Extreme

Extraordinary threat to life or property

Iowa, Nebraska Tornado Watch | Effective 05/17/2026 18:31

TORNADO WATCH 213 REMAINS VALID UNTIL 10 PM CDT THIS EVENING FOR<br /> THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 1 COUNTY IN WEST CENTRAL IOWA MONONA IN NEBRASKA THIS WATCH INCLUDES 3 COUNTIES IN EAST CENTRAL NEBRASKA BURT IN NORTHEAST NEBRASKA CUMING THURSTON THIS INCLUDES THE CITIES OF DECATUR, LYONS, MACY, MAPLETON,<br /> OAKLAND, ONAWA, PENDER, TEKAMAH, WALTHILL, WEST POINT, WINNEBAGO,<br /> AND WISNER.

Iowa, Nebraska Tornado Watch | Effective 05/17/2026 18:31

TORNADO WATCH 214 REMAINS VALID UNTIL 11 PM CDT THIS EVENING FOR<br /> THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 7 COUNTIES IN SOUTHWEST IOWA FREMONT HARRISON MILLS<br /> MONTGOMERY PAGE POTTAWATTAMIE<br /> SHELBY IN NEBRASKA THIS WATCH INCLUDES 17 COUNTIES IN EAST CENTRAL NEBRASKA BUTLER DODGE DOUGLAS<br /> SARPY SAUNDERS WASHINGTON IN SOUTHEAST NEBRASKA CASS GAGE JEFFERSON<br />

Iowa Tornado Warning | Effective 05/17/2026 18:35

TORDMX The National Weather Service in Des Moines has issued a * Tornado Warning for...<br /> Southern Pocahontas County in northwestern Iowa...<br /> Northern Sac County in west central Iowa...<br /> Northern Calhoun County in west central Iowa... * Until 915 PM CDT. * At 834 PM CDT, a severe thunderstorm capable of producing a tornado<br /> was located over Early, or 10 miles west of Sac City, moving east<br /> at 55 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without<br />

Iowa Tornado Warning | Effective 05/17/2026 18:44

At 844 PM CDT, a severe squall line capable of producing both<br /> tornadoes and extensive straight line wind damage was located near<br /> Royal, or 12 miles southwest of Spencer In Clay County, moving east<br /> at 60 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without<br /> shelter. Mobile homes will be damaged or destroyed. Damage<br /> to roofs, windows, and vehicles will occur. Tree damage is<br /> likely.

Iowa Tornado Warning | Effective 05/17/2026 18:45

At 844 PM CDT, a severe thunderstorm capable of producing a tornado<br /> was located 5 miles northwest of Persia, or 16 miles west of Harlan,<br /> moving northeast at 50 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without<br /> shelter. Mobile homes will be damaged or destroyed. Damage<br /> to roofs, windows, and vehicles will occur. Tree damage is<br /> likely. This tornadic thunderstorm will remain over mainly rural areas of<br />

Iowa Tornado Warning Extreme | Effective 05-17-2026 18:26

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> TORFSD The National Weather Service in Sioux Falls has issued a * Tornado Warning for...<br /> Northeastern Cherokee County in northwestern Iowa...<br /> Northwestern Buena Vista County in northwestern Iowa...<br /> Southwestern Clay County in northwestern Iowa...<br /> Southeastern O'Brien County in northwestern Iowa... * Until 915 PM CDT. * At 826 PM CDT, severe thunderstorms capable of producing both<br />

Iowa Tornado Warning Extreme | Effective 05-17-2026 18:28

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> TOROAX The National Weather Service in Omaha has issued a * Tornado Warning for...<br /> Northwestern Pottawattamie County in southwestern Iowa...<br /> Eastern Harrison County in southwestern Iowa... * Until 915 PM CDT. * At 828 PM CDT, a severe thunderstorm capable of producing a tornado<br /> was located over Missouri Valley, or 11 miles east of Blair, moving<br /> northeast at 45 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation.

Nebraska Tornado Warning Extreme | Effective 05-17-2026 18:17

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> TOROAX The National Weather Service in Omaha has issued a * Tornado Warning for...<br /> East central Lancaster County in southeastern Nebraska...<br /> Northwestern Otoe County in southeastern Nebraska...<br /> Southeastern Cass County in southeastern Nebraska... * Until 900 PM CDT. * At 816 PM CDT, a severe thunderstorm capable of producing a tornado<br /> was located over Bennet, or 13 miles southeast of Lincoln, moving<br /> northeast at 50 mph.

Iowa Tornado Watch | Effective 05/17/2026 18:07

TORNADO WATCH 216 REMAINS VALID UNTIL 1 AM CDT MONDAY FOR THE<br /> FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 13 COUNTIES IN NORTH CENTRAL IOWA BUTLER CERRO GORDO FRANKLIN<br /> HANCOCK HUMBOLDT KOSSUTH<br /> WINNEBAGO WORTH WRIGHT IN NORTHEAST IOWA BREMER IN NORTHWEST IOWA EMMET PALO ALTO POCAHONTAS THIS INCLUDES THE CITIES OF ALGONA, ALLISON, APLINGTON, BELMOND,<br /> BRITT, CLARION, CLARKSVILLE, CLEAR LAKE, DUMONT, EAGLE GROVE,<br />
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