Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 36, NWS Green Bay, WI

June 29, 1991Florence County, Forest County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jun 29, 1991, 2:18 AM CDT for Florence County, Forest County, Wisconsin. It was in force for 42 min.

The area

The counties it named.

The facts

Issued
Jun 29, 1991, 2:18 AM CDT (07:18 UTC)
Expired
Jun 29, 1991, 3:00 AM CDT
In force
42 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Florence County, WI, Forest County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 00:00Z, 7.3 hours before the alert went out and 405 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, Minneapolis, MN at 00:00Z on 1991-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3476 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, Minneapolis, MN at 00:00Z on 1991-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 385 square meters per square second.19395878Sfc1 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
3476 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
941 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
385 m²/s²
0-3 km storm-relative helicity
583 m²/s²
Significant tornado parameter
11.6
Supercell composite
41.2

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The text

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

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning in 1991

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.