Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 22, NWS Twin Cities, MN

March 29, 1998Dunn County, Pepin County, Pierce County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Mar 29, 1998, 5:58 PM CST for Dunn County, Pepin County, Pierce County, Wisconsin. It was in force for 47 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, 5:58 PM CST (23:58 UTC)
Expired
Mar 29, 1998, 6:45 PM CST
In force
47 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Dunn County, WI, Pepin County, WI, Pierce County, WI

The radar

The Minneapolis radar (KMPX), 112 km from the middle of the area, began a volume at 00:04 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
Mar 29, 3:15 PM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 12.0 hours before the alert went out and 115 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 12:00Z on 1998-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 1998-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 160 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
551 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
160 m²/s²
0-3 km storm-relative helicity
251 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 
TTAA00 KMSP 300001
SVRMSP
WIC033-091-093-300045-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
558 PM CST SUN MAR 29 1998


* SEVERE THUNDERSTORM WARNING FOR
  DUNN COUNTY - WEST CENTRAL WISCONSIN
  PEPIN COUNTY - WEST CENTRAL WISCONSIN
  PIERCE COUNTY - WEST CENTRAL WISCONSIN

* UNTIL 645 PM CST

* SOME LOCATIONS AFFECTED
    PLUM CITY
    DURAND
    MENOMONIE
    EAU GALLE

* AT 556 PM CST DOPPLER RADAR INDICATED A LINE OF SEVERE STORMS FROM
  10 MILES WEST OF MENOMONIE TO MAIDEN ROCK.  THE STORMS WERE MOVING
  NORTHEAST AT 30 MPH.

THESE ARE DANGEROUS STORMS WITH A HISTORY OF PRODUCING LARGE HAIL.
1 INCH HAIL WAS REPORTED IN EASTERN PIERCE COUNTY AT 555 PM.  STAY
INDOORS AWAY FROM WINDOWS.

THIS SEVERE THUNDERSTORM WARNING REPLACES THE TORNADO WARNING FOR
SOUTHERN DUNN COUNTY.  THE TORNADO WARNING FOR SOUTHERN DUNN COUNTY
IS NO LONGER IN EFFECT.

MILLER


&

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 29, 3:32 PM CSTSevere Thunderstorm WarningMPXPierce63 min
Mar 29, 3:49 PM CSTSevere Thunderstorm WarningMPXPolk, Saint Croix56 min
Mar 29, 4:09 PM CSTSevere Thunderstorm WarningMPXDunn46 min
Mar 29, 4:19 PM CSTTornado WarningMPXDunn41 min
Mar 29, 4:43 PM CSTSevere Thunderstorm WarningMPXBarron, Chippewa, Rusk62 min
Mar 29, 4:53 PM CSTSevere Thunderstorm WarningMPXPolk37 min
Mar 29, 5:02 PM CSTTornado WarningMPXPepin28 min
Mar 29, 5:28 PM CSTTornado WarningMPXDunn47 min
Mar 29, 5:36 PM CSTSevere Thunderstorm WarningMPXEau Claire39 min
Mar 29, 5:55 PM CSTSevere Thunderstorm WarningMPXChippewa65 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1998Every severe thunderstorm warning 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.