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Ended official alertUpdated

Severe Thunderstorm Warning for Dallas, IA; Madison, IA; Polk, IA +1 more

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Applies to
Dallas, Madison, Polk, Warren
Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

SVRDMX The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Southwestern Polk County in central Iowa... Northeastern Madison County in south central Iowa... Eastern Dallas County in central Iowa... Northwestern Warren County in south central Iowa... * Until 915 PM CDT. * At...

What the bulletin says to do

For your protection move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 1000 PM CDT for central and south central Iowa.

Full official description

Bulletin details

SVRDMX The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Southwestern Polk County in central Iowa... Northeastern Madison County in south central Iowa... Eastern Dallas County in central Iowa... Northwestern Warren County in south central Iowa... * Until 915 PM CDT. * At 838 PM CDT, severe thunderstorms were located along a line extending from near Dallas Center to near Grimes to near Saylorville Lake, moving southeast at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Des Moines, West Des Moines, Ankeny, Urbandale, Johnston, Clive, Altoona, Waukee, Norwalk, Pleasant Hill, Grimes, Adel, Windsor Heights, Polk City, Saylorville, Dallas Center, Granger, De Soto, Van Meter, and Southridge Mall. This includes the following highways... Interstate 35 between mile markers 62 and 72, and between mile markers 87 and 91. Interstate 80 between mile markers 110 and 142. Interstate 235 between mile markers 1 and 14.

Lifecycle record

Official revisions

1 captured
  1. Alert

    Severe Thunderstorm Warning issued July 20 at 8:38PM CDT until July 20 at 9:15PM CDT by NWS Des Moines IA

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Des Moines IA. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Alert
Last collected
Methodology and corrections