WUUS53 KOAX 180156 SVROAX IAC085-133-155-165-180300- /O.NEW.KOAX.SV.W.0154.260518T0156Z-260518T0300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Omaha/Valley Nebraska 856 PM CDT Sun May 17 2026 The National Weather Service in Omaha has issued a * Severe Thunderstorm Warning for... Southeastern Monona County in west central Iowa... Pottawattamie County in southwestern Iowa... Eastern Harrison County in southwestern Iowa... Shelby County in southwestern Iowa... * Until 1000 PM CDT. * At 856 PM CDT, severe thunderstorms were located along a line extending from near Panama to 4 miles west of Hancock to 4 miles southeast of Treynor, moving east at 45 mph. HAZARD...70 mph wind gusts and penny size hail. SOURCE...Radar indicated. This storm has a history of 60 to 70 mph winds. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Eastern Council Bluffs, Harlan, Logan, Oakland, Avoca, Woodbine, Dunlap, Treynor, Underwood, Neola, Carson, Walnut, Shelby, Minden, Earling, Irwin, Persia, Defiance, Macedonia, and Panama. This includes the following highways... Interstate 29 between mile markers 43 and 47. Interstate 80 in Iowa between mile markers 5 and 48. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 1000 PM CDT for west central Iowa. A Tornado Watch also remains in effect until 1100 PM CDT for southwestern Iowa. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4150 9516 4116 9516 4116 9584 4159 9581 4192 9594 4191 9567 4187 9567 4186 9566 4186 9510 4160 9509 4160 9504 4151 9504 TIME...MOT...LOC 0156Z 252DEG 40KT 4174 9546 4140 9546 4118 9555 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...OBSERVED MAX WIND GUST...70 MPH $$ Petersen