Alert archive / Iowa / River Flood Warnings in 2018

River Flood Warning 100, NWS Quad Cities, IA

September 6, 2018Lee County, Iowa; Clark County, Missouri

NWS Quad Cities, IA issued this river flood warning at Sep 6, 2018, 1:44 PM CDT for Lee County, Iowa; Clark County, Missouri. It was in force for 49 hr.

The area

The counties it named.

The facts

Issued
Sep 6, 2018, 1:44 PM CDT (18:44 UTC)
Expired
Sep 8, 2018, 3:00 PM CDT
In force
49 hr
Issued by
NWS Quad Cities, IA
Area
Storm-based polygon
Flood severity
Minor

Counties Lee County, IA, Clark County, MO

The radar

The Quad Cities radar (KDVN), 148 km from the middle of the area, began a volume at 18:48 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 Des Moines River at St. Francisville (SFLM7).

Action stage
17 ft
Minor stage
18 ft
Moderate stage
22 ft
Major stage
25 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05490600, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Quad Cities, IA wrote its last area forecast discussion before this river flood warning went out at Sep 6, 1:00 PM CDT, 44 minutes earlier.

Area forecast discussion, Sep 6, 1:00 PM CDT, 44 minutes before
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Hazardous weather outlook, Sep 6, 8:13 AM CDT, 5 hours 31 minutes before
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
813 AM CDT Thu Sep 6 2018

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-071315-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
813 AM CDT Thu Sep 6 2018

This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.

.DAY ONE...TODAY AND TONIGHT

Periods of rain, locally heavy, can be expected today south of
Highway 30. Due to the very saturated ground, this rainfall may
cause localized flooding.

Area rivers are experiencing flooding. Please see the
latest Flood Statements and Flood Warnings for details.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Area rivers will continue to experience flooding. Please see the
latest Flood Statements and Flood Warnings for details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight. However,
any reports of flash flooding or new flooding would be appreciated.

Haase

In the hours before

Local storm report, Sep 6, 10:54 AM CDT, 2 hours 50 minutes before
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Local storm report, Sep 6, 11:29 AM CDT, 2 hours 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1129 AM CDT THU SEP 6 2018

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

1129 AM     HEAVY RAIN       2 SE KEOSAUQUA AIRPORT  40.72N 91.92W
09/06/2018  M2.50 INCH       VAN BUREN          IA   TRAINED SPOTTER

            24 HOUR TOTAL.

&&
Local storm report, Sep 6, 12:10 PM CDT, 1 hour 34 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1210 PM CDT THU SEP 6 2018

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

1200 PM     HEAVY RAIN       3 WNW MOUNT STERLING    40.64N 91.98W
09/06/2018  M4.50 INCH       VAN BUREN          IA   TRAINED SPOTTER

            CORRECTS PREVIOUS HEAVY RAIN REPORT FROM 3
            WNW MOUNT STERLING. 29 HOUR TOTAL. 1.4
            INCHES 7AM TO 9AM. ANOTHER 1 INCH SINCE 9AM.

&&
Special weather statement, Sep 6, 12:27 PM CDT, 1 hour 17 minutes before
Special Weather Statement
National Weather Service Quad Cities IA IL
1227 PM CDT Thu Sep 6 2018

IAZ089-099-ILZ025-026-034-035-MOZ010-061930-
Des Moines-Lee-Henderson-Warren-Hancock-McDonough-Clark-
Including the cities of Burlington, Fort Madison, Oquawka,
Monmouth, Carthage, Macomb, and Kahoka
1227 PM CDT Thu Sep 6 2018

...Light to Moderate Rain with Localized Flooding Possible
through Early Afternoon...

Light to moderate rain will continue to fall across areas along
and south of a line from Keokuk, to Burlington, to Galesburg
through mid afternoon. Some isolated pockets of heavy rainfall
will still be possible. Portions of this area has already seen
between 2 and 4 inches of rain.

Runoff from additional rain this afternoon, will lead to
localized flooding in low lying areas and along ditches, creeks,
and streams. In addition, ponding or standing water on roadways
will also be possible.

If you are driving and encounter a flooded roadway, turn around
and find another way to reach your destination safely. Most flood
deaths occur in vehicles.

14
Local storm report, Sep 6, 1:01 PM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
101 PM CDT THU SEP 6 2018

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

0100 PM     HEAVY RAIN       NWS DAVENPORT           41.61N 90.58W
09/06/2018  M1.97 INCH       SCOTT              IA   OFFICIAL NWS OBS

            CO-OP OBSERVER STATION DVNI4, NWS DAVENPORT.
            THE DURATION OF THE HEAVY RAIN EVENT WAS 12
            HOURS.

&&
Local storm report, Sep 6, 1:11 PM CDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
111 PM CDT THU SEP 6 2018

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

1252 PM     HEAVY RAIN       DAVENPORT ARPT          41.61N 90.59W
09/06/2018  M2.16 INCH       SCOTT              IA   ASOS

            ASOS STATION DVN, DAVENPORT ARPT. THE
            DURATION OF THE HEAVY RAIN EVENT WAS 12
            HOURS.

1253 PM     HEAVY RAIN       BURLINGTON ARPT         40.78N 91.13W
09/06/2018  M1.42 INCH       DES MOINES         IA   ASOS

            ASOS STATION BRL, BURLINGTON ARPT. THE
            DURATION OF THE HEAVY RAIN EVENT WAS 12
            HOURS.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 7:51 AM CDTSpecial Weather StatementDVNScott114 min
Sep 6, 9:02 AM CDTRiver Flood WarningDVNDes Moines, Henry, Lee8 days
Sep 6, 2:38 PM CDTFlash Flood WatchDVNDes Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more36 hr
Sep 6, 9:49 AM CDTRiver Flood WarningDVNHancock, McDonough47 hr
Sep 6, 4:25 PM CDTRiver Flood WarningDVNClark46 hr

Nearby

River Flood Warnings in Iowa, 2018River Flood Warnings in Missouri, 2018Every river flood warning 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.