Severe

Significant threat to life or property

Wisconsin Severe Flood Watch | Effective 09/18/2026 16:11

* 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, Columbia, Dane, Green, Green Lake, Iowa, Lafayette, Marquette, Rock and Sauk. In southeast Wisconsin, Dodge, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and Waukesha. * WHEN...From 1 AM CDT Saturday through Saturday afternoon.

Colorado, Utah Severe Flash Flood Warning | Effective 09-18-2026 15:52

FFWGJT The National Weather Service in Grand Junction has issued a * Flash Flood Warning for... Southwestern Moffat County in northwestern Colorado... Western Rio Blanco County in northwestern Colorado... East Central Uintah County in northeastern Utah... * Until 745 PM MDT. * At 452 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated.

North Carolina Severe Severe Thunderstorm Warning | Effective 09/18/2026 15:46

SVRRAH The National Weather Service in Raleigh has issued a * Severe Thunderstorm Warning for... Wayne County in central North Carolina... Southwestern Wilson County in central North Carolina... Southeastern Johnston County in central North Carolina... * Until 730 PM EDT. * At 646 PM EDT, a severe thunderstorm was located 7 miles west of Fremont, or 12 miles northwest of Goldsboro, moving south at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees.

Arizona Severe Flash Flood Warning | Effective 09/18/2026 15:50

At 350 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated. IMPACT...Life threatening flash flooding of creeks and streams, normally dry washes, urban areas, highways, streets and

Colorado, Utah Severe Flash Flood Warning | Effective 09/18/2026 15:52

FFWGJT The National Weather Service in Grand Junction has issued a * Flash Flood Warning for... Southwestern Moffat County in northwestern Colorado... Western Rio Blanco County in northwestern Colorado... East Central Uintah County in northeastern Utah... * Until 745 PM MDT. * At 452 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar indicated.

, Alaska Severe Flood Watch | Effective 09/18/2026 15:52

A series of low pressures will move through the panhandle this weekend bringing prolonged rain combined with high freezing levels to increase ice melt on glacier river systems. The heavy rainfall and associated runoff will produce significant river rises with the potential of minor flooding. * WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Including the following area, Northern Inner Channels. This includes the cities of Skagway, White Pass, And Haines. * WHEN...From late Saturday night through late Sunday night.

Colorado Severe Severe Thunderstorm Warning | Effective 09/18/2026 15:55

At 455 PM MDT, a severe thunderstorm was located near Watkins, or 21 miles east of Denver, moving northeast at 20 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Eastern Aurora, Manila Village and Watkins. Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds.

Colorado Severe Severe Thunderstorm Warning | Effective 09/18/2026 15:55

SVRGJT The National Weather Service in Grand Junction has issued a * Severe Thunderstorm Warning for... West central Garfield County in west central Colorado... Southwestern Rio Blanco County in northwestern Colorado... * Until 530 PM MDT. * At 454 PM MDT, a severe thunderstorm was located 27 miles north of Fruita, or 34 miles northwest of Grand Junction, moving north at 30 mph. HAZARD...Ping pong ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect

Colorado, Utah Severe Severe Thunderstorm Warning | Effective 09/18/2026 15:58

At 458 PM MDT, a severe thunderstorm was located near Dinosaur, or 30 miles east of Vernal, moving northeast at 35 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Dinosaur, Artesia, and Blue Mountain. For your protection move to an interior room on the lowest floor of a building.

New Mexico Severe Severe Thunderstorm Warning | Effective 09/18/2026 15:30

At 430 PM MDT, a severe thunderstorm was located 11 miles south of Turley, or 15 miles southeast of Bloomfield, moving northeast at 10 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Mainly rural areas of Western Rio Arriba and East Central San Juan Counties. This includes Highway 64 between Mile Markers 82 and 86.
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