Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 137, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Sep 9, 1990, 9:31 PM CDT for Clark County, Wisconsin. It was in force for 29 min. 2 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
- Sep 9, 1990, 9:31 PM CDT (02:31 UTC)
- Expired
- Sep 9, 1990, 10:00 PM CDT
- In force
- 29 min
- Issued by
- NWS Twin Cities, MN
- Area
- Whole counties
County Clark 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 |
|---|---|---|---|
| Sep 9, 9:35 PM CDT | Hail 2.75 | Clark, WI | |
| Sep 9, 10:05 PM CDT | Thunderstorm Wind 0 | Clark, 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 00:00Z, 2.5 hours before the alert went out and 201 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
- 1958 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1018 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 54 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMKE 100232
SVRMKE
WIC019-100300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
931 PM CDT SUN SEP 9 1990
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS EXTENDED THE
SEVERE THUNDERSTORM WARNING UNTIL 1000 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN CENTRAL WISCONSIN
...CLARK
AT 930 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM SOUTH OF
GREENWOOD ABOUT 50 MILES WEST SOUTHWEST OF WAUSAU. THE STORM IS NOW
MOVING SOUTHEAST AT 25 MPH AND WILL BE AFFECTING THE CHRISTIE AND
NEILSVILLE AREAS.
THIS STORM HAS HAD A HISTORY OF PRODUCING DAMAGING HAIL AND STORNG
WINDS.
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.The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 7:34 PM CDT | Severe Thunderstorm Warning | MPX | Pepin | 41 min |
| Sep 9, 8:03 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 27 min |
| Sep 9, 8:13 PM CDT | Severe Thunderstorm Warning | MPX | Pepin, Pierce | 47 min |
| Sep 9, 8:56 PM CDT | Severe Thunderstorm Warning | MPX | Clark | 34 min |
| Sep 9, 10:00 PM CDT | Severe Thunderstorm Warning | MPX | Clark | 45 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1990Every severe thunderstorm warning in 1990
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.