Alert archive / Wisconsin / Flash Flood Warnings in 2000

Flash Flood Warning 10, NWS Green Bay, WI

September 11, 2000Marathon County, Wisconsin

NWS Green Bay, WI issued this flash flood warning at Sep 11, 2000, 3:45 AM CDT for Marathon County, Wisconsin. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 11, 2000, 3:45 AM CDT (08:45 UTC)
Expired: Sep 11, 2000, 6:45 AM CDT
In force: 3 hr
Issued by: NWS Green Bay, WI
Area: Whole counties

County Marathon County, WI

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 8.8 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: 2296 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 837 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 4.2

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KGRB 110848
FFWGRB
WIC073-111145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
345 AM CDT MON SEP 11 2000

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MARATHON COUNTY IN WISCONSIN

* UNTIL 645 AM CDT

* AT 345 AM CDT NATIONAL WEATHER SERVICE RADAR DETECTED THUNDERSTORMS
  WITH VERY HEAVY RAIN. THE STRONGEST STORMS EXTENDED FROM 20 MILES 
  SOUTHEAST OF WAUSAU TO 30 MILES SOUTHWEST OF WAUSAU. OTHER 
  THUNDERSTORMS HOWEVER STILL COVERED THE REST OF THE COUNTY. THE 
  STORMS CONTINUED TO EXTEND WEST INTO FAR WEST CENTRAL WISCONSIN 
  AND WILL CONTINUE TO MOVE EAST OVER AREAS OF MARATHON COUNTY THAT 
  HAVE ALREADY RECIEVED HEAVY RAIN.

* RADAR ESTIMATES INDICATE THAT UP TO 5 INCHES OF RAIN HAS FALLEN.  
  SOME LOCATIONS WHICH ARE AT HIGH RISK OF FLASH FLOODING   
  INCLUDE...RINGLE...WAUSAU...MOSINEE...AND STRATFORD.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND QUICKLY. DO NOT
ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY
FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS...ABANDON IT
IMMEDIATELY AND SEEK HIGHER GROUND.

DAK

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, 5:15 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln, Oneida	60 min
Sep 11, 6:24 PM CDT	Severe Thunderstorm Warning	GRB	Florence, Forest	36 min
Sep 11, 6:44 PM CDT	Severe Thunderstorm Warning	GRB	Wood	61 min

Nearby

Flash Flood Warnings in Wisconsin, 2000 Every flash flood 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; the sounding from the Mesonet's radiosonde archive.