Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 75, NWS Milwaukee, WI

July 26, 1997Dane County, Jefferson County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Jul 26, 1997, 4:33 PM CDT for Dane County, Jefferson County, Wisconsin. It was in force for 57 min. 4 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, 4:33 PM CDT (21:33 UTC)
Expired
Jul 26, 1997, 5:30 PM CDT
In force
57 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

Counties Dane County, WI, Jefferson County, WI

The radar

The Milwaukee radar (KMKX), 45 km from the middle of the area, began a volume at 21:34 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, 4:40 PM CDTThunderstorm Wind 61Waunakee, WI
Jul 26, 5:00 PM CDTThunderstorm Wind 52Lake Mills, WI
Jul 26, 5:25 PM CDTThunderstorm WindJefferson, WI
Jul 26, 5:34 PM CDTThunderstorm Wind 51Sullivan, 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, 9.6 hours before the alert went out and 179 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 262133 RRA
SVRMKE
WIC025-055-262230-

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

* SEVERE THUNDERSTORM WARNING FOR
  DANE COUNTY - SOUTH CENTRAL WISCONSIN
  JEFFERSON COUNTY - SOUTHEASTERN WISCONSIN

* UNTIL 530 PM CDT
 
* SOME LOCATIONS AFFECTED
  DANE
  ROXBURY
  SPRINGFIELD CORNERS
  LAKE MILLS

* AT 430 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
  SEVERE THUNDERSTORMS 23 MILES NORTHWEST OF MADISON NEAR PRAIRIE DU
  SAC AND 24 MILES EAST OF MADISON NEAR LAKE MILLS. THE STORMS WERE
  MOVING EAST SOUTHEAST AT 30 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.

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, 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 WarningMKXKenosha, Racine64 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.