Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 83, NWS Green Bay, WI

September 11, 2000Florence County, Forest County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Sep 11, 2000, 6:24 PM CDT for Florence County, Forest County, Wisconsin. It was in force for 36 min. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Sep 11, 2000, 6:24 PM CDT (23:24 UTC)
Expired: Sep 11, 2000, 7:00 PM CDT
In force: 36 min
Issued by: NWS Green Bay, WI
Area: Whole counties

Counties Florence County, WI, Forest County, WI

The radar

The Marquette radar (KMQT), 117 km from the middle of the area, began a volume at 23:25 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
Sep 11, 6:30 PM CDT	Thunderstorm Wind 50 E	Alvin, WI
Sep 11, 6:30 PM CDT	Hail 0.88	Nelma, WI
Sep 11, 6:30 PM CDT	Thunderstorm Wind 60 E	Crandon, WI
Sep 11, 6:35 PM CDT	Thunderstorm Wind 55 E	Long Lake, WI
Sep 11, 6:40 PM CDT	Thunderstorm Wind 50 E	Crandon, WI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 11, 5:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.4 hours before the alert went out and 405 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: 277 J/kg
Mixed-layer CIN: -297 J/kg
Mixed-layer LCL: 1331 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 172 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 
WUUS53 KGRB 112325
SVRGRB
WIC037-041-120000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
624 PM CDT MON SEP 11 2000

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FOREST COUNTY IN WISCONSIN
  FLORENCE COUNTY IN WISCONSIN

* UNTIL 700 PM CDT

* AT 624 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
  CLUSTER OF SEVERE THUNDERSTORMS WITH STRONG WINDS AND HAIL. THE
  STORMS WERE CENTERED 10 MILES NORTH OF HILES. THE STORMS WERE 
  MOVING EAST AT 30 MPH.

* SOME LOCATIONS THAT WILL BE AFFECTED BY THE STORMS INCLUDE... 
  LONG LAKE BY 630 PM CDT. 
  FLORENCE BY 645 PM CDbT. 

IF YOU ARE IN THE PATH OF THESE STORMS...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.

TH

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 11:05 PM CDT	Severe Thunderstorm Warning	GRB	Vilas	55 min
Sep 11, 12:10 AM CDT	Severe Thunderstorm Warning	GRB	Marinette	50 min
Sep 11, 12:15 AM CDT	Severe Thunderstorm Warning	GRB	Lincoln, Marathon	45 min
Sep 11, 12:21 AM CDT	Severe Thunderstorm Warning	GRB	Langlade	39 min
Sep 11, 12:29 AM CDT	Severe Thunderstorm Warning	GRB	Forest	31 min
Sep 11, 1:02 AM CDT	Severe Thunderstorm Warning	GRB	Langlade	28 min
Sep 11, 1:45 AM CDT	Flash Flood Warning	GRB	Lincoln, Marathon	2 hr
Sep 11, 3:45 AM CDT	Flash Flood Warning	GRB	Marathon	3 hr
Sep 11, 5:15 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln, Oneida	60 min
Sep 11, 6:44 PM CDT	Severe Thunderstorm Warning	GRB	Wood	61 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2000 Every severe thunderstorm warning in 2000

Sources

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