Alert archive / Wisconsin / Tornado Warnings in 2008

Tornado Warning 8, NWS Green Bay, WI

July 29, 2008Lincoln County, Marathon County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jul 29, 2008, 4:32 PM CDT for Lincoln County, Marathon County, Wisconsin. It was in force for 28 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 29, 2008, 4:32 PM CDT (21:32 UTC)
Expired: Jul 29, 2008, 5:00 PM CDT
In force: 28 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon

Counties Lincoln County, WI, Marathon County, WI

The radar

The Green Bay radar (KGRB), 129 km from the middle of the area, began a volume at 21:34 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	Remark
Jul 29, 4:41 PM CDT	TORNADO	5 Nne Brokaw, WI	ANOTHER TOUCHDOWN. REPORTED BY PUBLIC.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 29, 3:24 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.5 hours before the alert went out and 131 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: 1690 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KGRB 292132
TORGRB
WIC069-073-292200-
/O.NEW.KGRB.TO.W.0008.080729T2132Z-080729T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
432 PM CDT TUE JUL 29 2008

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* TORNADO WARNING FOR...
  NORTH CENTRAL MARATHON COUNTY IN CENTRAL WISCONSIN...
  EXTREME SOUTHEASTERN LINCOLN COUNTY IN NORTH CENTRAL WISCONSIN...

* UNTIL 500 PM CDT

* AT 426 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR
  PINE RIVER...OR 9 MILES NORTH OF WAUSAU...MOVING EAST AT 25 MPH.

* THE TORNADO WILL AFFECT...
  LOCATIONS ALONG THE MARATHON AND LINCOLN COUNTY LINE THROUGH 450 PM

MOVE TO A BASEMENT OR SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
BUILDING.

LAT...LON 4515 8975 4514 8943 4512 8942 4512 8932
      4512 8931 4504 8931 4504 8976
TIME...MOT...LOC 2131Z 273DEG 22KT 4509 8961

$$

SKOWRONSKI

2 follow-up statements

000 
WWUS53 KGRB 292142
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
442 PM CDT TUE JUL 29 2008

WIC069-073-292200-
/O.CON.KGRB.TO.W.0008.000000T0000Z-080729T2200Z/
LINCOLN-MARATHON-
439 PM CDT TUE JUL 29 2008

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR NORTH
CENTRAL MARATHON AND EXTREME SOUTHEASTERN LINCOLN COUNTIES...

AT 434 PM...THE STORM THAT PRODUCED THE TORNADO WAS LOCATED JUST 
SOUTHEAST OF PINE RIVER...OR 9 MILES NORTH OF WAUSAU. IT WAS MOVING 
EAST AT 25 MPH. SPOTTERS WERE NO LONGER OBSERVING A TORNADO...BUT 
THE PARENT THUNDERSTORM REMAINED QUITE STRONG AND COULD PRODUCE 
ANOTHER TORNADO. THE STORM WILL MOVE EAST ALONG THE MARATHON LINCOLN 
COUNTY LINE. 

IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER IMMEDIATELY. 
IF NO UNDERGROUND SHELTER IS AVAILABLE...MOVE TO AN INTERIOR ROOM ON 
THE LOWEST FLOOR.

LAT...LON 4515 8966 4514 8943 4512 8942 4512 8932
      4512 8931 4504 8931 4504 8968
TIME...MOT...LOC 2139Z 273DEG 22KT 4509 8954

$$

SKOWRONSKI

000 
WWUS53 KGRB 292159
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
459 PM CDT TUE JUL 29 2008

WIC069-073-292207-
/O.EXP.KGRB.TO.W.0008.000000T0000Z-080729T2200Z/
LINCOLN-MARATHON-
457 PM CDT TUE JUL 29 2008

...THE TORNADO WARNING FOR NORTH CENTRAL MARATHON AND EXTREME
SOUTHEASTERN LINCOLN COUNTIES WILL EXPIRE AT 500 PM CDT...

THE THUNDERSTORM THAT PRODUCED THE TORNADO OVER EXTREME NORTHERN 
MARATHON COUNTY HAD WEAKENED. SPOTTERS CONTINUED TO MONITOR THE 
STORM...AND HAVE NOT REPORTED A TORNADO SINCE 441 PM. AS A 
RESULT...THE TORNADO WARNING WILL EXPIRE AT 500 PM AND WILL NOT BE 
RE-ISSUED. 

LAT...LON 4515 8966 4514 8943 4512 8942 4512 8932
      4512 8931 4504 8931 4504 8968
TIME...MOT...LOC 2157Z 273DEG 22KT 4508 8938

$$

SKOWRONSKI

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 9:51 AM CDT	Severe Thunderstorm Warning	GRB	Lincoln	26 min
Jul 29, 4:35 PM CDT	Severe Thunderstorm Warning	GRB	Forest, Langlade, Oneida	40 min
Jul 29, 4:37 PM CDT	Severe Thunderstorm Warning	GRB	Wood	25 min
Jul 29, 5:07 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln, Oneida	38 min
Jul 29, 5:13 PM CDT	Severe Thunderstorm Warning	GRB	Forest	47 min
Jul 29, 5:26 PM CDT	Tornado Warning	GRB	Forest	34 min
Jul 29, 5:58 PM CDT	Tornado Warning	GRB	Forest, Marinette	17 min
Jul 29, 6:29 PM CDT	Severe Thunderstorm Warning	GRB	Oconto	20 min

Nearby

Tornado Warnings in Wisconsin, 2008 Every tornado warning in 2008 Tornadoes in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.