Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 77, NWS La Crosse, WI

June 17, 2001Monroe County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 17, 2001, 9:55 PM CDT for Monroe County, Wisconsin. It was in force for 65 min. 5 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
Jun 17, 2001, 9:55 PM CDT (02:55 UTC)
Expired
Jun 17, 2001, 11:00 PM CDT
In force
65 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Monroe County, WI

The radar

The La Crosse radar (KARX), 48 km from the middle of the area, began a volume at 02:58 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

TimeReportWhereRemark
Jun 17, 10:11 PM CDTThunderstorm Wind 61 MSparta, WI
Jun 17, 10:13 PM CDTHail 0.88Sparta, WI
Jun 17, 10:37 PM CDTHail 1.75Tomah, WI
Jun 17, 10:43 PM CDTThunderstorm Wind 55 ETomah, WI
Jun 17, 10:50 PM CDTThunderstorm Wind 54 ESparta, 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 2.9 hours before the alert went out and 209 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, Green Bay/Straub, WI at 00:00Z on 2001-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 273 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, Green Bay/Straub, WI at 00:00Z on 2001-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
273 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1508 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KARX 180256
SVRLSE

WIC081-180400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
955 PM CDT SUN JUN 17 2001

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONROE COUNTY IN WEST CENTRAL WISCONSIN

* UNTIL 1100 PM CDT

* AT 955 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES WEST OF CATARACT...OR ABOUT 13 MILES
  NORTHWEST OF SPARTA...MOVING SOUTHEAST AT 35 MPH.

* THE SEVERE THUNDERSTORM IS EXPECTED TO BE...
  NEAR SPARTA AT 1005 PM CDT...
  NEAR FORT MC COY AT 1010 PM CDT...
  NEAR TOMAH AT 1020 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.

IssuedProductOfficeCountiesLasted
Jun 17, 8:02 PM CDTSevere Thunderstorm WarningARXBuffalo58 min
Jun 17, 8:37 PM CDTTornado WarningARXBuffalo53 min
Jun 17, 8:56 PM CDTSevere Thunderstorm WarningARXTrempealeau49 min
Jun 17, 9:08 PM CDTSevere Thunderstorm WarningARXJackson67 min
Jun 17, 9:15 PM CDTSevere Thunderstorm WarningARXAdams, Juneau60 min
Jun 17, 9:30 PM CDTSevere Thunderstorm WarningARXBuffalo60 min
Jun 17, 9:36 PM CDTFlash Flood WarningARXBuffalo3 hr
Jun 17, 10:07 PM CDTSevere Thunderstorm WarningARXTrempealeau53 min
Jun 17, 10:32 PM CDTSevere Thunderstorm WarningARXLa Crosse58 min
Jun 17, 10:47 PM CDTSevere Thunderstorm WarningARXJuneau58 min
Jun 17, 11:14 PM CDTSevere Thunderstorm WarningARXMonroe61 min
Jun 17, 11:28 PM CDTSevere Thunderstorm WarningARXAdams32 min
Jun 17, 11:31 PM CDTSevere Thunderstorm WarningARXVernon59 min
Jun 18, 1:19 AM CDTSevere Thunderstorm WarningARXVernon56 min
Jun 18, 1:35 AM CDTSevere Thunderstorm WarningARXRichland55 min
Jun 18, 4:35 AM CDTSevere Thunderstorm WarningARXGrant55 min
Jun 18, 6:03 AM CDTSevere Thunderstorm WarningARXLa Crosse57 min
Jun 18, 6:06 AM CDTSevere Thunderstorm WarningARXTrempealeau54 min
Jun 18, 6:50 AM CDTSevere Thunderstorm WarningARXTrempealeau20 min
Jun 18, 7:15 AM CDTSevere Thunderstorm WarningARXClark60 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2001Every 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.