Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 39, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Sep 15, 1990, 7:57 PM CDT for Manitowoc County, Wisconsin. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Sep 15, 1990, 7:57 PM CDT (00:57 UTC)
- Expired
- Sep 15, 1990, 8:30 PM CDT
- In force
- 33 min
- Issued by
- NWS Green Bay, WI
- Area
- Whole counties
County Manitowoc 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
Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.0 hours before the alert went out and 54 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
- 706 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 902 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KGRB 160057
SVRGRB
WIC071-160130-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM AND SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
757 PM CDT SAT SEP 15 1990
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM
AND SPECIAL MARINE WARNING EFFECTIVE UNTIL 830 PM CDT FOR
PEOPLE IN THE FOLLOWING COUNTY
IN THE EAST CENTRAL PART OF WISCONSIN
NORTHERN MANITOWOC
...THIS WARNING ALSO INCLUDES THE ADJACENT COASTAL WATERS FOR THE
COUNTY JUST MENTIONED
AT 755 PM CDT RADAR INDICATED A SEVERE THUNDERSTORM OVER NORTHERN
MANITOWOC COUNTY ABOUT 5 MILES NORTHWEST OF THE CITY OF MANITOWOC.
THIS STORM IS MOVING TO THE SOUTHEAST AT 30 MILES AN HOUR AND WILL
BE OVER THE LAKE SHORE BETWEEN TWO RIVERS AND MANITOWOC AT 815 PM.
BOATERS ON LAKE MICHIGAN NEAR MANITOWOC SHOULD HEAD FOR PORT AT
ONCE.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND NEAR WINDOWS. DO NOT USE T\ELEPHONES
OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. MOTORISTS
SHOULD AVOID LOW WATER CROSSINGS.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, Sep 15, 6:07 PM CDT, 1 hour 50 minutes before
WIZ-005-008-009-012-013-141400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 6 PM CDT SAT SEP 15 1990 AT 545 PM CDT RADAR INDICATED A STRONG THUNDERSTORM JUST TO THE NORTHWEST OF SHAWANO IN SHAWANO COUNTY. THIS THUNDERSTORM IS PRODUCING HEAVY RAIN. AND COULD PRODUCE STRONG GUSTY WIND..HAIL AND DAMAGING LIGHTNING. THIS THUNDERSTORM IS EXSPECTED TO BE IN THE CITY OF SHAWANO BY 615 PM CDT. THIS THUNDERSTORM IS MOVING TO THE SOUTHEAST AT 35 MPH. NO SEVERE WEATHER HAS BEEN REPORTED SO FAR. RCM
Special weather statement, Sep 15, 6:40 PM CDT, 1 hour 17 minutes before
WIZ-008-160030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 640 PM CDT SAT SEP 15 1990 AT 635 PM CDT WEATHER RADAR INDICATED A STRONG THUNDERSTORM BETWEEN PULASKI AND GREEN BAY IN EXTREME NORTHWEST BROWN COUNTY. THIS STORM WILL LIKELY CONTAIN HEAVY SHOWERS...GUSTY WINDS...DANGEROUS LIGHTNING... AND POSSIBLY SMALL HAIL. MOVEMENT IS TO THE SOUTHEAST AT AROUND 35 MILES AN HOUR AND WILL BE IN THE GREEN BAY AREA BY 700 PM CDT. BOATERS ON THE SOUTH END OF THE BAY OF GREEN BAY SHOULD BE ALERT FOR THUNDERSTORMS AND HEAD FOR PORT AT ONCE IF THESE THUNDERSTORMS APPROACH. NO SEVERE WEATHER HAS BEEN REPORTED AS OF 640 PM. DC
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.