Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 1, NWS Milwaukee, WI

April 5, 1997Lafayette County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Apr 5, 1997, 4:07 PM CST for Lafayette County, Wisconsin. It was in force for 53 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: Apr 5, 1997, 4:07 PM CST (22:07 UTC)
Expired: Apr 5, 1997, 5:00 PM CST
In force: 53 min
Issued by: NWS Milwaukee, WI
Area: Whole counties

County Lafayette County, WI

What was reported inside it

Time	Report	Where	Remark
Apr 5, 4:25 PM CST	Thunderstorm Wind	Gratiot, WI
Apr 5, 4:40 PM CST	Thunderstorm Wind	Darlington, 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

Davenport, (KDVN), launched 12:00Z, 10.1 hours before the alert went out and 120 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 515 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 99 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.

000 
TTAA00 KMKE 052207 RRA
SVRMKE
WIC065-052305-

BULLETIN - IMMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
407 PM CST SAT APR 5 1997

* SEVERE THUNDERSTORM WARNING FOR
  LAFAYETTE COUNTY - SOUTH CENTRAL WISCONSIN

* UNTIL 500 PM CST
 
* SOME LOCATIONS AFFECTED
  DUNBARTON               BY 429 PM CST
  GRATIOT                 BY 433 PM CST
  SOUTH WAYNE             BY 434 PM CST
  AVON                    BY 435 PM CST
  DARLINGTON              BY 437 PM CST

* AT 400 PM CST...A SEVERE THUNDERSTORM WAS INDICATED BY DOPPLER
  RADAR 37 MILES SOUTHEAST OF DUBUQUE IA OR 33 MILES SOUTH OF
  DUNBARTON MOVING NORTH NORTHEAST AT 55 MPH.

THIS IS A DANGEROUS STORM. IF KYOU 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.
BROWNING/DAVIS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 5, 4:39 PM CST	Severe Thunderstorm Warning	MKX	Green	66 min
Apr 5, 4:58 PM CST	Severe Thunderstorm Warning	MKX	Dane, Iowa	77 min
Apr 5, 4:58 PM CST	Severe Thunderstorm Warning	MKX	Rock	77 min
Apr 5, 5:16 PM CST	Severe Thunderstorm Warning	MKX	Jefferson, Walworth	74 min
Apr 5, 5:16 PM CST	Severe Thunderstorm Warning	MKX	Columbia, Sauk	74 min
Apr 5, 5:36 PM CST	Severe Thunderstorm Warning	MKX	Dodge, Racine, Waukesha	69 min
Apr 5, 5:36 PM CST	Severe Thunderstorm Warning	MKX	Kenosha	69 min
Apr 5, 5:57 PM CST	Severe Thunderstorm Warning	MKX	Milwaukee, Ozaukee, Washington	63 min
Apr 5, 5:57 PM CST	Severe Thunderstorm Warning	MKX	Green Lake, Marquette	63 min
Apr 5, 5:57 PM CST	Severe Thunderstorm Warning	MKX	Fond du Lac	63 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.