BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Quad Cities IA/IL 511 PM CDT Mon Jul 20 2026 The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for...  

Cedar County in east central Iowa...  Johnson County in east central Iowa...  Southern Benton County in east central Iowa...  Southwestern Jones County in east central Iowa...  Northern Muscatine County in east central Iowa...  Linn County in east central Iowa...  Iowa County in east central Iowa... * Until 630 PM CDT. * 

At 510 PM CDT, severe thunderstorms were located along a line  extending from Alburnett to Fairfax to near Koszta, moving  southeast at 50 mph.  

HAZARD...70 mph wind gusts and penny size hail.  SOURCE...Radar indicated.  

IMPACT...Expect considerable tree damage. Damage is likely to           mobile homes, roofs, and outbuildings. * Locations impacted include...  Cedar Rapids, Iowa City, Anamosa, Tipton, Marengo, West Branch,  Durant, Mechanicsville, Stanwood, Marion, Coralville, North  Liberty, Hiawatha, Mount Vernon, West Liberty, Robins,  Williamsburg, Wilton, Belle Plaine, and Lisbon. This includes the following highways... Interstate 80 in Iowa between mile markers 205 and 277. Interstate 380 between mile markers 1 and 34. 

PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a sturdy building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. 

A Tornado Watch remains in effect until 1000 PM CDT for southeastern, northeastern and east central Iowa. && LAT...LON 4191 9230 4204 9184 4230 9166 4194 9090      4150 9091 4150 9151 4151 9153 4152 9230 TIME...MOT...LOC 2210Z 304DEG 45KT 4212 9163 4193 9178 4182 9227 TORNADO...POSSIBLE THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...OBSERVED MAX WIND GUST...70 MPH