Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 3, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jun 17, 1987, 5:05 PM CDT for Crawford County, Wisconsin. It was in force for 55 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
- Jun 17, 1987, 5:05 PM CDT (22:05 UTC)
- Expired
- Jun 17, 1987, 6:00 PM CDT
- In force
- 55 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
County Crawford County, WI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 17, 5:08 PM CDT | Tornado F0 | 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, 10.1 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
- 1976 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 39 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 172201 COR SVRLSE WIC023-172205- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LA CROSSE WI CORRECTED FOR HEADER TIME 505 PM CDT WED JUN 17 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF SOUTH WEST WISCONSIN...CRAWFORD AT 510 PM CDT LOCAL RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES EAST OF PRARIE DU CHEIN..ABOUT 50 MILES SOUTH OF LA CROSSE WISCONSIN SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS..LARGE HAIL..AND DEADLY LIGHTNING. TORNADOES CAN ALSO DEVELOP FROM SEVERE THUNDERSTORMS. IF THREATENING WEATHER APPROACHES..TAKE SHELTER IMMEDIATELY. ZIMMERMAN
What 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, Jun 17, 2:00 PM CDT, 3 hours 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 200 PM CDT WED JUN 17 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM CDT FOR CRAWFORD COUNTY OF SOUTHWEST WISCONSIN AND ADJACENT COUNTIES IN NORTHEAST IOWA... .AT 200 PM CDT..ON RADAR A LINE OF STRONG THUNDERSTORMS EXTENDED FROM 30 MILES NORTH OF EAU CLAIRE WISCONSIN SOUTH SOUTHWEST TO 25 MILES NORTHEAST OF LA CROSSE WISCONSIN NEAR THE CITY OF WINONA MINNESOTA.. AND SOUTH INTO NORTHCENTRAL IOWA NEAR WATERLOO. THE LINE OF VERY STRONG THUNDERSTORMS WAS MOVING TO THE EAST AT 15 MILES AN HOUR. THE THUNDERSTROMS SHOULD MOVE INTO SOUTHWESTERN WISCONSIN AFTER 400 PM CDT THIS AFTERNOON. IN OTHER AREAS..SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURING NORTH OF LA CROSSE IN BUFFALO AND TREMPEALEAU COUNTIES OF WEST CENTRAL WISCONSIN. NO SEVERE WEATHER HAS BEEN REPORTED IN WEST CENTRAL WISCONSIN AS OF 200 PM CDT...HOWEVER THE POTENTIAL FOR THE DEVELOPMENT OF SEVERE WEATHER IS POSSIBLE LATER THIS AFTERNOON AND EARLY EVENING IN WEST CENTRAL WISCONSIN. CAMPERS AND BOATERS SHOULD BE ADVISED TO SEEK HARBOR AND INDOOR SHELTER IF THREATENING WEATHER APPROACHES YOUR AREA. PERSONS IN TH ESE AREAS SHOULD BE ALERT FOR HEAVY RAIN..DANGEROUS LIGHTNING..AND POSSIBLY HAIL. MOTORISTS ARE ALSO URGED TO SLOW DOWN WHEN ENCOUNTERING HEAVY RAIN AS THERE MAY BE PONDING OF WATER ESPECIALLY IN URBAN AREAS. SCHNEIDER
Special weather statement, Jun 17, 2:48 PM CDT, 2 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 250 PM CDT WED JUN 17 1987 ...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 800 PM CDT FOR CRAWFORD COUNTY OF SOUTHWEST WISCONSIN AND ADJACENT COUNTIES IN NORTHEAST IOWA... .AT 245 PM CDT..ON RADAR A LINE OF STRONG THUNDERSTORMS EXTENDED FROM NEAR EAU CLAIRE WISCONSIN...SOUTH SOUTHWEST TO 20 MILES EAST OF LA CROSSE WISCONSIN THROUGH THE CITY OF WINONA MINNESOTA..AND SOUTH INTO NORTHEASTERN IOWA TO AROUND WATERLOO..WITH THE HEAVIEST STORMS IN NORTHEASTERN IOWA. THE LINE OF STRONG THUNDERSTORMS WAS MOVING TO THE EAST AT 15 MILES AN HOUR. THE THUNDERSTORMS SHOULD MOVE INTO SOUTHWESTERN WISCONSIN AFTER 400 PM CDT THIS AFTERNOON. IN OTHER AREAS..SCATTERED SHOWERS AND THUNDERSTORMS WERE OCCURING NORTH OF LA CROSSE IN BUFFALO AND TREMPEALEAU COUNTIES OF WEST CENTRAL WISCONSIN. NO SEVERE WEATHER HAS BEEN REPORTED IN WEST CENTRAL WISCONSIN AS OF 245 PM CDT...HOWEVER THE POTENTIAL FOR THE DEVELOPMENT OF SEVERE WEATHER IS POSSIBLE LATER THIS AFTERNOON AND EARLY EVENING IN SOUTH CENTRAL WISCONSIN. CAMPERS AND BOATERS SHOULD BE ADVISED TO SEEK HARBOR AND INDOOR SHELTER IF THREATENING WEATHER APPROACHES YOUR AREA.6 PERSONS IN THESE AREAS SHOULD BE ALERT FOR HEAVY RAIN..DANGEROUS LIGHTNING..AND POSSIBLY HAIL. MOTORISTS ARE ALSO URGED TO SLOW DOWN WHEN ENCOUNTERING HEAVY RAIN AS THERE MAY BE PONDING OF WATER ESPECIALLY IN URBAN AREAS. SCHNEIDER
Special weather statement, Jun 17, 3:32 PM CDT, 1 hour 33 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 335 PM CDT WED JUN 17 1987 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FOR CRAWFORD COUNTY OF SOUTHWEST WISCONSIN AND ADJACENT COUNTIES IN NORTHEAST IOWA... .AT 330 PM CDT..ON RADAR A LINE OF STRONG THUNDERSTORMS EXTENDED FROM 25 MILES EAST OF EAU CLAIRE WISCONSIN SOTH TO 5 MILES WEST OF LA CROSSE WISCONSIN ... THEN SOUTHWEST INTO NORTHEASTERN IOWA NEAR WATERLOO. HEAVIEST THUNDERSTORMS WERE OCCURRING OVER NORTHEASTERN IOWA. THE LINE OF STRONG THUNDERSTORMS CONTINUED MOVING TO THE EAST AT 20 MPH AND WILL BE MOVING INTO THE CITY OF LA CROSSE AND ADJACENT CITIES 25 MMILES NORTH AND SOUTH BY 345 PM CDT. NO SEVERE WEATHER HAS BEEN REPORTED IN WEST CENTRAL WISCONSIN AS OF 330 PM CDT...HOWEVER THE POTENTIAL FOR THE DEVELOPMENT OF SEVERE WEATHER IS POSSIBLE ... AND PERSONS ... ESPECIALLY THOSE IN EXTREME SOUTHWEST WISCONSIN SHOULD BE ALERT TO THREATING WEATHER CONDITIONS FOR THE NEXT 2 TO 3 HOURS. CAMPERS AND BOATERS ALONG THE MISSISSIPPI RIVER AND AREA LAKES ARE ADVISED TO SEEK SHELTER AND BE AWARE OF DANGEROUS LIGHTENING. PERSONS IN THESE AREAS SHOULD ALSO BE ALERT FOR HEAVY RAIN..DANGEROUS LIGHTNING..AND POSSIBLY HAIL. MOTORISTS ARE ALSO URGED TO SLOW DOWN WHEN ENCOUNTERING HEAVY RAIN AS THERE MAY BE PONDING OF WATER ESPECIALLY IN URBAN AREAS. ZIMMERMAN
Special weather statement, Jun 17, 4:12 PM CDT, 53 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 415 PM CDT WED JUN 17 1987 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FOR CRAWFORD COUNTY OF SOUTHWEST WISCONSIN AND ADJACENT COUNTIES IN NORTHEAST IOWA... .AT 410 PM CDT..ON RADAR A LINE OF STRONG THUNDERSTORMS EXTENDED FROM 25 MILES EAST OF EAU CLAIRE WISCONSIN SOUTH TO LA CROSSE WISCONSIN... THEN SOUTHWEST INTO NORTHEASTERN IOWA 10 MILES EAST OF WATERLOO. HEAVIEST THUNDERSTORMS WERE OCCURRING OVER NORTHEASTERN IOWA. THE LINE OF STRONG THUNDERSTORMS CONTINUED MOVING TO THE EAST AT 20 MPH AND WILL BE MOVING INTO THE CITY OF BLACK RIVER FALLS AND CITIES 25 MILES NORTH AND SOUTH BY 430 PM CDT. NO SEVERE WEATHER HAS BEEN REPORTED IN WEST CENTRAL WISCONSIN AS OF 415 PM CDT...HOWEVER THE POTENTIAL FOR THE DEVELOPMENT OF SEVERE WEATHER IS POSSIBLE...AND PERSONS...ESPECIALLY THOSE IN EXTREME SOUTHWEST WISCONSIN SHOULD BE ALERT TO THREATING WEATHER CONDITIONS FOR THE NEXT 2 TO 3 HOURS. CAMPERS AND BOATERS ALONG THE MISSISSIPPI RIVER AND AREA LAKES ARE ADVISED TO SEEK SHELTER AND BE AWARE OF DANGEROUS LIGHTENING. PERSONS IN THESE AREAS SHOULD ALSO BE ALERT FOR HEAVY RAIN..DANGEROUS LIGHTNING..AND POSSIBLY HAIL. MOTORISTS ARE ALSO URGED TO SLOW DOWN WHEN ENCOUNTERING HEAVY RAIN AS THERE MAY BE PONDING OF WATER ESPECIALLY IN URBAN AREAS. SCHNEIDER
Special weather statement, Jun 17, 4:54 PM CDT, 11 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 500 PM CDT WED JUN 17 1987 ...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT FOR CRAWFORD COUNTY OF SOUTHWEST WISCONSIN AND ADJACENT COUNTIES IN NORTHEAST IOWA... .AT 455 PM CDT..ON RADAR A LINE OF STRONG THUNDERSTORMS EXTENDED FROM LA CROSSE WISCONSIN SOUTH ALONG THE MISSISSIPPI RIVER TO NEAR PRARIE DU CHEIN..60 MILES SOUTH OF LA CROSSE..AND INTO EASTERN IOWA. THE STRONGEST THUNDERSTORMS WERE OCCURRING OVER NORTHEASTERN IOWA..AND WILL BE MOVING INTO CRAWFORD COUNTY NEAR PRARIE DU CHEIN BY 510 PM CDT. BRIEF HEAVY DOWNPOURS..WINDS UP TO 50 MILES AN HOUR..AND POSSIBLY SOME HAIL CAN BE EXPECTED WITH THESE STORMS. THE LINE OF STRONG THUNDERSTORMS WAS MOVING TO THE EAST AT 40 MPH. IN OTHER AREAS...SHOWERS AND ISOLATED THUNDERSTORMS CONTINUED NORTH OF LA CROSSE IN JACKSON COUNTY NEAR BLACK RIVER FALLS. THESE SHOWERS AND THUNDERSTORMS ARE MOVING TO THE EAST AT 25 MILES AN HOUR. NO SEVERE WEATHER HAS BEEN REPORTED IN WEST CENTRAL WISCONSIN AS OF 455 PM CDT...HOWEVER THE POTENTIAL FOR THE DEVELOPMENT OF SEVERE WEATHER IS POSSIBLE...AND PERSONS...ESPECIALLY THOSE IN CRAWFORD COUNTY IN EXTREME SOUTHWEST WISCONSIN SHOULD BE ALERT TO THREATING WEATHER CONDITIONS FOR THE NEXT 1 TO 2 HOURS. CAMPERS AND BOATERS ALONG THE MISSISSIPPI RIVER AND AREA LAKES ARE ADVISED TO SEEK SHELTER AND BE AWARE OF DANGEROUS LIGHTENING. MOTORISTS ARE ALSO URGED TO SLOW DOWN WHEN ENCOUNTERING HEAVY RAIN AS THERE MAY BE PONDING OF WATER ESPECIALLY IN URBAN AREAS. SCHNEIDER
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1987Every severe thunderstorm warning in 1987
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.