Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 87, NWS Green Bay, WI

July 19, 2011Wood County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 19, 2011, 8:01 PM CDT for Wood County, Wisconsin. It was in force for 59 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 19, 2011, 8:01 PM CDT (01:01 UTC)
Expired: Jul 19, 2011, 9:00 PM CDT
In force: 59 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 80.0 mph

County Wood County, WI

The radar

The La Crosse radar (KARX), 117 km from the middle of the area, began a volume at 01:02 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.

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 19, 5:43 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.0 hours before the alert went out and 154 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: 1847 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1140 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 114 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

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

189 
WUUS53 KGRB 200101
SVRGRB
WIC141-200200-
/O.NEW.KGRB.SV.W.0087.110720T0101Z-110720T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
801 PM CDT TUE JUL 19 2011

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WOOD COUNTY IN CENTRAL WISCONSIN...

* UNTIL 900 PM CDT

* AT 755 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS TO 80 MPH.  
  THIS STORM WAS LOCATED 5 MILES SOUTHWEST OF ABBOTSFORD...OR 17 MILES 
  SOUTH OF MEDFORD...AND MOVING SOUTHEAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MARSHFIELD AROUND 820 PM CDT.
  PITTSVILLE AROUND 835 PM CDT.
  BABCOCK AROUND 850 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
BAKERVILLE...HEWITT...BETHEL...ARPIN...DEXTERVILLE AND NEKOOSA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY
LIGHTNING. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.

THIS IS A DANGEROUS THUNDERSTORM. DUE TO THE NATURE OF THESE
STORMS...THEY ARE CAPABLE OF PRODUCING ALL TYPES OF SEVERE WEATHER...
INCLUDING EXTREMELY LARGE HAIL...DESTRUCTIVE STRAIGHT LINE WINDS AND
POSSIBLY TORNADOES. MOVE QUICKLY TO A SAFE SHELTER...PREFERABLY INTO
AN INTERIOR ROOM...SUCH AS A BATHROOM OR A CLOSET...OR INTO A
BASEMENT.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4469 9032 4468 8986 4452 8984 4451 8973
      4424 8973 4424 9019 4425 9032
TIME...MOT...LOC 0100Z 336DEG 41KT 4484 9034
WIND...HAIL 80MPH <.75IN

$$

ECKBERG/BERSCH

4 follow-up statements

714 
WWUS53 KGRB 200116
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
816 PM CDT TUE JUL 19 2011

WIC141-200200-
/O.CON.KGRB.SV.W.0087.000000T0000Z-110720T0200Z/
WOOD WI-
816 PM CDT TUE JUL 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WOOD COUNTY
UNTIL 900 PM CDT...

AT 813 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DESTRUCTIVE WINDS TO 70 MPH.  THIS STORM WAS LOCATED NEAR SPENCER...
OR 27 MILES SOUTH OF MEDFORD...MOVING SOUTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MARSHFIELD AROUND 825 PM CDT.
  PITTSVILLE AROUND 845 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
BAKERVILLE...HEWITT...BETHEL...ARPIN...VESPER...DEXTERVILLE AND
NEKOOSA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY
LIGHTNING. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.

DUE TO THE NATURE OF THESE DANGEROUS STORMS...THEY ARE CAPABLE OF
PRODUCING ALL TYPES OF SEVERE WEATHER...INCLUDING EXTREMELY LARGE
HAIL...DESTRUCTIVE STRAIGHT LINE WINDS AND POSSIBLY TORNADOES. BE
PREPARED TO ACT QUICKLY SHOULD A TORNADO OCCUR OR A TORNADO WARNING
BE ISSUED.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4469 9032 4468 8986 4452 8984 4451 8973
      4424 8973 4424 9019 4425 9032
TIME...MOT...LOC 0114Z 336DEG 35KT 4475 9025
WIND...HAIL 70MPH 1.00IN

$$

ECKBERG/BERSCH

768 
WWUS53 KGRB 200135
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
835 PM CDT TUE JUL 19 2011

WIC141-200200-
/O.CON.KGRB.SV.W.0087.000000T0000Z-110720T0200Z/
WOOD WI-
835 PM CDT TUE JUL 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WOOD COUNTY
UNTIL 900 PM CDT...

AT 833 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED NEAR MARSHFIELD...OR 24 MILES
NORTHWEST OF WISCONSIN RAPIDS...MOVING SOUTHEAST AT 40 MPH. PENNY
SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  PITTSVILLE AROUND 855 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
AUBURNDALE...BETHEL...ARPIN AND VESPER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY
LIGHTNING. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4469 9032 4468 8986 4452 8984 4451 8973
      4424 8973 4424 9019 4425 9032
TIME...MOT...LOC 0135Z 336DEG 35KT 4465 9014
WIND...HAIL 60MPH 0.75IN

$$

ECKBERG/BERSCH

234 
WWUS53 KGRB 200151
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
851 PM CDT TUE JUL 19 2011

WIC141-200200-
/O.CON.KGRB.SV.W.0087.000000T0000Z-110720T0200Z/
WOOD WI-
851 PM CDT TUE JUL 19 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN WOOD
COUNTY UNTIL 900 PM CDT...

AT 844 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.  THIS STORM WAS LOCATED 7 MILES SOUTHEAST OF MARSHFIELD...OR
17 MILES NORTHWEST OF WISCONSIN RAPIDS...MOVING SOUTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  PITTSVILLE AROUND 855 PM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE VESPER.

A 50 MPH WIND GUST WAS REPORTED AT 847 PM JUST NORTH OF MARSHFIELD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY
LIGHTNING. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4468 8986 4442 8983 4446 9029 4469 9032
TIME...MOT...LOC 0150Z 336DEG 35KT 4452 9006
WIND...HAIL 60MPH <.75IN

$$

ECKBERG/BERSCH

820 
WWUS53 KGRB 200200
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
900 PM CDT TUE JUL 19 2011

WIC141-200209-
/O.EXP.KGRB.SV.W.0087.000000T0000Z-110720T0200Z/
WOOD WI-
900 PM CDT TUE JUL 19 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WOOD COUNTY WILL
EXPIRE AT 900 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM.

LAT...LON 4468 8986 4442 8983 4446 9029 4469 9032
TIME...MOT...LOC 0159Z 327DEG 24KT 4463 9004

$$

ECKBERG/BERSCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 7:29 PM CDT	Severe Thunderstorm Warning	GRB	Marathon	61 min
Jul 19, 8:30 PM CDT	Severe Thunderstorm Warning	GRB	Marathon	33 min
Jul 19, 8:41 PM CDT	Flash Flood Warning	GRB	Marathon, Portage, Wood	3 hr
Jul 19, 9:46 PM CDT	Severe Thunderstorm Warning	GRB	Portage	59 min
Jul 19, 10:01 PM CDT	Severe Thunderstorm Warning	GRB	Wood	31 min
Jul 19, 10:20 PM CDT	Severe Thunderstorm Warning	GRB	Waupaca	40 min
Jul 19, 10:21 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Wood	39 min
Jul 19, 10:49 PM CDT	Severe Thunderstorm Warning	GRB	Waushara	41 min
Jul 19, 10:56 PM CDT	Severe Thunderstorm Warning	GRB	Waupaca	34 min
Jul 19, 11:13 PM CDT	Areal Flood Advisory	GRB	Brown, Calumet, Outagamie, Waupaca, Winnebago	87 min
Jul 19, 11:58 PM CDT	Flash Flood Warning	GRB	Marathon, Portage, Wood	116 min
Jul 20, 12:13 AM CDT	Special Marine Warning	GRB		92 min
Jul 20, 4:10 AM CDT	Small Craft Advisory	GRB		23 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2011 Every severe thunderstorm warning in 2011

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.