along and east of the Cascades, forecast soundings depict inverted-v thermodynamic profiles, which would support high-based, potentially fast-moving thunderstorms. These storms may pass over fuels receptive to fire spread, but with minimal rainfall accumulations given fast storm speeds. Given the potentially higher density of fast moving storms east of the Cascades, scattered dry thunderstorm highlights have been introduced for central and eastern Oregon into extreme northwest Nevada. ..Squitieri.. 07/29/2025 ...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 0217 AM CDT Tue Jul 29 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN OREGON INTO EXTREME NORTHWEST NEVADA... ...Synopsis... Upper ridging will persist across the central and eastern CONUS while broad mid-level troughing remains in place along the West Coast tomorrow (Wednesday). Mid-level moisture will continue to pivot around the mid-level trough, toward the upper ridge, from the Pacific Northwest into the northern Rockies. An embedded mid-level impulse, accompanied by stronger flow aloft, will traverse the northwest Great Basin and move northwestward into the Pacific Northwest through the late afternoon to overnight period. As this occurs, enhanced lift will promote at least scattered thunderstorms over portions of the Pacific Northwest. Broad isolated dry-thunderstorm highlights are in place for areas that will experience lightning over dry fuels. Along and east of the Cascades, forecast soundings depict inverted-v thermodynamic profiles, which would support high-based, potentially fast-moving thunderstorms. These storms may pass over fuels receptive to fire spread, but with minimal rainfall accumulations given fast storm speeds. Given the potentially higher density of fast moving storms east of the Cascades, scattered dry thunderstorm highlights have been introduced for central and eastern Oregon into extreme northwest Nevada. ..Squitieri.. 07/29/2025 ...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 0217 AM CDT Tue Jul 29 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN OREGON INTO EXTREME NORTHWEST NEVADA... ...Synopsis... Upper ridging will persist across the central and eastern CONUS while broad mid-level troughing remains in place along the West Coast tomorrow (Wednesday). Mid-level moisture will continue to pivot around the mid-level trough, toward the upper ridge, from the Pacific Northwest into the northern Rockies. An embedded mid-level impulse, accompanied by stronger flow aloft, will traverse the northwest Great Basin and move northwestward into the Pacific Northwest through the late afternoon to overnight period. As this occurs, enhanced lift will promote at least scattered thunderstorms over portions of the Pacific Northwest. Broad isolated dry-thunderstorm highlights are in place for areas that will experience lightning over dry fuels. Along and east of the Cascades, forecast soundings depict inverted-v thermodynamic profiles, which would support high-based, potentially fast-moving thunderstorms. These storms may pass over fuels receptive to fire spread, but with minimal rainfall accumulations given fast storm speeds. Given the potentially higher density of fast moving storms east of the Cascades, scattered dry thunderstorm highlights have been introduced for central and eastern Oregon into extreme northwest Nevada. ..Squitieri.. 07/29/2025 ...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 0217 AM CDT Tue Jul 29 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN OREGON INTO EXTREME NORTHWEST NEVADA... ...Synopsis... Upper ridging will persist across the central and eastern CONUS while broad mid-level troughing remains in place along the West Coast tomorrow (Wednesday). Mid-level moisture will continue to pivot around the mid-level trough, toward the upper ridge, from the Pacific Northwest into the northern Rockies. An embedded mid-level impulse, accompanied by stronger flow aloft, will traverse the northwest Great Basin and move northwestward into the Pacific Northwest through the late afternoon to overnight period. As this occurs, enhanced lift will promote at least scattered thunderstorms over portions of the Pacific Northwest. Broad isolated dry-thunderstorm highlights are in place for areas that will experience lightning over dry fuels. Along and east of the Cascades, forecast soundings depict inverted-v thermodynamic profiles, which would support high-based, potentially fast-moving thunderstorms. These storms may pass over fuels receptive to fire spread, but with minimal rainfall accumulations given fast storm speeds. Given the potentially higher density of fast moving storms east of the Cascades, scattered dry thunderstorm highlights have been introduced for central and eastern Oregon into extreme northwest Nevada. ..Squitieri.. 07/29/2025 ...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 0217 AM CDT Tue Jul 29 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN OREGON INTO EXTREME NORTHWEST NEVADA... ...Synopsis... Upper ridging will persist across the central and eastern CONUS while broad mid-level troughing remains in place along the West Coast tomorrow (Wednesday). Mid-level moisture will continue to pivot around the mid-level trough, toward the upper ridge, from the Pacific Northwest into the northern Rockies. An embedded mid-level impulse, accompanied by stronger flow aloft, will traverse the northwest Great Basin and move northwestward into the Pacific Northwest through the late afternoon to overnight period. As this occurs, enhanced lift will promote at least scattered thunderstorms over portions of the Pacific Northwest. Broad isolated dry-thunderstorm highlights are in place for areas that will experience lightning over dry fuels. Along and east of the Cascades, forecast soundings depict inverted-v thermodynamic profiles, which would support high-based, potentially fast-moving thunderstorms. These storms may pass over fuels receptive to fire spread, but with minimal rainfall accumulations given fast storm speeds. Given the potentially higher density of fast moving storms east of the Cascades, scattered dry thunderstorm highlights have been introduced for central and eastern Oregon into extreme northwest Nevada. ..Squitieri.. 07/29/2025 ...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 0217 AM CDT Tue Jul 29 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN OREGON INTO EXTREME NORTHWEST NEVADA... ...Synopsis... Upper ridging will persist across the central and eastern CONUS while broad mid-level troughing remains in place along the West Coast tomorrow (Wednesday). Mid-level moisture will continue to pivot around the mid-level trough, toward the upper ridge, from the Pacific Northwest into the northern Rockies. An embedded mid-level impulse, accompanied by stronger flow aloft, will traverse the northwest Great Basin and move northwestward into the Pacific Northwest through the late afternoon to overnight period. As this occurs, enhanced lift will promote at least scattered thunderstorms over portions of the Pacific Northwest. Broad isolated dry-thunderstorm highlights are in place for areas that will experience lightning over dry fuels. Along and east of the Cascades, forecast soundings depict inverted-v thermodynamic profiles, which would support high-based, potentially fast-moving thunderstorms. These storms may pass over fuels receptive to fire spread, but with minimal rainfall accumulations given fast storm speeds. Given the potentially higher density of fast moving storms east of the Cascades, scattered dry thunderstorm highlights have been introduced for central and eastern Oregon into extreme northwest Nevada. ..Squitieri.. 07/29/2025 ...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 0217 AM CDT Tue Jul 29 2025 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN OREGON INTO EXTREME NORTHWEST NEVADA... ...Synopsis... Upper ridging will persist across the central and eastern CONUS while broad mid-level troughing remains in place along the West Coast tomorrow (Wednesday). Mid-level moisture will continue to pivot around the mid-level trough, toward the upper ridge, from the Pacific Northwest into the northern Rockies. An embedded mid-level impulse, accompanied by stronger flow aloft, will traverse the northwest Great Basin and move northwestward into the Pacific Northwest through the late afternoon to overnight period. As this occurs, enhanced lift will promote at least scattered thunderstorms over portions of the Pacific Northwest. Broad isolated dry-thunderstorm highlights are in place for areas that will experience lightning over dry fuels. Along and east of the Cascades, forecast soundings depict inverted-v thermodynamic profiles, which would support high-based, potentially fast-moving thunderstorms. These storms may pass over fuels receptive to fire spread, but with minimal rainfall accumulations given fast storm speeds. Given the potentially higher density of fast moving storms east of the Cascades, scattered dry thunderstorm highlights have been introduced for central and eastern Oregon into extreme northwest Nevada. ..Squitieri.. 07/29/2025 ...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 0140 AM CDT Tue Jul 29 2025 Valid 291200Z - 301200Z ...Synopsis... An upper ridge will persist across the CONUS today, with mid-level moisture poised to pivot around the western extent of the ridge over portions of the northwestern Great Basin into the Pacific Northwest. Here, high-based thunderstorms should develop atop a dry boundary layer, with a mix of wet and dry thunderstorms expected. Isolated dry thunderstorm highlights have been issued given the presence of dry fuels. ..Squitieri.. 07/29/2025 ...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 0140 AM CDT Tue Jul 29 2025 Valid 291200Z - 301200Z ...Synopsis... An upper ridge will persist across the CONUS today, with mid-level moisture poised to pivot around the western extent of the ridge over portions of the northwestern Great Basin into the Pacific Northwest. Here, high-based thunderstorms should develop atop a dry boundary layer, with a mix of wet and dry thunderstorms expected. Isolated dry thunderstorm highlights have been issued given the presence of dry fuels. ..Squitieri.. 07/29/2025 ...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 0140 AM CDT Tue Jul 29 2025 Valid 291200Z - 301200Z ...Synopsis... An upper ridge will persist across the CONUS today, with mid-level moisture poised to pivot around the western extent of the ridge over portions of the northwestern Great Basin into the Pacific Northwest. Here, high-based thunderstorms should develop atop a dry boundary layer, with a mix of wet and dry thunderstorms expected. Isolated dry thunderstorm highlights have been issued given the presence of dry fuels. ..Squitieri.. 07/29/2025 ...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 0140 AM CDT Tue Jul 29 2025 Valid 291200Z - 301200Z ...Synopsis... An upper ridge will persist across the CONUS today, with mid-level moisture poised to pivot around the western extent of the ridge over portions of the northwestern Great Basin into the Pacific Northwest. Here, high-based thunderstorms should develop atop a dry boundary layer, with a mix of wet and dry thunderstorms expected. Isolated dry thunderstorm highlights have been issued given the presence of dry fuels. ..Squitieri.. 07/29/2025 ...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 0140 AM CDT Tue Jul 29 2025 Valid 291200Z - 301200Z ...Synopsis... An upper ridge will persist across the CONUS today, with mid-level moisture poised to pivot around the western extent of the ridge over portions of the northwestern Great Basin into the Pacific Northwest. Here, high-based thunderstorms should develop atop a dry boundary layer, with a mix of wet and dry thunderstorms expected. Isolated dry thunderstorm highlights have been issued given the presence of dry fuels. ..Squitieri.. 07/29/2025 ...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 0140 AM CDT Tue Jul 29 2025 Valid 291200Z - 301200Z ...Synopsis... An upper ridge will persist across the CONUS today, with mid-level moisture poised to pivot around the western extent of the ridge over portions of the northwestern Great Basin into the Pacific Northwest. Here, high-based thunderstorms should develop atop a dry boundary layer, with a mix of wet and dry thunderstorms expected. Isolated dry thunderstorm highlights have been issued given the presence of dry fuels. ..Squitieri.. 07/29/2025 ...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 0140 AM CDT Tue Jul 29 2025 Valid 291200Z - 301200Z ...Synopsis... An upper ridge will persist across the CONUS today, with mid-level moisture poised to pivot around the western extent of the ridge over portions of the northwestern Great Basin into the Pacific Northwest. Here, high-based thunderstorms should develop atop a dry boundary layer, with a mix of wet and dry thunderstorms expected. Isolated dry thunderstorm highlights have been issued given the presence of dry fuels. ..Squitieri.. 07/29/2025 ...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 0140 AM CDT Tue Jul 29 2025 Valid 291200Z - 301200Z ...Synopsis... An upper ridge will persist across the CONUS today, with mid-level moisture poised to pivot around the western extent of the ridge over portions of the northwestern Great Basin into the Pacific Northwest. Here, high-based thunderstorms should develop atop a dry boundary layer, with a mix of wet and dry thunderstorms expected. Isolated dry thunderstorm highlights have been issued given the presence of dry fuels. ..Squitieri.. 07/29/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

WW 0555 Status Updates
STATUS REPORT ON WW 555 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE DSM TO 35 ENE MCW. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1831. ..GRAMS..07/29/25 ATTN...WFO...ARX...DMX...DVN... STATUS REPORT FOR WS 555 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS IAC005-011-013-017-019-023-031-037-043-045-055-061-065-067-075- 083-089-095-097-099-103-105-107-113-127-131-157-171-183-191- 290740- IA . IOWA COUNTIES INCLUDED ARE ALLAMAKEE BENTON BLACK HAWK BREMER BUCHANAN BUTLER CEDAR CHICKASAW CLAYTON CLINTON DELAWARE DUBUQUE FAYETTE FLOYD GRUNDY HARDIN HOWARD IOWA JACKSON JASPER JOHNSON JONES KEOKUK LINN MARSHALL MITCHELL POWESHIEK TAMA WASHINGTON WINNESHIEK WIC023-043-081-103-123-290740- WI . WISCONSIN COUNTIES INCLUDED ARE Read more