Alert archive / Iowa / River Flood Warnings in 2010

River Flood Warning 183, NWS Des Moines, IA

July 22, 2010Boone County, Hamilton County, Webster County, Iowa

NWS Des Moines, IA issued this river flood warning at Jul 22, 2010, 7:22 AM CDT for Boone County, Hamilton County, Webster County, Iowa. It took effect at Jul 23, 2010, 1:51 AM CDT. It was in force for 5 days.

The area

The counties it named.

The facts

Issued: Jul 22, 2010, 7:22 AM CDT (12:22 UTC)
In effect from: Jul 23, 2010, 1:51 AM CDT
Expired: Jul 28, 2010, 9:17 AM CDT
In force: 5 days
Issued by: NWS Des Moines, IA
Flood severity: Minor

Counties Boone County, IA, Hamilton County, IA, Webster County, IA

The radar

The Des Moines radar (KDMX), 64 km from the middle of the area, began a volume at 12:24 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 near Stratford (STRI4). The gauge peaked at 21.70 ft at Jul 24, 2010, 12:00 PM CDT.

Action stage: 14 ft
Minor stage: 19 ft
Moderate stage: 25 ft
Major stage: 27 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05481300, 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 Des Moines, IA wrote its last area forecast discussion before this river flood warning went out at Jul 22, 6:47 AM CDT, 35 minutes earlier.

Area forecast discussion, Jul 22, 6:47 AM CDT, 35 minutes before

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Hazardous weather outlook, Jul 22, 5:14 AM CDT, 2 hours 8 minutes before

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In the hours before

Special weather statement, Jul 22, 2:18 AM CDT, 5 hours 4 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
218 AM CDT THU JUL 22 2010

IAZ004>007-015>017-023>026-033>036-044>046-220930-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-SAC-CALHOUN-WEBSTER-HAMILTON-
CRAWFORD-CARROLL-GREENE-
INCLUDING THE CITIES OF...ESTHERVILLE...ALGONA...FOREST CITY...
NORTHWOOD...EMMETSBURG...GARNER...MASON CITY...POCAHONTAS...
HUMBOLDT...CLARION...HAMPTON...SAC CITY...ROCKWELL CITY...
FORT DODGE...WEBSTER CITY...DENISON...CARROLL...JEFFERSON
218 AM CDT THU JUL 22 2010

...HEAVY RAIN POTENTIAL CONTINUES EARLY THIS MORNING...

A LARGE AREA OF THUNDERSTORMS WILL CONTINUE TO MEANDER EAST ACROSS
MUCH OF NORTH CENTRAL IOWA THROUGH 430 AM CDT. THE MAIN THREAT
WITH THESE STORMS IS EXTREMELY HEAVY RAIN AND STRONG GUSTY WINDS
IN EXCESS OF 50 MPH AT TIMES. THESE THUNDERSTORMS WILL BE CAPABLE
OF PRODUCING ONE INCH OF RAIN WITHIN A 15 TO 20 MINUTE TIME
FRAME...AND ROUGHLY 2 TO 4 INCHES WITHIN ABOUT 3 HOUR TIME FRAME
OR LESS. TOTAL RAINFALL AMOUNTS OF 3 TO 5 INCHES ARE LIKELY TO
OCCUR BY DAY BREAK.

KLP

Local storm report, Jul 22, 4:50 AM CDT, 2 hours 32 minutes before

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Local storm report, Jul 22, 4:59 AM CDT, 2 hours 23 minutes before

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Special weather statement, Jul 22, 6:02 AM CDT, 1 hour 20 minutes before

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The office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 22, 2:24 AM CDT	Severe Thunderstorm Warning	DMX	Palo Alto, Pocahontas	51 min
Jul 22, 3:44 AM CDT	Flash Flood Warning	DMX	Calhoun, Pocahontas, Sac, Webster	6 hr
Jul 22, 3:52 AM CDT	Heat Advisory	DMX	Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more	16 hr
Jul 22, 3:57 AM CDT	Severe Thunderstorm Warning	DMX	Wright	33 min
Jul 22, 5:54 AM CDT	River Flood Warning	DMX	Humboldt	4 days
Jul 22, 7:22 AM CDT	River Flood Warning	DMX	Hamilton, Webster	70 hr
Jul 22, 12:00 PM CDT	River Flood Warning	DMX	Dallas, Greene	7 days
Jul 22, 4:44 PM CDT	River Flood Warning	DMX	Wright	40 hr
Jul 22, 4:44 PM CDT	River Flood Warning	DMX	Black Hawk, Butler	5 days

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.