Alert archive / Illinois / River Flood Warnings in 2011

River Flood Warning 31, NWS Chicago, IL

April 25, 2011Iroquois County, Illinois

NWS Chicago, IL issued this river flood warning at Apr 25, 2011, 9:15 AM CDT for Iroquois County, Illinois. It took effect at Apr 26, 2011, 9:53 PM CDT. It was in force for 67 hr.

The area

The counties it named.

The facts

Issued
Apr 25, 2011, 9:15 AM CDT (14:15 UTC)
In effect from
Apr 26, 2011, 9:53 PM CDT
Expired
Apr 29, 2011, 5:01 PM CDT
In force
67 hr
Issued by
NWS Chicago, IL
Flood severity
Minor

County Iroquois County, IL

The radar

The Chicago radar (KLOT), 98 km from the middle of the area, began a volume at 14:18 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 Sugar Creek (E-IL) at Milford (MILI2).

Action stage
15 ft
Minor stage
18 ft
Moderate stage
22 ft
Major stage
26 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05525500, 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 Chicago, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 25, 3:52 AM CDTGale WarningLOT38 hr
Apr 25, 3:52 AM CDTSmall Craft AdvisoryLOT42 hr
Apr 25, 9:47 AM CDTRiver Flood AdvisoryLOTKankakee24 hr
Apr 25, 10:52 AM CDTRiver Flood WarningLOTLaSalle5 days
Apr 25, 9:15 AM CDTRiver Flood WarningLOTPorter13 days
Apr 25, 9:15 AM CDTRiver Flood WarningLOTJasper, Porter13 days
Apr 25, 9:47 AM CDTRiver Flood AdvisoryLOTJasper24 hr

Nearby

River Flood Warnings in Illinois, 2011Every river flood warning in 2011

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.