Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 2, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Apr 8, 1991, 3:02 PM CDT for Crawford County, Wisconsin. It was in force for 51 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 8, 1991, 3:02 PM CDT (20:02 UTC)
- Expired
- Apr 8, 1991, 3:53 PM CDT
- In force
- 51 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
County Crawford County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 8, 3:20 PM CDT | Thunderstorm Wind 0 | Crawford, WI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.0 hours before the alert went out and 266 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 892 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KLSE 082002
SVRLSE
WIC023-082100-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
302 PM CDT MON APR 8 1991
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 400 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
IN SOUTHWEST WISCONSIN
...CRAWFORD COUNTY
AT 300 PM...WEATHER RADAR INDICATED A SEVERE THUNDERSTORM OVER EXTREME
NORTHEAST IOWA...OR 45 MILES SOUTH OF LA CROSSE. THE THUNDERSTORM
WAS MOVING EAST AT 35 MILES AN HOUR AND WILL BE AFFECTING THE
COMMUNITES OF PRAIRIE DU CHIEN...FERRYVILLE...AND GAYS MILLS BETWEEN
300 AND 400 PM.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
BRUCE
NNNNWhat forecasters said that day
The local office's own words before this severe thunderstorm 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, Apr 8, 2:45 PM CDT, 17 minutes before
WIZ010-014-082130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 345 PM CDT MON APR 8 1991 ...SEVERE THUNDERSTORM WATCH FOR CRAWFORD COUNTY UNTIL 900 PM CDT... ...STRONG THUNDERSTORMS MOVING WILL BE MOVING INTO SOUTHWEST WISCONSIN AFTER 300 PM... AT 340 PM...RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM EXTREME SOUTHEAST MINNESOTA INTO NORTHEAST IOWA. THE LINE WAS MOVING EAST AT 35 MILES AN HOUR AND WILL BE MOVING INTO AREAS OF SOUTHWEST WISCONSIN FROM THE LA CROSSE AREA SOUTHWARD SHORTLY AFTER 300 PM. THESE STORMS WILL LIKELY PRODUCE WIND GUSTS OF 35 TO 45 MILES AN HOUR...SMALL HAIL...AND HEAVY RAIN. PEOPLE IN SOUTHWEST WISCONSIN SHOULD MONITOR RADIO...TV...OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. BRUCE
Special weather statement, Apr 8, 2:50 PM CDT, 12 minutes before
WIZ010-014-082130- SPECIAL WEATHER STATEMENT...CORRECTED TIME... NATIONAL WEATHER SERVICE LA CROSSE WI 245 PM CDT MON APR 8 1991 ...SEVERE THUNDERSTORM WATCH FOR CRAWFORD COUNTY UNTIL 900 PM CDT... ...STRONG THUNDERSTORMS MOVING WILL BE MOVING INTO SOUTHWEST WISCONSIN AFTER 300 PM... AT 240 PM...RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM EXTREME SOUTHEAST MINNESOTA INTO NORTHEAST IOWA. THE LINE WAS MOVING EAST AT 35 MILES AN HOUR AND WILL BE MOVING INTO AREAS OF SOUTHWEST WISCONSIN FROM THE LA CROSSE AREA SOUTHWARD SHORTLY AFTER 300 PM. THESE STORMS WILL LIKELY PRODUCE WIND GUSTS OF 35 TO 45 MILES AN HOUR...SMALL HAIL...AND HEAVY RAIN. PEOPLE IN SOUTHWEST WISCONSIN SHOULD MONITOR RADIO...TV...OR NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE WARNINGS. BRUCE
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning in 1991
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.