Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 69, NWS Green Bay, WI

August 19, 1994Iowa County, Richland County, Sauk County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 19, 1994, 10:08 AM CDT for Iowa County, Richland County, Sauk County, Wisconsin. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Aug 19, 1994, 10:08 AM CDT (15:08 UTC)
Expired
Aug 19, 1994, 11:00 AM CDT
In force
52 min
Issued by
NWS Green Bay, WI
Area
Whole counties

Counties Iowa County, WI, Richland County, WI, Sauk County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 3.1 hours before the alert went out and 214 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 191509
SVRMSN
WIC049-103-111-191615-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MADISON WI
1008 AM CDT FRI AUG 19 1994
 
THE NATIONAL WEATHER SERVICE IN MADISON HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTH CENTRAL WISCONSIN
 
   ...IOWA COUNTY...RICHLAND COUNTY...SAUK COUNTY
 
AT 1000AM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE TOWN OF
VIOLA OF NORTHWEST RICHLAND COUNTY...OR 30 MILES SOUTHEAST OF LA CROSSE
MOVING TOWARDS THE SOUTHEAST AT 30 MPH.
 
SOME CITIES IN THE PATH OF THE STORM ARE...VIOLA...RICHLAND CENTER...LON
RAND SPRING GREEN.
 
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING.  DO NOT STAND BY WINDOWS.  DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED.  MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
 
 
MARIEN

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, 12:13 PM CDTSevere Thunderstorm WarningGRBDane25 min
Aug 19, 1:56 PM CDTSevere Thunderstorm WarningGRBIowa64 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.