Alert archive / Iowa / River Flood Warnings in 2010

River Flood Warning 85, NWS Quad Cities, IA

May 12, 2010Keokuk County, Iowa

NWS Quad Cities, IA issued this river flood warning at May 12, 2010, 3:03 PM CDT for Keokuk County, Iowa. It took effect at May 12, 2010, 9:13 PM CDT. It was in force for 6 days.

The area

The counties it named.

The facts

Issued: May 12, 2010, 3:03 PM CDT (20:03 UTC)
In effect from: May 12, 2010, 9:13 PM CDT
Expired: May 18, 2010, 2:54 PM CDT
In force: 6 days
Issued by: NWS Quad Cities, IA
Flood severity: Moderate

County Keokuk County, IA

The radar

The Des Moines radar (KDMX), 136 km from the middle of the area, began a volume at 20:04 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). The gauge peaked at 19.32 ft at May 16, 2010, 12:00 PM CDT.

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.

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 May 12, 11:21 AM CDT, 3 hours 42 minutes earlier.

Area forecast discussion, May 12, 11:21 AM CDT, 3 hours 42 minutes before

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Hazardous weather outlook, May 12, 5:14 AM CDT, 9 hours 49 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
514 AM CDT WED MAY 12 2010

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-131015-
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-
514 AM CDT WED MAY 12 2010

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

SEVERAL PERIODS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED
THROUGH TONIGHT AS A WARM FRONT LIFTS INTO THE OUTLOOK
AREA. THE MAIN THREAT WILL BE HEAVY RAINFALL OF 1 TO 2
INCHES... WITH LOCALLY HIGHER AMOUNTS POSSIBLE. A FLASH
FLOOD WATCH IS IN EFFECT FOR TONIGHT FOR AREAS ROUGHLY
ALONG AND SOUTH OF INTERSTATE 80 WHERE SOILS ARE SATURATED
FROM RECENT HEAVY RAINFALL. ANY ADDITIONAL HEAVY RAINFALL
IN THESE AREAS WILL LIKELY GO MOSTLY INTO RUNOFF AND RESULT
IN SIGNIFICANT RISES ON AREA TRIBUTARY RIVERS... STREAMS
AND CREEKS. IN ADDITION TO HEAVY RAIN...THERE IS THE
POTENTIAL FOR HAIL WITH THE STRONGER STORMS OVER THE ENTIRE
OUTLOOK AREA... MAINLY THIS AFTERNOON AND EVENING. THE
STORM PREDICTION CENTER DOES HAVE THE AREA MAINLY SOUTH OF
HIGHWAY 34 IN A SLIGHT RISK OF SEVERE STORMS THIS AFTERNOON
AND EVENING... AND THIS IS MAINLY FOR THE POTENTIAL OF
A STORM TO PRODUCE DAMAGING WINDS OR AN ISOLATED TORNADO
ALONG THE WARM FRONT. CURRENT INFORMATION SUGGESTS
HOWEVER... THAT THIS THREAT LIKELY RESIDES SOUTH OF THE
OUTLOOK AREA.

AREA RIVERS ARE EXPERIENCING FLOODING. PLEASE SEE THE LATEST
FLOOD STATEMENTS AND FLOOD WARNINGS FOR DETAILS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED TODAY OR TONIGHT.
HOWEVER... SPOTTERS ARE ENCOURAGED TO REPORT FLASH
FLOODING AND RAINFALL AMOUNTS IN EXCESS OF 1 INCH TO THE
NATIONAL WEATHER SERVICE IN THE QUAD CITIES.

In the hours before

Special weather statement, May 12, 9:34 AM CDT, 5 hours 29 minutes before

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Special weather statement, May 12, 11:56 AM CDT, 3 hours 7 minutes before

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Local storm report, May 12, 12:44 PM CDT, 2 hours 19 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 3:47 AM CDT	Flash Flood Watch	DVN	Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more	32 hr
May 12, 4:04 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque, Jackson, Jones	41 min
May 12, 4:27 PM CDT	River Flood Warning	DVN	Johnson, Washington	3 days
May 12, 4:50 PM CDT	Special Weather Statement	DVN	Buchanan, Delaware, Dubuque	85 min
May 12, 5:06 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque	39 min
May 12, 11:56 AM CDT	Special Weather Statement	DVN	Hancock, McDonough	49 min
May 12, 2:45 PM CDT	River Flood Warning	DVN	Hancock, McDonough	8 days
May 12, 11:24 AM CDT	River Flood Warning	DVN	Clark	72 hr

Nearby

River Flood Warnings in Iowa, 2010 Every river flood warning in 2010

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.