Alert archive / Wisconsin / Tornado Warnings in 2002

Tornado Warning 13, NWS Green Bay, WI

July 30, 2002Langlade County, Lincoln County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jul 30, 2002, 7:28 PM CDT for Langlade County, Lincoln County, Wisconsin. It was in force for 32 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 30, 2002, 7:28 PM CDT (00:28 UTC)
Expired: Jul 30, 2002, 8:00 PM CDT
In force: 32 min
Issued by: NWS Green Bay, WI
Area: Counties, with a storm outline in the text

Counties Langlade County, WI, Lincoln County, WI

The radar

The Green Bay radar (KGRB), 137 km from the middle of the area, began a volume at 00:28 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.

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 30, 5:35 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.5 hours before the alert went out and 139 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: 3877 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1398 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 164 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.0

Open this sounding in Storm Lab

The text

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

565 
WFUS53 KGRB 310028
TORGRB
WIC067-069-310100-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
723 PM CDT TUE JUL 30 2002

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* TORNADO WARNING FOR...
  LANGLADE COUNTY IN WISCONSIN
  WESTERN LINCOLN COUNTY IN WISCONSIN

* UNTIL 800 PM CDT

* AT 723 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED 
  A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 9 MILES       
  NORTHEAST OF MERRILL. THE STORM WAS MOVING SOUTHEAST AT 30 MPH.

* SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORM INCLUDE...  
  DOERING 730 PM CDT. 
  WESTERN LANGLADE COUNTY
  
  EXTREME SOUTHEAST LINCOLN COUNTY
    
THE STORM WILL ALSO PRODUCE WIDESPREAD DAMAGING WINDS. THIS WARNING 
REPLACES THE SEVERE THUNDERSTORM WARNING FOR LINCOLN. A SEVERE 
THUNDERSTORM WARNING REMAINS IN EFFECT FOR LANGLADE COUNTY. 

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

LAT...LON 4535 8960 4517 8963 4513 8926 4541 8914

ECKBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 30, 7:12 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Wood	63 min
Jul 30, 7:16 PM CDT	Severe Thunderstorm Warning	GRB	Langlade	59 min
Jul 30, 7:44 PM CDT	Tornado Warning	GRB	Shawano	46 min
Jul 30, 7:55 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln	35 min
Jul 30, 8:03 PM CDT	Severe Thunderstorm Warning	GRB	Menominee	42 min
Jul 30, 8:11 PM CDT	Severe Thunderstorm Warning	GRB	Oconto	49 min
Jul 30, 8:15 PM CDT	Special Marine Warning	GRB		2 hr
Jul 30, 8:15 PM CDT	Special Marine Warning	GRB		2 hr
Jul 30, 8:15 PM CDT	Special Marine Warning	GRB		2 hr
Jul 30, 8:26 PM CDT	Severe Thunderstorm Warning	GRB	Shawano	49 min
Jul 30, 8:29 PM CDT	Severe Thunderstorm Warning	GRB	Waushara	46 min
Jul 30, 8:46 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Vilas	44 min
Jul 30, 8:51 PM CDT	Severe Thunderstorm Warning	GRB	Winnebago	39 min
Jul 30, 8:56 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie	34 min
Jul 30, 9:17 PM CDT	Severe Thunderstorm Warning	GRB	Calumet	43 min
Jul 30, 9:25 PM CDT	Special Marine Warning	GRB		95 min
Jul 30, 9:25 PM CDT	Special Marine Warning	GRB		95 min
Jul 30, 9:29 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Manitowoc	46 min
Jul 30, 9:43 PM CDT	Severe Thunderstorm Warning	GRB	Door	32 min
Jul 31, 1:02 PM CDT	Severe Thunderstorm Warning	GRB	Oneida, Vilas	58 min

Nearby

Tornado Warnings in Wisconsin, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.