Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 8, NWS Green Bay, WI

May 27, 1987Columbia County, Green Lake County, Marquette County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at May 27, 1987, 2:16 PM CDT for Columbia County, Green Lake County, Marquette County, Wisconsin. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
May 27, 1987, 2:16 PM CDT (19:16 UTC)
Expired
May 27, 1987, 3:15 PM CDT
In force
59 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Columbia County, WI, Green Lake County, WI, Marquette 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 12:00Z, 7.3 hours before the alert went out and 127 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.

Skew-T log-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 1987-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 94 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 1987-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
94 J/kg
Mixed-layer CIN
-163 J/kg
Mixed-layer LCL
1262 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSN 271916
SVRMSN
WIC021-025-045-047-077-105-272015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MADISON WI
216 PM CDT WED MAY 27 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 315 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

SOUTH CENTRAL WISCONSIN...COLUMBIA...DANE...GREEN...GREEN-LAKE...
 MARQUETTE AND ROCK

AT 213 PM CDT RADAR INDICATED A LINE OF THUNDERSTORMS FROM WISCONSIN
DELLS TO 5 MILES WEST OF MARTINTOWN OR 50 MILES SOUTHWEST OF
MADISON. MOVEMENT WAS EAST AT 20 MPH.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS..LARGE HAIL AND DANGEROUS
LIGHTNING. IF THREATENING WEATHER APPROACHES TAKE SHELTER.

REMEMBER..SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
A TORNADO WITH LITTLE OR NO ADVANCE WARNING..SO BE ON THE LOOKOUT.

PRZEKURAT

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 27, 1:02 PM CDTSevere Thunderstorm WarningGRBIowa58 min
May 27, 2:01 PM CDTSevere Thunderstorm WarningGRBSauk44 min
May 27, 2:16 PM CDTSevere Thunderstorm WarningGRBDane, Green, Rock59 min
May 27, 3:23 PM CDTSevere Thunderstorm WarningGRBColumbia, Dane, Green, Rock52 min
May 27, 3:23 PM CDTSevere Thunderstorm WarningGRBGreen Lake52 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1987Every severe thunderstorm warning in 1987

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.