Alert archive / Iowa / River Flood Watches in 2018

River Flood Watch 13, NWS Quad Cities, IA

April 30, 2018Des Moines County, Louisa County, Iowa; Henderson County, Mercer County, Illinois

NWS Quad Cities, IA issued this river flood watch at Apr 30, 2018, 11:08 AM CDT for Des Moines County, Louisa County, Iowa; Henderson County, Mercer County, Illinois. It took effect at May 6, 2018, 1:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 30, 2018, 11:08 AM CDT (16:08 UTC)
In effect from
May 6, 2018, 1:00 AM CDT
Expired
May 1, 2018, 10:09 PM CDT
In force
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Flood severity
None

Counties Des Moines County, IA, Louisa County, IA, Henderson County, IL, Mercer County, IL

The radar

The Quad Cities radar (KDVN), 74 km from the middle of the area, began a volume at 16:06 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 Mississippi River at Keithsburg (KHBI2).

Action stage
13 ft
Minor stage
14 ft
Moderate stage
15.5 ft
Major stage
17 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, 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
Apr 30, 11:08 AM CDTRiver Flood WatchDVNDubuque8 days
Apr 30, 11:08 AM CDTRiver Flood WatchDVNLouisa, Muscatine35 hr
Apr 30, 11:08 AM CDTRiver Flood WatchDVNLouisa35 hr
Apr 30, 11:08 AM CDTRiver Flood WatchDVNDes Moines35 hr
Apr 30, 11:08 AM CDTRiver Flood WatchDVNDes Moines, Lee35 hr

Nearby

River Flood Watches in Iowa, 2018River Flood Watches in Illinois, 2018Every river flood watch in 2018

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.