Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 6, NWS Green Bay, WI

April 25, 1986Adams County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Apr 25, 1986, 8:35 PM CST for Adams County, Wisconsin. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Apr 25, 1986, 8:35 PM CST (02:35 UTC)
Expired
Apr 25, 1986, 9:30 PM CST
In force
55 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Adams 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, 2.6 hours before the alert went out and 145 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 00:00Z on 1986-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 1986-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 242 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1486 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
242 m²/s²
0-3 km storm-relative helicity
432 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.3

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Apr 25, 8:23 PM CST, 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
815 PM CST FRI APR 25 1986

...STRONG THUNDERSTORMS HEADING TOWARD WAUPACA AND WINNEBAGO COUNTIES...

AT 810 PM CST STRONG THUNDERSTORMS WERE LOCATED IN WAUSHARA AND MARQUETTE
COUNTIES. NO SEVERE WEATHER HAS BEEN REPORT AS OF 810 PM BUT PEA SIZE HAIL
HAS BEEN REPORTED.

BESIDES HAIL, STRONG GUSTY WINDS HEAVY DOWNPOURS AND DANGEROUS LIGHTNING
CAN BE EXPECTED WITH THESE STORMS.

THESE STORMS ARE MOVING NORTHEAST AT 40 MPH AND SHOULD BE AFFECTING
WAUPACA AND WINNEBAGO COUNTIES BY 900 PM CST. PERSONS IN THESE AREAS AS
WELL AS ALL OF NORTHEAST WISCONSIN SHOULD LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

TH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 25, 7:31 PM CSTSevere Thunderstorm WarningGRBColumbia, Dane, Sauk59 min
Apr 25, 7:37 PM CSTSevere Thunderstorm WarningGRBDane, Green68 min
Apr 25, 7:58 PM CSTSevere Thunderstorm WarningGRBWaushara62 min
Apr 25, 8:21 PM CSTSevere Thunderstorm WarningGRBGreen42 min
Apr 25, 8:21 PM CSTSevere Thunderstorm WarningGRBDane, Rock69 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1986Every severe thunderstorm warning in 1986

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.