Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 107, NWS Twin Cities, MN

June 29, 1996Eau Claire County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 29, 1996, 3:34 PM CDT for Eau Claire County, Wisconsin. It was in force for 56 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 29, 1996, 3:34 PM CDT (20:34 UTC)
Expired
Jun 29, 1996, 4:30 PM CDT
In force
56 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Eau Claire County, WI

What was reported inside it

TimeReportWhereRemark
Jun 29, 3:57 PM CDTThunderstorm Wind 55Cleghorn, WI
Jun 29, 4:00 PM CDTThunderstorm Wind 55Allen, 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 12:00Z, 8.6 hours before the alert went out and 183 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 12:00Z on 1996-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 734 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 12:00Z on 1996-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 185 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
734 J/kg
Mixed-layer CIN
-155 J/kg
Mixed-layer LCL
1273 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
185 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMSP 292036
SVRMSP
WIC035-292130-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
334 PM CDT SAT JUN 29 1996

* SEVERE THUNDERSTORM WARNING FOR
  EAU CLAIRE COUNTY - WEST CENTRAL WISCONSIN

* UNTIL 430 PM CDT
 
* SOME LOCATIONS AFFECTED
    FALL CREEK
    FOSTER
    AUGUSTA

* AT 335 PM CDT DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM JUST
  EAST OF DURAND OR ABOUT 25 MILES SOUTHWEST OF EAU CLAIRE MOVING
  EAST 40 MPH.

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

HOWIESON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 2:30 PM CDTSevere Thunderstorm WarningMPXPierce65 min
Jun 29, 3:00 PM CDTSevere Thunderstorm WarningMPXDunn, Pepin60 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.