Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 19, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 29, 1990, 12:33 AM CDT for Green County, Rock County, Wisconsin. It was in force for 57 min. 6 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
- Jun 29, 1990, 12:33 AM CDT (05:33 UTC)
- Expired
- Jun 29, 1990, 1:30 AM CDT
- In force
- 57 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
Counties Green County, WI, Rock 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 29, 12:35 AM CDT | Thunderstorm Wind 0 | Rock, WI | |
| Jun 29, 12:35 AM CDT | Thunderstorm Wind 0 | Rock, WI | |
| Jun 29, 12:37 AM CDT | Thunderstorm Wind 0 | Green, WI | |
| Jun 29, 12:45 AM CDT | Thunderstorm Wind 0 | Rock, WI | |
| Jun 29, 12:50 AM CDT | Thunderstorm Wind 74 | Rock, WI | |
| Jun 29, 1:10 AM CDT | Thunderstorm Wind 0 | Rock, 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, 5.6 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
- 840 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 630 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 245 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMSN 290533
SVRMSN
WIC045-105-290630-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MADISON WI
1233 AM CDT FRI JUN 29 1990
THE NATIONAL WEATHER SERVICE IN MADISON WIHAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 130 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH CENTRAL WISCONSIN
...GREEN...ROCK
AT 1230 CDT NATIONAL WEATHER SERVICE RADAR DETECTED A LINE OF
THUNDERSTORMS EXTENDING FROM SOUTH OF MADISON TO MINERAL POINT.
THESE STORMS WERE MOVING SOUTHEAST AT 35 MPH. SOME CITIES IN THE
PATH OF THESE STORMS ARE DARLINGTON..MONTICELLO..NEW GLARUS..
AND JANESVILLE.
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.
X
MEMThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 5:13 AM CDT | Flash Flood Warning | GRB | Green, Iowa | 2 hr |
| Jun 29, 5:28 AM CDT | Flash Flood Warning | GRB | Richland | 62 min |
| Jun 29, 6:23 AM CDT | Flash Flood Warning | GRB | Richland | 67 min |
| Jun 29, 7:29 AM CDT | Flash Flood Warning | GRB | Green | 116 min |
| Jun 29, 7:29 AM CDT | Flash Flood Warning | GRB | Richland | 116 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.