Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 71, NWS Green Bay, WI

August 19, 1994Iowa County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 19, 1994, 1:56 PM CDT for Iowa County, Wisconsin. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Aug 19, 1994, 1:56 PM CDT (18:56 UTC)
Expired
Aug 19, 1994, 3:00 PM CDT
In force
64 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 12:00Z, 6.9 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 12:00Z on 1994-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 15 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 1994-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939Sfc1 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
15 J/kg
Mixed-layer CIN
-245 J/kg
Mixed-layer LCL
690 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KMSN 191856
SVRMSN
WIC049-192000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MADISON WI
156 PM CDT FRI AUG 19 1994
 
THE NATIONAL WEATHER SERVICE IN MADISON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  300 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL WISCONSIN
 
   ...IOWA COUNTY
 
AT 1252PM CDT RADAR INDICATED A SEVERE THUNDERSTORM JUST SOUTH OF
MUSCODA...OR 62 MILES WEST OF MADISON...MOVING TOWARDS THE
EAST..SOUTHEAST AT 35 MPH.
 
SOME CITIES IN THE PATH OF THE STORM ARE...HIGHLAND...GOVERNOR DODGE
STATE PARK...DODGEVILLE...AND BARNEVELD.
 
THIS IS A DANGEROUS STORM IF IT APPROACHES YOU...SEEK IMMEDIATE SHELTER.
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
STIMACH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 8:37 PM CDTSevere Thunderstorm WarningGRBRock68 min
Aug 19, 10:08 AM CDTSevere Thunderstorm WarningGRBIowa, Richland, Sauk52 min
Aug 19, 12:13 PM CDTSevere Thunderstorm WarningGRBDane25 min
Aug 19, 2:41 PM CDTSevere Thunderstorm WarningGRBDane64 min
Aug 19, 2:57 PM CDTSevere Thunderstorm WarningGRBGreen63 min
Aug 19, 3:03 PM CDTSevere Thunderstorm WarningGRBIowa42 min
Aug 19, 3:38 PM CDTSevere Thunderstorm WarningGRBRock57 min
Aug 19, 3:44 PM CDTSevere Thunderstorm WarningGRBGreen46 min
Aug 19, 4:25 PM CDTSevere Thunderstorm WarningGRBGreen, Rock74 min
Aug 19, 4:25 PM CDTSevere Thunderstorm WarningGRBShawano51 min
Aug 19, 4:25 PM CDTSevere Thunderstorm WarningGRBWaupaca65 min
Aug 19, 5:25 PM CDTSevere Thunderstorm WarningGRBBrown, Outagamie, Waupaca50 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1994Every severe thunderstorm warning in 1994

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.