Alert archive / Wisconsin / Flash Flood Warnings in 2002

Flash Flood Warning 5, NWS Green Bay, WI

June 11, 2002Marathon County, Wisconsin

NWS Green Bay, WI issued this flash flood warning at Jun 11, 2002, 2:36 AM CDT for Marathon County, Wisconsin. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 11, 2002, 2:36 AM CDT (07:36 UTC)
Expired
Jun 11, 2002, 6:30 AM CDT
In force
4 hr
Issued by
NWS Green Bay, WI
Area
Counties, with a storm outline in the text

County Marathon County, WI

The radar

The Green Bay radar (KGRB), 143 km from the middle of the area, began a volume at 07:39 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 00:00Z, 7.6 hours before the alert went out and 145 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 00:00Z on 2002-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1055 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 2002-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 211 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1055 J/kg
Mixed-layer CIN
-72 J/kg
Mixed-layer LCL
775 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
211 m²/s²
0-3 km storm-relative helicity
245 m²/s²
Significant tornado parameter
0.6
Supercell composite
4.8

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KGRB 110736
FFWGRB
WIC073-111130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
235 AM CDT TUE JUN 11 2002

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

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

* UNTIL 630 AM CDT

* AT 230 AM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED      
  THUNDERSTORMS WITH TORRENTIAL RAIN. THE STORMS WERE LOCATED FROM
  LITTLE CHICAGO TO MARATHON CITY TO EVERGREEEN. THE CLUSTER OF 
  THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MPH. 

* RADAR ESTIMATES INDICATED THAT UP TO 3 INCHES OF RAIN HAD FALLEN IN
  DURING THE PAST HOUR...WITH ADDITIONAL RAINFALL TOTALS OF AN INCH OR
  TWO FROM LAST EVENING. A SHERIFF REPORTED WATER 2 TO 3 INCHES DEEP IN
  THE TOWN OF EDGAR AT 220 AM THIS MORNING. AN ADDITIONAL 1 TO 2 INCHES
  OF RAIN IS LIKELY IN THIS AREA OVERNIGHT. SOME LOCATIONS WHICH ARE 
  AT HIGH RISK OF FLASH FLOODING INCLUDE... WAUSAU...BROKAW... 
  EDGAR...EVERGREEN...FENWOOD AND HALDER.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

LAT...LON 4493 9011 4471 9000 4482 8938 4513 8926
          4511 9004

ECKBERG
3 follow-up statements
000 
RWUS32 KGRB 110837
FFSGRB
WIC073-111130-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
335 AM CDT TUE JUN 11 2002

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MARATHON COUNTY...

AT 330 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED
THE CLUSTER OF THUNDERSTORMS THAT PRODUCED THE TORRENTIAL RAINS 
HAVE WEAKENED...AND MOVE EAST OF THE COUNTY. RADAR ESTIMATES 
INDICATED THAT 2 TO 4 INCHES OF RAIN HAD FALLEN FROM NEAR LITTLE 
CHICAGO TO MARATHON CITY...SOUTH TO EDGAR AND ROZELVILLE SINCE 
MIDNIGHT. A FLASH FLOOD WARNING REMAINS IN EFFECT FOR MARATHON 
COUNTY UNTIL 630 AM. 

THE MARATHON COUNTY SHERIFF DEPARTMENT REPORTED WATER 3 INCHES DEEP 
IN THE TOWN OF EDGAR AROUND 230 AM. TWO FEET OF WATER COVERED 
HIGHWAY 29 NEAR HIGHWAY S AROUND 240 AM THIS MORNING. 

EVEN THOUGH THE TORRENTIAL RAINS APPEAR TO BE OVER...PERIODS OF 
SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH SUNRISE...THEN TAPER 
OFF LATER THIS MORNING. ADDTITION RAINFALL AMOUNTS OF A HALF INCH TO 
ONE INCH...WITH LOCALLY HIGHER AMOUNTS ARE LIKELY BEFORE THE RAIN 
TAPERS OFF. 
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

$$

ECKBERG
000 
RWUS32 KGRB 110947
FFSGRB
WIC073-111130-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
445 AM CDT TUE JUN 11 2002

...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MARATHON COUNTY...

AT 440 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT 2 
TO 4 INCHES OF RAIN HAD FALLEN FROM NEAR LITTLE CHICAGO...SOUTHWARD 
TO MARATHON CITY AND ROZELLVILLE. BASED ON RADAR ESTIMATES...THE 
HEAVIEST RAIN OCCURRED FROM FENWOOD TO EDGAR...WHILE THE MOST 
SIGNIFICANT RAINFALL TOTALS REMAINED JUST WEST OF THE CITY OF 
WAUSAU. A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM FOR 
MARATHON COUNTY. 

RADAR CONTINUED TO SHOW SCATTERED SHOWERS AND THUNDERSTORMS ACROSS 
NORTH CENTRAL WISCONSIN INTO SOUTHWESTERN WISCONSIN. FOR MARATHON 
COUNTY AND THE REMAINDER OF CENTRAL WISCONSIN...PERIODS OF SHOWERS 
AND THUNDERSTORMS WILL CONTINUE THROUGH MID MORNING WITH ADDTIONAL 
RAINFALL TOTALS OF A HALF INCH TO ONE INCH...WITH LOCALLY HIGHER 
AMOUNTS. 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

$$

ECKBERG
000 
RWUS32 KGRB 111147
FFSGRB
WIC073-111245-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
642 AM CDT TUE JUN 11 2002

...FLASH FLOOD WARNING FOR MARATHON COUNTY NO LONGER IN EFFECT...

AT 642 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED AN 
AREA OF SHOWERS WITH A FEW EMBEDDED THUNDERSTORMS OVER WESTERN 
MARATHON COUNTY. THE SHOWERS AND STORMS WERE MOVING NORTHEAST AT 35 
MPH. RAINFALL RATES HAVE DIMINISHED CONSIDERABLY AND NO LONGER 
POSE A THREAT OF PRODUCING ADDITIONAL HEAVY RAIN. THE FLASH FLOOD 
WARNING WHICH HAD BEEN IN EFFECT HAS EXPIRED AND IS NO LONGER IN 
EFFECT.

UP TO ANOTHER QUARTER INCH OF RAIN POSSIBLE THROUGH THE MORNING 
HOURS.

$$

TE

Nearby

Flash Flood Warnings in Wisconsin, 2002Every flash flood 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.