Alert archive / Minnesota / Tornado Warnings in 1998

Tornado Warning 27, NWS La Crosse, WI

June 24, 1998Winona County, Minnesota

NWS La Crosse, WI issued this tornado warning at Jun 24, 1998, 9:55 PM CDT for Winona County, Minnesota. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 24, 1998, 9:55 PM CDT (02:55 UTC)
Expired
Jun 24, 1998, 11:00 PM CDT
In force
65 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Winona County, MN

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 24, 9:00 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.9 hours before the alert went out and 174 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, Minneapolis, MN at 00:00Z on 1998-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3921 joules per kilogram.LCLEL10008507005003002001001 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, Minneapolis, MN at 00:00Z on 1998-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 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
3921 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1033 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
1.2
Supercell composite
5.8

Open this sounding in Storm Lab

The text

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

390 
WFUS1 KLSE 250256 RRA
TORLSE
MNC169-250400-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
955 PM CDT WED JUN 24 1998

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN WINONA COUNTY IN SOUTHEASTERN MINNESOTA

* UNTIL 1100 PM CDT

* AT 953 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 5 MILES NORTH OF ST. CHARLES OR 20 MILES EAST OF
  ROCHESTER...MOVING NORTHEAST AT 30 MPH.

* THE TORNADO WILL BE NEAR...
  ELBA BY 1005 PM
  ALTURA BY 1005 PM

GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR

KING/DB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 8:18 PM CDTSevere Thunderstorm WarningARXHouston57 min
Jun 24, 9:02 PM CDTSevere Thunderstorm WarningARXFillmore58 min
Jun 24, 9:16 PM CDTSevere Thunderstorm WarningARXOlmsted64 min
Jun 24, 9:32 PM CDTTornado WarningARXOlmsted63 min
Jun 24, 9:35 PM CDTTornado WarningARXFillmore, Houston65 min
Jun 24, 9:52 PM CDTTornado WarningARXWabasha63 min
Jun 24, 10:26 PM CDTTornado WarningARXWinona64 min
Jun 24, 10:55 PM CDTTornado WarningARXWabasha, Winona60 min
Jun 25, 1:35 AM CDTSevere Thunderstorm WarningARXDodge, Olmsted55 min
Jun 25, 1:35 AM CDTSevere Thunderstorm WarningARXWabasha55 min

Nearby

Tornado Warnings in Minnesota, 1998Every tornado warning in 1998Tornadoes in 1998

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.