Alert archive / Iowa / River Flood Warnings in 2008

River Flood Warning 31, NWS Des Moines, IA

April 11, 2008Mahaska County, Iowa

NWS Des Moines, IA issued this river flood warning at Apr 11, 2008, 3:37 AM CDT for Mahaska County, Iowa. It took effect at Apr 11, 2008, 11:24 AM CDT. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued: Apr 11, 2008, 3:37 AM CDT (08:37 UTC)
In effect from: Apr 11, 2008, 11:24 AM CDT
Expired: Apr 12, 2008, 9:26 AM CDT
In force: 22 hr
Issued by: NWS Des Moines, IA
Flood severity: Minor

County Mahaska County, IA

The radar

The Des Moines radar (KDMX), 100 km from the middle of the area, began a volume at 08:38 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 South Skunk River near Oskaloosa (OOAI4). The gauge peaked at 17.05 ft at Apr 11, 2008, 2:00 PM CDT.

Action stage: 18 ft
Minor stage: 24.5 ft
Moderate stage: 28.5 ft
Major stage: 30 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05471500, 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 Apr 10, 11:45 PM CDT, 3 hours 52 minutes earlier.

Area forecast discussion, Apr 10, 11:45 PM CDT, 3 hours 52 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE DES MOINES IA
1145 PM CDT THU APR 10 2008

.DISCUSSION...
MOST ACTION IN THE EARLY PART OF THE FCST. LO PRES OVR NERN KS
LFTG NWD AND WILL MOVE THRU IA TNGT. WELL PROGGED BY THE MODLS.
CUR WRMFNT PUSHING INTO SRN IA ATTM WTIH DEW POINTS IN THE UPPER
50S TO LOW 60S JUST S OF THE BNRY. ARC OF LOW TOP CONVETION LFTG
NNEWD AND WILL AFFECT THE CWA THRU 01Z. AS LOW DEPARTS...COLD AIR
WILL SINK SWD ACRS THE AREA. EXPECT PCPN TO CHNG TO SNW OVR THE
WRN PART OF THE CWA BY SNRS AND SPRD EWD SLOWLY TO ALL BUT THE FAR
EAST BY EVE. COULD SEE A COUPLE INCHES OVR THE NW...WITH ONLY LGT
ACCUMS ELSE. -SHSN WILL CONT INTO SAT WITH CLRG SPRDG EWD ON SUN.
WRMG TREND WILL MOVE IN FOR SUN INTO NET WEEK WITH TEMPS WRMG TO
WELL ABV NORMAL BY TUE.

AVIATION...11/06Z
MAINLY IFR CIGS/VSBYS WILL CONTINUE THROUGH THE TAF PERIOD.  TSRA
SHOULD ONLY BE ISOLD THROUGH 12Z BUT THERE WL BE SCT SHRA DROPPING
CIGS AND VSBYS.  FAIRLY STRONG WIND SPEEDS WILL ALSO BE FORECAST
OVER ALL TAF SITES AS PRESSURE GRADIENT REMAINS TIGHT WITH STRONG
LOW PRES OVER SW IA SLOWLY LIFTS INTO NE IA.

&&

.DMX WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY UNTIL 7 PM CDT THIS EVENING FOR BLACK HAWK-BOONE-
BREMER-BUTLER-CALHOUN-CARROLL-CERRO GORDO-CRAWFORD-EMMET-
FRANKLIN-GREENE-GRUNDY-HAMILTON-HANCOCK-HARDIN-HUMBOLDT-KOSSUTH-
MARSHALL-PALO ALTO-POCAHONTAS-SAC-STORY-TAMA-WEBSTER-WINNEBAGO-
WORTH-WRIGHT.

FLASH FLOOD WATCH UNTIL MIDNIGHT CDT TONIGHT FOR APPANOOSE-DAVIS-
DECATUR-LUCAS-MAHASKA-MARION-MONROE-POWESHIEK-WAPELLO-WAYNE.

&&

Hazardous weather outlook, Apr 10, 10:09 PM CDT, 5 hours 28 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DES MOINES IA
1009 PM CDT THU APR 10 2008

IAZ081>086-092>097-120315-
ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-
WAYNE-APPANOOSE-DAVIS-
1009 PM CDT THU APR 10 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A PORTION OF CENTRAL IOWA
MAINLY ALONG AND SOUTH OF HIGHWAY 34.

.DAY ONE...TONIGHT

PERIODS OF SHOWERS AND THUNDERSTORMS WILL MOVE NORTHEAST ACROSS THE
AREA THROUGH TONIGHT. A FEW STORMS MAY BE SEVERE THROUGH MIDNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED UNTIL MIDNIGHT.

IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075-120315-
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-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE-DALLAS-POLK-JASPER-
POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION-MAHASKA-
1009 PM CDT THU APR 10 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR A PORTION OF CENTRAL IOWA
MAINLY NORTH OF HIGHWAY 34.

.DAY ONE...TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

RAIN WILL MIX WITH AND CHANGE TO SNOW FROM WEST TO EAST ON FRIDAY.
SOME LIGHT ACCUMULATIONS OF SNOW...GENERALLY 2 INCHES OR LESS ARE
POSSIBLE...ESPECIALLY NORTHWEST OF A FORT DODGE TO MASON CITY
LINE. WINDS WILL ALSO INCREASE FROM THE WEST OR NORTHWEST AND
GUST 30 TO 35 MPH AT TIMES...AND COMBINED WITH THE SNOW COULD
RESULT IN REDUCED VISIBILITY AND DANGEROUS DRIVING CONDITIONS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED BUT REPORTS OF WIND AND
SNOWFALL ARE APPRECIATED.

FAB

In the hours before

Local storm report, Apr 10, 9:40 PM CDT, 5 hours 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
940 PM CDT THU APR 10 2008

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

0939 PM     TSTM WND GST     LAMONI                  40.62N 93.94W
04/10/2008  M58 MPH          DECATUR            IA   ASOS

&&

JLEE

Local storm report, Apr 10, 10:48 PM CDT, 4 hours 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1048 PM CDT THU APR 10 2008

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

0636 PM     TSTM WND DMG     5 E BROOKLYN            41.73N 92.34W
04/10/2008                   POWESHIEK          IA   PUBLIC

            FARMSTEAD HAD 2 BARNS BLOWN DOWN. FARMHOUSE HAD PORTIONS
            OF ROOF PEELED OFF...SIDING TORN OFF AND WINDOWS BLOWN
            OUT...DELAYED REPORT

&&

PODRAZIK

Local storm report, Apr 10, 10:54 PM CDT, 4 hours 43 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
1054 PM CDT THU APR 10 2008

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

0555 PM     TSTM WND DMG     5 SSW BEACON            41.20N 92.71W
04/10/2008                   MAHASKA            IA   STORM CHASER

            310TH STREET AND INDEPENDENCE STREET. MINOR DAMAGE TO
            FARM AND HOUSE. POSSIBLY TORNADO DAMAGE. DELAYED REPORT.

&&

SMALL

Local storm report, Apr 10, 11:28 PM CDT, 4 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
1128 PM CDT THU APR 10 2008

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

0500 PM     FUNNEL CLOUD     1 W CHARITON            41.02N 93.33W
04/10/2008                   LUCAS              IA   BROADCAST MEDIA

            DELAYED REPORT OF A FUNNEL CLOUD 1 MILE WEST OF CHARITION
            AT 5 PM.

0501 PM     TORNADO          NUMA                    40.69N 92.98W
04/10/2008                   APPANOOSE          IA   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTS A TORNADO ON THE GROUND NEAR NUMA
            MOVING NORTHWEST.

0515 PM     TSTM WND DMG     2 WSW MORAVIA           40.88N 92.85W
04/10/2008                   APPANOOSE          IA   TRAINED SPOTTER

            RELAYED REPORT FROM PUBLIC OF WIND DAMAGE TO RESIDENCES
            WEST AND SOUTH OF ICONIUM. NO INJURIES REPORTED.

0516 PM     FUNNEL CLOUD     6 SSE MELROSE           40.91N 92.99W
04/10/2008                   MONROE             IA   TRAINED SPOTTER

0520 PM     TORNADO          MORAVIA                 40.89N 92.82W
04/10/2008                   APPANOOSE          IA   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTS TORNADO IN MORAVIA MOVING
            NORTHEASTWARD WITH DAMAGE TO A GARAGE AND A HOUSE.

0538 PM     FUNNEL CLOUD     3 WSW EDDYVILLE         41.14N 92.68W
04/10/2008                   MONROE             IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTED FUNNEL DOWN TO TREELINE ABOUT 3
            MILES WSW OF EDDYVILLE MOVING QUICKLY NORTH NORTHEAST.

0555 PM     TSTM WND DMG     5 SSW BEACON            41.20N 92.71W
04/10/2008                   MAHASKA            IA   STORM CHASER

            310TH STREET AND INDEPENDENCE STREET. MINOR DAMAGE TO
            FARM AND HOUSE. POSSIBLY TORNADO DAMAGE. DELAYED REPORT.

0555 PM     TSTM WND DMG     OSKALOOSA               41.29N 92.64W
04/10/2008                   MAHASKA            IA   EMERGENCY MNGR

            DAMAGE TO FUEL PUMPS AND FRONT OF A STORE DUE TO WINDS.

0555 PM     TSTM WND DMG     OSKALOOSA               41.29N 92.64W
04/10/2008                   MAHASKA            IA   LAW ENFORCEMENT

            ROOF DAMAGE AND POWER POLES DOWN IN OSKALOOSA DUE TO
            STRAIGHT LINE WINDS.

0555 PM     TSTM WND GST     N OSKALOOSA             41.29N 92.64W
04/10/2008  E70.00 MPH       MAHASKA            IA   TRAINED SPOTTER

0602 PM     HAIL             3 S NEW SHARON          41.43N 92.65W
04/10/2008  E1.00 INCH       MAHASKA            IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTS NICKEL UP TO QUARTER SIZED HAIL 3
            MILES SOUTH OF NEW SHARON.

0624 PM     HAIL             2 WNW CENTERVILLE       40.74N 92.91W
04/10/2008  E1.00 INCH       APPANOOSE          IA   LAW ENFORCEMENT

0628 PM     HAIL             2 NNW CENTERVILLE       40.75N 92.89W
04/10/2008  E0.50 INCH       APPANOOSE          IA   TRAINED SPOTTER

            TRAINED SPOTTER REPORTS PEA TO DIME SIZED HAIL JUST NORTH
            OF CENTERVILLE.

0634 PM     HAIL             3 ENE RATHBUN           40.82N 92.84W
04/10/2008  E0.88 INCH       APPANOOSE          IA   LAW ENFORCEMENT

0636 PM     TSTM WND DMG     5 E BROOKLYN            41.73N 92.34W
04/10/2008                   POWESHIEK          IA   PUBLIC

            FARMSTEAD HAD 2 BARNS BLOWN DOWN. FARMHOUSE HAD PORTIONS
            OF ROOF PEELED OFF...SIDING TORN OFF AND WINDOWS BLOWN
            OUT...DELAYED REPORT

0714 PM     HAIL             3 SE OSCEOLA            41.00N 93.73W
04/10/2008  E0.75 INCH       CLARKE             IA   BROADCAST MEDIA

            REPORT OF 3/4 INCH HAIL ABOUT 3 MILES SOUTHEAST OF
            OSCEOLA AT 714 PM.

0828 PM     HAIL             1 SE NEWTON             41.68N 93.03W
04/10/2008  E0.88 INCH       JASPER             IA   LAW ENFORCEMENT

0844 PM     HAIL             BEAMAN                  42.22N 92.82W
04/10/2008  E0.88 INCH       GRUNDY             IA   TRAINED SPOTTER

0939 PM     TSTM WND GST     LAMONI                  40.62N 93.94W
04/10/2008  M58.00 MPH       DECATUR            IA   ASOS

&&

PODRAZIK

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 8:01 PM CDT	Severe Thunderstorm Warning	DMX	Jasper, Marion	44 min
Apr 10, 8:56 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold	34 min
Apr 10, 9:25 PM CDT	Severe Thunderstorm Warning	DMX	Decatur, Ringgold, Wayne	35 min
Apr 10, 9:52 PM CDT	Severe Thunderstorm Warning	DMX	Clarke, Lucas, Wayne	38 min
Apr 11, 3:13 AM CDT	River Flood Warning	DMX	Mahaska, Marion	14 hr

Nearby

River Flood Warnings in Iowa, 2008 Every river flood warning in 2008

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.