Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 46, NWS Green Bay, WI

July 31, 2003Langlade County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 31, 2003, 6:27 PM CDT for Langlade 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 outline as issued.

The facts

Issued: Jul 31, 2003, 6:27 PM CDT (23:27 UTC)
Expired: Jul 31, 2003, 7:00 PM CDT
In force: 33 min
Issued by: NWS Green Bay, WI
Area: Counties, with a storm outline in the text

County Langlade County, WI

The radar

The Green Bay radar (KGRB), 111 km from the middle of the area, began a volume at 23:28 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.5 hours before the alert went out and 113 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: 502 J/kg
Mixed-layer CIN: -116 J/kg
Mixed-layer LCL: 856 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 136 m²/s²
0-3 km storm-relative helicity: 135 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.

439 
WUUS53 KGRB 312327
SVRGRB
WIC067-010000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
626 PM CDT THU JUL 31 2003

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN LANGLADE COUNTY IN WISCONSIN

* UNTIL 700 PM CDT

* AT 626 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM WITH HAIL UP TO 1 INCH IN DIAMETER. THE STORM
  WAS LOCATED 5 MILES SOUTHWEST OF PICKEREL. THAT PLACES IT 14 MILES
  NORTHEAST OF ANTIGO. IT WAS MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LILY AROUND 635 PM
  HOLLISTER AROUND 640 PM

IF YOU ARE IN THE WARNED AREA...PREPARE FOR HAIL AND DEADLY
LIGHTNING. SEEK SHELTER IMMEDIATELY.

CAMPERS AND OTHERS SHOULD SEEK SHELTER IN A STURDY BUILDING
IMMEDIATELY.

LAT...LON 4537 8910 4521 8906 4524 8869 4537 8868

$$

KIECKBUSCH

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 31, 3:15 PM CDT, 3 hours 12 minutes earlier.

Area forecast discussion, Jul 31, 3:15 PM CDT, 3 hours 12 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREEN BAY WI
315 PM CDT THU JUL 31 2003

HEAVY RAINFALL/SVR THREAT FOR TONIGHT...AND PRECIP TRENDS FOR THE REST
OF THE WEEK ARE THE MAIN FCST CONCERNS.

WV IMAGERY SHOWED THE STRONG UPPER LOW OVER FAR NC MN...WITH A POTENT
VORT MOVG INTO FAR NW WI. AT THE SFC...A WELL DEFINED BOUNDARY EXTENDED
FROM LOW PRESSURE IN NC IA NEWD THROUGH SW AND EC WI. SCT TSTMS...WITH
HEAVY RAINFALL AND ISOLD SVR HAIL/WIND WERE DEVELOPING NEAR THIS
BOUNDARY...MAINLY SOUTH OF GRB CWA. ANOTHER BATCH OF STG/SVR STORMS
CONTINUED TO DEVELOP OVER NC/NE WI...AHEAD OF THE APPROACHING VORT.

CURRENT THINKING IS THAT FLOOD WATCH CAN BE CANCELLED FOR EC WI...WITH
MAIN HVY RAINFALL THREAT STAYING TO OUR SOUTH. CURRENT CONVECTION
SHOULD CAUSE THE BOUNDARY TO SAG FARTHER SOUTH DURING THE LATE
AFT/EVG...KEEPING THE BEST CORE OF HVY RAINFALL OVER SC/SE WI. SOME
POCKETS OF BRIEF HEAVY RAINFALL MAY OCCUR IN THE CURRENT FLOOD
WATCH AREA THROUGH EALY EVG...AND THIS WILL NEED TO BE MONITORED. ISOLD
SVR THREAT WILL LINGER ACROSS THE ENTIRE CWA INTO THE EARLY EVG HOURS AS
THE UPPER TROF PIVOTS THROUGH N WI. EXPECT CONVECTION TO DECREASE IN
COVERAGE AND INTENSITY LATER THIS EVG.

THE UPPER LOW WILL CONTINUE TO THE AFFECT THE RGN INTO AT LEAST EARLY
NEXT WEEK...WITH STRONG BLOCKING NOTED UPSTREAM OVER THE NE US. WILL
KEEP TSTMS IN THE FCST THROUGH MONDAY...AND SCT AFT SHOWERS FOR
TUES/WEDS...AND TRY FOR A DRY DAY ON THURS.

STAYED CLOSE TO GUIDANCE TEMPS.

.GRB...NONE.

KIECKBUSCH
WWW.CRH.NOAA.GOV/GRB

Hazardous weather outlook, Jul 31, 6:15 AM CDT, 12 hours 12 minutes before

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-011115-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREEN BAY WI
615 AM CDT THU JUL 31 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH-CENTRAL AND NORTHEAST
WISCONSIN.

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS NORTH-CENTRAL
AND NORTHEAST WISCONSIN THROUGH TONIGHT. AN APPROACHING COLD FRONT AND
UPPER LEVEL DISTURBANCE WILL BRING SHOWERS AND THUNDERSTORMS TO THE AREA
THROUGH TONIGHT. THE STRONGEST STORMS ARE EXPECTED LATER THIS AFTERNOON
AND THIS EVENING...WHICH COULD BE ACCOMPANIED BY LARGE HAIL AND DAMAGING
WINDS. ANY THUNDERSTORM THAT DOES DEVELOP WILL BE CAPABLE OF PRODUCING
TORRENTIAL RAINS. THEREFORE...A FLOOD WATCH IS IN EFFECT FOR PORTIONS OF
NORTHEAST AND CENTRAL WISCONSIN WHERE FLOODING RAINS WERE REPORTED
YESTERDAY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

A STRONG UPPER LEVEL CIRCULATION IS EXPECTED TO MOVE INTO THE NORTHERN
PLAINS INTO THE WESTERN GREAT LAKES TODAY...AND THEN LINGER THROUGHOUT
THE WEEKEND. THERE WILL BE A CHANCE OF SHOWERS AND THUNDERSTORMS EACH
DAY THROUGH THE MIDDLE PART OF NEXT WEEK. ISOLATED SEVERE THUNDERSTORMS
WITH LARGE HAIL AND DAMAGING WINDS ARE POSSIBLE...MAINLY DURING THE
AFTERNOON AND EARLY EVENING HOURS.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ACTIVATION MAY BE NEEDED LATER TODAY OR TONIGHT.

ECKBERG
WWW.CRH.NOAA.GOV/GRB

In the hours before

Local storm report, Jul 31, 3:47 PM CDT, 2 hours 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
347 PM CDT THU JUL 31 2003

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

0250 PM    BRYANT                    WI   .75 INCH HAIL
07/31/03   LANGLADE                       REPORTED BY PUBLIC.

JKL/GRA

Local storm report, Jul 31, 3:54 PM CDT, 2 hours 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
354 PM CDT THU JUL 31 2003

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

0345 PM    WHITE LAKE                WI   WIND DAMAGE
07/31/03   LANGLADE                       STRONG WINDS KNOCKING TREE
                                          LIMBS DOWN. REPORT FROM SHERIFF.

JKL

Special weather statement, Jul 31, 4:00 PM CDT, 2 hours 27 minutes before

WIZ035>040-045-048>050-312300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
400 PM CDT THU JUL 31 2003

...SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR EAST-CENTRAL
WISCONSIN UNTIL 600 PM...

SCATTERED THUNDERSTORMS CONTINUE TO MOVE ACROSS EAST-CENTRAL AND
NORTHEAST WISCONSIN.

STORMS OVER CENTRAL WISCONSIN HAD MOVED EAST OF THE WATCH AREA.
THEREFORE...THE WATCH HAS BEEN CANCELED FOR WOOD...PORTAGE...WAUPACA...
AND WAUSHARA COUNTIES.

STAY TUNED TO NOAA WEATHER RADIO LATE THIS AFTERNOON FOR THE LATEST
WEATHER INFORMATION.

JKL
WWW.CRH.NOAA.GOV/GRB

Local storm report, Jul 31, 4:01 PM CDT, 2 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
401 PM CDT THU JUL 31 2003

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

0345 PM    3 NE WHITE LAKE           WI   1.75 INCH HAIL
07/31/03   LANGLADE                       GOLF BALL SIZE HAIL AND
                                          TREES DOWN.  REPORT FROM
                                          COOP OBSERVER.

JKL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 7:17 PM CDT	Flash Flood Warning	GRB	Brown, Calumet, Manitowoc	3 hr
Jul 30, 7:27 PM CDT	Flash Flood Warning	GRB	Winnebago	3 hr
Jul 30, 8:18 PM CDT	Flash Flood Warning	GRB	Brown, Outagamie	3 hr
Jul 31, 1:46 PM CDT	Severe Thunderstorm Warning	GRB	Waushara	44 min
Jul 31, 2:04 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	41 min
Jul 31, 2:19 PM CDT	Severe Thunderstorm Warning	GRB	Manitowoc	41 min
Jul 31, 2:41 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	49 min
Jul 31, 3:27 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	48 min
Jul 31, 3:51 PM CDT	Severe Thunderstorm Warning	GRB	Oconto	54 min
Jul 31, 4:06 PM CDT	Severe Thunderstorm Warning	GRB	Marinette	54 min
Jul 31, 4:21 PM CDT	Special Marine Warning	GRB		54 min
Jul 31, 4:21 PM CDT	Special Marine Warning	GRB		54 min
Jul 31, 5:31 PM CDT	Special Marine Warning	GRB		74 min
Jul 31, 6:43 PM CDT	Special Marine Warning	GRB		47 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2003 Every severe thunderstorm warning in 2003

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; radar from the NEXRAD Level II archive.