Alert archive / Wisconsin / Flash Flood Warnings in 2008
Flash Flood Warning 33, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jul 12, 2008, 3:15 AM CDT for Grant 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 outline as issued.
The facts
- Issued
- Jul 12, 2008, 3:15 AM CDT (08:15 UTC)
- Expired
- Jul 12, 2008, 6:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
County Grant County, WI
The radar
The La Crosse radar (KARX), 125 km from the middle of the area, began a volume at 08:18 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
Davenport, (KDVN), launched 00:00Z, 8.3 hours before the alert went out and 130 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.
- Mixed-layer CAPE
- 331 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1485 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 85 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KARX 120815
FFWARX
WIC043-121115-
/O.NEW.KARX.FF.W.0033.080712T0815Z-080712T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
315 AM CDT SAT JUL 12 2008
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL GRANT COUNTY IN SOUTHWEST WISCONSIN...
* UNTIL 615 AM CDT
* AT 305 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
RAINFALL TOTALS OF 1 TO 2 INCHES SINCE MIDNIGHT DUE TO
THUNDERSTORMS WITH HEAVY RAIN. THESE RAINFALL TOTALS WERE IN
ADDITION TO HEAVY RAINFALL WHICH OCCURRED THURSDAY NIGHT.
* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO UNION
AND ELLENBORO. THE PLATTE RIVER...WILLOW BRANCH AND MCPHERSON
BRANCH HAVE THE HIGHEST THREAT OF FLASH FLOODING.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT.
IF YOU ARE IN THE WARNED AREA MOVE TO HIGHER GROUND IMMEDIATELY.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. MOST FLOOD RELATED DEATHS OCCUR AT NIGHT. IF
FLOODING IS OBSERVED ACT QUICKLY.
LAT...LON 4288 9059 4287 9049 4271 9055 4268 9065
4270 9074
$$
THOMPSON2 follow-up statements
000
WGUS73 KARX 120944
FFSARX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
444 AM CDT SAT JUL 12 2008
WIC043-121115-
/O.CON.KARX.FF.W.0033.000000T0000Z-080712T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GRANT WI-
444 AM CDT SAT JUL 12 2008
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR
SOUTHERN GRANT COUNTY...
AT 430 AM...DOPPLER RADAR ESTIMATED THAT 2 TO 2.5 INCHES OF RAIN HAD
FALLEN IN SOUTH-CENTRAL GRANT COUNTY. THIS RAIN AREA EXTENDED FROM
UNION TO ELLENBORO TO NORTHEAST OF POTOSI. THE MAIN RIVER AFFECTED
BY THIS RAINFALL WILL BE THE PLATTE RIVER AND ITS ASSOCIATED
BRANCHES INCLUDING THE WILLOW AND MCPHERSON. COUNTY SHERIFFS
REPORTED THEY DID NOT KNOW OF WATER PROBLEMS...BUT THIS DOES NOT
MEAN FLOODING IS NOT A THREAT.
THIS SAME AREA HAD 3 TO 4 INCHES OF RAINFALL THURSDAY EVENING AND
THEREFORE RECENT RAINS ARE FALLING ON SATURATED SOILS AND WILL
RUNOFF INTO CREEKS AND STREAMS. THOSE LIVING IN THE WARNING AREA
NEAR CREEKS AND STREAMS SHOULD CHECK WATER LEVELS IMMEDIATELY TO
ENSURE SAFETY. MOVE TO HIGHER GROUND IF NEEDED.
AT 442 AM...RADAR INDICATED THAT MOST OF THE RAINFALL HAS ENDED IN
THE FLASH FLOOD WARNING AREA. HOWEVER...WATER WILL STILL RISE
THROUGH THE NEXT HOURS. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS BY
FOOT OR AUTOMOBILE. REMEMBER...TURN AROUND DONT DROWN.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. MOST FLOOD RELATED DEATHS OCCUR AT NIGHT. IF
FLOODING IS OBSERVED ACT QUICKLY.
LAT...LON 4288 9059 4287 9049 4271 9055 4268 9065
4270 9074
$$
BAUMGARDT000
WGUS73 KARX 121116
FFSARX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
616 AM CDT SAT JUL 12 2008
WIC043-121122-
/O.EXP.KARX.FF.W.0033.000000T0000Z-080712T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GRANT WI-
616 AM CDT SAT JUL 12 2008
...THE FLASH FLOOD WARNING WILL EXPIRE AT 615 AM CDT FOR SOUTHERN
GRANT COUNTY...
THE HEAVY RAINFALL HAS ENDED. LAW ENFORCEMENT REPORTS NO PROBLEMS IN
THE WARNED AREA AT THIS TIME. THE THREAT FOR FLASH FLOODING HAS
DIMINISHED ACROSS THE WARNED AREA. THEREFORE...THE FLASH FLOOD
WARNING HAS BEEN ALLOWED TO EXPIRE.
OVERNIGHT A LOCALLY HIGHER AMOUNT OF RAIN FELL FROM UNION TO
ELLENBORO TO NORTHEAST OF POTOSI. THE MAIN RIVER AFFECTED BY THIS
RAINFALL WILL BE THE PLATTE RIVER AND ITS ASSOCIATED BRANCHES
INCLUDING THE WILLOW AND MCPHERSON. THESE WATERWAYS ARE LIKELY
RUNNING VERY HIGH OR COULD BE 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 4288 9059 4287 9049 4271 9055 4268 9065
4270 9074
$$
BAUMGARDTThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 9:30 PM CDT | Areal Flood Warning | ARX | Juneau, Monroe | 36 hr |
| Jul 11, 9:58 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo | 77 min |
| Jul 11, 10:34 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo, Clark, Jackson, Taylor, Trempealeau | 71 min |
Nearby
Flash Flood Warnings in Wisconsin, 2008Every 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.