Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 4, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Apr 18, 1994, 7:22 PM CDT for Waukesha County, Wisconsin. It was in force for 48 min.
The area
The counties it named.
The facts
- Issued
- Apr 18, 1994, 7:22 PM CDT (00:22 UTC)
- Expired
- Apr 18, 1994, 8:10 PM CDT
- In force
- 48 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, 0.4 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.
- Mixed-layer CAPE
- 48 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 2802 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 190022 SVRMKE WIC133-190130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 722 PM CDT MON APR 18 1994 THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 830 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST WISCONSIN ...WAUKESHA COUNTY AT 720 PM CDT DOPPLER WEATHER RADAR SHOWED A LINE OF SEVERE THUNDERSTORMS MOVING THROUGH JEFFERSON COUNTY...RACING EAST TOWARD WAUKESHA COUNTY. THE LINE OF STORMS EXTENDS FROM 5 MILES NORTHEAST OF THE CITY OF JEFFERSON THROUGH WHITEWATER TO JANESVILLE. THESE STORMS ARE MOVING EAST AT 50 MPH AND WILL MOVE INTO WAUKESHA COUNTY...ESPECIALLY THE SOUTHERN PORTION DURING THE NEXT HOUR. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. ~ DAVIS
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, Apr 18, 5:53 PM CDT, 1 hour 29 minutes before
WIZ043>047-055>057-062-063-068-069-182355- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MADISON WI 552 PM CDT MON APR 18 1994 ...STRONG THUNDERSTORMS IN WESTERN WISCONSIN... A FEW ISOLATED STRONG THUNDERSTORMS HAVE DEVELOPED IN CRAWFORD AND GRANT COUNTIES IN WESTERN WISCONSIN WITHIN THE LAST HOUR. THERE HAVE BEEN UNOFFICIAL REPORTS OF STRONG WINDS AND HEAVY DOWNPOURS WITH THESE STORMS WHICH ARE LOCATED NEAR MT STERLING ...37 MILES SOUTH-SOUTHEAST OF LA CROSSE...AND MUSCODA IN GRANT COUNTY...50 MILES NORTH-NORTHEAST OF DUBUQUE. THE THUNDERSTORMS WERE MOVING TO THE EAST AT 40 MILES AN HOUR. PERSONS IN RICHLAND AND IOWA COUNTIES SHOULD BE ON THE ALERT FOR THE APPROACH OF THESE STORMLS AND BE PREPARED TO TAKE SHELTER MC MAHON
Special weather statement, Apr 18, 6:05 PM CDT, 1 hour 17 minutes before
WIZ051-052-058>060-064>066-070>072-502-190200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 600 PM CDT MON APR 18 1994 ...SHOWERS AND THUNDERSTORMS APPROACHING SOUTHEAST WISCONSIN... AT 600 PM WEATHER RADAR SHOWED SCATTERED SHOWERS AND THUNDERSTORMS MOVING FROM SOUTHWEST INTO SOUTH CENTRAL WISCONSIN. THE LEADING EDGE OF THE STORMS WAS EAST OF LONE ROCK RACING EAST AT 45 TO 50 MPH. THE SCATTERED STORMS ARE EXPECTED TO MOVE INTO FAR SOUTHERN DODGE... JEFFERSON AND WALWORTH COUNTIES AROUND 7 PM...AND THEN INTO WAUKESHA ...MILWAUKEE...RACINE AND KENOSHA COUNTIES BY 8 PM. THESE STORMS CONTAIN BRIEF VERY HEAVY RAIN AND STRONG GUSTY WINDS. IF YOU SEE THESE STORMS APPROACHING FROM THE WEST TAKE SHELTER. SANDLER
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 7:29 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 61 min |
| Apr 18, 7:29 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee | 61 min |
| Apr 18, 7:42 PM CDT | Severe Thunderstorm Warning | MKX | Walworth | 18 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.