Severe

Significant threat to life or property

Idaho, Wyoming, Montana Severe Flood Watch | Effective 09/18/2026 12:10

* WHAT...Flash flooding caused by moderate to heavy rainfall is possible, especially in terrain and poor drainage areas. * WHERE...Northwest Wyoming, including Yellowstone National Park. * WHEN...Through Sunday afternoon. * IMPACTS...Heavy rainfall may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage areas and around steep terrain. * ADDITIONAL DETAILS... - A slow moving weather system will move across Wyoming today

North Carolina Severe Flash Flood Warning | Effective 09/18/2026 12:10

FFWRAH The National Weather Service in Raleigh has issued a * Flash Flood Warning for... Eastern Davidson County in central North Carolina... Southwestern Guilford County in central North Carolina... Northwestern Randolph County in central North Carolina... * Until 615 PM EDT. * At 310 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen near High Point. Additional rainfall amounts of 1 to 2

Illinois, Indiana Severe Flood Watch | Effective 09/18/2026 11:47

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Illinois, including the following areas, Cook, De Kalb, DuPage, Kane, Kendall, Lake, Lee, and Northern Will and northwest Indiana, including the following areas, Lake and Porter. * WHEN...From late tonight through Saturday morning. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. * ADDITIONAL DETAILS...

Illinois Severe Flood Watch | Effective 09/18/2026 11:47

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of north central and northeast Illinois, including the following counties, in north central Illinois, Boone, Ogle and Winnebago. In northeast Illinois, McHenry. * WHEN...From 1 AM CDT Saturday through Saturday morning. * IMPACTS...Creeks and streams may rise out of their banks. Roads and streets may be flooded. * ADDITIONAL DETAILS... - Showers and thunderstorms overnight into Saturday morning may

North Carolina Severe Severe Thunderstorm Warning | Effective 09/18/2026 11:54

At 254 PM EDT, a severe thunderstorm was located near Mocksville, or near Cooleemee, moving south at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to trees and power lines. Locations impacted include... Mocksville. For your protection move to an interior room on the lowest floor of a building.

Iowa, Illinois Severe Flood Watch | Effective 09/18/2026 11:56

* WHAT...Flooding and flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northwest Illinois, including the following county, Whiteside and east central Iowa, including the following counties, Clinton and Jones. * WHEN...From 1 AM CDT Saturday through Saturday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS...

Iowa, Illinois Severe Flood Watch | Effective 09/18/2026 11:56

* WHAT...Flooding and flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northwest Illinois, including the following counties, Carroll, Jo Daviess and Stephenson and Iowa, including the following counties, Buchanan, Delaware, Dubuque and Jackson. * WHEN...From 1 AM CDT Saturday through Saturday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.

North Carolina Severe Severe Thunderstorm Warning | Effective 09/18/2026 11:57

SVRRAH The National Weather Service in Raleigh has issued a * Severe Thunderstorm Warning for... Eastern Randolph County in central North Carolina... Southwestern Guilford County in central North Carolina... West central Chatham County in central North Carolina... * Until 345 PM EDT. * At 257 PM EDT, a severe thunderstorm was located near Greensboro, moving southeast at 25 mph. HAZARD...70 mph wind gusts. SOURCE...Observed. At 2:31pm, Greensboro International Airport reported a wind gust to 69 mph.

Wisconsin Severe Flood Watch | Effective 09/18/2026 11:37

* WHAT...Flooding and flash flooding caused by excessive rainfall are possible. * WHERE...Portions of east central, south central, and southeast Wisconsin, including the following counties, in east central Wisconsin, Fond du Lac and Sheboygan. In south central Wisconsin, Green Lake and Marquette. In southeast Wisconsin, Dodge, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and Waukesha. * WHEN...From 1 AM CDT Saturday through Saturday afternoon.

Wisconsin Severe Flood Watch | Effective 09/18/2026 11:37

* WHAT...Flooding and flash flooding caused by excessive rainfall are possible. * WHERE...A portion of south central Wisconsin, including the following counties, Columbia, Dane, Green, Iowa, Lafayette, Rock and Sauk. * WHEN...From 1 AM CDT Saturday through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris.
Subscribe to RSS - Severe