Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 42, NWS Green Bay, WI

July 9, 1993Iowa County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 9, 1993, 12:25 AM CDT for Iowa County, Wisconsin. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Jul 9, 1993, 12:25 AM CDT (05:25 UTC)
Expired
Jul 9, 1993, 1:30 AM CDT
In force
65 min
Issued by
NWS Green Bay, WI
Area
Whole counties

County Iowa County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.4 hours before the alert went out and 232 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 1993-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 45 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 00:00Z on 1993-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
45 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
206 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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 Green Bay, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 9, 1:08 AM CDTSevere Thunderstorm WarningGRBDane52 min
Jul 9, 1:21 AM CDTFlash Flood WarningGRBGreen, Iowa6 hr
Jul 9, 1:23 AM CDTFlash Flood WarningGRBDane6 hr
Jul 9, 1:41 AM CDTFlash Flood WarningGRBColumbia6 hr
Jul 9, 2:07 AM CDTFlash Flood WarningGRBGreen Lake, Marquette6 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1993Every 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.