Alert archive / Wisconsin / Flash Flood Warnings in 1993

Flash Flood Warning 4, NWS La Crosse, WI

June 20, 1993Buffalo County, Trempealeau County, Wisconsin

NWS La Crosse, WI issued this flash flood warning at Jun 20, 1993, 10:58 AM CDT for Buffalo County, Trempealeau County, Wisconsin. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jun 20, 1993, 10:58 AM CDT (15:58 UTC)
Expired
Jun 20, 1993, 11:00 PM CDT
In force
12 hr
Issued by
NWS La Crosse, WI
Area
Whole counties

Counties Buffalo County, WI, Trempealeau County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 4.0 hours before the alert went out and 171 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, Minneapolis, MN at 12:00Z on 1993-06-20Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 1993-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.193958Sfc1 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
530 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
30 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 
TTAA00 KLSE 201558
FFWLSE
WIC011-121-210400-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1058 AM CDT SUN JUN 20 1993
 
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1100 PM CDT
    FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN WEST CENTRAL WISCONSIN...
 
       ...THE BUFFALO RIVER IN BUFFALO AND TREMPEALEAU COUNTIES
 
ACCORDING TO THE DIRECTOR OF EMERGENCY GOVERNMENT IN TREMPEALEAU
COUNTY...THE BUFFALO RIVER IN THE NORTHERN PART OF TREMPEALEAU
COUNTY WAS FLOODING AT OSSEO. WATER WAS COVERING ROADWAYS AND
THERE HAS BEEN SOME EVACUATIONS.
 
CITIES ALONG THE BUFFALO RIVER INCLUDE STRUM AND ELEVA OF TREMPEALEAU
COUNTY AND MONDOVI OF BUFFALO COUNTY.  THE BUFFALO RIVER THENS
RUNS THROUGH BUFFALO COUNTY AND EMPTIES INTO THE MISSISSIPPI RIVER
A FEW MILES NORTH OF ALMA.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
INGRAM
 
&
NNNN

What forecasters said that day

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

In the hours before

Special weather statement, Jun 20, 10:33 AM CDT, 25 minutes before
WIZ010-014-210200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1030 AM CDT SUN JUN 20 1993

...FLASH FLOOD WARNING FOR JACKSON COUNTY UNTIL 445 PM...

THE OFFICE OF EMERGENCY GOVERNMENT IN JACKSON COUNTY HAS REQUESTED
THAT ALL PHONE LINES BE RESERVED FOR EMERGENCY USAGE ONLY.

TV AND RADIO STATIONS....

THE NATIONAL WEATHER SERVICE IN LA CROSSE IS IN CONSTANT CONTACT WITH
JACKSON COUNTY OFFICIALS...AND WE WILL BE RELAYING INFORMATION TO YOU
UNDER FLASH FLOOD STATEMENTS...AFOS HEADER MKEFFSLSE AND NOAA WEATHER
RADIO. DO NOT CALL THEM AND DO NOT CALL THE NATIONAL WEATHER SERVICE.
WE ARE DOING EVERYTHING WE CAN TO GET THE INFORMATION TO YOU.

YOUR COOPERATION IN THIS MA$TTER IS URGENTLY NEEDED AND APPRECIATED.

INGRAM/BRUCE

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 10:04 PM CDTFlash Flood WarningARXJackson8 hr
Jun 20, 7:47 AM CDTFlash Flood WarningARXJackson9 hr
Jun 20, 4:00 PM CDTFlash Flood WarningARXJackson11 hr

Nearby

Flash Flood Warnings in Wisconsin, 1993Every flash flood warning in 1993

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.