Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 24, NWS Milwaukee, WI

June 24, 1993Waukesha County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 24, 1993, 8:40 PM CDT for Waukesha County, Wisconsin. It was in force for 50 min.

The area

The counties it named.

The facts

Issued: Jun 24, 1993, 8:40 PM CDT (01:40 UTC)
Expired: Jun 24, 1993, 9:30 PM CDT
In force: 50 min
Issued by: NWS Milwaukee, WI
Area: Whole counties

County Waukesha County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.7 hours before the alert went out and 163 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 836 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1025 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 5.1

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, Jun 24, 7:15 PM CDT, 1 hour 25 minutes before

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Special weather statement, Jun 24, 7:24 PM CDT, 1 hour 16 minutes before

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Special weather statement, Jun 24, 7:34 PM CDT, 1 hour 6 minutes before

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Special weather statement, Jun 24, 7:35 PM CDT, 1 hour 5 minutes before

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Special weather statement, Jun 24, 8:15 PM CDT, 25 minutes before

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Special weather statement, Jun 24, 8:15 PM CDT, 25 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 8:21 PM CDT	Severe Thunderstorm Warning	MKX	Walworth	34 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1993 Every severe thunderstorm warning in 1993

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.