Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 171, NWS Twin Cities, MN

August 7, 19964 counties in Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 7, 1996, 12:26 AM CDT for 4 counties in Wisconsin. It was in force for 64 min. 3 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
Aug 7, 1996, 12:26 AM CDT (05:26 UTC)
Expired
Aug 7, 1996, 1:30 AM CDT
In force
64 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Barron County, WI, Chippewa County, WI, Dunn County, WI, Rusk County, WI

What was reported inside it

TimeReportWhereRemark
Aug 7, 1:00 AM CDTThunderstorm Wind 52Colfax, WI
Aug 7, 1:10 AM CDTThunderstorm Wind 52Chippewa Falls, WI
Aug 7, 1:23 AM CDTThunderstorm Wind 50Cadott, 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

Minneapolis, MN (KMPX), launched 00:00Z, 5.4 hours before the alert went out and 167 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, Minneapolis, MN at 00:00Z on 1996-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4613 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, Minneapolis, MN at 00:00Z on 1996-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.19395878Sfc1 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
4613 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
130 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 KMSP 070529
SVRMSP
WIC005-017-033-107-070615-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1226 AM CDT WED AUG 7 1996

* SEVERE THUNDERSTORM WARNING FOR
  EASTERN BARRON COUNTY - NORTHWEST WISCONSIN
  CHIPPEWA COUNTY - WEST CENTRAL WISCONSIN
  EASTERN DUNN COUNTY - WEST CENTRAL WISCONSIN
  RUSK COUNTY - NORTHWEST WISCONSIN

* UNTIL 130 AM CDT
 
* SOME LOCATIONS AFFECTED
    RICE LAKE
    BARRON
    WHEELER
    MENOMONIE

* AT 1223 AM CDT...DOPPLER RADAR DETECTED A LINE OF SEVERE
  THUNDERSTORMS FROM TURTLE LAKE TO KNAPP TO ELMWOOD OR FROM ABOUT
  20 MILES WEST OF RICE LAKE TO TO 40 MILES WEST OF EAU CLAIRE
  MOVING EAST 40 MPH.

THIS IS A DANGEROUS STORM...WITH DAMAGING WINDS. STAY INDOORS AWAY
FROM WINDOWS.

MILLER

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 11:05 PM CDTSevere Thunderstorm WarningMPXPierce55 min
Aug 6, 11:05 PM CDTSevere Thunderstorm WarningMPXPolk, Saint Croix55 min
Aug 7, 1:31 AM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire44 min
Aug 7, 1:31 AM CDTSevere Thunderstorm WarningMPXRusk44 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1996Every severe thunderstorm warning in 1996

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.