Alert archive / Iowa / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 170, NWS Des Moines, IA

July 28, 20234 counties in Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Jul 28, 2023, 7:50 PM CDT for 4 counties in Iowa. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 28, 2023, 7:50 PM CDT (00:50 UTC)
Expired
Jul 28, 2023, 8:30 PM CDT
In force
40 min
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Damage threat
Considerable
Hail
1.0 in
Wind
70.0 mph

Counties Jasper County, IA, Marshall County, IA, Poweshiek County, IA, Tama County, IA

The radar

The Des Moines radar (KDMX), 80 km from the middle of the area, began a volume at 00:49 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 28, 4:57 PM CDTSevere Thunderstorm WatchSPC7 hr

The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 28, 7:18 PM CDTSevere Thunderstorm WarningDMXBlack Hawk, Grundy, Marshall, Tama57 min
Jul 28, 8:24 PM CDTSevere Thunderstorm WarningDMXJasper, Marshall, Poweshiek, Tama66 min
Jul 28, 10:05 PM CDTSpecial Weather StatementDMXMahaska25 min
Jul 28, 10:34 PM CDTSevere Thunderstorm WarningDMXMahaska, Monroe, Wapello56 min
Jul 28, 11:31 PM CDTSevere Thunderstorm WarningDMXAppanoose, Davis, Monroe, Wapello44 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2023Every severe thunderstorm warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.