Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 67, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 18, 1997, 2:37 PM CDT for Kenosha County, 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
- Jul 18, 1997, 2:37 PM CDT (19:37 UTC)
- Expired
- Jul 18, 1997, 3:40 PM CDT
- In force
- 63 min
- Issued by
- NWS Milwaukee, WI
- Area
- Whole counties
Counties Kenosha County, WI, Walworth County, WI
The radar
The Milwaukee radar (KMKX), 48 km from the middle of the area, began a volume at 19:41 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 |
|---|---|---|---|
| Jul 18, 2:40 PM CDT | Thunderstorm Wind | Pell Lake, WI | |
| Jul 18, 2:47 PM CDT | Tornado F0 | Sharon, WI | A brief tornado touchdown between Highway B and County Line road caused minor damage to a corn field , destroying a 20 by 40 foot swath of produce. |
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 |
|---|---|---|---|
| Jul 18, 10:30 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.6 hours before the alert went out and 207 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1710 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Jul 18, 11:01 AM CDT, 3 hours 36 minutes before
WIZ046-047-051-052-056>060-062>072-190315- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1100AM CDT FRI JUL 18 1997 ...RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON INTO EARLY TONIGHT... ...FOR SOUTH CENTRAL AND SOUTHEAST WISCONSIN... THREAT... DAMAGING WINDS...LARGE HAIL AND LOCALLY HEAVY RAIN. DISCUSSION... A WEST TO EAST STATIONARY FRONT ACROSS SOUTHERN WISCONSIN WILL ACT AS A FOCUS FOR SEVERE THUNDERSTORMS THIS AFTERNOON INTO EARLY TONIGHT. .SPOTTER ACTIVATION... DUE TO SEVERE THUNDERSTORM WATCH NUMBER 625 IN EFFECT UNTIL 400 PM FOR MUCH OF SOUTHERN WISCONSIN...STORM SPOTTER GROUPS NEED TO BE ACTIVATED. TZ
The office that day
Everything else NWS Milwaukee, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 1:41 PM CDT | Severe Thunderstorm Warning | MKX | Dane | 59 min |
| Jul 18, 2:43 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Walworth | 57 min |
| Jul 18, 2:49 PM CDT | Tornado Warning | MKX | Walworth | 46 min |
| Jul 18, 3:07 PM CDT | Severe Thunderstorm Warning | MKX | Racine, Walworth | 63 min |
| Jul 18, 3:27 PM CDT | Tornado Warning | MKX | Racine | 38 min |
| Jul 18, 3:33 PM CDT | Tornado Warning | MKX | Kenosha | 47 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.