Alert archive / Wisconsin / Tornado Warnings in 1998

Tornado Warning 4, NWS La Crosse, WI

March 29, 1998Buffalo County, Wisconsin

NWS La Crosse, WI issued this tornado warning at Mar 29, 1998, 6:31 PM CST for Buffalo County, Wisconsin. It was in force for 29 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
Mar 29, 1998, 6:31 PM CST (00:31 UTC)
Expired
Mar 29, 1998, 7:00 PM CST
In force
29 min
Issued by
NWS La Crosse, WI
Area
Whole counties

County Buffalo County, WI

The radar

The La Crosse radar (KARX), 77 km from the middle of the area, began a volume at 00:34 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 watch it was issued in

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

IssuedProductOfficeLasted
Mar 29, 2:00 PM CSTTornado WatchSPC6 hr
Mar 29, 2:45 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.5 hours before the alert went out and 155 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 1998-03-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 625 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, Minneapolis, MN at 00:00Z on 1998-03-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 499 square meters per square second.1939587897117Sfc1 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
625 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
529 m above ground
0-6 km bulk shear
79 kt
0-1 km storm-relative helicity
499 m²/s²
0-3 km storm-relative helicity
565 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLSE 300032
TORLSE
WIC011-300100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
631 PM CST SUN MAR 29 1998

* TORNADO WARNING FOR
    NORTHERN BUFFALO COUNTY - WEST CENTRAL WISCONSIN

* UNTIL 700 PM CST

* SOME LOCATIONS AFFECTED
    MONDOVI

* AT 630 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 20 MILES SOUTHWEST OF EAU CLAIRE...JUST WEST OF MONDOVI.
  THE STORM WAS MOVING EAST NORTHEAST AT 40 MPH.

* THE STORM WILL BE NEAR MONDOVI AT 640 PM.

IF YOU ARE NEAR THIS DANGEROUS STORM...TAKE COVER IMMEDIATELY IN
THE LOWEST FLOOR AND INNER MOST ROOM OF A BUILDING.

SHEA/NELSON

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 29, 6:05 PM CSTSevere Thunderstorm WarningARXTaylor55 min
Mar 29, 7:11 PM CSTSevere Thunderstorm WarningARXClark, Taylor64 min
Mar 30, 2:50 PM CSTSevere Thunderstorm WarningARXGrant60 min

Nearby

Tornado Warnings in Wisconsin, 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; radar from the NEXRAD Level II archive.