Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 123, NWS Green Bay, WI

June 29, 1998Marathon County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jun 29, 1998, 9:17 PM CDT for Marathon County, Wisconsin. It was in force for 33 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 29, 1998, 9:17 PM CDT (02:17 UTC)
Expired: Jun 29, 1998, 9:50 PM CDT
In force: 33 min
Issued by: NWS Green Bay, WI
Area: Whole counties

County Marathon County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 2.3 hours before the alert went out and 139 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 171 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1832 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 117 m²/s²
0-3 km storm-relative helicity: 215 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

NWS Green Bay, WI wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 29, 6:45 PM CDT, 2 hours 32 minutes earlier.

Area forecast discussion, Jun 29, 6:45 PM CDT, 2 hours 32 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
645 PM CDT MON JUN 29 1998

HAVE CANCELLED WIND ADVISORY ACROSS THE NORTHERN PORTIONS OF THE
FORECAST AREA. STORMS THAT LEFT DAMAGE TRAIL ACROSS PARTS OF THAT
AREA HAVE DIMINISHED IN INTENSITY.

BROKEN AREA OF SHOWERS/TSTORMS CONTINUE TO DROP TO THE SOUTHEAST
FROM NORTHCENTRAL AND FAR NORTHEAST WISCONSIN. THIS ACTIVITY SHOULD
START TO DIMINISH ONCE THE SUN GOES DOES. MAIN THREAT...IF ANY...WITH
THESE CURRENT STORMS WILL BE THE POSSIBILITY OF SMALL HAIL DUE TO
COLD CORE ALOFT MOVING ACROSS THAT AREA.

REST OF THE FORECAST LOOKS GOOD FOR NOW.

ISAACSON

In the hours before

Special weather statement, Jun 29, 3:20 PM CDT, 5 hours 57 minutes before

WIZ005-010>013-018>022-030-031-300100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
320 PM CDT MON JUN 29 1998

...GUSTY WINDS OVER THE NORTHWOODS...

STRONG WINDS IN THE MID LEVELS OF THE ATMOSPHERE ARE BEING TRANSPORTED
DOWN TO THE SURFACE BY SCATTERED RAIN SHOWERS...CREATING LOCAL WIND
GUSTS TO NEAR 50 MPH.  THE GUSTS HAVE DOWNED TREES AND POWER LINES JUST
SOUTH OF EAGLE RIVER IN SOUTHEAST VILAS COUNTY.

THESE CONDITIONS WILL CONTINUE UNTIL SUNSET.  MORE SHOWERS AND STORMS
ARE EXPECTED DURING THE LATE AFTERNOON...AND ANY OF THESE COULD PRODUCE
ADDITIONAL WIND GUSTS TO 50 MPH...OR HIGHER...ALONG WITH SMALL HAIL.

JKL/EB

Special weather statement, Jun 29, 6:35 PM CDT, 2 hours 42 minutes before

WIZ005-010>013-018-019-021-292350-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
635 PM CDT MON JUN 29 1998

...WIND ADVISORY CANCELLED...

THE WIND ADVISORY THAT HAD BEEN IN EFFECT FOR AREAS ALONG AND
NORTH OF A LINE FROM MERRILL TO OCONTO HAS BEEN CANCELLED.

THE STRONG WINDS THAT WERE AFFECTING THAT AREA HAVE DIMINISHED.
THEREFORE...THE ADVISORY HAS BEEN CANCELLED.

SHOWERS AND THUNDERSTORMS WILL CONTINUE TO AFFECT THE AREA THIS
EVENING. SOME OF THE STRONGER STORMS COULD PRODUCE WIND GUSTS TO
AROUND 35 MPH.

ISAACSON

Local storm report, Jun 29, 8:11 PM CDT, 1 hour 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
811 PM CDT MON JUN 29 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0745 PM    ANTIGO                    WI   WIND DAMAGE
06/29/98   LANGLADE                       TREES DOWN

PLH

Local storm report, Jun 29, 9:08 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
908 PM CDT MON JUN 29 1998

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0855 PM    ROTHSCHILD                WI   .75 INCH HAIL
06/29/98   MARATHON

PLH

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 29, 7:28 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	32 min
Jun 29, 8:17 PM CDT	Severe Thunderstorm Warning	GRB	Marathon	63 min
Jun 29, 8:53 PM CDT	Severe Thunderstorm Warning	GRB	Oconto, Shawano	72 min
Jun 29, 9:14 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Kewaunee	61 min
Jun 29, 9:14 PM CDT	Severe Thunderstorm Warning	GRB	Door	61 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1998 Every 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.