Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 37, NWS La Crosse, WI

May 18, 2000La Crosse County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 18, 2000, 7:33 AM CDT for La Crosse County, Wisconsin. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: May 18, 2000, 7:33 AM CDT (12:33 UTC)
Expired: May 18, 2000, 8:15 AM CDT
In force: 42 min
Issued by: NWS La Crosse, WI
Area: Whole counties; the outline is the Mesonet’s reconstruction

County La Crosse County, WI

The radar

The La Crosse radar (KARX), 10 km from the middle of the area, began a volume at 12:36 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, 0.6 hours before the alert went out and 228 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 592 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 113 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 
WUUS53 KARX 181234
SVRLSE
WIC063-181315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
733 AM CDT THU MAY 18 2000

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LA CROSSE COUNTY IN WEST CENTRAL WISCONSIN

* UNTIL 815 AM CDT

* AT 733 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM PRODUCING LARGE HAIL 3 MILES EAST OF BARRE
  MILLS...OR ABOUT 9 MILES EAST OF LA CROSSE. THIS ACTIVITY WAS
  MOVING NORTHEAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR WEST SALEM AT 740 AM CDT
  NEAR BANGOR AT 745 AM CDT
  NEAR BURNS AT 750 AM CDT

LARGE DESTRUCTIVE HAIL IS THE MAIN THREAT WITH THESE STORMS. FOR YOUR
PROTECTION...SEEK SHELTER IN A STURDY BUILDING AND STAY AWAY FROM
WINDOWS.

NELSON

LAT...LON 4381 9123 4371 9102 4393 9092 4408 9100

The office that day

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

Issued	Product	Office	Counties	Lasted
May 18, 5:41 AM CDT	Severe Thunderstorm Warning	ARX	Vernon	34 min
May 18, 5:51 AM CDT	Severe Thunderstorm Warning	ARX	Grant	39 min
May 18, 6:08 AM CDT	Severe Thunderstorm Warning	ARX	Buffalo, Trempealeau	67 min
May 18, 6:28 AM CDT	Severe Thunderstorm Warning	ARX	Grant	32 min
May 18, 7:12 AM CDT	Severe Thunderstorm Warning	ARX	Vernon	33 min
May 18, 7:58 AM CDT	Severe Thunderstorm Warning	ARX	Jackson, Monroe	62 min
May 18, 1:20 PM CDT	Severe Thunderstorm Warning	ARX	Grant	40 min
May 18, 2:00 PM CDT	Severe Thunderstorm Warning	ARX	Grant	30 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2000 Every severe thunderstorm warning in 2000

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.