Alert archive / Wisconsin / Flash Flood Warnings in 2016

Flash Flood Warning 32, NWS La Crosse, WI

September 9, 2016Richland County, Wisconsin

NWS La Crosse, WI issued this flash flood warning at Sep 9, 2016, 1:35 PM CDT for Richland 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
Sep 9, 2016, 1:35 PM CDT (18:35 UTC)
Expired
Sep 9, 2016, 4:30 PM CDT
In force
3 hr
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Flood severity
None

County Richland County, WI

The radar

The La Crosse radar (KARX), 86 km from the middle of the area, began a volume at 18:39 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

Davenport, (KDVN), launched 12:00Z, 6.6 hours before the alert went out and 189 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, Davenport, at 12:00Z on 2016-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 437 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, Davenport, at 12:00Z on 2016-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.19395878Sfc1 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
437 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
545 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

407 
WGUS53 KARX 091835
FFWARX
WIC103-092130-
/O.NEW.KARX.FF.W.0032.160909T1835Z-160909T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
135 PM CDT FRI SEP 9 2016

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  RICHLAND COUNTY IN SOUTHWESTERN WISCONSIN...

* UNTIL 430 PM CDT

* AT 129 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. AN ESTIMATED 2-3 INCHES OF RAIN
  HAS FALLEN OVER THE NORTHERN PART OF RICHLAND COUNTY, ANOTHER 1 TO
  POSSIBLY 2 INCHES IS EXPECTED OVER THE NEXT 2 HOURS. 

* FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY, ESPECIALLY OVER THE
  NORTHERN PORTION OF THE COUNTY. THE PINE RIVER WILL BEGIN TO RISE
  AS WELL. 

* CREEKS AND STREAMS WILL BE FLOODING AND ROADS WILL BE DAMAGED OR
  CLOSED. 

* THE RAIN WILL END FROM WEST TO EAST AROUND 4 PM TODAY. FLOODING
  WILL LIKELY CONTINUE HOWEVER. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  RICHLAND CENTER...GERMANTOWN...WESTPORT...EXCELSIOR...ROCKBRIDGE...
  VIOLA...AVOCA...ITHACA...ORION...SYLVAN...BOAZ...YUBA...TAVERA...
  EAGLE CAVE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST
FLOOD DEATHS OCCUR IN VEHICLES.
&&

LAT...LON 4320 9026 4320 9028 4321 9029 4320 9044
      4321 9055 4317 9066 4355 9067 4355 9045
      4356 9044 4355 9019 4317 9020

$$

RIECK
2 follow-up statements
847 
WGUS73 KARX 091937
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
237 PM CDT FRI SEP 9 2016

WIC103-092130-
/O.CON.KARX.FF.W.0032.000000T0000Z-160909T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RICHLAND WI-
237 PM CDT FRI SEP 9 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
RICHLAND COUNTY...

AT 222 PM CDT...DOPPLER RADAR INDICATED RAIN ACROSS THE WARNED AREA.
NORTHERN RICHLAND COUNTY HAS SEEN ABOUT 3 INCHES OF RAIN...WITH
LESSER AMOUNTS IN SOUTHERN RICHLAND COUNTY. LAW ENFORCEMENT REPORTS
NO ACTIVE FLOODING AS OF YET. 

* CREEKS AND STREAMS REMAIN HIGH AND WILL BE RISING....THIS COULD
  CAUSE FLOODING IN THE NEXT HOURS.  

* ADDITIONAL RAINFALL SHOULD BE LESS THAN ONE-HALF INCH. THE RAIN IS
  STILL EXPECTED TO END FROM WEST TO EAST IN THE 4 PM TIME FRAME. 

LOCATIONS MOST PRONE TO FLOODING WOULD
BE...ROCKBRIDGE...VIOLA...YUBA...BLOOM CITY...SABIN...LOYD...WEST
LIMA...AND BOSSTOWN. THE PINE RIVER AS WELL. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 4320 9026 4320 9028 4321 9029 4320 9044
      4321 9055 4317 9066 4355 9067 4355 9045
      4356 9044 4355 9019 4317 9020

$$

BAUMGARDT
708 
WGUS73 KARX 092112
FFSARX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
412 PM CDT FRI SEP 9 2016

WIC103-092130-
/O.CON.KARX.FF.W.0032.000000T0000Z-160909T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
RICHLAND WI-
412 PM CDT FRI SEP 9 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
RICHLAND COUNTY...

THE FLASH FLOOD WARNING WILL BE ALLOWED TO EXPIRE AT 430 PM.

AT 408 PM CDT...DOPPLER RADAR INDICATED THE HEAVY RAINFALL HAD
SHIFTED EAST OF THE AREA. MORE RAIN IS EXPECTED THIS
EVNEING...BUT IT SHOULD NOT CAUSE ADDITIONAL FLOODING. 

LAW ENFORCEMENT INDICATES THE WATER LEVELS HAVE RECEDED AND FLOODING
WAS NOT ONGOING. SOME ROADS MAY REMAIN CLOSED ACROSS THE WARNING
AREA. 

BECAUSE THERE IS NO ACTIVE FLOODING....THE WARNING WILL BE ALLOWED
TO EXPIRE AT 430 PM. 

REMAIN ALERT FOR HIGH CREEKS AND STREAMS ACROSS THE AREA IF
TRAVELING TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.


LAT...LON 4320 9026 4320 9028 4321 9029 4320 9044
      4321 9055 4317 9066 4355 9067 4355 9045
      4356 9044 4355 9019 4317 9020

$$

BAUMGARDT

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 9, 11:41 AM CDTFlash Flood WatchARXCrawford, Grant, Richland, Vernon7 hr
Sep 9, 12:23 PM CDTAreal Flood WarningARXRichland9 hr
Sep 9, 1:02 PM CDTFlash Flood WarningARXCrawford, Vernon3 hr
Sep 9, 3:01 PM CDTRiver Flood WarningARXRichland, Vernon66 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.