Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 69, NWS Milwaukee, WI
NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 18, 1997, 3:07 PM CDT for Racine County, Walworth County, Wisconsin. It was in force for 63 min. 1 report 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, 3:07 PM CDT (20:07 UTC)
- Expired
- Jul 18, 1997, 4:10 PM CDT
- In force
- 63 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 20:10 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, 3:15 PM CDT | Thunderstorm Wind | Waterford, 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 |
|---|---|---|---|
| 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, 8.1 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
- 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
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMKE 182008 RRA SVRMKE WIC101-127-182110- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 307 PM CDT FRI JUL 18 1997 * SEVERE THUNDERSTORM WARNING FOR WESTERN RACINE COUNTY - SOUTHEASTERN WISCONSIN EASTERN WALWORTH COUNTY - SOUTHEASTERN WISCONSIN * UNTIL 410 PM CDT * SOME LOCATIONS AFFECTED WATERFORD BURLINGTON EAST TROY * AT 310 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF RAPIDLY DEVELOPING SEVERE THUNDERSTORMS 30 MILES SOUTHWEST OF MILWAUKEE...NEAR WATERFORD. THE LINE OF STORMS WERE MOVING EAST TO SOUTHEAST AT 20 MPH. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. TH/WB
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, 4 hours 6 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
Special weather statement, Jul 18, 2:38 PM CDT, 29 minutes before
WIZ056-062-067-068-192000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 238 PM CDT FRI JUL 18 1997 ...SEVERE THUNDERSTORM WATCH NUMBER 625 CANCELLED FOR SAUK...IOWA... LAFAYETTE...AND ROCK COUNTIES OF SOUTH CENTRAL WISCONSIN... THE SEVERE THUNDERSTORM WATCH FOR SAUK...IOWA...LAFAYETTE AND ROCK COUNTIES HAS BEEN CANCELLED. THE THREAT OF SEVERE THUNDERSTORMS HAVE DIMINISHED. TZ
Special weather statement, Jul 18, 2:39 PM CDT, 28 minutes before
WIZ056-062-067-068-192000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 238 PM CDT FRI JUL 18 1997 ...SEVERE THUNDERSTORM WATCH NUMBER 625 CANCELLED FOR SAUK...IOWA... LAF>AYETTE...AND ROCK COUNTIES OF SOUTH CENTRAL WISCONSIN... THE SEVERE THUNDERSTORM WATCH FOR SAUK...IOWA...LAFAYETTE AND ROCK COUNTIES HAS BEEN CANCELLED. THE THREAT OF SEVERE THUNDERSTORMS HAVE DIMINISHED. TZ
Special weather statement, Jul 18, 3:00 PM CDT, 7 minutes before
WIZ046-047-057-063-192015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 300 PM CDT FRI JUL 18 1997 ...SEVERE THUNDERSTORM WATCH NUMBER 625 CANCELLED FOR MARQUETTE... GREEN LAKE...COLUMBIA...AND DANE COUNTIES OF SOUTH CENTRAL WISCONSIN... THE SEVERE THUNDERSTORM WATCH FOR MARQUETTE...GREEN LAKE...COLUMBIA AND DANE COUNTIES HAS BEEN CANCELLED. THE THREAT OF SEVERE THUNDERSTORMS HAS DIMINISHED. TZ
Special weather statement, Jul 18, 3:02 PM CDT, 5 minutes before
WIZ046-047-057-063-192015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 300 PM CDT FRI JUL 18 1997 ...SEVERE THUNDERSTORM WATCH NUMBER 625 CANCELLED FOR MARQUETTE... GREEN LAKE...COLUMBIA...AND DANE COUNTIES OF SOUTH CENTRAL WISCONSIN... THE SEVERE THUNDERSTORM WATCH FOR MARQUETTE...GREEN LAKE...COLUMBIA AND DANE COUNTIES HAS BEEN CANCELLED. THE THREAT OF SEVERE THUNDERSTORMS HAS DIMINISHED. 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, 2:37 PM CDT | Severe Thunderstorm Warning | MKX | Kenosha, Walworth | 63 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, 3:27 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.