Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 91, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Aug 3, 1997, 10:02 PM CDT for Racine County, Walworth County, Wisconsin. It was in force for 58 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
- Aug 3, 1997, 10:02 PM CDT (03:02 UTC)
- Expired
- Aug 3, 1997, 11:00 PM CDT
- In force
- 58 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Racine County, WI, Walworth County, WI
The radar
The Milwaukee radar (KMKX), 43 km from the middle of the area, began a volume at 03:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 10:10 PM CDT | Hail 1 | East Troy, WI | |
| Aug 3, 10:15 PM CDT | Thunderstorm Wind | Union Church, 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 nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 3.0 hours before the alert went out and 198 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
- 657 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 040302 RRA SVRMKE WIC101-127-040400- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1002 PM CDT SUN AUG 3 1997 * SEVERE THUNDERSTORM WARNING FOR WESTERN RACINE COUNTY - SOUTHEASTERN WISCONSIN EASTERN WALWORTH COUNTY - SOUTHEASTERN WISCONSIN * UNTIL 1100 PM CDT * SOME LOCATIONS AFFECTED EAST TROY LAKE GENEVA WATERFORD BURLINGTON * AT 1000 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR EAST TROY...30 MILES SOUTHWEST OF MILWAUKEE. THE STORM WAS MOVING SOUTHEAST AT 30 MPH. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINpDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MK/NJ/TH
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:01 PM CDT | Severe Thunderstorm Warning | MKX | Green, Rock | 59 min |
| Aug 3, 7:23 PM CDT | Severe Thunderstorm Warning | MKX | Fond du Lac, Green Lake | 57 min |
| Aug 3, 8:06 PM CDT | Severe Thunderstorm Warning | MKX | Dodge | 54 min |
| Aug 3, 9:15 PM CDT | Severe Thunderstorm Warning | MKX | Green Lake | 60 min |
| Aug 3, 10:00 PM CDT | Severe Thunderstorm Warning | MKX | Dodge | 60 min |
| Aug 4, 1:13 PM CDT | Severe Thunderstorm Warning | MKX | Columbia, Dane | 47 min |
| Aug 4, 1:41 PM CDT | Severe Thunderstorm Warning | MKX | Dane | 49 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 1997Every severe thunderstorm warning in 1997
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; radar from the NEXRAD Level II archive.