Alert archive / Minnesota / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 28, NWS La Crosse, WI

August 7, 1996Houston County, Minnesota; La Crosse County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Aug 7, 1996, 1:55 AM CDT for Houston County, Minnesota; La Crosse County, Wisconsin. It was in force for 35 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: Aug 7, 1996, 1:55 AM CDT (06:55 UTC)
Expired: Aug 7, 1996, 2:30 AM CDT
In force: 35 min
Issued by: NWS La Crosse, WI
Area: Whole counties

Counties Houston County, MN, La Crosse County, WI

The radar

The La Crosse radar (KARX), 10 km from the middle of the area, began a volume at 06:57 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
Aug 7, 1:55 AM CDT	Thunderstorm Wind 50	Holmen, WI
Aug 7, 2:08 AM CDT	Thunderstorm Wind 52	Brownsville, MN
Aug 7, 2:10 AM CDT	Thunderstorm Wind 52	La Crosse, WI
Aug 7, 2:15 AM CDT	Thunderstorm Wind 52	La Crosse, 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, 6.9 hours before the alert went out and 217 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: 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 KLSE 070655
SVRLSE
MNC055-WIC053-063-070730-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
155 AM CDT WED AUG 7 1996
 
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  230 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN SOUTHEAST MINNESOTA
 
   ...HOUSTON COUNTY
 
 
IN WEST CENTRAL WISCONSIN
 
   ...JACKSON COUNTY...LA CROSSE COUNTY
 
A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM 50 MILES NORTH OF LA CROSSE
TO 10 MILES SOUTHWEST OF LA CROSSE MOVING EAST NORTHEAST AT 40 MPH.
 
THESE STORMS WILL AFFECT BLACK RIVER FALLS...LA CROSSE WI AND CALADONIA
MN BETWEEN 2 AND 215 AM CDT.
 
 
WINDS OF 60 MPH OR HIGHER CAN BE EXPECTED WITH THIS STORM ALONG
WITH DEADLY LIGHTNING. MOVE INSIDE A STRONG BUILDING SUCH AS YOUR
HOME AND REMAIN THERE UNTIL THE STORM PASSES.

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 12:15 AM CDT	Severe Thunderstorm Warning	ARX	Dodge	60 min
Aug 7, 1:26 AM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	34 min
Aug 7, 1:40 AM CDT	Severe Thunderstorm Warning	ARX	Clark, Taylor	50 min
Aug 7, 1:55 AM CDT	Severe Thunderstorm Warning	ARX	Jackson	35 min
Aug 7, 2:15 AM CDT	Severe Thunderstorm Warning	ARX	Crawford, Vernon	45 min
Aug 7, 2:15 AM CDT	Severe Thunderstorm Warning	ARX	Monroe	45 min
Aug 7, 2:29 AM CDT	Severe Thunderstorm Warning	ARX	Jackson, La Crosse	16 min
Aug 7, 2:37 AM CDT	Severe Thunderstorm Warning	ARX	Grant	53 min
Aug 7, 2:52 AM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau	68 min
Aug 7, 2:57 AM CDT	Severe Thunderstorm Warning	ARX	Richland	48 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1996 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.