Alert archive / Iowa / River Flood Warnings in 2010

River Flood Warning 63, NWS Des Moines, IA

May 12, 2010Madison County, Warren County, Iowa

NWS Des Moines, IA issued this river flood warning at May 12, 2010, 4:54 PM CDT for Madison County, Warren County, Iowa. It took effect at May 12, 2010, 10:26 PM CDT. It was in force for 57 hr.

The area

The counties it named.

The facts

Issued: May 12, 2010, 4:54 PM CDT (21:54 UTC)
In effect from: May 12, 2010, 10:26 PM CDT
Expired: May 15, 2010, 6:59 AM CDT
In force: 57 hr
Issued by: NWS Des Moines, IA
Flood severity: Minor

Counties Madison County, IA, Warren County, IA

The radar

The Des Moines radar (KDMX), 45 km from the middle of the area, began a volume at 21:55 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 River near Norwalk (NRWI4). The gauge peaked at 19.68 ft at May 12, 2010, 11:00 PM CDT.

Action stage: 17 ft
Minor stage: 22 ft
Moderate stage: 25 ft
Major stage: 26 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05486000, 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 May 12, 3:36 PM CDT, 1 hour 18 minutes earlier.

Area forecast discussion, May 12, 3:36 PM CDT, 1 hour 18 minutes before

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Hazardous weather outlook, May 12, 3:51 PM CDT, 1 hour 3 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
351 PM CDT WED MAY 12 2010

IAZ048>050-060>062-072>075-082>086-092>097-132100-
STORY-MARSHALL-TAMA-POLK-JASPER-POWESHIEK-MADISON-WARREN-MARION-
MAHASKA-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-
WAYNE-APPANOOSE-DAVIS-
351 PM CDT WED MAY 12 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A FLASH FLOOD WATCH IS IN EFFECT FOR THE AREA. PLEASE REFER TO
THE NATIONAL WEATHER SERVICE WEBSITE AT WEATHER.GOV/DESMOINES FOR
FURTHER DETAILS.

STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS EVENING
AND CONTINUE ACROSS THE AREA TONIGHT. LARGE HAIL AND DAMAGING
WINDS WILL BE THE MAIN THREAT WITH THE SEVERE WEATHER. IN ADDITION
TO THE SEVERE WEATHER POTENTIAL...AREAS OF FLASH FLOODING ARE
POSSIBLE AS THE GROUND IS STILL VERY SATURATED FROM THE RAIN
EARLIER IN THE WEEK AND THE RAINFALL AMOUNTS FORECAST FOR TONIGHT
RANGE FROM 2 TO 3 INCHES AND LOCALLY HIGHER AMOUNTS. RIVER FLOODING
MAY ALSO POSE A PROBLEM IN SOME AREAS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME...THOUGH RIVER
FLOODING MAY BE A PROBLEM IN SOME AREAS OVER THE NEXT SEVERAL
DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAYBE NEEDED TONIGHT. RAINFALL REPORTS WOULD
ALSO BE APPRECIATED IN ADDITION TO HAIL AND WIND REPORTS.

IAZ004>007-015>017-023>028-033>039-044>047-057>059-070-071-081-
132100-
EMMET-KOSSUTH-WINNEBAGO-WORTH-PALO ALTO-HANCOCK-CERRO GORDO-
POCAHONTAS-HUMBOLDT-WRIGHT-FRANKLIN-BUTLER-BREMER-SAC-CALHOUN-
WEBSTER-HAMILTON-HARDIN-GRUNDY-BLACK HAWK-CRAWFORD-CARROLL-GREENE-
BOONE-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-ADAMS-
351 PM CDT WED MAY 12 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL IOWA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS ARE POSSIBLE LATE THROUGH TONIGHT. THE
SEVERE THREAT IS LOW...BUT AN ISOLATED SEVERE THUNDERSTORM COULD
PRODUCE LARGE HAIL ALONG AND SOUTH OF HIGHWAY 20. LOCALLY HEAVY
RAIN IS ALSO EXPECTED WERE UP TO 2 INCHES OF NEW RAINFALL MAY
ACCUMULATE BY LATE TONIGHT. AT THIS TIME THE SOIL MOISTURE
SITUATION WOULD ALLOW FOR LOCALLY HEAVY RAINFALL TO OCCUR WITH
MINIMAL WATER ISSUES. SOME MINOR STREET FLOODING OR PONDING OF
WATER WILL OCCUR IN THE HEAVIER STORMS THIS EVENING.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED TONIGHT.

REV

In the hours before

Local storm report, May 12, 3:12 PM CDT, 1 hour 42 minutes before

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Local storm report, May 12, 3:27 PM CDT, 1 hour 27 minutes before

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Local storm report, May 12, 3:52 PM CDT, 1 hour 2 minutes before

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Local storm report, May 12, 4:30 PM CDT, 24 minutes before

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Special weather statement, May 12, 4:47 PM CDT, 7 minutes before

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Local storm report, May 12, 4:51 PM CDT, 3 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
May 12, 4:04 AM CDT	Flash Flood Watch	DMX	Appanoose, Clarke, Davis, Decatur, Jasper, Lucas and 15 more	26 hr
May 12, 11:11 AM CDT	River Flood Warning	DMX	Mahaska, Marion	50 hr
May 12, 11:11 AM CDT	River Flood Warning	DMX	Decatur	34 hr
May 12, 11:11 AM CDT	River Flood Warning	DMX	Appanoose, Wayne	42 hr
May 12, 1:38 PM CDT	Severe Thunderstorm Warning	DMX	Audubon, Guthrie	37 min
May 12, 2:05 PM CDT	Severe Thunderstorm Warning	DMX	Franklin, Hamilton, Hardin, Wright	40 min
May 12, 2:40 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Greene, Guthrie	50 min
May 12, 2:48 PM CDT	Areal Flood Advisory	DMX	Audubon, Greene, Guthrie	3 hr
May 12, 3:35 PM CDT	Severe Thunderstorm Warning	DMX	Boone, Hamilton	40 min
May 12, 4:14 PM CDT	Areal Flood Advisory	DMX	Boone, Hamilton, Hardin, Webster	3 hr
May 12, 4:16 PM CDT	Severe Thunderstorm Warning	DMX	Adair, Dallas, Madison	44 min
May 12, 5:09 PM CDT	Areal Flood Advisory	DMX	Black Hawk, Bremer, Butler, Grundy	3 hr
May 12, 6:03 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Polk	28 min
May 12, 6:51 PM CDT	Severe Thunderstorm Warning	DMX	Grundy, Marshall, Tama	24 min

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.