Alert archive / Wisconsin / Flash Flood Warnings in 2016

Flash Flood Warning 19, NWS La Crosse, WI

August 19, 2016Buffalo County, Trempealeau County, Wisconsin

NWS La Crosse, WI issued this flash flood warning at Aug 19, 2016, 3:20 AM CDT for Buffalo County, Trempealeau County, Wisconsin. It was in force for 3 hr. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 19, 2016, 3:20 AM CDT (08:20 UTC)
Expired
Aug 19, 2016, 6:15 AM CDT
In force
3 hr
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Flood severity
None

Counties Buffalo County, WI, Trempealeau County, WI

The radar

The La Crosse radar (KARX), 76 km from the middle of the area, began a volume at 08:21 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

TimeReportWhereRemark
Aug 19, 4:15 AM CDTFLASH FLOODPleasantville, WIWATER FROM ELK CREEK REPORTED OVER STATE ROAD 93 NEAR COUNTY ROAD E. STATE ROAD 93 IS CLOSED BETWEEN INDEPENDENCE AND ELEVA.
Aug 19, 5:17 AM CDTFLASH FLOOD3 W Mondovi, WIFLOODING IS OCCURRING ON COUNTY ROAD A WEST OF THE INTERSECTION WITH COUNTY ROAD TT
Aug 19, 5:17 AM CDTFLASH FLOODMondovi, WIFLOODING IS OCCURRING NEAR THE INTERSECTION OF EAST MAIN STREET AND MEMORIAL DRIVE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 8.3 hours before the alert went out and 175 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, Minneapolis, MN at 00:00Z on 2016-08-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 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, Minneapolis, MN at 00:00Z on 2016-08-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.193958Sfc1 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
185 J/kg
Mixed-layer CIN
-378 J/kg
Mixed-layer LCL
2171 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

773 
WGUS53 KARX 190820
FFWARX
WIC011-121-191115-
/O.NEW.KARX.FF.W.0019.160819T0820Z-160819T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
320 AM CDT FRI AUG 19 2016

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHERN TREMPEALEAU COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHEASTERN BUFFALO COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 615 AM CDT

* AT 313 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. THE RADAR ESTIMATES THAT 2 TO
  3 INCHES OF RAIN HAVE ALREADY FALLEN ACROSS NORTHERN TREMPEALEAU
  AND NORTHERN BUFFALO COUNTIES. UP TO ANOTHER 2 INCHES OF ADDITIONAL
  RAIN IS POSSIBLE THROUGH 6 AM THIS MORNING. FLASH FLOODING IS 
  EXPECTED TO BEGIN SHORTLY ALONG THE BUFFALO RIVER...ELK CREEK...
  AND PIGEON CREEK.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MONDOVI...WHITEHALL...BLAIR...INDEPENDENCE...STRUM...ELEVA...GILMANTON...
  PIGEON FALLS...CHIMNEY ROCK...THE BORST VALLEY AREA...PLEASANTVILLE...
  WALEK KNOB...WICKHAM VALLEY...THE BIG SWAMP AREA...MONDOVI AIRFIELD...
  ELK CREEK...SQUARE BLUFF AND LOOKOUT.

EXCESSIVE RAINFALL OVER THE WARNED AREA WILL CAUSE MUD SLIDES NEAR
STEEP TERRAIN. THE MUD SLIDE CAN CONSIST OF ROCK...MUD...VEGETATION AND
OTHER LOOSE MATERIALS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4460 9142 4449 9117 4427 9117 4433 9151
      4459 9201

$$

JSB
2 follow-up statements
436 
WGUS73 KARX 190947
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
447 AM CDT FRI AUG 19 2016

WIC011-121-191115-
/O.CON.KARX.FF.W.0019.000000T0000Z-160819T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TREMPEALEAU WI-BUFFALO WI-
447 AM CDT FRI AUG 19 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR
NORTHERN TREMPEALEAU AND NORTHEASTERN BUFFALO COUNTIES...

AT 440 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS CONTINUING TO 
MOVE ACROSS THE WARNED AREA. 3 TO 4 INCHES OF RAIN HAVE FALLEN. 
THIS RAIN HAS ALREADY PRODUCED FLASH FLOODING ALONG ELK CREEK AT STATE 
ROAD 93 NEAR COUNTY ROAD E.  ALSO STATE ROAD 93 IS CURRENTLY CLOSED 
BETWEEN INDEPENDENCE AND ELEVA.

ADDITIONAL RAINFALL AMOUNTS OF UP TO 1 INCH ARE POSSIBLE IN
THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4460 9142 4449 9117 4427 9117 4433 9151
      4459 9201

$$

JSB
255 
WGUS73 KARX 191032
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
532 AM CDT FRI AUG 19 2016

WIC011-121-191115-
/O.CON.KARX.FF.W.0019.000000T0000Z-160819T1115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TREMPEALEAU WI-BUFFALO WI-
532 AM CDT FRI AUG 19 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR
NORTHERN TREMPEALEAU AND NORTHEASTERN BUFFALO COUNTIES...

AT 517 AM CDT...DOPPLER RADAR INDICATED SHOWERS AND THUNDERSTORMS 
CONTINUING TO PRODUCE HEAVY RAIN ACROSS THE WARNED AREA. DOPPLER RADAR
ESTIMATES THAT 3 TO 4 INCHES OF RAIN HAS FALLEN BETWEEN MONDOVI AND 
WHITEHALL.  NUMEROUS ROADS ARE CLOSED IN ALBION...CHIMNEY ROCK...AND 
HALE WEST TOWNSHIPS IN NORTHERN TREMPEALEAU COUNTY. IN MONDOVI, FLOODING 
IS OCCURRING NEAR THE INTERSECTION OF EAST MAIN STREET AND MEMORIAL DRIVE.
FINALLY FLOODING IS OCCURRING ON COUNTY ROAD A 3.5 MILES WEST OF MONDOVI
PRIOR TO REACHING COUNTY ROAD T T. 

ADDITIONAL RAINFALL AMOUNTS OF UP TO 1 INCH ARE POSSIBLE IN THE WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4460 9142 4449 9117 4427 9117 4433 9151
      4459 9201

$$

JSB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 18, 7:13 PM CDTSpecial Weather StatementARXCrawford, Grant, Richland, Vernon62 min
Aug 18, 7:49 PM CDTSpecial Weather StatementARXGrant, Richland41 min
Aug 19, 12:20 AM CDTSpecial Weather StatementARXPepin25 min
Aug 19, 1:05 AM CDTSpecial Weather StatementARXJackson25 min
Aug 19, 1:41 AM CDTSpecial Weather StatementARXJackson, Trempealeau34 min
Aug 19, 2:29 AM CDTSpecial Weather StatementARXJackson61 min
Aug 19, 2:57 AM CDTSpecial Weather StatementARXLa Crosse33 min
Aug 19, 3:00 AM CDTSpecial Weather StatementARXBuffalo60 min
Aug 19, 3:27 AM CDTSpecial Weather StatementARXBuffalo, La Crosse, Trempealeau63 min
Aug 19, 3:51 AM CDTAreal Flood AdvisoryARXJackson, Monroe3 hr
Aug 19, 4:09 AM CDTAreal Flood AdvisoryARXLa Crosse, Monroe3 hr
Aug 19, 6:12 AM CDTAreal Flood WarningARXBuffalo, Trempealeau3 hr
Aug 19, 6:45 AM CDTAreal Flood AdvisoryARXJackson, Monroe3 hr
Aug 19, 8:57 AM CDTAreal Flood WarningARXBuffalo, Trempealeau3 hr
Aug 19, 9:08 AM CDTRiver Flood WarningARXBuffalo, Trempealeau5 days
Aug 19, 9:43 AM CDTAreal Flood AdvisoryARXJackson, Monroe3 hr
Aug 19, 2:14 PM CDTFlash Flood WatchARXAdams, Buffalo, Jackson, Juneau, Monroe, Trempealeau22 hr

Nearby

Flash Flood Warnings in Wisconsin, 2016Every flash flood warning in 2016

Sources

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