Severe

Significant threat to life or property

Wisconsin Severe Flood Watch | Effective 09/19/2026 01:56

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southeast Wisconsin, including the following counties, in south central Wisconsin, Dane, Green, Iowa, Lafayette and Rock. In southeast Wisconsin, Jefferson, Kenosha, Milwaukee, Racine, Walworth and Waukesha. * WHEN...Through early this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS...

Wisconsin Severe Flood Watch | Effective 09/19/2026 01:56

* WHAT...Flooding caused by excessive rainfall continues to be 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, Columbia, Green Lake, Marquette and Sauk. In southeast Wisconsin, Dodge, Ozaukee and Washington. * WHEN...Until 1 PM CDT this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers,

Illinois, Indiana Severe Flood Watch | Effective 09/19/2026 01:39

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Illinois, including the following areas, Central Cook, De Kalb, DuPage, Kane, Kendall, Lake IL, Lee, Northern Cook, Northern Will and Southern Cook and northwest Indiana, including the following areas, Lake IN and Porter. * WHEN...Until 1 PM CDT this afternoon. * 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.

Illinois Severe Flood Watch | Effective 09/19/2026 01:39

* WHAT...Flash flooding caused by excessive rainfall continues to be 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...Until 1 PM CDT this afternoon. * IMPACTS...Creeks and streams may rise out of their banks. Roads and streets may be flooded. * ADDITIONAL DETAILS... - Showers and thunderstorms will produce heavy rain this morning

Montana Severe Flood Watch | Effective 09/19/2026 01:01

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...A portion of northeast Montana, including the following counties, Dawson, Garfield, Petroleum, Prairie and Wibaux. * WHEN...From 6 AM MDT this morning through Sunday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Heavy rain is expected along and south of MT 200 between Winnett,

Minnesota Severe Flash Flood Warning | Effective 09/19/2026 01:13

FFWARX The National Weather Service in La Crosse has extended the * Flash Flood Warning for... Southern Fillmore County in southeastern Minnesota... * Until 445 AM CDT. * At 313 AM CDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 2.5 and 5 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms.

Idaho, Wyoming, Montana Severe Flood Watch | Effective 09/19/2026 00:34

* WHAT...Flash flooding caused by moderate to heavy rainfall is possible, especially in terrain and poor drainage areas. * WHERE...Portions of central, north central, and northwest Wyoming, including the following areas, in central Wyoming, Owl Creek and Bridger Mountains. In north central Wyoming, Bighorn Mountains Southeast, Bighorn Mountains West, Northeast Johnson County and Southeast Johnson County. In northwest Wyoming, Absaroka Mountains, Cody Foothills and Yellowstone National Park.

Michigan Severe Flood Watch | Effective 09/19/2026 00:37

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southwest Michigan, including the following counties, in south central Michigan, Calhoun. In southwest Michigan, Allegan, Barry, Kalamazoo and Van Buren. * WHEN...Through Sunday morning. * 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...

Minnesota Severe Flood Warning | Effective 09/19/2026 00:43

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Houston County in southeastern Minnesota... * WHEN...Until 600 AM CDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. Streams continue to rise due to excess runoff from earlier rainfall. * ADDITIONAL DETAILS... - At 239 AM CDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Flooding is ongoing or expected

Wisconsin Severe Flash Flood Warning | Effective 09/19/2026 00:18

At 218 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2.5 and 4.5 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas.
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