Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 31, NWS Green Bay, WI

July 18, 1986Door County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 18, 1986, 4:42 PM CDT for Door County, Wisconsin. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Jul 18, 1986, 4:42 PM CDT (21:42 UTC)
Expired
Jul 18, 1986, 5:45 PM CDT
In force
63 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Door 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, 9.7 hours before the alert went out and 71 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 1986-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2603 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 1986-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 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
2603 J/kg
Mixed-layer CIN
-123 J/kg
Mixed-layer LCL
894 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

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, Jul 18, 4:19 PM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
415 PM CDT FRI JUL 18 1986

WEATHER RADAR CURRENTLY INDICATES A VERY STRONG THUNDERSTORM
BETWEEN PULASKI AND ABRAMS WISCONSIN ON THE SHAWANO AND OCONTO
COUNTY LINE MOVING EAST AT 30 MPH.  THIS STORM SHOULD BE REACHING
NORTHERN BROWN AND SOUTHERN OCONTO COUNTIES WITHIN THE NEXT HOUR
AND COULD PRODUCE STRONG WINDS AND HEAVY RAIN AND POSSIBLE HAIL
AS THEY PASS THROUGH.

KETOLA

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 2:31 PM CDTSevere Thunderstorm WarningGRBDoor59 min
Jul 18, 3:40 PM CDTSevere Thunderstorm WarningGRBDoor65 min
Jul 18, 4:42 PM CDTSevere Thunderstorm WarningGRBMarinette, Oconto63 min
Jul 18, 4:59 PM CDTSevere Thunderstorm WarningGRBBrown41 min
Jul 18, 5:43 PM CDTSevere Thunderstorm WarningGRBBrown, Oconto62 min
Jul 18, 5:43 PM CDTSevere Thunderstorm WarningGRBKewaunee, Manitowoc62 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.