Severe

Significant threat to life or property

Indiana, Ohio Severe Flood Warning | Effective 09/18/2026 09:46

...The Flood Warning is extended for the following rivers in Indiana... Wabash River near Bluffton IN affecting Wells County. Wabash River near Linn Grove affecting Wells and Adams Counties. ...The Flood Warning continues for the following rivers in Ohio... Indiana... Saint Marys River near Decatur affecting Van Wert, Adams and Allen IN Counties. Saint Marys River at St. Mary's River near Fort Wayne affecting Allen IN County. For the Wabash River...including Linn Grove, Bluffton IN, Wabash,

Idaho Severe Flash Flood Watch | Effective 09/18/2026 09:50

* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Wapiti, Crooked, Buckhorn burn scar areas. * WHERE...Portions of south central and southwest Idaho, including the following areas, in south central Idaho, Western Magic Valley. In southwest Idaho, Boise Mountains, Camas Prairie, Lower Treasure Valley, Upper Treasure Valley and West Central Mountains. * WHEN...Through this evening. * IMPACTS...Heavy rainfall over the Wapiti, Crooked, Buckhorn burn

Idaho Severe Flash Flood Warning | Effective 09-18-2026 09:44

FFWPIH The National Weather Service in Pocatello has issued a * Flash Flood Warning for... The Big Rock burn scar in... Southeastern Jefferson County in southeastern Idaho... South Central Madison County in southeastern Idaho... * Until 145 PM MDT. * At 1044 AM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Big Rock Burn Scar. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Already saturated and filled ditches and culverts could become quickly inundated. Flash flooding is

Idaho Severe Flood Watch | Effective 09/18/2026 09:30

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of central, eastern, and southeast Idaho, including the following areas, in central Idaho, Challis/Pahsimeroi Valleys, Frank Church Wilderness, Lost River Valley, Sawtooth/Stanley Basin, Sun Valley Region and Wood River Foothills. In eastern Idaho, Beaverhead - Lemhi Highlands, Big Hole Mountains, Centennial Mountains - Island Park and Teton Valley. In southeast Idaho, Arco/Mud Lake Desert, Bear Lake Valley, Bear River Range,

Montana Severe Flood Watch | Effective 09/18/2026 09:39

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...The Canyon Ferry Area, Helena Valley, and Meagher County Valleys in Central Montana * WHEN...From 6 PM MDT this evening through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers and thunderstorms capable of producing hourly rainfall rates of between 0.25 inch to 0.5 inch are possible. - Some locations impacted include Helena, Townsend, and White

Montana Severe Flash Flood Watch | Effective 09/18/2026 09:39

* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Horse Gulch area and burn scars from the summer of 2026. * WHERE...A portion of central Montana, including the following areas, Big Belt, Bridger and Castle Mountains, Elkhorn and Boulder Mountains and Little Belt and Highwood Mountains. * WHEN...From 6 PM MDT this evening through Saturday evening. * IMPACTS...Heavy rainfall over the Horse Gulch area and burn scars from the summer of 2026 is expected up to and during the period of

Montana Severe Flash Flood Watch | Effective 09/18/2026 09:39

* WHAT...Flash flooding and debris flows caused by excessive rainfall continue to be possible over the Sand Creek and Bobcat Lakes Burn Scars. * WHERE...A portion of southwest Montana, including the following area, Northwest Beaverhead County. * WHEN...From 3 PM MDT this afternoon through Saturday afternoon. * IMPACTS...Heavy rainfall over the Sand Creek and Bobcat Lakes Burn Scars is expected up to and during the period of the watch. Residents near the Sand Creek and Bobcat Lakes Burn Scars should

Idaho Severe Flash Flood Warning | Effective 09/18/2026 09:44

FFWPIH The National Weather Service in Pocatello has issued a * Flash Flood Warning for... The Big Rock burn scar in... Southeastern Jefferson County in southeastern Idaho... South Central Madison County in southeastern Idaho... * Until 145 PM MDT. * At 1044 AM MDT, Doppler radar indicated thunderstorms producing heavy rain over the Big Rock Burn Scar. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Already saturated and filled ditches and culverts could become quickly inundated. Flash flooding is
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