If outdoors, consider seeking shelter inside a building.
At 729 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 5 miles north of Mitchellville to near
Saylorville Lake to near Waukee. Movement was southeast at 25 mph.
HAZARD...Wind gusts up to 50 mph and additional rainfall up to one
inch.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Ponding of water on roadways, low
visibilities, and rises in small streams and creeks.
Locations impacted include...
Des Moines, West Des Moines, Ankeny, Urbandale, Johnston, Clive,
Altoona, Waukee, Norwalk, Pleasant Hill, Grimes, Windsor Heights,
Carlisle, Bondurant, Polk City, Saylorville, Mitchellville, Colfax,
Prairie City, and Dallas Center.
This includes the following highways...
Interstate 35 between mile markers 67 and 72, and between mile
markers 87 and 102.
Interstate 80 between mile markers 119 and 157.
Interstate 235 between mile markers 1 and 14.