Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 15, NWS Milwaukee, WI

May 27, 1987Dodge County, Fond du Lac County, Jefferson County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at May 27, 1987, 3:25 PM CDT for Dodge County, Fond du Lac County, Jefferson County, Wisconsin. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
May 27, 1987, 3:25 PM CDT (20:25 UTC)
Expired
May 27, 1987, 4:30 PM CDT
In force
65 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

Counties Dodge County, WI, Fond du Lac County, WI, Jefferson 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, 8.4 hours before the alert went out and 128 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

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

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 9:50 PM CDTSevere Thunderstorm WarningMKXJefferson10 min
May 27, 4:34 PM CDTSevere Thunderstorm WarningMKXFond du Lac41 min
May 27, 4:37 PM CDTSevere Thunderstorm WarningMKXForest, Langlade53 min
May 27, 5:28 PM CDTTornado WarningMKXWalworth32 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.