Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 20, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Sep 26, 1986, 7:09 PM CDT for Vernon County, Wisconsin. It was in force for 41 min.
The area
The counties it named.
The facts
- Issued
- Sep 26, 1986, 7:09 PM CDT (00:09 UTC)
- Expired
- Sep 26, 1986, 7:50 PM CDT
- In force
- 41 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
County Vernon County, WI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.2 hours before the alert went out and 240 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
- 1762 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KLSE 270010 SVRLSE WIC123-270050- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 709 PM CDT FRI SEP 26 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 750 PM CDT FOR PEOPLE IN FOLLOWING COUNTIES OF WEST CENTRAL WISCONSIN...VERNON AT 709 PM CDT..RADAR INDICATED A SEVERE THUNDERSTORM 35 MILES SOUTHEAST OF LA CROSSE BETWEEN LA FARGE AND HILLSBORO WISCONSIN. THIS STORM WAS MOVING NORTHEAST AT 30 MILES PER HOUR. PEOPLE IN THE WARNED AREA SHOULD BE ALERT FOR DAMAGING WINDS IN EXCESS OF 60 MILES PER HOUR..HAIL 3/4 INCH OR MORE IN DIAMETER.. DEADLY LIGHTNING..AND HEAVY RAIN THAT CAN QUICKLY FLOOD LOW LYING -AREAS. TAKE SHELTER IMMEDIATELY IN A REINFORCED BUILDING PREFERABLY ON THE LOWEST FLOOR OR IN THE BASEMENT. REMEMBER..SEVERE THUNDERSTORMS CAN ALSO PRODUCE TORNADOES WITHOUT WARNING. THOMPSON
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, Sep 26, 4:05 PM CDT, 3 hours 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 405 PM CDT FRI SEP 26 1986 ...SEVERE THUNDERSTORM WATCH FOR BUFFALO..TREMPEALEAU..AND JACKSON COUNTY AND ADJACENT COUNTIES EAST AND NORTH IN WISCONSIN UNTIL 1000 PM CDT... AT 400 PM CDT..STRONG THUNDERSTORMS HAD DEVELOPED RAPIDLY 60 MILES NORTHWEST OF LA CROSSE AROUND DURAND WISCONSIN. THESE STORMS WERE MOVING NORTHEAST AT 35 MILES PER HOUR. PERSONS IN BUFFALO..TREMPEALEAU..AND JACKSON COUNTY..WHICH ARE NORTH OF LA CROSSE..SHOULD BE ALERT FOR THE POSSIBILITY OF DANGEROUS LIGHTNING..HEAVY RAIN..STRONG WIND..AND POSSIBLY HAIL THE REST OF THIS AFTERNOON AND EVENING. STAY TUNED TO RADIO..TELEVISION..OR WEATHER RADIO FOR THEU LATEST INFORMATION. THOMPSON
Special weather statement, Sep 26, 5:03 PM CDT, 2 hours 6 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 505 PM CDT FRI SEP 26 1986 ...SEVERE THUNDERSTORM WATCH FOR BUFFALO..TREMPEALEAU..AND JACKSON COUNTY AND ADJACENT COUNTIES EAST AND NORTH IN WISCONSIN UNTIL 1000 PM CDT... AT 500 PM CDT..STRONG THUNDERSTORMS WERE LOCATED 50 MILES NORTH OF LA CROSSE BETWEEN OSSE0 AND ALMA WISCONSIN. THESE STORMS WERE MOVING NORTHEAST AT 35 MILES PER HOUR AND WERE PRODUCING HEAVY RAIN.. DANGEROUS LIGHTNING..AND POSSIBLY MARBLE SIZE HAIL. NO SEVERE WEATHER WAS OCCURRING WITH THESE STORMS AS OF 500 PM CDT. PERSONS IN BUFFALO..TREMPEALEAU..AND JACKSON COUNTY..WHICH ARE NORTH OF LA CROSSE..SHOULD BE ALERT FOR THE POSSIBILITY OF DANGEROUS LIGHTNING..HEAVY RAIN..STRONG WIND..AND POSSIBLY HAIL THE REST OF THIS EVENING. BE SAFE AND PROTECT YOURSELF AND YOUR FAMMILY. GO INDOORS IF A STORM AFFECTS YOUR AREA. STAY TUNED TO RADIO..TELEVISION..OR WEATHER RADIO FOR THE LATEST INFORMATION. THOMPSON
Special weather statement, Sep 26, 5:47 PM CDT, 1 hour 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 550 PM CDT FRI SEP 26 1986 ...SEVERE THUNDERSTORM WATCH FOR BUFFALO..TREMPEALEAU..AND JACKSON COUNTY AND ADJACENT COUNTIES EAST AND NORTH IN WISCONSIN UNTIL 1000 PM CDT... AT 545 PM CDT..STRONG THUNDERSTORMS WERE MOVING ALONG THE JACKSON ..EAU CLAIRE COUNTY LINE..50 MILES NORTH OF LA CROSSE. THESE STORMS WERE MOVING NORTHEAST AT 35 MILES PER HOUR AND WERE PRODUCING HEAVY RAIN.. DANGEROUS LIGHTNING..AND POSSIBLY MARBLE SIZE HAIL. PERSONS IN BUFFALO..TREMPEALEAU..AND JACKSON COUNTY..WHICH ARE NORTH OF LA CROSSE..SHOULD STILL BE ALERT FOR THE POSSIBILITY OF DANGEROUS LIGHTNING..HEAVY RAIN..STRONG WIND..AND POSSIBLY HAIL THE REST OF THIS EVENING. PEOPLE ELSEWHERE AROUND THE LA CROSSE TRI STATE AREA..ESPECIALLY BOATERS AND CAMPERS..SHOULD BE ALERT FOR THE POSSIBILITY OF STRONG THUNDERSTORMS TONIGHT. BE SAFE AND PROTECT YOURSELF AND YOUR FAMILY. GO INDOORS IF A STORM AFFECTS YOUR AREA. STAY TUNED TO RADIO..TELEVISION..OR WEATHER RADIO FOR THE LATEST INFORMATION. THOMPSON
Special weather statement, Sep 26, 6:42 PM CDT, 27 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 645 PM CDT FRI SEP 26 1986 ...SEVERE THUNDERSTORM WATCH FOR BUFFALO..TREMPEALEAU..AND JACKSON COUNTY AND ADJACENT COUNTIES EAST AND NORTH IN WISCONSIN UNTIL 1000 PM CDT... ...SEVERE THUNDERSTORM WATCH FOR LA CROSSE..MONROE..VERNON..AND CRAWFORD COUNTY IN WEST WISCONSIN INCLUDING ADJACENT AREAS OF SOUTHEAST MINNESOTA AND NORTHEAST IOWA UNTIL MIDNIGHT CDT... AT 645 PM CDT..ISOLATED STRONG THUNDERSTORMS WITH LOCALLY HEAVY RAIN AND DANGEROUS LIGHTNING WERE LOCATED 30 MILES SOUTHEAST OF LA CROSSE BETWEEN WILTON AND LA FARGE WISCONSIN. THESE STORMS WERE MOVING NORTHEAST AT 35 MILES PER HOUR. NO THUNDERSTORMS WERE OCCURRING ELSEWHERE AROUND THE LA CROSSE TRI STATE AREA AS OF 645 PM CDT. PEOPLE AROUND THE LA CROSSE TRI STATE AREA..ESPECIALLY BOATERS AND CAMPERS..SHOULD BE ALERT FOR THE POSSIBILITY OF STRONG THUNDERSTORMS TONIGHT. BE SAFE AND PROTECT YOURSELF AND YOUR FAMILY. GO INDOORS IF A STORM AFFECTS YOUR AREA. STAY TUNED TO RADIO..TELEVISION..OR WEATHER RADIO FOR THE LATEST INFORMATION. THOMPSON
Special weather statement, Sep 26, 6:47 PM CDT, 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ROCHESTER MN 642 PM CDT FRI SEP 26 1986 ...STRONG THUNDERSTORMS FROM IOWA MOVING INTO SOUTH CENTRAL MINNESOTA... AT 640 PM CDT THUNDERSTORMS..A FEW STRONG..WERE MOVING THROUGH NORTH CENTRAL IOWA AND ENTERING SOUTH CENTRAL MINNESOTA AND INTO THE COUNTIES OF FARIBAULT AND FREEBORN. THESE STORMS WERE MOVING NORTHEAST AT 35 MPH AND WILL SPREAD ACROSS FREEBORN..STEELE..AND INTO DODGE COUNTIES BY 7380 PM THIS EVENING. A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR EXTREME SOUTHERN MINNESOTA UNTIL MIDNIGHT. ANDERSON
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1986Every severe thunderstorm warning in 1986
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.