Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 143, NWS Green Bay, WI

August 23, 1998Door County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 23, 1998, 6:04 PM CDT for Door County, Wisconsin. It was in force for 56 min. 1 report 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: Aug 23, 1998, 6:04 PM CDT (23:04 UTC)
Expired: Aug 23, 1998, 7:00 PM CDT
In force: 56 min
Issued by: NWS Green Bay, WI
Area: Whole counties

County Door County, WI

What was reported inside it

Time	Report	Where	Remark
Aug 23, 6:30 PM CDT	Tornado F3	Egg Harbor, 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 nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.1 hours before the alert went out and 71 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: 852 J/kg
Mixed-layer CIN: -92 J/kg
Mixed-layer LCL: 839 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

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

051 
WUUS1 KGRB 232306 RRA
SVRGRB
WIC029-240000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
604 PM CDT SUN AUG 23 1998

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DOOR COUNTY IN NORTHEAST WISCONSIN

* UNTIL 700 PM CDT

* AT 601 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A SEVERE
  THUNDERSTORM 8 MILES NORTHEAST OF MARINETTE. MOVEMENT WAS SOUTHEAST
  AT 25 MILES AN HOUR.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  EGG HARBOR BY 630 PM
  BAILEYS HARBOR BY 645 PM
  JACKSONPORT BY 645 PM

THIS THUNDERSTORM WILL PRODUCE HAIL UP TO THE SIZE OF GOLF BALLS. STAY
INSIDE A STURDY BUILDING UNTIL THE STORM PASSES. THIS THUNDERSTORM WILL
ALSO PRODUCE WINDS TO 60 MPH. REMEMBER...SEVERE THUNDERSTORMS CAN
PRODUCE TORNADOES WITH LITTLE WARNING.

JKL/JS

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 Aug 23, 2:40 PM CDT, 3 hours 24 minutes earlier.

Area forecast discussion, Aug 23, 2:40 PM CDT, 3 hours 24 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
240 PM CDT SUN AUG 23 1998

LACK OF SIG LOW-LVL CONVG OVR AREA AND SYNOPTIC SCALE SINKING BEHIND
DEPARTING SHRTWV TROF PREVENTED TSTM DVLPMT DURG MOST OF DAY...XCPT NR
UP BORDER WHICH WAS IN FAVORED LEFT EXIT REGION OF ASSOCD JET MAX.
HOWEVER...DURING LAST 30 MINUTES...1KM VIS SAT AND RECENT 88D IMAGES
INDCT DVLPG LINE OF CU DVLPG INTO CBS OVR CNTRL PART OF STATE (SW PART
OF OUR CWA) DUE IN PART TO STRONG INSTAB WITH SFC TEMPS IN M-U 80S AND
DEWPTS IN L-M 70S.

AT 19Z SFC COLD FNT EXTENDED FM N-CNTRL MN TO SRN SD.  THE NRN PART OF
THE FNT WL CONT TO MOV E TNGT...ENTERING NW PART OF OUR FCST AREA AFT BY
02Z...AND EXITING SE PART OF FCST AREA BY ABT 08Z.  GIVEN THE MARGINAL
INSTAB WITH THE TIME OF DAY AND WEAK CONVG ALNG FNT...SMALL CHC RW/TRW
TNGT WITH FNT.

NGM MOS GUID HAS DONE A FINE JOB WITH TEMPS LAST FEW RUNS...AND 23/12Z
NUMBERS LOOK GOOD.

JKL

In the hours before

Local storm report, Aug 23, 5:08 PM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
508 PM CDT SUN AUG 23 1998

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

0459 PM    BRILLION                  WI   WIND DAMAGE
08/23/98   CALUMET                        8 INCH TREE BRANCHES DOWN

0504 PM    1 NE HILBERT              WI   .75 INCH HAIL
08/23/98   CALUMET

PLH

Local storm report, Aug 23, 5:08 PM CDT, 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
508 PM CDT SUN AUG 23 1998

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

0459 PM    BRILLION                  WI   WIND DAMAGE
08/23/98   CALUMET                        8 INCH TREE BRANCHES DOWN

0504 PM    1 NE HILBERT              WI   .75 INCH HAIL
08/23/98   CALUMET

PLH

Local storm report, Aug 23, 5:29 PM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
529 PM CDT SUN AUG 23 1998

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

0528 PM    VALDERS                   WI   60 MPH WIND GUST
08/23/98   MANITOWOC

PLH

Local storm report, Aug 23, 5:29 PM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
529 PM CDT SUN AUG 23 1998

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

0528 PM    VALDERS                   WI   60 MPH WIND GUST
08/23/98   MANITOWOC

PLH

Local storm report, Aug 23, 5:35 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
535 PM CDT SUN AUG 23 1998

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

0526 PM    CATO                      WI   60 MPH WIND GUST
08/23/98   MANITOWOC

PLH

Local storm report, Aug 23, 5:35 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
535 PM CDT SUN AUG 23 1998

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

0526 PM    CATO                      WI   60 MPH WIND GUST
08/23/98   MANITOWOC

PLH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 22, 8:54 PM CDT	Severe Thunderstorm Warning	GRB	Door, Kewaunee	66 min
Aug 23, 2:56 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Waupaca	64 min
Aug 23, 3:34 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie	86 min
Aug 23, 3:43 PM CDT	Tornado Warning	GRB	Waupaca	32 min
Aug 23, 3:55 PM CDT	Tornado Warning	GRB	Outagamie	50 min
Aug 23, 4:13 PM CDT	Tornado Warning	GRB	Waupaca	32 min
Aug 23, 4:19 PM CDT	Tornado Warning	GRB	Calumet, Winnebago	56 min
Aug 23, 4:45 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie	15 min
Aug 23, 4:49 PM CDT	Tornado Warning	GRB	Manitowoc	56 min
Aug 23, 5:15 PM CDT	Severe Thunderstorm Warning	GRB	Calumet	45 min
Aug 23, 5:15 PM CDT	Severe Thunderstorm Warning	GRB	Marinette	30 min
Aug 23, 6:19 PM CDT	Tornado Warning	GRB	Door	41 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.