Alert archive / Iowa / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 322, NWS Des Moines, IA

August 13, 2010Davis County, Wapello County, Iowa

NWS Des Moines, IA issued this severe thunderstorm warning at Aug 13, 2010, 8:19 PM CDT for Davis County, Wapello County, Iowa. It was in force for 56 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: Aug 13, 2010, 8:19 PM CDT (01:19 UTC)
Expired: Aug 13, 2010, 9:15 PM CDT
In force: 56 min
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Davis County, IA, Wapello County, IA

The radar

The Des Moines radar (KDMX), 144 km from the middle of the area, began a volume at 01:20 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.

Issued	Product	Office	Lasted
Aug 13, 2:14 PM CDT	Severe Thunderstorm Watch	SPC	7 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 Aug 13, 6:22 PM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Aug 13, 6:22 PM CDT, 1 hour 57 minutes before

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Hazardous weather outlook, Aug 13, 3:55 PM CDT, 4 hours 24 minutes before

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In the hours before

Local storm report, Aug 13, 2:34 PM CDT, 5 hours 45 minutes before

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Local storm report, Aug 13, 2:45 PM CDT, 5 hours 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
245 PM CDT FRI AUG 13 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0240 PM     FLASH FLOOD      OTTUMWA                 41.02N 92.42W
08/13/2010                   WAPELLO            IA   TRAINED SPOTTER

            TRAINED SPOTTER IN OTTUMWA REPORTS WATER FLOWING THROUGH
            THE STREETS DEEP ENOUGH TO STALL MULTIPLE VEHICLES. HE
            ALSO ESTIMATED TWO INCHES OF RAIN IN THE LAST HOUR.

&&

LEE

Local storm report, Aug 13, 2:53 PM CDT, 5 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
253 PM CDT FRI AUG 13 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0235 PM     TSTM WND DMG     5 SSW ELDON             40.86N 92.27W
08/13/2010                   DAVIS              IA   LAW ENFORCEMENT

            LARGE TREE BLOWN ON GRAVEL ROAD

&&

KJUNGBLU

Local storm report, Aug 13, 3:04 PM CDT, 5 hours 15 minutes before

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Local storm report, Aug 13, 6:44 PM CDT, 1 hour 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
644 PM CDT FRI AUG 13 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0625 PM     FLASH FLOOD      5 SE RATHBUN LAKE       40.81N 92.89W
08/13/2010                   APPANOOSE          IA   LAW ENFORCEMENT

            WATER OF UNKNOWN DEPTH FLOWING OVER PAVED COUNTY ROAD J29
            AT A RAPID PACE. ROAD BEING BARRICADED.

&&

KJUNGBLU

Local storm report, Aug 13, 6:55 PM CDT, 1 hour 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
655 PM CDT FRI AUG 13 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0400 PM     FLASH FLOOD      5 W FLORIS              40.87N 92.43W
08/13/2010                   DAVIS              IA   LAW ENFORCEMENT

            BRIDGE IMPASSABLE DUE TO FLASH FLOODING. DETAILS NOT YET
            AVAILABLE.

&&

KJUNGBLU

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 13, 7:47 PM CDT	Severe Thunderstorm Warning	DMX	Appanoose, Monroe, Wayne	43 min
Aug 13, 8:01 PM CDT	Flash Flood Warning	DMX	Appanoose, Davis, Lucas, Monroe, Wapello, Wayne	2 hr
Aug 13, 10:18 PM CDT	River Flood Warning	DMX	Appanoose	30 hr

Nearby

Severe Thunderstorm Warnings in Iowa, 2010 Every 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.