Alert archive / Iowa / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 25, NWS Des Moines, IA

April 6, 2010Black Hawk County, Bremer County, Grundy County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Apr 6, 2010, 4:35 PM CDT for Black Hawk County, Bremer County, Grundy County, 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
Apr 6, 2010, 4:35 PM CDT (21:35 UTC)
Expired
Apr 6, 2010, 5:15 PM CDT
In force
40 min
Issued by
NWS Des Moines, IA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Black Hawk County, IA, Bremer County, IA, Grundy County, IA

The radar

The Des Moines radar (KDMX), 137 km from the middle of the area, began a volume at 21:38 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
Apr 6, 2:57 PM CDTTornado WatchSPC7 hr

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Des Moines, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 5, 6:36 PM CDT, 21 hours 59 minutes earlier.

Area forecast discussion, Apr 5, 6:36 PM CDT, 21 hours 59 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 11:39 PM CDTSevere Thunderstorm WarningDMXAdair, Cass, Guthrie35 min
Apr 6, 12:06 AM CDTSevere Thunderstorm WarningDMXAudubon, Carroll39 min
Apr 6, 12:09 AM CDTSevere Thunderstorm WarningDMXAudubon, Cass36 min
Apr 6, 12:33 AM CDTSevere Thunderstorm WarningDMXGuthrie42 min
Apr 6, 1:03 AM CDTSevere Thunderstorm WarningDMXCrawford42 min
Apr 6, 1:25 AM CDTSevere Thunderstorm WarningDMXBoone, Dallas50 min
Apr 6, 5:12 AM CDTAreal Flood AdvisoryDMXBlack Hawk, Grundy108 min
Apr 6, 5:03 PM CDTSevere Thunderstorm WarningDMXJasper, Lucas, Mahaska, Marion, Warren42 min
Apr 6, 5:11 PM CDTSevere Thunderstorm WarningDMXBlack Hawk, Bremer34 min
Apr 6, 5:44 PM CDTSevere Thunderstorm WarningDMXJasper, Mahaska, Poweshiek, Tama46 min
Apr 6, 5:57 PM CDTSevere Thunderstorm WarningDMXJasper, Poweshiek, Tama48 min
Apr 6, 6:01 PM CDTSevere Thunderstorm WarningDMXJasper, Marion26 min
Apr 6, 6:06 PM CDTSevere Thunderstorm WarningDMXWarren39 min
Apr 6, 6:08 PM CDTTornado WarningDMXPoweshiek, Tama37 min
Apr 6, 6:13 PM CDTSevere Thunderstorm WarningDMXClarke, Warren32 min
Apr 6, 6:29 PM CDTSevere Thunderstorm WarningDMXJasper, Marion, Marshall, Polk, Poweshiek46 min
Apr 6, 6:57 PM CDTSevere Thunderstorm WarningDMXJasper, Poweshiek48 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2010Every severe thunderstorm warning in 2010

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.