Iowa Severe Thunderstorm Warning Severe | Effective 05-17-2026 18:21

Headline: 
Severe Thunderstorm Warning issued May 17 at 8:21PM CDT until May 17 at 9:15PM CDT by NWS Sioux Falls SD
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 17, 2026 - 6:21pm
Expires: 
May 17, 2026 - 7:15pm
Description: 
SVRFSD The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... Cherokee County in northwestern Iowa... Northeastern Woodbury County in west central Iowa... Southeastern Osceola County in northwestern Iowa... Dickinson County in northwestern Iowa... Southeastern Plymouth County in northwestern Iowa... Buena Vista County in northwestern Iowa... Clay County in northwestern Iowa... O'Brien County in northwestern Iowa... Ida County in west central Iowa... * Until 915 PM CDT. * At 819 PM CDT, severe thunderstorms were located along a line extending from near Paullina to near Aurelia to near Galva, moving northeast at 65 mph. THESE ARE DESTRUCTIVE STORMS FOR QUIMBY, CHEROKEE, WASHTA, AND AURELIA. HAZARD...80 mph wind gusts and quarter size hail. SOURCE...Mesonet. At 754 PM CDT, a 74 mph gust was reported via personal weather station west of Correctionville, IA. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be heavily damaged. Expect considerable damage to roofs, windows, and vehicles. Extensive tree damage and power outages are likely. * Severe thunderstorms will be near... Storm Lake, Alta, Paullina, Primghar, Sutherland, and Peterson around 825 PM CDT. Lakeside, Linn Grove, and Truesdale around 830 PM CDT. Hartley, Sioux Rapids, and Royal around 835 PM CDT. Other locations in the path of these severe thunderstorms include Spencer In Clay County, Albert City, Everly, Marathon, Webb, Greenville, Fostoria, Milford, Lost Island Lake, Arnolds Park, Terril and West Okoboji.
Instruction: 
This is an EXTREMELY DANGEROUS SITUATION with tornado like wind speeds expected. Mobile homes and high profile vehicles are especially susceptible to winds of this magnitude and may be overturned. For your protection move to an interior room on the lowest floor of a building. These storms have the potential to cause serious injury and significant property damage.
SNM:TORMENTA DE VIENTO DESTRUCTIVA en esta area hasta 915 PM CDT. Tome refugio ahora
Servicio Nacional de Meteorologia: AVISO DE TORMENTA SEVERA en efecto para esta area hasta las 9:15 PM CDT por vientos DESTRUCTIVOS de 80 mph. Tome refugio en un edificio, alejado de las ventanas. Escombros arrastrados por el viento podrian ser mortales para aquellos que se encuentran sin refugio.
Area Description: 
Buena Vista, IA; Cherokee, IA; Clay, IA; Dickinson, IA; Ida, IA; O'Brien, IA; Osceola, IA; Plymouth, IA; Woodbury, IA
Forcast Office: 
NWS Sioux Falls SD
Sender: 
w-nws.webmaster@noaa.gov