Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 9, NWS Green Bay, WI

March 29, 1998Kewaunee County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Mar 29, 1998, 12:50 PM CST for Kewaunee County, Wisconsin. It was in force for 50 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: Mar 29, 1998, 12:50 PM CST (18:50 UTC)
Expired: Mar 29, 1998, 1:40 PM CST
In force: 50 min
Issued by: NWS Green Bay, WI
Area: Whole counties

County Kewaunee County, WI

What was reported inside it

Time	Report	Where	Remark
Mar 29, 1:10 PM CST	Hail 1	Norman, 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, 6.8 hours before the alert went out and 46 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 987 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 247 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.

686 
WUUS1 KGRB 291851 RRA
SVRGRB
WIC061-291940-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
1250 PM CST SUN MAR 29 1998

* SEVERE THUNDERSTORM WARNING FOR
  SOUTHERN KEWAUNEE COUNTY - NORTHEASTERN WISCONSIN

* UNTIL 140 PM CST
 
* SOME LOCATIONS AFFECTED
  NORMAN

* AT 1250 PM NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM 15 MILES SOUTHEAST OF GREEN BAY...NEAR
  DENMARK. THE STORM WAS MOVING EAST AT 35 MPH AND HAS PRODUCED
  ORANGE SIZE HAIL IN DENMARK.

* THE STORM WILL BE NEAR NORMAN BY 110 PM.

THIS IS A DANGEROUS STORM WITH HAIL LARGER THAN AN INCH IN
DIAMETER. MOVE TO A STURDY SHELTER.

JKL/APK

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 Mar 29, 7:45 AM CST, 5 hours 5 minutes earlier.

Area forecast discussion, Mar 29, 7:45 AM CST, 5 hours 5 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
745 AM CST SUN MAR 29 1998

12Z UPR AIR DATA CONTINUES TO SUPPORT THE THREAT OF SVR WX ACRS THE AREA
LATER TDA. 12Z TOP SOUNDING HAD LI OF -7 AND THE ATM IN THE CENTRAL US
HAS VERY STEEP MID-LVL LAPSE RATES. STG TSTMS WERE DEVELOPING ACRS IA
AND SE MN IN RGN OF STG ISENTROPIC LIFT. THIS APPEARS TO BE AT THE NOSE
OF THE LLJ...BUT N/S ORIENTATION OF THE STORMS ALSO SUGGESTS THAT THERE
MAY BE A WK SHRTWV MOVG THROUGH THAT AREA.

ISENTROPIC LIFT ACRS WI IS MUCH WEAKER ATTM...BUT IT WILL INCR LATER
TDA. SITN IS EVOLVING PRETTY MUCH AS EXPECTED...THOUGH ONSET OF SVR
THREAT ACRS CENTRAL WI MAY OCCUR A BIT EARLIER THAN EARLIER THOUGHT.
\
JS

In the hours before

Local storm report, Mar 29, 12:03 PM CST, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1203 PM CST SUN MAR 29 1998

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

1203 PM    3 W APPLETON              WI   2 INCH HAIL
03/29/98   OUTAGAMIE

JML

Local storm report, Mar 29, 12:14 PM CST, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1214 PM CST SUN MAR 29 1998

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

1210 PM    APPLETON                  WI   1.75 INCH HAIL
03/29/98   CALUMET

JML

Local storm report, Mar 29, 12:14 PM CST, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1214 PM CST SUN MAR 29 1998

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

1210 PM    APPLETON                  WI   1.75 INCH HAIL
03/29/98   CALUMET

JML

Local storm report, Mar 29, 12:34 PM CST, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1234 PM CST SUN MAR 29 1998

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

1215 PM    DARBOY                    WI   1 INCH HAIL
03/29/98   OUTAGAMIE

1225 PM    8 S AMHERST               WI   .75 INCH HAIL
03/29/98   PORTAGE

1225 PM    ST JOHN                   WI   4 INCH HAIL
03/29/98   CALUMET

JML

Local storm report, Mar 29, 12:34 PM CST, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1234 PM CST SUN MAR 29 1998

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

1215 PM    DARBOY                    WI   1 INCH HAIL
03/29/98   OUTAGAMIE

1225 PM    8 S AMHERST               WI   .75 INCH HAIL
03/29/98   PORTAGE

1225 PM    ST JOHN                   WI   4 INCH HAIL
03/29/98   CALUMET

JML

Local storm report, Mar 29, 12:39 PM CST, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1239 PM CST SUN MAR 29 1998

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

1210 PM    3 W APPLETON              WI   2.5 INCH HAIL
03/29/98   OUTAGAMIE

JML

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 10:41 AM CST	Severe Thunderstorm Warning	GRB	Portage, Waushara	44 min
Mar 29, 11:07 AM CST	Severe Thunderstorm Warning	GRB	Waupaca	43 min
Mar 29, 11:27 AM CST	Severe Thunderstorm Warning	GRB	Waushara	33 min
Mar 29, 11:31 AM CST	Severe Thunderstorm Warning	GRB	Winnebago	49 min
Mar 29, 11:57 AM CST	Severe Thunderstorm Warning	GRB	Calumet, Outagamie	53 min
Mar 29, 12:12 PM CST	Severe Thunderstorm Warning	GRB	Brown	63 min
Mar 29, 12:29 PM CST	Severe Thunderstorm Warning	GRB	Manitowoc	61 min
Mar 29, 12:46 PM CST	Severe Thunderstorm Warning	GRB	Wood	59 min
Mar 29, 1:10 PM CST	Severe Thunderstorm Warning	GRB	Portage	40 min
Mar 29, 2:15 PM CST	Severe Thunderstorm Warning	GRB	Menominee, Shawano	45 min
Mar 29, 2:30 PM CST	Severe Thunderstorm Warning	GRB	Lincoln	45 min
Mar 29, 2:38 PM CST	Severe Thunderstorm Warning	GRB	Oconto	52 min
Mar 29, 3:00 PM CST	Severe Thunderstorm Warning	GRB	Marinette	60 min
Mar 29, 3:30 PM CST	Severe Thunderstorm Warning	GRB	Door	45 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.