Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 80, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 25, 1998, 7:49 PM CDT for Jefferson County, Walworth County, Wisconsin. It was in force for 61 min. 3 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 25, 1998, 7:49 PM CDT (00:49 UTC)
- Expired
- Jun 25, 1998, 8:50 PM CDT
- In force
- 61 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Jefferson County, WI, Walworth County, WI
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 25, 8:00 PM CDT | Thunderstorm Wind | Palmyra, WI | |
| Jun 25, 8:44 PM CDT | Thunderstorm Wind 60 | Elkhorn, WI | |
| Jun 25, 8:50 PM CDT | Thunderstorm Wind | Lake Geneva, 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 25, 7:30 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.8 hours before the alert went out and 187 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
- 2137 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1195 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 249 m²/s²
- Significant tornado parameter
- 2.3
- Supercell composite
- 12.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 260050 RRA SVRMKE WIC055-127-260150- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 749 PM CDT THU JUN 25 1998 THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN WI HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN JEFFERSON COUNTY IN SOUTHEASTERN WISCONSIN NORTHWESTERN WALWORTH COUNTY IN SOUTHEASTERN WISCONSIN * UNTIL 850 PM CDT * AT 848 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR WHITEWATER IN NORTHWEST WALWORTH COUNTY... MOVING NORTHEAST AT AROUND 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... PALMYRA EAST TROY LITTLE PRAIRIE LAUDERDALE IF YOU ARE IN THEbSE AREAS... SEEK SAFETY IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. SEVERE THUNDERSTORMS WILL OCCASIONALLY PRODUCE TORNADOES. MK
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 7:11 PM CDT | Tornado Warning | MKX | Rock | 29 min |
| Jun 25, 7:41 PM CDT | Severe Thunderstorm Warning | MKX | Rock | 59 min |
| Jun 25, 7:56 PM CDT | Severe Thunderstorm Warning | MKX | Green | 64 min |
| Jun 25, 8:14 PM CDT | Flash Flood Warning | MKX | Rock | 3 hr |
| Jun 25, 8:25 PM CDT | Tornado Warning | MKX | Green | 35 min |
| Jun 25, 8:42 PM CDT | Severe Thunderstorm Warning | MKX | Walworth | 63 min |
| Jun 25, 8:49 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Racine | 61 min |
| Jun 25, 8:57 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha | 63 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1998Every severe thunderstorm warning in 1998
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.