Alert archive / Wisconsin / Tornado Warnings in 1999
Tornado Warning 5, NWS Milwaukee, WI
NWS Milwaukee, WI issued this tornado warning at Jun 6, 1999, 4:39 PM CDT for Waukesha County, Wisconsin. It was in force for 66 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, 4:39 PM CDT (21:39 UTC)
- Expired
- Jun 6, 1999, 5:45 PM CDT
- In force
- 66 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
County Waukesha County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 6, 4:45 PM CDT | Tornado F1 | Big Bend, WI | |
| Jun 6, 5:05 PM CDT | Thunderstorm Wind | Brookfield, 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
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.7 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
- 1488 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 803 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 206 m²/s²
- 0-3 km storm-relative helicity
- 240 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.9
The text
As transmitted, in the capitals the NWS used until 2016.
543 WFUS1 KMKE 062140 RRA TORMKE WIC133-062245- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 439 PM CDT SUN JUN 6 1999 THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A * TORNADO WARNING FOR... WAUKESHA COUNTY IN SOUTH CENTRAL WISCONSIN * UNTIL 545 PM CDT * AT 439 PM CDT A TRAINED WEATHER SPOTTER REPORTED A TORNADO NEAR NORTH PRAIRIE MOVING NORTHEAST AT 20 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... WALES AT 450 PM CDT. DELAFIELD AT 500 PM CDT. A TORNADO IS ON THE GROUND IF YOU ARE IN THE PATH OF THIS TORNADO... SEEK SHELTER IMMEDIATELY IF NO UNDERGROUND SHELTER IS AVAILABLE... MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. 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, 5 hours 4 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.
Local storm report, Jun 6, 4:19 PM CDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
419 PM CDT SUN JUN 06 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0225 PM MENDOTA WI 1 INCH HAIL
06/06/99 DANE
0345 PM MONROE MUNI ARPT WI 70 MPH TSTM GUST
06/06/99 GREEN
0348 PM HANOVER WI WIND DAMAGE
06/06/99 ROCK
0356 PM EVANSVILLE WI 60 MPH TSTM GUST
06/06/99 ROCKLocal storm report, Jun 6, 4:19 PM CDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
419 PM CDT SUN JUN 06 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0225 PM MENDOTA WI 1 INCH HAIL
06/06/99 DANE
0345 PM MONROE MUNI ARPT WI 70 MPH TSTM GUST
06/06/99 GREEN
0348 PM HANOVER WI WIND DAMAGE
06/06/99 ROCK
0356 PM EVANSVILLE WI 60 MPH TSTM GUST
06/06/99 ROCKThe 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, 4:12 PM CDT | Tornado Warning | MKX | Walworth | 63 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, 4:42 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.