Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 1, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Apr 25, 1986, 4:50 PM CST for La Crosse County, Wisconsin. It was in force for 60 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 25, 1986, 4:50 PM CST (22:50 UTC)
- Expired
- Apr 25, 1986, 5:50 PM CST
- In force
- 60 min
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
County La Crosse 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 |
|---|---|---|---|
| Apr 25, 5:25 PM CST | Hail 1.25 | La Crosse, 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
Minneapolis, MN (KSTC), launched 12:00Z, 10.8 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 683 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Apr 25, 4:15 PM CST, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 415 PM CST SUN APR 20 1986 ...SCATTERED THUNDERSTORMS DEVELOPING IN WEST CENTRAL WISCONSIN AND SOUTHWEST WISCONSIN... RADAR SHOWED AN AREA OF THUNDERSTORMS DEVELOPING ALONG THE MISSISSIPPI RIVER BETWEEN WINONA MINNESOTA AND LA CROSSE WISCONSIN. THESE THUNDERSTORMS WILL BE MOVING TO THE EAST THROUGH THE FOLLOWING WEST CENTRAL WISCONSIN COUNTIES .. TREMPEALEAU .. LA CROSSE .. AND VERNON FOR THE NEXT 1 TO 2 HOURS. NO SEVERE WEATHER HAS BEEN REPORTED .. HOWEVER THE AIR OVER WESTERN WISCONSIN IS VERY UNSTABLE AND THUNDERSTORMS COULD INTENSIFY VERY RAPIDLY. PERSONS SHOULD BE ON THE LOOKOUT FOR THREATING WEATHER AND BE PREPnARED TO SEEK SHELTER. ZIMMERMAN
Special weather statement, Apr 25, 4:25 PM CST, 25 minutes before
SPECIAL WEATHER STATEMENT..CORRECTION.. NATIONAL WEATHER SERVICE LA CROSSE WI 425 PM CST SUN APR 25 1986 ...SCATTERED THUNDERSTORMS DEVELOPING IN WEST CENTRAL WISCONSIN AND SOUTHWEST WISCONSIN... RADAR SHOWED AN AREA OF THUNDERSTORMS DEVELOPING ALONG THE MISSISSIPPI RIVER BETWEEN WINONA MINNESOTA AND LA CROSSE WISCONSIN. THESE THUNDERSTORMS WILL BE MOVING TO THE EAST THROUGH THE FOLLOWING WEST CENTRAL WISCONSIN COUNTIES .. TREMPEALEAU .. LA CROSSE .. AND VERNON FOR THE NEXT 1 TO 2 HOURS. NO SEVERE WEATHER HAS BEEN REPORTED .. HOWEVER THE AIR OVER WESTERN WISCONSIN IS VERY UNSTABLE AND THUNDERSTORMS COULD INTENSIFY VERY RAPIDLY. PERSONS SHOULD BE ON THE LOOKOUT FOR THREATING WEAwTHER AND BE PREPARED TO SEEK SHELTER. ZIMMERMAN
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.