Alert archive / Iowa / River Flood Warnings in 2009

River Flood Warning 121, NWS Quad Cities, IA

October 22, 2009Keokuk County, Iowa

NWS Quad Cities, IA issued this river flood warning at Oct 22, 2009, 3:33 PM CDT for Keokuk County, Iowa. It took effect at Oct 23, 2009, 9:46 AM CDT. It was in force for 35 hr.

The area

The counties it named.

The facts

Issued
Oct 22, 2009, 3:33 PM CDT (20:33 UTC)
In effect from
Oct 23, 2009, 9:46 AM CDT
Expired
Oct 24, 2009, 8:56 PM CDT
In force
35 hr
Issued by
NWS Quad Cities, IA
Flood severity
Minor

County Keokuk County, IA

The radar

The Des Moines radar (KDMX), 136 km from the middle of the area, began a volume at 20:35 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 North Skunk River near Sigourney (SIGI4).

Action stage
14.5 ft
Minor stage
16 ft
Moderate stage
18 ft
Major stage
21 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05472500, 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 22, 9:43 AM CDTRiver Flood WarningDVNIowa, Johnson19 days
Oct 22, 3:33 PM CDTRiver Flood WarningDVNClinton, Scott16 days

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.