Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 86, NWS Green Bay, WI

August 1, 2002Door County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Aug 1, 2002, 7:51 AM CDT for Door County, Wisconsin. It was in force for 39 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: Aug 1, 2002, 7:51 AM CDT (12:51 UTC)
Expired: Aug 1, 2002, 8:30 AM CDT
In force: 39 min
Issued by: NWS Green Bay, WI
Area: Counties, with a storm outline in the text

County Door County, WI

The radar

The Marquette radar (KMQT), 131 km from the middle of the area, began a volume at 12:51 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 nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 0.9 hours before the alert went out and 141 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: 2319 J/kg
Mixed-layer CIN: -189 J/kg
Mixed-layer LCL: 922 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 198 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.7

Open this sounding in Storm Lab

The text

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

243 
WUUS53 KGRB 011251
SVRGRB
WIC029-011330-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
751 AM CDT THU AUG 1 2002

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN DOOR COUNTY IN WISCONSIN

* UNTIL 830 AM CDT

* AT 751 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  SEVERE THUNDERSTORM WITH STRONG WINDS AND HAIL. THE STORM WAS
  LOCATED 16 MILES NORTHWEST OF WASHINGTON ISLAND. THAT PLACES IT 39
  MILES NORTHEAST OF MARINETTE. IT WAS MOVING SOUTHEAST AT 35 MPH.

* SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORM INCLUDE...
  WASHINGTON ISLAND BY 810 AM CDT.

IF YOU ARE IN THE WARNED AREA...PREPARE FOR WINDS IN EXCESS OF 60
MPH...HAIL...AND DEADLY LIGHTNING. SEEK SHELTER IMMEDIATELY.

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

LAT...LON 4566 8711 4553 8728 4508 8667 4526 8643

KIECKBUSCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 5:12 AM CDT	Severe Thunderstorm Warning	GRB	Vilas	48 min
Aug 1, 5:35 AM CDT	Severe Thunderstorm Warning	GRB	Florence, Forest	55 min
Aug 1, 7:51 AM CDT	Special Marine Warning	GRB		84 min
Aug 1, 7:51 AM CDT	Special Marine Warning	GRB		84 min
Aug 1, 8:26 AM CDT	Severe Thunderstorm Warning	GRB	Lincoln, Oneida	64 min
Aug 1, 9:31 AM CDT	Special Marine Warning	GRB		29 min
Aug 1, 10:05 AM CDT	Severe Thunderstorm Warning	GRB	Forest, Marinette	40 min
Aug 1, 10:18 AM CDT	Special Marine Warning	GRB		117 min
Aug 1, 10:18 AM CDT	Special Marine Warning	GRB		117 min
Aug 1, 10:58 AM CDT	Severe Thunderstorm Warning	GRB	Door	47 min
Aug 1, 10:59 AM CDT	Severe Thunderstorm Warning	GRB	Vilas	61 min
Aug 1, 12:04 PM CDT	Severe Thunderstorm Warning	GRB	Vilas	56 min
Aug 1, 12:40 PM CDT	Severe Thunderstorm Warning	GRB	Forest, Oneida	50 min
Aug 1, 3:21 PM CDT	Special Marine Warning	GRB		114 min
Aug 1, 3:21 PM CDT	Special Marine Warning	GRB		114 min
Aug 1, 3:21 PM CDT	Special Marine Warning	GRB		114 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2002 Every severe thunderstorm warning 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.