Extreme

Extraordinary threat to life or property

Iowa Tornado Warning Extreme | Effective 05-17-2026 18:54

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 /> Dickinson County in northwestern Iowa...<br /> North central Clay County in northwestern Iowa... * Until 945 PM CDT. * At 853 PM CDT, severe thunderstorms capable of producing both<br /> tornadoes and extensive straight line wind damage were located near<br /> West Okoboji, or 10 miles southwest of Spirit Lake, moving<br /> northeast at 30 mph.

Iowa Tornado Warning Extreme | Effective 05-17-2026 18:59

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> TORDMX The National Weather Service in Des Moines has issued a * Tornado Warning for...<br /> Emmet County in northwestern Iowa...<br /> Northern Palo Alto County in northwestern Iowa... * Until 945 PM CDT. * At 859 PM CDT, a severe thunderstorm capable of producing a tornado<br /> was located near Dickens, or 7 miles southeast of Spencer In Clay<br /> County, moving northeast at 55 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation.

Iowa Tornado Warning | Effective 05/17/2026 18:48

TORFSD The National Weather Service in Sioux Falls has issued a * Tornado Warning for...<br /> Southeastern Dickinson County in northwestern Iowa...<br /> Clay County in northwestern Iowa... * Until 915 PM CDT. * At 847 PM CDT, severe thunderstorms capable of producing both<br /> tornadoes and extensive straight line wind damage were located near<br /> Greenville, or 9 miles southwest of Spencer In Clay County, moving<br /> northeast at 70 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation.

Iowa Tornado Warning | Effective 05/17/2026 18:53

At 852 PM CDT, a severe thunderstorm capable of producing a tornado<br /> was located 5 miles north of Lytton, or 7 miles northeast of Sac<br /> City, moving east at 50 mph. HAZARD...Tornado. 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 dangerous storm will be near...<br /> Pomeroy and Jolley around 900 PM CDT.<br />

Iowa Tornado Warning | Effective 05/17/2026 18:54

TORFSD The National Weather Service in Sioux Falls has issued a * Tornado Warning for...<br /> Dickinson County in northwestern Iowa...<br /> North central Clay County in northwestern Iowa... * Until 945 PM CDT. * At 853 PM CDT, severe thunderstorms capable of producing both<br /> tornadoes and extensive straight line wind damage were located near<br /> West Okoboji, or 10 miles southwest of Spirit Lake, moving<br /> northeast at 30 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation.

Iowa Tornado Warning | Effective 05/17/2026 18:58

At 857 PM CDT, a confirmed tornado was located over Glenwood, or 11<br /> miles southeast of Offutt AFB, moving northeast at 50 mph. HAZARD...Damaging tornado and quarter size hail. SOURCE...Public confirmed tornado on the south side of Plattsmouth<br /> around 8:48 PM. 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. Locations impacted include...<br />

Iowa Tornado Warning | Effective 05/17/2026 18:59

TORDMX The National Weather Service in Des Moines has issued a * Tornado Warning for...<br /> Emmet County in northwestern Iowa...<br /> Northern Palo Alto County in northwestern Iowa... * Until 945 PM CDT. * At 859 PM CDT, a severe thunderstorm capable of producing a tornado<br /> was located near Dickens, or 7 miles southeast of Spencer In Clay<br /> County, moving northeast at 55 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without<br />

Iowa, Nebraska Tornado Warning Extreme | Effective 05-17-2026 18:46

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 Mills County in southwestern Iowa...<br /> Northeastern Cass County in southeastern Nebraska... * Until 915 PM CDT. * At 846 PM CDT, a severe thunderstorm capable of producing a tornado<br /> was located over Plattsmouth, or 8 miles south of Offutt AFB,<br /> moving northeast at 50 mph. HAZARD...Tornado and quarter size hail. SOURCE...Radar indicated rotation.

Iowa Tornado Warning Extreme | Effective 05-17-2026 18:48

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 /> Southeastern Dickinson County in northwestern Iowa...<br /> Clay County in northwestern Iowa... * Until 915 PM CDT. * At 847 PM CDT, severe thunderstorms capable of producing both<br /> tornadoes and extensive straight line wind damage were located near<br /> Greenville, or 9 miles southwest of Spencer In Clay County, moving<br /> northeast at 70 mph.

Iowa Tornado Warning Extreme | Effective 05-17-2026 18:35

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> 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.
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