Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 48, NWS Milwaukee, WI

June 24, 1997Walworth County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jun 24, 1997, 5:20 PM CDT for Walworth County, Wisconsin. It was in force for 45 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 24, 1997, 5:20 PM CDT (22:20 UTC)
Expired: Jun 24, 1997, 6:05 PM CDT
In force: 45 min
Issued by: NWS Milwaukee, WI
Area: Whole counties

County Walworth County, WI

What was reported inside it

Time	Report	Where	Remark
Jun 24, 5:55 PM CDT	Thunderstorm Wind	Darien, WI
Jun 24, 6:15 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 24, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 10.3 hours before the alert went out and 199 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1124 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1151 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

005 
WUUS1 KMKE 242221 RRA
SVRMKE
WIC039-127-242310-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
520 PM CDT TUE JUN 24 1997

* SEVERE THUNDERSTORM WARNING FOR
  FOND DU LAC COUNTY - EAST CENTRAL WISCONSIN
  WALWORTH COUNTY - SOUTHEASTERN WISCONSIN

* UNTIL 605 PM CDT
 
* SOME LOCATIONS AFFECTED
  FOND DU LAC
  OAKFIELD
  ELKHORN
  WHITEWATER

* AT 540 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE
  OF SEVERE THUNDERSTORMS 25 MILES WEST OF FOND DU LAC TO 15 MILES
  WEST OF ELKHORN. THE LINE OF STORMS WAS MOVING EAST AT 40 MPH.
  NUMEROUS TREES AND POWER LINES HAVE BEEN KNOCKED DOWN BY THESE
  STORMS.  EXPECT HEAVY RAINFALL.

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.

DAVIS/JH

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, Jun 24, 11:30 AM CDT, 5 hours 50 minutes before

WIZ046-047-051-052-054>072-251200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1115 AM CDT TUE JUN 24 1997

...LOW RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND TONIGHT
FOR SOUTHCENTRAL AND SOUTHEAST WISCONSIN...

THREAT...
DAMAGING WINDS...LOCALLY HEAVY RAINS.

DISCUSSION...
A VERY WARM MOIST AND UNSTABLE AIR MASS REMAINS OVER THE AREA. A COLD
FRONT APPROACHING WESTERN WISCONSIN IS FORECAST TO TRIGGER THUNDERSTORMS
IN THIS AIR MASS THIS AFTERNOON AND TONIGHT. SOME OF THESE STORMS
COULD BECOME SEVERE AFTER 3PM AND WILL BECOME MORE NUMEROUS OVER THE
AREA TONIGHT.

SPOTTER ACTIVATION...
STORM SPOTTER GROUPS MAY NEED TO BE ACTIVATED AFTER 3PM TODAY.
HELAMN

Local storm report, Jun 24, 4:22 PM CDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
422 PM CDT TUE JUN 24 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0358 PM    LAKE DELTON               WI   WIND DAMAGE
06/24/97   SAUK                           NUMEROUS TREES DOWN

0402 PM    OXFORD                    WI   WIND DAMAGE
06/24/97   MARQUETTE                      SEVERAL TREES DOWN

TH

Local storm report, Jun 24, 4:24 PM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
422 PM CDT TUE JUN 24 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0358 PM    LAKE DELTON               WI   WIND DAMAGE
06/24/97   SAUK                           NUMEROUS TREES DOWN

0402 PM    OXFORD                    WI   WIND DAMAGE
06/24/97   MARQUETTE                      SEVERAL TREES DOWN

TH

Local storm report, Jun 24, 4:46 PM CDT, 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
446 PM CDT TUE JUN 24 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0435 PM    JORDAN CENTER             WI   WIND DAMAGE
06/24/97   GREEN                          SEVERAL TREES AND
                                          POWER LINES DOWN

0435 PM    MONTICELLO                WI   WIND DAMAGE
06/24/97   GREEN                          SEVERAL TREES AND
                                          POWER LINES DOWN
TH

Local storm report, Jun 24, 4:49 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
446 PM CDT TUE JUN 24 1997

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0435 PM    JORDAN CENTER             WI   WIND DAMAGE
06/24/97   GREEN                          SEVERAL TREES AND
                                          POWER LINES DOWN

0435 PM    MONTICELLO                WI   WIND DAMAGE
06/24/97   GREEN                          SEVERAL TREES AND
                                          POWER LINES DOWN
TH

The office that day

Everything else NWS Milwaukee, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 24, 4:03 PM CDT	Severe Thunderstorm Warning	MKX	Marquette	32 min
Jun 24, 4:13 PM CDT	Severe Thunderstorm Warning	MKX	Green	47 min
Jun 24, 4:46 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Rock	64 min
Jun 24, 4:59 PM CDT	Severe Thunderstorm Warning	MKX	Dodge, Jefferson	61 min
Jun 24, 5:20 PM CDT	Severe Thunderstorm Warning	MKX	Fond du Lac	45 min
Jun 24, 5:27 PM CDT	Severe Thunderstorm Warning	MKX	Washington, Waukesha	48 min
Jun 24, 5:45 PM CDT	Severe Thunderstorm Warning	MKX	Milwaukee, Ozaukee	60 min
Jun 24, 5:45 PM CDT	Severe Thunderstorm Warning	MKX	Sheboygan	60 min
Jun 24, 6:04 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Racine, Walworth	61 min
Jun 24, 6:04 PM CDT	Severe Thunderstorm Warning	MKX	Waukesha	61 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1997 Every 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.