Alert archive / Wisconsin / Flash Flood Warnings in 2007

Flash Flood Warning 5, NWS La Crosse, WI

August 14, 2007Monroe County, Vernon County, Wisconsin

NWS La Crosse, WI issued this flash flood warning at Aug 14, 2007, 2:01 AM CDT for Monroe County, Vernon County, Wisconsin. It was in force for 3 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
Aug 14, 2007, 2:01 AM CDT (07:01 UTC)
Expired
Aug 14, 2007, 5:00 AM CDT
In force
3 hr
Issued by
NWS La Crosse, WI
Area
Whole counties

Counties Monroe County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 38 km from the middle of the area, began a volume at 07:03 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 7.0 hours before the alert went out and 224 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, Green Bay/Straub, WI at 00:00Z on 2007-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 2007-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2075 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS53 KARX 140701
FFWARX
WIC081-123-141000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
201 AM CDT TUE AUG 14 2007

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MONROE COUNTY IN WEST CENTRAL WISCONSIN
  VERNON COUNTY IN SOUTHWEST WISCONSIN

* UNTIL 500 AM CDT

* AT 201 AM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED
  THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MUCH OF THE
  AREA. ESTIMATES FROM RADAR INDICATE THAT 2 TO 3 INCHES OF RAIN
  HAS FALLEN OVER THE PAST FEW HOURS OVER THIS AREA. 

* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...CASHTON...COON
  VALLEY...FORT MC COY...HILLSBORO...LA FARGE...SPARTA AND STODDARD.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO FORGE
FLOODED ROADWAYS BY FOOT OR AUTOMOBILE. REMEMBER...TURN AROUND DONT
DROWN.

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLOODING OF CREEKS AND
STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER ROCK AND MUD-SLIDES IN STEEP TERRAIN. PERSONS IN THE WARNED
AREA SHOULD BE PREPARED TO ACT QUICKLY TO AVOID THESE HAZARDS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES INCLUDING SPORT UTILITY VEHICLES AND
PICKUPS. REMEMBER...TURN AROUND DONT DROWN.

LAT...LON 4402 9031 4356 9031 4356 9067 4342 9067
      4343 9121 4372 9125 4372 9091 4402 9091

$$

MW
2 follow-up statements
000 
WGUS73 KARX 140755
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
255 AM CDT TUE AUG 14 2007

WIC081-123-141000-
MONROE WI-VERNON WI-
255 AM CDT TUE AUG 14 2007

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 AM CDT FOR
VERNON AND SOUTHERN MONROE COUNTIES...

AT 254 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS SHOWING 
THAT THE THUNDERSTORMS PRODUCING THE HEAVY RAINFALL HAD MAINLY 
SHIFTED SOUTH AND EAST OF THE AREA. HOWEVER...SCATTERED SHOWERS AND 
THUNDERSTORMS WILL REMAIN POSSIBLE FOR THE NEXT HOUR. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TOMAH... 
SPARTA...FORT MC COY...COON VALLEY AND CASHTON.  SOME CREEKS AND 
RIVERS INCLUDED IN THE WARNING...THE LITTLE LA CROSSE RIVER...BRUSH 
CREEK...MOORE CREEK...BILLINGS CREEK...AND THE KICKAPOO RIVER. 

RAINFALL AMOUNTS OF 2 TO 3 INCHES FELL OVER THE AREA. ALTHOUGH THERE 
HAVE NOT YET BEEN ANY REPORTS...MUDSLIDES AND HIGH WATER REMAIN 
POSSIBLE. 

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLOODING OF CREEKS AND
STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER ROCK AND MUD-SLIDES IN STEEP TERRAIN. PERSONS IN THE WARNED
AREA SHOULD BE PREPARED TO ACT QUICKLY TO AVOID THESE HAZARDS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES INCLUDING SPORT UTILITY VEHICLES AND
PICKUPS. REMEMBER...TURN AROUND DONT DROWN.

PLEASE REPORT ANY FLOODING TO YOUR LOCAL LAW ENFORCEMENT OFFICE AND
TELL THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4402 9031 4356 9031 4356 9067 4342 9067
      4343 9121 4372 9125 4372 9091 4402 9091

$$

MW
000 
WGUS73 KARX 140856
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
355 AM CDT TUE AUG 14 2007

WIC081-123-140903-
MONROE WI-VERNON WI-
355 AM CDT TUE AUG 14 2007

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR VERNON AND SOUTHERN
MONROE COUNTIES...

THE THREAT FOR FLASH FLOODING HAS DIMINISHED ACROSS THE WARNED AREA.
THEREFORE...THE FLASH FLOOD WARNING HAS BEEN CANCELLED..

TO CALL YOUR FLOODING REPORT DIRECTLY INTO THE NATIONAL WEATHER
SERVICE DIAL 6 0 8 7 8 2 1 8 9 4.

LAT...LON 4402 9031 4356 9031 4356 9067 4342 9067
      4343 9121 4372 9125 4372 9091 4402 9091

$$

MW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 10:15 PM CDTSevere Thunderstorm WarningARXBuffalo, Jackson, Trempealeau60 min
Aug 13, 11:14 PM CDTSevere Thunderstorm WarningARXJackson, Trempealeau46 min
Aug 13, 11:57 PM CDTSevere Thunderstorm WarningARXJackson31 min
Aug 14, 12:09 AM CDTSevere Thunderstorm WarningARXBuffalo56 min
Aug 14, 1:38 AM CDTSevere Thunderstorm WarningARXLa Crosse, Monroe, Vernon52 min
Aug 14, 2:13 AM CDTSevere Thunderstorm WarningARXCrawford, Richland47 min
Aug 14, 2:20 AM CDTSevere Thunderstorm WarningARXGrant55 min

Nearby

Flash Flood Warnings in Wisconsin, 2007Every flash flood warning 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.