Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 53, NWS La Crosse, WI

June 11, 2001Clark County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 11, 2001, 7:30 PM CDT for Clark County, Wisconsin. It was in force for 30 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: Jun 11, 2001, 7:30 PM CDT (00:30 UTC)
Expired: Jun 11, 2001, 8:00 PM CDT
In force: 30 min
Issued by: NWS La Crosse, WI
Area: Whole counties

County Clark County, WI

The radar

The La Crosse radar (KARX), 111 km from the middle of the area, began a volume at 00:30 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
Jun 11, 7:38 PM CDT	Thunderstorm Wind 61 M	Riplinger, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 11, 3:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.5 hours before the alert went out and 201 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: 2182 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 990 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.4

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KARX 120031 RRA
SVRLSE
WIC019-120100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
730 PM CDT MON JUN 11 2001

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLARK COUNTY IN CENTRAL WISCONSIN

* UNTIL 800 PM CDT

* AT 730 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 6 MILES NORTHEAST OF NEILLSVILLE...MOVING     
  SOUTHEAST AT 35 MPH. 

* THE SEVERE THUNDERSTORM IS EXPECTED TO BE...
  NEAR SHORTVILLE AT 735 PM CDT...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND GUSTS IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR
YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS.

$$

BOYNE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 7:28 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	47 min
Jun 11, 7:34 PM CDT	Severe Thunderstorm Warning	ARX	Jackson	56 min
Jun 11, 7:46 PM CDT	Severe Thunderstorm Warning	ARX	La Crosse, Trempealeau	59 min
Jun 11, 8:09 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau, Monroe	36 min
Jun 11, 8:14 PM CDT	Severe Thunderstorm Warning	ARX	Buffalo	61 min
Jun 11, 8:45 PM CDT	Severe Thunderstorm Warning	ARX	La Crosse, Trempealeau	75 min
Jun 11, 9:27 PM CDT	Severe Thunderstorm Warning	ARX	Monroe, Vernon	63 min
Jun 11, 10:26 PM CDT	Severe Thunderstorm Warning	ARX	Richland	64 min
Jun 11, 10:29 PM CDT	Severe Thunderstorm Warning	ARX	Juneau, Monroe	61 min
Jun 11, 11:30 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau	60 min
Jun 11, 11:30 PM CDT	Severe Thunderstorm Warning	ARX	Monroe	60 min
Jun 12, 1:54 AM CDT	Severe Thunderstorm Warning	ARX	Crawford	66 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2001 Every severe thunderstorm warning in 2001

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.