Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 49, NWS La Crosse, WI

September 10, 1996Buffalo County, Trempealeau County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Sep 10, 1996, 9:25 PM CDT for Buffalo County, Trempealeau County, Wisconsin. It was in force for 65 min. 1 report 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: Sep 10, 1996, 9:25 PM CDT (02:25 UTC)
Expired: Sep 10, 1996, 10:30 PM CDT
In force: 65 min
Issued by: NWS La Crosse, WI
Area: Whole counties

Counties Buffalo County, WI, Trempealeau County, WI

The radar

The La Crosse radar (KARX), 65 km from the middle of the area, began a volume at 02:29 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

Time	Report	Where	Remark
Sep 10, 9:30 PM CDT	Hail 0.75	Montana, 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, 2.4 hours before the alert went out and 171 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 786 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1771 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -9 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLSE 110226
SVRLSE
WIC011-121-110330-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
925 PM CDT TUE SEP 10 1996
 
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN WEST CENTRAL WISCONSIN
 
   ...NORTHERN BUFFALO COUNTY...NORTHERN TREMPEALEAU COUNTY
 
AT 923 PM...DOPPLER RADAR IN LA CROSSE INDICATED A SEVERE THUNDERSTORM
NEAR LOOKOUT IN NORTHERN BUFFALO COUNTY....WHICH IS 50 MILES NORTHWEST
OF LA CROSSE. THIS STORM CONTAINS HAIL IN EXCESS OF THREE-QUARTERS OF AN
INCH IN DIAMETER AND IS MOVING SOUTHEAST AT 30 MPH.
 
ELK CREEK AND INDEPENDENCHE WILL BE AFFECTED BY THIS STORM BY 945 PM.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING. HAIL 3/4 OF AN INCH OR LARGER IN DIAMETER AND
DEADLY LIGHTNING CAN BE EXPECTED WITH THIS STORM.
 
DB

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 9:55 PM CDT	Severe Thunderstorm Warning	ARX	Jackson, Trempealeau	65 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1996 Every 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; radar from the NEXRAD Level II archive.