May 8th storms
Thursday May 8th severe storms impacted parts the local area particularity across Warren and Polk Counties where significant hail over golf ball sized and high winds were reported. Which is the main storm of focus because it was the only one that produced severe weather locally. The cause of the storms was a strong cold front slicing into a warm, humid summer-like airmass in which produce widespread 90s yesterday. The storm in question started in far Southern Iowa near Lamoni and became strong as it entered Madison county from the south. The storm developed an small but intense hail core as it moved through Madison County between St Charles and Winterset. Quarter sized hail and 57MPH winds were reported near East Peru and Patterson. As it moved north the storm intensified just as it entered the metro area. Ping pong ball to golf ball sized hail was reported across several locations of the Southwest and west central metro locations first starting in Cumming and Norwalk The cell followed 63rd Ave into West Des Moines
where it produced Hen egg sized hail ( 2.00" ) The storm continued to north along Merle Hay Road and produced Golf ball to hen egg sized hail in parts of Windsor Heights, Clive, Urbandale and Northwest sides of Des Moines Beaverdale area. The largest hail reported was Baseball sized on northern edges of the city of Urbandale. The storm quickly lost steam after leaving this area just before it impacted Ankeny. A list of all reports is seen below. There was no actual damage reported with the hail but I have reason to believe there likely is some that has not been reported.
4 miles N East Peru 1.00" hail
2 miles SE Patterson 1.00" 57MPH wind gust
11/2 miles S Cumming 1.75" ( golf ball ) sized hail 60MPH winds
S Norwalk 1.50" ( ping pong ball) sized hail 60MPH wind gust
West Des Moines Hen egg ( 2.00" ) sized hail
Windsor Heights 1.50" ( ping pong ball) sized hail
Clive Hen Egg ( 2.00" ) sized hail
Urbandale 1.75" ( Golf ball ) sized hail
N Urbandale 2.75" ( Baseball ) sized hail
Saylorville 1.00" ( Quarter sized hail )
Wednesday May 7th ahead of the system that produced the storms above was a warm and windy day as our temperatures from the south flowed in ahead the storm system. The warm front quickly moved through in the morning hours and by afternoon widespread upper 80s to lower 90s were reported across much of central and southern Iowa. Northeast Iowa staid in the upper 60s at this same time, while parts of Southwest Iowa including Shennandoah has a high of 99.F, 1 degree shy of 100.F!
Local highs reported
Perry 92.F
Des Moines International 90.F
Fairmount Park 90.F
Boone 90.F
Pella 89.F
Ankeny 88.F
Newton 88.F
Knoxville 86.F
Ames 86.F
Marshalltown 86.F
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