Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 28, NWS La Crosse, WI

May 17, 2000Grant County, Wisconsin; Clayton County, Iowa

NWS La Crosse, WI issued this severe thunderstorm warning at May 17, 2000, 12:57 PM CDT for Grant County, Wisconsin; Clayton County, Iowa. It was in force for 78 min. 11 reports came from 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, with what was reported inside it.

The facts

Issued
May 17, 2000, 12:57 PM CDT (17:57 UTC)
Expired
May 17, 2000, 2:15 PM CDT
In force
78 min
Issued by
NWS La Crosse, WI
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Clayton County, IA, Grant County, WI

What was reported inside it

TimeReportWhereRemark
May 17, 1:10 PM CDTHail 0.75Mc Gregor, IA
May 17, 1:13 PM CDTHail 0.75Wyalusing, WI
May 17, 1:25 PM CDTHail 1.75Patch Grove, WI
May 17, 1:43 PM CDTHail 1.75Lancaster, WI
May 17, 1:43 PM CDTHail 1.75Lancaster, WI
May 17, 1:45 PM CDTHail 1.5Lancaster, WI
May 17, 1:45 PM CDTHail 1.5Lancaster, WI
May 17, 1:50 PM CDTHail 1.75Fennimore, WI
May 17, 2:00 PM CDTHail 1Rewey, WI
May 17, 2:05 PM CDTHail 2Ellenboro, WI
May 17, 2:13 PM CDTHail 1.75Belmont, 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

Davenport, (KDVN), launched 12:00Z, 6.0 hours before the alert went out and 148 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, Davenport, at 12:00Z on 2000-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 46 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, Davenport, at 12:00Z on 2000-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 square meters per square second.1939587897Sfc1 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
46 J/kg
Mixed-layer CIN
-381 J/kg
Mixed-layer LCL
1129 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
67 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

460 
WUUS53 KARX 171759
SVRLSE
IAC043-WIC043-171915-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1257 PM CDT WED MAY 17 2000

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GRANT COUNTY IN SOUTHWEST WISCONSIN
  NORTHEAST CLAYTON COUNTY IN NORTHEAST IOWA

* UNTIL 215 PM CDT

* AT 1257 PM CDT...WEATHER SPOTTERS REPORTED A SEVERE THUNDERSTORM   
  PRODUCING LARGE HAIL NEAR NATIONAL...OR ABOUT 8 MILES SOUTHWEST OF 
  PRAIRIE DU CHIEN. THIS ACTIVITY WAS MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  NEAR PATCH GROVE AT 110 PM CDT
  NEAR BLOOMINGTON AT 115 PM 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.

RRS

LAT...LON 4305 9128 4287 9131 4269 9024 4296 9018

&

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 9:09 AM CDTSevere Thunderstorm WarningARXGrant36 min
May 17, 11:45 AM CDTSevere Thunderstorm WarningARXGrant60 min
May 17, 3:36 PM CDTSevere Thunderstorm WarningARXBuffalo, Trempealeau69 min
May 17, 5:25 PM CDTFlash Flood WarningARXLa Crosse, Monroe3 hr
May 17, 8:41 AM CDTSevere Thunderstorm WarningARXFayette64 min
May 17, 10:29 AM CDTSevere Thunderstorm WarningARXFloyd31 min
May 17, 11:09 AM CDTSevere Thunderstorm WarningARXChickasaw36 min
May 17, 11:39 AM CDTSevere Thunderstorm WarningARXFayette, Winneshiek51 min
May 17, 12:23 PM CDTSevere Thunderstorm WarningARXClayton37 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2000Severe Thunderstorm Warnings in Iowa, 2000Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.