Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 48, NWS Green Bay, WI

July 16, 1997Waushara County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 16, 1997, 5:06 PM CDT for Waushara County, Wisconsin. It was in force for 79 min. 6 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: Jul 16, 1997, 5:06 PM CDT (22:06 UTC)
Expired: Jul 16, 1997, 6:25 PM CDT
In force: 79 min
Issued by: NWS Green Bay, WI
Area: Whole counties

County Waushara County, WI

The radar

The Green Bay radar (KGRB), 100 km from the middle of the area, began a volume at 22:07 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.

What was reported inside it

Time	Report	Where
Jul 16, 5:41 PM CDT	Tornado F0	Hancock, WI
Jul 16, 5:45 PM CDT	Hail 0.75	Plainfield, WI
Jul 16, 5:52 PM CDT	Hail 0.75	Wautoma, WI
Jul 16, 6:10 PM CDT	Thunderstorm Wind	Wautoma, WI
Jul 16, 6:13 PM CDT	Hail 0.75	Redgranite, WI
Jul 16, 6:30 PM CDT	Hail 1	West Bloomfield, 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.

Issued	Product	Office	Lasted
Jul 16, 1:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.1 hours before the alert went out and 100 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: 2398 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 948 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGRB 162208 RRA
SVRGRB
WIC137-162325-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
506 PM CDT WED JUL 16 1997

* SEVERE THUNDERSTORM WARNING FOR
  WAUSHARA COUNTY - CENTRAL WISCONSIN

* UNTIL 625 PM CDT
 
* SOME LOCATIONS AFFECTED
  PLAINFIELD
  HANCOCK
  WAUTOMA

* AT 505 PM NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF WISCONSIN RAPIDS. THE
  STORM WAS MOVING SOUTHEAST AT 35 MPH.

* THE STORM WILL BE NEAR PLAINFIELD AND HACOCK BY 530 PM...AN
  WAUTOMA BY 540 PM.

THIS IS A DANGEROUS STORM WITH WIND GUSTS OVER 60 MPH AND LARGE
HAIL. MOVE TO A STURDY SHELTER.  HAIL UP TO AN INCH IN DIAMETER WAS$
REPORTED WITH THIS STORM.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE WARNING.
STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL WEATHER INFORMATION.

JKL/EB

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 Jul 16, 4:21 PM CDT, 45 minutes earlier.

Area forecast discussion, Jul 16, 4:21 PM CDT, 45 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
420 PM CDT WED JUL 16 1997

OBVIOUS FCST DILEMA FOR TNGT CENTERS AROUND TSTM THREAT AND SVR
POTENTIAL.

18Z SFC ANALYSIS HAS SFC LOW CENTERED OVR SOUTH-CNTRL SD WITH WRMFNT
REACHING NEWD INTO NORTH-CNTRL MN AND THEN EWD ACROSS FAR NRN WI. 70+
DEW PTS CONT TO POOL ALONG AND JUST SOUTH OF THIS WRMFNT WHILE CAPES
REMAIN AROUND THE 4000 J/KG MARK. CONFLUENT FLOW REMAIN AT LOW-LVLS
PROVIDING COVERGENCE ALONG THE WRMFNT FOR STORMS TO DVLP ON. MEAN FLOW
ALOFT IS WNW-ESE SO EXPECT STORMS TO CONT TO PROPAGATE TO THE E-SE THRU
THE NGT. ENUF INSTABILITY...MSTR AND LIFT ALONG FNT TO KEEP MENTION OF
SVR THRU THE NGT. IN FACT...SPC HAS CNTRL AND EAST-CNTRL WI IN MDT RISK
OF SVR TOMORROW AS WELL.

TEMPS TNGT MAY VARY TO A POINT DEPENDING ON RAIN-COOLED AIR VERSUS AREAS
THAT REMAIN DRY OVRNGT. WL PLAY TEMPS CLOSE TO GUID FOR NOW BUT WITH A
RANGE.

NO TIME TO DECIPHER MDL PREFERENCE.

KALLAS

In the hours before

Local storm report, Jul 16, 4:58 PM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
458 PM CDT WED JUL 16 1997

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

0440 PM    MERRILL                   WI   WIND DAMAGE
07/16/97   LINCOLN                        4 BARNS DOWN JUST SE OF
                                          TOWN.  PINE RIVER TOWNSHIP.

RF

Local storm report, Jul 16, 4:59 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
458 PM CDT WED JUL 16 1997

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

0440 PM    MERRILL                   WI   WIND DAMAGE
07/16/97   LINCOLN                        4 BARNS DOWN JUST SE OF
                                          TOWN.  PINE RIVER TOWNSHIP.

RF

Local storm report, Jul 16, 5:00 PM CDT, 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
500 PM CDT WED JUL 16 1997

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

0440 PM    WITTENBERG                WI   WIND DAMAGE
07/16/97   SHAWANO                        NUMBEROUS TREES DOWN IN
                                          TOWN AND ALL OVER THE
                                          COUNTY.

RF

Local storm report, Jul 16, 5:01 PM CDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
500 PM CDT WED JUL 16 1997

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

0440 PM    WITTENBERG                WI   WIND DAMAGE
07/16/97   SHAWANO                        NUMBEROUS TREES DOWN IN
                                          TOWN AND ALL OVER THE
                                          COUNTY.

RF

Local storm report, Jul 16, 5:03 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
503 PM CDT WED JUL 16 1997

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

0445 PM    AUBONDALE                 WI   TORNADO
07/16/97   WOOD                           BRIEF TOUCHDOWN NE OF TOWN

RF

Local storm report, Jul 16, 5:04 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
503 PM CDT WED JUL 16 1997

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

0445 PM    AUBONDALE                 WI   TORNADO
07/16/97   WOOD                           BRIEF TOUCHDOWN NE OF TOWN

RF

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 6:49 AM CDT	Severe Thunderstorm Warning	GRB	Oneida, Vilas	61 min
Jul 16, 12:30 PM CDT	Severe Thunderstorm Warning	GRB	Vilas	75 min
Jul 16, 1:05 PM CDT	Severe Thunderstorm Warning	GRB	Oneida	75 min
Jul 16, 1:56 PM CDT	Severe Thunderstorm Warning	GRB	Forest, Oneida	79 min
Jul 16, 2:08 PM CDT	Tornado Warning	GRB	Oneida	47 min
Jul 16, 2:20 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln	80 min
Jul 16, 2:31 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	74 min
Jul 16, 3:10 PM CDT	Tornado Warning	GRB	Lincoln	35 min
Jul 16, 3:15 PM CDT	Tornado Warning	GRB	Langlade	35 min
Jul 16, 3:29 PM CDT	Tornado Warning	GRB	Marathon	46 min
Jul 16, 3:43 PM CDT	Severe Thunderstorm Warning	GRB	Menominee	47 min
Jul 16, 3:52 PM CDT	Tornado Warning	GRB	Shawano	48 min
Jul 16, 3:59 PM CDT	Tornado Warning	GRB	Menominee	36 min
Jul 16, 4:11 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln	79 min
Jul 16, 4:14 PM CDT	Tornado Warning	GRB	Marathon	36 min
Jul 16, 4:37 PM CDT	Tornado Warning	GRB	Portage, Waupaca	48 min
Jul 16, 4:40 PM CDT	Tornado Warning	GRB	Shawano	35 min
Jul 16, 4:50 PM CDT	Tornado Warning	GRB	Portage, Wood	45 min
Jul 16, 4:56 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Outagamie	79 min
Jul 16, 5:25 PM CDT	Severe Thunderstorm Warning	GRB	Calumet, Winnebago	65 min
Jul 16, 5:39 PM CDT	Tornado Warning	GRB	Waushara	36 min
Jul 16, 6:00 PM CDT	Severe Thunderstorm Warning	GRB	Manitowoc	80 min
Jul 16, 6:26 PM CDT	Severe Thunderstorm Warning	GRB	Waushara	64 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1997 Every severe thunderstorm warning in 1997

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; radar from the NEXRAD Level II archive.