Alert archive / Iowa / Areal Flood Warnings in 2008

Areal Flood Warning 7, NWS La Crosse, WI

June 8, 20087 counties in Wisconsin; 8 counties in Iowa; Fillmore County, Houston County, Mower County, Minnesota

NWS La Crosse, WI issued this areal flood warning at Jun 8, 2008, 2:27 PM CDT for 7 counties in Wisconsin; 8 counties in Iowa; Fillmore County, Houston County, Mower County, Minnesota. It was in force for 34 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 8, 2008, 2:27 PM CDT (19:27 UTC)
Expired
Jun 10, 2008, 12:30 AM CDT
In force
34 hr
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Flood severity
None

Counties Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Fillmore County, MN, Houston County, MN, Mower County, MN, Adams County, WI, Crawford County, WI, Grant County, WI, Juneau County, WI, Monroe County, WI, Richland County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 53 km from the middle of the area, began a volume at 19:26 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

Davenport, (KDVN), launched 12:00Z, 7.5 hours before the alert went out and 212 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-pSkew-T log-p diagram, Davenport, at 12:00Z on 2008-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1677 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2008-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 261 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1677 J/kg
Mixed-layer CIN
-39 J/kg
Mixed-layer LCL
813 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
261 m²/s²
0-3 km storm-relative helicity
289 m²/s²
Significant tornado parameter
2.5
Supercell composite
9.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning 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 areal flood warning went out at Jun 8, 1:56 PM CDT, 31 minutes earlier.

Area forecast discussion, Jun 8, 1:56 PM CDT, 31 minutes before
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Hazardous weather outlook, Jun 8, 5:50 AM CDT, 8 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LA CROSSE WI
550 AM CDT SUN JUN 8 2008

IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ041>044-053>055-
061-091100-
ADAMS-ALLAMAKEE-CHICKASAW-CLAYTON-CRAWFORD-DODGE-FAYETTE-FILLMORE-
FLOYD-GRANT-HOUSTON-HOWARD-JUNEAU-LA CROSSE-MITCHELL-MONROE-MOWER-
OLMSTED-RICHLAND-VERNON-WABASHA-WINNESHIEK-WINONA-
550 AM CDT SUN JUN 8 2008

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

.DAY ONE...TODAY AND TONIGHT

SEVERAL ROUNDS OF THUNDERSTORMS WILL OCCUR ACROSS THE AREA INTO THIS
EVENING AHEAD OF A SLOW MOVING COLD FRONT. THESE STORMS WILL PRODUCE
HEAVY RAINS WHICH WILL AGGRAVATE EXISTING FLOODING AND CREATE NEW
FLOODING CONCERNS. A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH
THE DAY.

IN ADDITION TO THE HEAVY RAIN...THE STORMS WILL HAVE THE POTENTIAL
TO PRODUCE DAMAGING WINDS AND LARGE HAIL. THE MOST LIKELY TIMES FOR
THESE THREATS WILL BE BETWEEN 2 AND 10 PM.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE COLD FRONT WILL BECOME STATIONARY JUST TO THE SOUTHEAST OF THE
REGION MONDAY. AS AN AREA OF LOW PRESSURE MOVES ALONG THE FRONT...
THUNDERSTORMS WILL BE POSSIBLE ACROSS NORTHEAST IOWA INTO SOUTHWEST
AND CENTRAL WISCONSIN MONDAY AND MONDAY NIGHT.

ANOTHER WEAK COLD FRONT WILL MOVE INTO THE AREA NEXT WEEK AND WILL
KEEP THUNDERSTORMS IN THE FORECAST FROM TUESDAY THROUGH FRIDAY. AT
THIS TIME...SEVERE WEATHER IS NOT EXPECTED WITH ANY OF THESE STORMS
FROM MONDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. IN
ADDITION...RAINFALL AND FLOODING REPORTS WOULD BE APPRECIATED OVER
THE NEXT COUPLE DAYS.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

WIZ017-029-032>034-091100-
BUFFALO-CLARK-JACKSON-TAYLOR-TREMPEALEAU-
550 AM CDT SUN JUN 8 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF WESTERN INTO
NORTH CENTRAL WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

SEVERAL ROUNDS OF THUNDERSTORMS WILL OCCUR ACROSS THE AREA INTO THIS
EVENING AHEAD OF A SLOW MOVING COLD FRONT. THESE STORMS WILL PRODUCE
HEAVY RAINS WHICH COULD CREATE SOME FLOODING PROBLEMS.

IN ADDITION TO THE HEAVY RAIN...THE STORMS WILL HAVE THE POTENTIAL
TO PRODUCE DAMAGING WINDS AND LARGE HAIL. THE MOST LIKELY TIMES FOR
THESE THREATS WILL BE BETWEEN 2 AND 10 PM.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

ANOTHER WEAK COLD FRONT WILL MOVE INTO THE AREA NEXT WEEK AND WILL
KEEP THUNDERSTORMS IN THE FORECAST FROM TUESDAY THROUGH FRIDAY. AT
THIS TIME...SEVERE WEATHER IS NOT EXPECTED WITH ANY OF THESE STORMS
FROM TUESDAY THROUGH FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. IN
ADDITION...RAINFALL REPORTS WOULD BE APPRECIATED OVER THE NEXT COUPLE
DAYS. IF ANY FLOODING DOES DEVELOP...PLEASE REPORT THAT AS WELL.

.EMERGENCY MANAGEMENT COORDINATION...

NO CALL IS SCHEDULED.

04

In the hours before

Local storm report, Jun 8, 12:50 PM CDT, 1 hour 37 minutes before
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Local storm report, Jun 8, 12:58 PM CDT, 1 hour 29 minutes before
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Local storm report, Jun 8, 1:27 PM CDT, 1 hour before
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Local storm report, Jun 8, 1:56 PM CDT, 31 minutes before
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Local storm report, Jun 8, 2:14 PM CDT, 13 minutes before
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Local storm report, Jun 8, 2:18 PM CDT, 9 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 7:16 PM CDTTornado WarningARXRichland31 min
Jun 7, 7:20 PM CDTSevere Thunderstorm WarningARXAdams, Juneau34 min
Jun 7, 7:44 PM CDTFlash Flood WarningARXCrawford, Richland4 hr
Jun 7, 8:20 PM CDTRiver Flood WarningARXRichland, Vernon5 days
Jun 7, 8:20 PM CDTRiver Flood WarningARXCrawford, Vernon5 days
Jun 7, 8:20 PM CDTRiver Flood WarningARXCrawford, Vernon7 days
Jun 7, 8:20 PM CDTRiver Flood WarningARXCrawford10 days
Jun 7, 8:20 PM CDTRiver Flood WarningARXCrawford10 days
Jun 8, 12:06 AM CDTAreal Flood WarningARXJuneau, Monroe, Richland, Vernon8 hr
Jun 8, 3:24 AM CDTFlash Flood WarningARXCrawford, Grant, Richland, Vernon5 hr
Jun 8, 8:26 AM CDTAreal Flood WarningARXAdams, Crawford, Juneau, Monroe, Richland, Vernon6 hr
Jun 8, 6:17 PM CDTSevere Thunderstorm WarningARXGrant28 min
Jun 7, 7:02 PM CDTSevere Thunderstorm WarningARXMitchell43 min
Jun 7, 8:04 PM CDTRiver Flood WarningARXClayton7 days
Jun 7, 8:04 PM CDTRiver Flood WarningARXClayton7 days
Jun 7, 8:04 PM CDTRiver Flood WarningARXAllamakee6 days
Jun 7, 8:42 PM CDTRiver Flood WarningARXFloyd, Mitchell4 days
Jun 7, 11:24 PM CDTSevere Thunderstorm WarningARXFayette36 min
Jun 7, 11:46 PM CDTAreal Flood WarningARXHoward, Mitchell8 hr
Jun 8, 1:04 AM CDTSevere Thunderstorm WarningARXHoward56 min
Jun 8, 2:37 AM CDTFlash Flood WarningARXAllamakee, Winneshiek6 hr
Jun 8, 10:20 AM CDTRiver Flood WarningARXAllamakee, Winneshiek51 hr
Jun 7, 8:04 PM CDTRiver Flood WarningARXHouston3 days
Jun 8, 1:31 AM CDTFlash Flood WarningARXFillmore, Houston, Mower3 hr
Jun 8, 2:01 AM CDTFlash Flood WarningARXMower6 hr
Jun 8, 4:25 AM CDTFlash Flood WarningARXFillmore, Houston4 hr

Nearby

Areal Flood Warnings in Iowa, 2008Areal Flood Warnings in Wisconsin, 2008Areal Flood Warnings in Minnesota, 2008Every areal 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.