Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 33, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Sep 6, 1990, 4:57 PM CDT for Fond du Lac County, Sheboygan County, Wisconsin. It was in force for 63 min.
The area
The counties it named.
The facts
- Issued
- Sep 6, 1990, 4:57 PM CDT (21:57 UTC)
- Expired
- Sep 6, 1990, 6:00 PM CDT
- In force
- 63 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Fond du Lac County, WI, Sheboygan 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
Detroit, MI (KFNT), launched 12:00Z, 10.0 hours before the alert went out and 399 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
- 1594 J/kg
- Mixed-layer CIN
- -56 J/kg
- Mixed-layer LCL
- 630 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.9
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMKE 062201
SVRMKE
WIC039-117-062300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
457 PM CDT THU SEP 6 1990
THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN EAST CENTRAL WISCONSIN
...FOND DU LAC...SHEBOYGAN
AND THE ADJACENT COASTAL WATERS OF LAKE MICHIGAN.
AT 455 PM WEATHER RADAR INDICATED A SEVERE THUNDERSTORM NEAR AND
JUST NORTH OF FOND DU LAC.
THIS THUNDERSTORM WILL LIKELY PRODUCE LARGE HAIL AND DAMAGING
WINDS. THE STORM WAS MOVING EAST AT 35 MPH AND WILL ENTER
SHEBOYGAN COUNTY AFTER 515 PM.
MEANWHILE OTHER STORMS WERE DEVELOPING JUST SOUTH OF SHEBOYGAN.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
HENTZWhat 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 6, 3:54 PM CDT, 1 hour 3 minutes before
WIZ005-007>009-011>020-070000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 350 PM CDT THU SEP 6 1990 ...TORNADO WATCH IN EFFECT FOR MUCH OF CENTRAL AND SOUTHERN WISCONSIN UNTIL 9PM... AT 350 PM NO SEVERE THUNDERSTORMS HAVE YET DEVELOPED. HOWEVER THE ATMOSPHERE REMAINS PRIME FOR RAPID INTENSIFICATION OF ANY THUNDERSTORMS THAT DO DEVELOP. PERSONS IN SOUTHERN AND CENTRAL WISCONSIN SHOULD REMAIN ALERT FOR THE DEVELOiPMENT OF SEVERE THUNDERSTORMS AND EVEN TORNADOES LATE THIS AFTERNOON AND EVENING. A TORNADO WATCH REMIANS IN EFFECT UNTIL 9PM THIS EVENING FOR MUCH OF SOUTHERN AND CENTRAL WISCONSIN. HENTZ
Special weather statement, Sep 6, 4:07 PM CDT, 50 minutes before
WIZ013-017-070000- SPECIAL WEATHER AND MARINE STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 405 PM CDT THU SEP 6 1990 ...THUNDERSTORM DEVELOPING RAPIDLY NORTH OF SHEBOYGAN... AT 400 PM WEATHER RADAR INDICATED A RAPIDLY DEVELOPING THUNDERSTORM OVER MANITOWOC COUNTY THAT WAS MOVING SOUTHEAST AT 35 MPH. THIS STORM SHOULD AFFECT FAR NORTHERN SHEBOYGAN COUNTY NEAR OR NORTH OF SHEBOYGAN BEFORE MOVING OUT OVER LAKE MICHIGAN. AREA BOATERS NEAR SHEBOYGAN SHOULD SEEK SAFE HARBOR. PERSONS IN SOUTHERN AND CENTRAL WISCONSIN SHOULD REMAIN ALERT FOR THE DEVELOPMENT OF SEVERE THUNDERSTORMS AND EVEN TORNADOES LATE THIS AFTERNOON AND EVENING. A TORNADO WATCH REMIANS IN EFFECT UNTIL 9PM THI~S EVENING FOR MUCH OF SOUTHERN AND CENTRAL WISCONSIN. HENTZ
Special weather statement, Sep 6, 4:49 PM CDT, 8 minutes before
WIZ012-062300- SPECIAL WEATHER AND MARINE STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 448 PM CDT THU SEP 6 1990 ...THUNDERSTORM DEVELOPING RAPIDLY OVER NORTHERN FOND DU LAC COUNTY... AT 445 PM WEATHER RADAR INDICATED A RAPIDLY DEVELOPING THUNDERSTORM OVER NORTHERN FOND DU LAC COUNTY NEAR VAN DYNE...ABOUT 5 MILES NORTH OF THE CITY OF FOND DU LAC. THE STORM WAS MOVING EAST AROUND 30 MPH AND WILL SOUTHERN PORTIONS OF LAKE WINNEBAGO AND THE CITIES OF PIPE AND ST. PETER AROUND 5PM. THIS RAPIDLY DEVELOPING STORM MAY PRODUCE GUSTY WINDS...SMALL HAIL AND DANGEROUS LIGHTNING. AREA BOATERS ON SOUTHERN LAKE WINNEBAGO SHOULD SEEK SAFE HARBOR. ZAJDEL
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 5:12 PM CDT | Tornado Warning | MKX | Fond du Lac | 33 min |
| Sep 6, 5:56 PM CDT | Severe Thunderstorm Warning | MKX | Sheboygan | 34 min |
| Sep 6, 6:58 PM CDT | Severe Thunderstorm Warning | MKX | Wood | 38 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; the sounding from the Mesonet's radiosonde archive.