Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 116, NWS Twin Cities, MN

May 30, 1998Barron County, Polk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at May 30, 1998, 9:26 PM CDT for Barron County, Polk County, Wisconsin. It was in force for 64 min. 2 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
May 30, 1998, 9:26 PM CDT (02:26 UTC)
Expired
May 30, 1998, 10:30 PM CDT
In force
64 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Barron County, WI, Polk County, WI

What was reported inside it

TimeReportWhereRemark
May 30, 9:45 PM CDTHail 1Milltown, WI
May 30, 10:00 PM CDTHail 0.75Cumberland, 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 watch it was issued in

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

IssuedProductOfficeLasted
May 30, 4:30 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.4 hours before the alert went out and 132 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 1998-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1397 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 1998-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 349 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
1397 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
1452 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
349 m²/s²
0-3 km storm-relative helicity
357 m²/s²
Significant tornado parameter
1.1
Supercell composite
4.6

Open this sounding in Storm Lab

The text

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

414 
WUUS1 KMSP 310229 RRB
SVRMSP
WIC005-095-310330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
926 PM CDT SAT MAY 30 1998

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BARRON COUNTY IN NORTHWESTERN WISCONSIN
  NORTHERN POLK COUNTY IN NORTHWESTERN WISCONSIN

* UNTIL 1030 PM CDT

* AT 925 PM CDT...DOPPLER RADAR INDICATED SEVERE STORMS 20 MILES
  NORTHWEST OF BALSAM LAKE...TO 30 MILES WEST OF RICE LAKE..  THE
  STORMS WERE MOVING EAST AT 30 MPH.  DIME SIZE HAIL FELL IN
  FREDERIC AT 905 PM.

* SOME LOCATIONS AFFECTED
    MILLTOWN
    LUCK
    CUMBERLAND
    RICE LAKE
    MCKINLEY
    HAUGEN

THESE ARE DANGEROUS STORMS.  STAY INDOORS AWAY FROM WINDOWS.

A TORNADO WATCH IS IN EFFECT.  SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES.
TDK


&

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 30, 8:10 PM CDT, 1 hour 16 minutes before
MNZ047-048-310300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
810 PM CDT SAT MAY 30 1998

...TORNADO WATCH NUMBER 468 CANCELED FOR A SMALL PART OF WEST
CENTRAL MINNESOTA...

THE TORNADO WATCH HAS BEEN CANCELLED FOR STEVENS AND POPE COUNTY OF
WEST CENTRAL MINNESOTA.  THE SEVERE THUNDERSTORMS HAVE MOVED SOUTH
OF THESE COUNTIES.  THE TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF
THE SOUTHERN HALF OF THE STATE UNTIL 10 PM.
BAP
Special weather statement, May 30, 8:10 PM CDT, 1 hour 16 minutes before
MNZ047-048-310300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
810 PM CDT SAT MAY 30 1998

...TORNADO WATCH NUMBER 468 CANCELED FOR A SMALL PART OF WEST
CENTRAL MINNESOTA...

THE TORNADO WATCH HAS BEEN CANCELLED FOR STEVENS AND POPE COUNTY OF
WEST CENTRAL MINNESOTA.  THE SEVERE THUNDERSTORMS HAVE MOVED SOUTH
OF THESE COUNTIES.  THE TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF
THE SOUTHERN HALF OF THE STATE UNTIL 10 PM.
BAP

The office that day

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

IssuedProductOfficeCountiesLasted
May 30, 8:26 PM CDTSevere Thunderstorm WarningMPXPolk64 min
May 30, 10:54 PM CDTSevere Thunderstorm WarningMPXPierce, Saint Croix46 min
May 30, 11:18 PM CDTSevere Thunderstorm WarningMPXDunn, Pepin42 min
May 30, 11:35 PM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire55 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.