Alert archive / Wisconsin / Flash Flood Warnings in 2008

Flash Flood Warning 21, NWS La Crosse, WI

June 12, 2008Adams County, Juneau County, Wisconsin

NWS La Crosse, WI issued this flash flood warning at Jun 12, 2008, 3:06 PM CDT for Adams County, Juneau 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 12, 2008, 3:06 PM CDT (20:06 UTC)
Expired: Jun 12, 2008, 7:00 PM CDT
In force: 4 hr
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Flood severity: None

Counties Adams County, WI, Juneau County, WI

The radar

The La Crosse radar (KARX), 106 km from the middle of the area, began a volume at 20:06 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, 8.1 hours before the alert went out and 155 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1473 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KARX 122008
FFWARX
WIC001-057-130000-
/O.NEW.KARX.FF.W.0021.080612T2006Z-080613T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
306 PM CDT THU JUN 12 2008

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ADAMS COUNTY IN CENTRAL WISCONSIN...
  THIS INCLUDES THE CITY OF FRIENDSHIP...
  JUNEAU COUNTY IN CENTRAL WISCONSIN...
  THIS INCLUDES THE CITY OF MAUSTON...

* UNTIL 700 PM CDT

* AT 301 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  VERY HEAVY RAIN OCCURRING TO THE SOUTH OF JUNEAU AND ADAMS         
  COUNTY...BUT MOVING STEADILY NORTH. THIS AREA WILL PRODUCE 1 TO 3  
  INCHES OF RAINFALL IN THE WARNED AREA BY 6 PM THIS EVENING. FLASH  
  FLOODING WILL BE WIDESPREAD WITH ALREADY SATURDATED SOILS. 

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW ROME...
  NEW LISBON...NECEDAH...DELLWOOD AND ADAMS

YOU HAVE TIME TO TAKE SOME PRECAUTIONS NOW AND PREPARE FOR FLOODING 
THAT WILL OCCUR LATER THIS AFTERNOON AND EVENING.  

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY. DO
NOT ATTEMPT TO CROSS FLOODED ROADWAYS BY FOOT OR AUTOMOBILE.
REMEMBER...TURN AROUND DONT DROWN.

LAT...LON 4365 8960 4364 9031 4378 9032 4426 9015
      4425 8960 4420 8958
TIME...MOT...LOC 2006Z 180DEG 0KT 4377 9000

$$

BAUMGARDT

3 follow-up statements

000 
WGUS73 KARX 122107
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
403 PM CDT THU JUN 12 2008

WIC001-057-130000-
/O.CON.KARX.FF.W.0021.000000T0000Z-080613T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JUNEAU WI-ADAMS WI-
403 PM CDT THU JUN 12 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR ADAMS
AND JUNEAU COUNTIES...

AT 400 PM CDT...A THUNDERSTORMS WERE MOVING INTO THE SOUTHERN PART 
OF THE COUNTIES AFFECTED. RADAR ESTIMATES OF OVER AN INCH OF RAIN 
HAS FALLEN TODAY...AND THE HEAVIER RAIN IS NOW MOVING IN. IT IS 
EXPECTED THAT ABOUT 2 TO 3 INCHES OF RAIN WILL AFFECT AN AREA SOUTHEAST 
OF A LINE FROM HILLSBORO...TO MAUSTON...TO ADAMS...TO THE 
INTERSECTION OF HIGHWAY 51 AND HIGHWAY 21 BY 7 PM. AREAS FURTHER NORTH 
WILL SEE LESSER AMOUNTS BUT STILL MAY EXPERIENCE SPORATIC FLOODING. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO NEW 
ROME...NEW LISBON...NECEDAH...MAUSTON...FRIENDSHIP...DELLWOOD AND 
ADAMS. 

IF YOU ARE IN THE WARNED AREA...EXPECT FLOODING TO BECOME MORE 
WIDEPSREAD AS THE AFTERNOON AND EVENING CONTINUE. MOVE TO HIGHER 
GROUND IMMEDIATELY IF THREATENED. DO NOT ATTEMPT TO CROSS FLOODED 
ROADWAYS BY FOOT OR AUTOMOBILE. REMEMBER...TURN AROUND DONT DROWN.

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE
INTO AREAS WHERE THE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES INCLUDING SPORT UTILITY VEHICLES AND
PICKUPS. REMEMBER...TURN AROUND DONT DROWN.

LAT...LON 4365 8960 4364 9031 4378 9032 4426 9015
      4425 8960 4420 8958
TIME...MOT...LOC 2103Z 180DEG 0KT 4377 9000

$$
BAUMGARDT

000 
WGUS73 KARX 122217
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
512 PM CDT THU JUN 12 2008

WIC001-057-130000-
/O.CON.KARX.FF.W.0021.000000T0000Z-080613T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JUNEAU WI-ADAMS WI-
512 PM CDT THU JUN 12 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR ADAMS
AND JUNEAU COUNTIES...

AT 508 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS WITH HEAVY 
RAIN CONTINUING SOUTH OF HIGHWAY 21. THIS RAINFALL WILL CONTINUE 
THROUGH AT LEAST 6 PM.  

IT IS EXPECTED THAT ABOUT 2 TO 3 INCHES OF RAIN WILL AFFECT AN AREA 
SOUTHEAST OF A LINE FROM HILLSBORO...TO MAUSTON...TO ADAMS...TO THE 
INTERSECTION OF HIGHWAY 51 AND HIGHWAY 21 BY 7 PM. AREAS FURTHER 
NORTH WILL SEE LESSER AMOUNTS BUT STILL MAY EXPERIENCE SPORATIC 
FLOODING. 

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT DRIVE YOUR VEHICLE 
INTO AREAS WHERE THE WATER COVERS THE ROAD. TWO FEET OF RUSHING WATER
CAN CARRY AWAY MOST VEHICLES INCLUDING SPORT UTILITY VEHICLES AND 
PICKUPS. REMEMBER...TURN AROUND DONT DROWN.

LAT...LON 4365 8960 4364 9031 4378 9032 4426 9015
      4425 8960 4420 8958
TIME...MOT...LOC 2212Z 180DEG 0KT 4377 9000

$$
BAUMGARDT

000 
WGUS73 KARX 122355
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
654 PM CDT THU JUN 12 2008

WIC001-057-130004-
/O.EXP.KARX.FF.W.0021.000000T0000Z-080613T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
JUNEAU WI-ADAMS WI-
654 PM CDT THU JUN 12 2008

...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 PM CDT FOR ADAMS AND
JUNEAU COUNTIES...

ALTHOUGH SCATTERED SHOWERS AND THUNDERSTORMS CAN BE EXPECTED OVER 
THE NEXT SEVERAL HOURS...THE THREAT FOR FLASH FLOODING HAS 
DIMINISHED ACROSS THE WARNED AREA. THEREFORE...THE FLASH FLOOD 
WARNING HAS BEEN ALLOWED TO EXPIRE.

LAT...LON 4365 8960 4364 9031 4378 9032 4426 9015
      4425 8960 4420 8958
TIME...MOT...LOC 2354Z 180DEG 0KT 4377 9000

$$

BROOKS

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 1:22 PM CDT	Severe Thunderstorm Warning	ARX	Grant	38 min
Jun 12, 1:36 PM CDT	Flash Flood Warning	ARX	Grant	3 hr
Jun 12, 2:14 PM CDT	Severe Thunderstorm Warning	ARX	Grant	46 min
Jun 12, 2:26 PM CDT	Tornado Warning	ARX	Grant	15 min
Jun 12, 2:50 PM CDT	Flash Flood Warning	ARX	Richland	5 hr
Jun 12, 3:19 PM CDT	Severe Thunderstorm Warning	ARX	Adams, Juneau	26 min
Jun 12, 4:19 PM CDT	Flash Flood Warning	ARX	Grant	5 hr

Nearby

Flash Flood Warnings in Wisconsin, 2008 Every flash flood warning in 2008

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.