Alert archive / Minnesota / Flood Watches in 2007

Flood Watch 1, NWS La Crosse, WI

October 7, 2007Dodge County, Minnesota

NWS La Crosse, WI issued this flood watch at Oct 7, 2007, 9:28 PM CDT for Dodge County, Minnesota. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued: Oct 7, 2007, 9:28 PM CDT (02:28 UTC)
Expired: Oct 8, 2007, 8:21 AM CDT
In force: 11 hr
Issued by: NWS La Crosse, WI
Flood severity: None

County Dodge County, MN

The radar

The Minneapolis radar (KMPX), 107 km from the middle of the area, began a volume at 02:28 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 nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.5 hours before the alert went out and 109 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2019 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 714 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 3.1

Open this sounding in Storm Lab

What forecasters said that day

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

NWS La Crosse, WI wrote its last area forecast discussion before this flood watch went out at Oct 7, 9:27 PM CDT, 1 minute earlier.

Area forecast discussion, Oct 7, 9:27 PM CDT, 1 minute before

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Hazardous weather outlook, Oct 7, 3:54 PM CDT, 5 hours 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
354 PM CDT SUN OCT 7 2007

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034-
041>044-053>055-061-081000-
ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CLAYTON-CRAWFORD-DODGE-
FAYETTE-FILLMORE-FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU-LA CROSSE-
MITCHELL-MONROE-MOWER-OLMSTED-RICHLAND-TAYLOR-TREMPEALEAU-VERNON-
WABASHA-WINNESHIEK-WINONA-
354 PM CDT SUN OCT 7 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
MINNESOTA...NORTHEAST IOWA...AND SOUTHWEST INTO CENTRAL WISCONSIN.

.DAY ONE...TONIGHT

A SLOW MOVING COLD FRONT OVER MINNESOTA AND WESTERN IOWA WILL
CONTINUE TO INITIATE RAIN AND SCATTERED THUNDERSTORMS THROUGH
TONIGHT. THUNDERSTORM COVERAGE WILL LIKELY BE HIGHEST THROUGH
EARLY EVENING...AND THEN BECOME MORE SCATTERED OVERNIGHT DESPITE AN
OVERALL INCREASE IN RAIN COVERAGE AND INTENSITY. ORGANIZED SEVERE
WEATHER IS NOT ANTICIPATED THROUGH TONIGHT...HOWEVER...THE POTENTIAL
EXISTS FOR A BRIEF...ISOLATED SEVERE STORM...WITH THE MAIN THREAT
BEING DAMAGING WIND. THE MAIN WINDOW FOR THIS ISOLATED AND BRIEF
SEVERE WEATHER POTENTIAL WILL BE ACROSS SOUTHEAST MINNESOTA AND
NORTHEAST IOWA...THROUGH ABOUT 7 OR 8 PM.

ANY STORM THROUGH TONIGHT WILL HAVE POTENTIAL TO PRODUCE TORRENTIAL
RAINFALL RATES IN EXCESS OF AN INCH PER HOUR DUE TO A VERY MOIST
AIRMASS IN PLACE. A QUICK 1 TO 2 INCHES OF RAIN WOULD NOT BE OUT OF
THE QUESTION FOR AREAS THAT SEE A SLOW MOVING THUNDERSTORM. THIS MAY
CAUSE RAPID STREAM RISES...PONDING ON ROADWAYS AND IN URBAN AREAS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

LOW PRESSURE WILL DRIFT OVERHEAD ON MONDAY. DUE TO THE
CLOUD COVER AND LIMITED INSTABILITY...THUNDERSTORMS WILL BECOME
MORE ISOLATED IN NATURE AND TRANSITION TO SHOWERS DURING THE
AFTERNOON HOURS. NO SEVERE WEATHER IS ANTICIPATED. SOME OF THE
THUNDERSTORMS MAY PRODUCE LOCALLY HEAVY DOWNPOURS MONDAY MORNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME...BUT SPOTTER
GROUPS MAY WANT TO STAY ABREAST OF THUNDERSTORM DEVELOPMENT 7 OR 8 PM
IN CASE LOCAL ACTIVATION IS REQUESTED. ANY REPORTS OF RAINFALL WOULD
ALSO BE APPRECIATED.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

DAS/BINAU

In the hours before

Local storm report, Oct 7, 7:21 PM CDT, 2 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
721 PM CDT SUN OCT 07 2007

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

0625 PM     FLASH FLOOD      2 E EDGEWOOD            42.65N 91.36W
10/07/2007                   CLAYTON            IA   LAW ENFORCEMENT

            WATER ON THE ROADWAY...HIGHWAY 3 AT HIGHWAY C7X /HILTON
            RD/. C7X BETWEEN GARBER AND EDGEWOOD HAS WATER OVER IT AS
            WELL.

0657 PM     FLASH FLOOD      2 E EDGEWOOD            42.65N 91.36W
10/07/2007                   CLAYTON            IA   AMATEUR RADIO

            WATER OVER HIGHWAY 3 AT HIGHWAY C7X /HILTON ROAD/. ROAD
            CLOSED.

0657 PM     FLASH FLOOD      4 S GARBER              42.69N 91.26W
10/07/2007                   CLAYTON            IA   LAW ENFORCEMENT

            ELK CREEK COMING OUT OF ITS BANKS...WITH FLOODING ON IOWA
            AVENUE.

&&

MW

Local storm report, Oct 7, 7:31 PM CDT, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
731 PM CDT SUN OCT 07 2007

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

0726 PM     FLASH FLOOD      3 SE LITTLEPORT         42.72N 91.33W
10/07/2007                   CLAYTON            IA   AMATEUR RADIO

            WATER OVER THE ROAD NEAR INTERSECTION OF HARVEST ROAD AND
            HIGHWAY C5X /GLACIER ROAD/. THIS IS FROM BEAR CREEK. BEAR
            CREEK ALSO REPORTED TO BE OUT OF ITS BANKS WITH EXTENSIVE
            LOWLAND FLOODING.

&&

MW

Local storm report, Oct 7, 7:48 PM CDT, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
748 PM CDT SUN OCT 07 2007

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

0740 PM     HEAVY RAIN       EDGEWOOD                42.65N 91.40W
10/07/2007  M5.21 INCH       CLAYTON            IA   CO-OP OBSERVER

            SINCE 3 PM THIS AFTERNOON.

&&

MW

Local storm report, Oct 7, 7:51 PM CDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
751 PM CDT SUN OCT 07 2007

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

0745 PM     FLASH FLOOD      2 N EDGEWOOD            42.68N 91.40W
10/07/2007                   CLAYTON            IA   CO-OP OBSERVER

            BEAR CREEK IS FLOODING OVER FAUCET ROAD.

&&

MW

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 7, 8:44 PM CDT	River Flood Warning	ARX	Clayton	8 hr
Oct 8, 3:29 AM CDT	Flash Flood Watch	ARX	Clayton	7 hr

Nearby

Flood Watches in Minnesota, 2007 Every flood watch in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.