Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 14, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Aug 4, 1989, 6:36 PM CDT for Vernon County, Wisconsin. It was in force for 54 min. 3 reports 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
- Aug 4, 1989, 6:36 PM CDT (23:36 UTC)
- Expired
- Aug 4, 1989, 7:30 PM CDT
- In force
- 54 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 4, 6:50 PM CDT | Hail 2.5 | Vernon, WI | |
| Aug 4, 7:05 PM CDT | Thunderstorm Wind 0 | Vernon, WI | |
| Aug 4, 7:15 PM CDT | Thunderstorm Wind 0 | Vernon, 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, 11.6 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- NaN m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -28 m²/s²
- 0-3 km storm-relative helicity
- 10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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, Aug 4, 4:21 PM CDT, 2 hours 15 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 420 PM CDT FRI AUG 4 1989 ...SEVERE THUNDERSTORM WATCH UNTIL 11 PM CDT FOR LA CROSSE AND THE ENTIRE SURROUNDING TRI STATE AREA... AS OF 420 PM CDT...THUNDERSTORMS WITH HEAVY RAIN AND DANGEROUS LIGHTNING WERE LOCATED 50 TO 60 MILES NORTHWEST OF LA CROSSE OR BETWEEN DURAND AND NELSON WISCONSIN. THE STORMS WERE MOVING EAST AT 35 MILES PER HOUR AND WILL AFFECT AREAS BETWEEN NELSON..MONDOVI..AND ALMA WISCONSIN OR ABOUT 45 TO 55 MILES NORTHWEST OF LA CROSSE THE REST OF THIS AFTERNOON. PERSONS IN LA CROSSE AND THE SURROUNDING TRI STATE AREA..ESPECIALLY BOATERS AND CAMPERS..SHOULD REMAIN ALERT FOR THUNDERSTORMS. IF A STORM AFFECTS YOUR AREA..GET OFF OF LAKES AND RIVERS. STAY AWAY FROM OPEN FIELDS AND TALL OBJECTS SUCH AS TREES AND TELEPHONE POLES. REMEMBER..LIGHTNING IS A STORMS WORST KILLER. STAY TUNED TO RADIO..TELEVISION..OR WEATHER RADIO FOR THE LATEST INFORMAT/ION. THOMPSON
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 4, 5:20 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo | 40 min |
| Aug 4, 5:49 PM CDT | Severe Thunderstorm Warning | ARX | La Crosse | 56 min |
| Aug 4, 6:03 PM CDT | Severe Thunderstorm Warning | ARX | Trempealeau | 42 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1989Every severe thunderstorm warning in 1989
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.