Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 79, NWS Milwaukee, WI

July 26, 1997Kenosha County, Racine County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 26, 1997, 5:41 PM CDT for Kenosha County, Racine County, Wisconsin. It was in force for 64 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 26, 1997, 5:41 PM CDT (22:41 UTC)
Expired
Jul 26, 1997, 6:45 PM CDT
In force
64 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

Counties Kenosha County, WI, Racine County, WI

The radar

The Milwaukee radar (KMKX), 69 km from the middle of the area, began a volume at 22:44 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

TimeReportWhereRemark
Jul 26, 6:10 PM CDTThunderstorm WindWaterford, WI
Jul 26, 6:22 PM CDTThunderstorm WindSlades Corners, 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.

IssuedProductOfficeLasted
Jul 26, 4:00 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.7 hours before the alert went out and 205 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 1997-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 1997-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
6 J/kg
Mixed-layer CIN
-429 J/kg
Mixed-layer LCL
690 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
77 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 262242 RRA
SVRMKE
WIC059-079-089-101-131-262345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
541 PM CDT SAT JUL 26 1997

* SEVERE THUNDERSTORM WARNING FOR
  KENOSHA COUNTY - SOUTHEASTERN WISCONSIN
  MILWAUKEE COUNTY - SOUTHEASTERN WISCONSIN
  OZAUKEE COUNTY - SOUTHEASTERN WISCONSIN
  RACINE COUNTY - SOUTHEASTERN WISCONSIN
  WASHINGTON COUNTY - SOUTHEASTERN WISCONSIN

* UNTIL 645 PM CDT
 
* SOME LOCATIONS AFFECTED
  MILWAUKEE
  WEST BEND
  RACINE
  CEDARBURG

* AT 535 PM RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM
  WESTERN WASHINGTON COUNTY...CENTRAL WAUKESHA...NORTHERN WALWORTH
  COUNTIES.  THE LINE WAS MOVING EAST SOUTHEAST AT 30 MPH.
  THIS LINE HAS PRODUCED WINDS TO 60 MPH...TORRENTIAL RAIN AND
  NUMEROUS REPORTS OF TREES DOWN.

THIS IS A DANGEROUS STORM SITUATION. IF YOU ARE IN ITS PATH YOU
SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO
N.OT USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY
UNTIL THE STORM HAS PASSED.

TZ/JH
 

&

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 7:21 PM CDTSevere Thunderstorm WarningMKXDane, Dodge, Jefferson54 min
Jul 25, 7:31 PM CDTTornado WarningMKXDane, Jefferson29 min
Jul 25, 8:01 PM CDTTornado WarningMKXDane, Jefferson34 min
Jul 25, 8:21 PM CDTSevere Thunderstorm WarningMKXOzaukee, Sheboygan, Washington59 min
Jul 25, 8:28 PM CDTTornado WarningMKXDane, Jefferson32 min
Jul 25, 8:57 PM CDTTornado WarningMKXDane, Dodge, Jefferson63 min
Jul 25, 9:17 PM CDTFlash Flood WarningMKXDane, Jefferson3 hr
Jul 25, 11:11 PM CDTSevere Thunderstorm WarningMKXOzaukee, Washington49 min
Jul 26, 3:50 PM CDTSevere Thunderstorm WarningMKXSauk40 min
Jul 26, 4:10 PM CDTSevere Thunderstorm WarningMKXColumbia65 min
Jul 26, 4:33 PM CDTSevere Thunderstorm WarningMKXDane, Jefferson57 min
Jul 26, 5:03 PM CDTSevere Thunderstorm WarningMKXDodge57 min
Jul 26, 5:27 PM CDTSevere Thunderstorm WarningMKXJefferson, Waukesha63 min
Jul 26, 5:35 PM CDTSevere Thunderstorm WarningMKXWalworth55 min
Jul 26, 5:41 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Ozaukee, Washington64 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.