Alert archive / Wisconsin / Tornado Warnings in 1996

Tornado Warning 27, NWS Twin Cities, MN

September 10, 1996Chippewa County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Sep 10, 1996, 5:42 PM CDT for Chippewa County, Wisconsin. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 10, 1996, 5:42 PM CDT (22:42 UTC)
Expired
Sep 10, 1996, 6:00 PM CDT
In force
18 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

County Chippewa County, WI

The radar

The La Crosse radar (KARX), 139 km from the middle of the area, began a volume at 22:43 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.7 hours before the alert went out and 184 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 1996-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 56 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 1996-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 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
56 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
1412 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
193 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 102244
TORMSP
WIC017-102300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
542 PM CDT TUE SEP 10 1996

* TORNADO WARNING FOR
  EXTREME NORTHEASTERN CHIPPEWA COUNTY - WEST CENTRAL WISCONSIN

* UNTIL 600 PM CDT
 
* SOME LOCATIONS AFFECTED
    HOLCOMBE FLOWAGE AREA
    HOLCOMBE

* AT 540 PM CDT DOPPLER RADAR DETECTED A TORNADO 50 NORTHEAST OF
  EAU CLAIRE MOVING SOUTHEAST AT 25 MPH.


IF YOU ARE IN A CAR...GO IN A NEARBY STURDY BUILDING!  AS A LAST
RESORT LIE FLAT IN A DITCH AND COVER YOUR HEAD!

THELEN

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 10, 4:09 PM CDTSevere Thunderstorm WarningMPXBarron51 min
Sep 10, 4:28 PM CDTSevere Thunderstorm WarningMPXRusk62 min
Sep 10, 4:56 PM CDTSevere Thunderstorm WarningMPXBarron64 min

Nearby

Tornado Warnings in Wisconsin, 1996Every tornado warning in 1996Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.