Alert archive / Wisconsin / Tornado Warnings in 1999
Tornado Warning 2, NWS Milwaukee, WI
NWS Milwaukee, WI issued this tornado warning at Jun 6, 1999, 4:12 PM CDT for Walworth County, Wisconsin. It was in force for 63 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 6, 1999, 4:12 PM CDT (21:12 UTC)
- Expired
- Jun 6, 1999, 5:15 PM CDT
- In force
- 63 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
County Walworth County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 6, 4:35 PM CDT | Thunderstorm Wind | East Troy, WI | |
| Jun 6, 4:47 PM CDT | Thunderstorm Wind | Elkhorn, WI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 6, 2:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 9.2 hours before the alert went out and 199 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
- 819 J/kg
- Mixed-layer CIN
- -112 J/kg
- Mixed-layer LCL
- 1154 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
100 WFUS1 KMKE 062114 RRA TORMKE WIC127-062215- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 412 PM CDT SUN JUN 6 1999 THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A * TORNADO WARNING FOR... WALWORTH COUNTY IN SOUTH EASTERN WISCONSIN * UNTIL 515 PM CDT * AT 412 PM CDT A TRAINED WEATHER SPOTTER REPORTED A TORNADO 9 MILES WEST OF DARIEN...OR 8 MILES NORTHEAST OF BELOIT...MOVING NORTHEAST AT 50 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... ELKHORN AT 420 PM CDT. EAST TROY AT 435 PM CDT. POTTER LAKE AT 440 PM CDT. SPOTTERS REPORTED A TORNADO NEAR THE HIGHWAY 14 IN EXTREME EASTERN ROCK COUNTY MOVING NORTHEAST. THIS IS A DANGEROUS STORM SITUATION. DO NOT RUN OUTSIDE TO FIND THE TORNADO...SEEK SHELTER IMMEDIATELY MOVE TO A SHELTER BELOW GROUND IF AVAILABLE. OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS OR CUSHIONS TO COVER YOUR BODY. HENTZ/CROSBIE
What forecasters said that day
The local office's own words before this tornado 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 6, 11:35 AM CDT, 4 hours 37 minutes before
WIZ046-047-051-052-056>060-062>072-062100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1135 AM CDT SUN JUN 6 1999 ...HAZARDOUS WEATHER OUTLOOK... ...FOR SOUTH CENTRAL AND SOUTHEASTERN WISCONSIN... THREAT... A SLIGHT TO MODERATE RISK OF SEVERE THUNDERSTORMS...THIS AFTERNOON INTO TONIGHT. LARGE HAIL UP TO GOLF BALL SIZE...AND DAMAGING WINDS OF 60 TO 80 MPH. DISCUSSION...A VERY WARM AND UNSTABLE AIRMASS IS IN PLACE OVER WISCONSIN THIS AFTERNOON. A COLD FRONT IS APPROACHING THE REGION FROM THE PLAINS. IN ADDITION...A BAND OF STRONG UPPER AIR WINDS...WILL PUSH INTO THE STATE LATER THIS AFTERNOON AND TONIGHT. THE COMBINATION OF THE VERY UNSTABLE AIRMASS...AND FAVORABLE UPPER WINDS...WILL MEAN ANY THUNDERSTORMS THAT DEVELOP...COULD BE SEVERE. THE THREAT OF SEVERE WEATHER SHOULD CONTINUE INTO TONIGHT. SPOTTER ACTIVATION... STORM SPOTTER GROUPS WILL LIKELY NEED TO BE ACTIVATED LATER THIS AFTERNOON INTO TONIGHT.
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 3:17 PM CDT | Severe Thunderstorm Warning | MKX | Dane, Green, Rock | 58 min |
| Jun 6, 3:19 PM CDT | Severe Thunderstorm Warning | MKX | Columbia | 56 min |
| Jun 6, 3:36 PM CDT | Tornado Warning | MKX | Green, Rock | 54 min |
| Jun 6, 3:51 PM CDT | Severe Thunderstorm Warning | MKX | Dodge | 54 min |
| Jun 6, 3:59 PM CDT | Severe Thunderstorm Warning | MKX | Jefferson | 61 min |
| Jun 6, 4:06 PM CDT | Severe Thunderstorm Warning | MKX | Walworth | 54 min |
| Jun 6, 4:09 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Marquette | 66 min |
| Jun 6, 4:09 PM CDT | Severe Thunderstorm Warning | MKX | Sauk | 66 min |
| Jun 6, 4:16 PM CDT | Tornado Warning | MKX | Dane, Jefferson | 59 min |
| Jun 6, 4:19 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac | 56 min |
| Jun 6, 4:28 PM CDT | Tornado Warning | MKX | Jefferson | 32 min |
| Jun 6, 4:30 PM CDT | Severe Thunderstorm Warning | MKX | Waukesha | 60 min |
| Jun 6, 4:35 PM CDT | Severe Thunderstorm Warning | MKX | Green Lake | 55 min |
| Jun 6, 4:39 PM CDT | Tornado Warning | MKX | Waukesha | 66 min |
| Jun 6, 4:42 PM CDT | Severe Thunderstorm Warning | MKX | Washington | 63 min |
| Jun 6, 4:43 PM CDT | Severe Thunderstorm Warning | MKX | Milwaukee, Racine | 62 min |
| Jun 6, 4:43 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha | 62 min |
| Jun 6, 4:45 PM CDT | Severe Thunderstorm Warning | MKX | Ozaukee, Sheboygan | 75 min |
| Jun 6, 4:51 PM CDT | Severe Thunderstorm Warning | MKX | Dodge | 24 min |
| Jun 6, 5:10 PM CDT | Tornado Warning | MKX | Ozaukee | 35 min |
| Jun 6, 6:51 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 54 min |
Nearby
Tornado Warnings in Wisconsin, 1999Every tornado warning in 1999Tornadoes in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.