Alert archive / Iowa / River Flood Warnings in 2009

River Flood Warning 123, NWS Quad Cities, IA

October 23, 2009Johnson County, Washington County, Iowa

NWS Quad Cities, IA issued this river flood warning at Oct 23, 2009, 4:38 AM CDT for Johnson County, Washington County, Iowa. It took effect at Oct 23, 2009, 7:40 AM CDT. It was in force for 45 hr.

The area

The counties it named.

The facts

Issued
Oct 23, 2009, 4:38 AM CDT (09:38 UTC)
In effect from
Oct 23, 2009, 7:40 AM CDT
Expired
Oct 25, 2009, 4:17 AM CDT
In force
45 hr
Issued by
NWS Quad Cities, IA
Flood severity
Minor

Counties Johnson County, IA, Washington County, IA

The radar

The Quad Cities radar (KDVN), 90 km from the middle of the area, began a volume at 09:41 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 river

Written for the forecast point English River at Kalona (KALI4). The gauge peaked at 15.97 ft at Oct 23, 2009, 10:00 PM CDT.

actionminormoderate5101510/2310/2410/2510/26
Action stage
13 ft
Minor stage
14 ft
Moderate stage
16 ft
Major stage
18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05455500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 23, 1:23 AM CDTRiver Flood WarningDVNClark27 hr

Nearby

River Flood Warnings in Iowa, 2009Every river flood warning in 2009

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; the gauge from the NWS water service and the USGS.