Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 36, NWS Charleston, WV

July 12, 20114 counties in Kentucky; Wayne County, West Virginia

NWS Charleston, WV issued this flash flood warning at Jul 12, 2011, 12:05 AM EDT for 4 counties in Kentucky; Wayne County, West Virginia. It was in force for 2 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, 2011, 12:05 AM EDT (04:05 UTC)
Expired: Jul 12, 2011, 2:29 AM EDT
In force: 2 hr
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Flood severity: None

Counties Boyd County, KY, Carter County, KY, Greenup County, KY, Lawrence County, KY, Wayne County, WV

The radar

The Charleston,WV radar (KRLX), 110 km from the middle of the area, began a volume at 04:08 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

Cncnati-Daytn, OH (KILN), launched 00:00Z, 4.1 hours before the alert went out and 122 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: 4907 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 987 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 202 m²/s²
0-3 km storm-relative helicity: 267 m²/s²
Significant tornado parameter: 5.9
Supercell composite: 33.6

Open this sounding in Storm Lab

The text

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

933 
WGUS51 KRLX 120405
FFWRLX
KYC019-043-089-127-WVC099-120700-
/O.NEW.KRLX.FF.W.0036.110712T0405Z-110712T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
1205 AM EDT TUE JUL 12 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BOYD COUNTY IN KENTUCKY...
  THIS INCLUDES THE CITY OF CANNONSBURG...
  CARTER COUNTY IN KENTUCKY...
  THIS INCLUDES THE CITIES OF...GRAYSON...CARTER CAVES STATE PARK...
  GREENUP COUNTY IN KENTUCKY...
  NORTHERN LAWRENCE COUNTY IN KENTUCKY...
  THIS INCLUDES THE CITY OF YATESVILLE LAKE STATE PARK...
  EXTREME NORTHWESTERN WAYNE COUNTY IN WEST VIRGINIA...

* UNTIL 300 AM EDT

* AT 1159 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
VERY HEAVY RAINS FROM THUNDERSTORMS OVER THE WARNED AREA...CAPABLE 
OF PRODUCING FLASH FLOODING.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SOUTH
  PORTSMOUTH AND SOUTH SHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

&&

PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3851 8319 3856 8310 3863 8308 3868 8304
      3871 8304 3873 8303 3874 8291 3869 8286
      3859 8284 3856 8280 3856 8274 3838 8256
      3806 8265 3837 8324

$$

05

2 follow-up statements

056 
WGUS71 KRLX 120513
FFSRLX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
113 AM EDT TUE JUL 12 2011

KYC019-043-089-127-WVC099-120700-
/O.CON.KRLX.FF.W.0036.000000T0000Z-110712T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAWRENCE KY-BOYD KY-CARTER KY-GREENUP KY-WAYNE WV-
113 AM EDT TUE JUL 12 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 AM EDT FOR
GREENUP...CARTER...BOYD AND NORTHERN LAWRENCE COUNTIES IN KENTUCKY...
AND EXTREME NORTHWESTERN WAYNE COUNTY IN WEST VIRGINIA...

AT 106 AM EDT...ALTHOUGH THUNDERSTORMS THAT PRODUCED THE HEAVY RAIN 
HAVE SHIFTED SOUTH AND EAST OF THE WARNED AREA...RUNOFF MAY CONTINUE 
TO PRODUCE WATER PROBLEMS THROUGH 3AM EDT.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LETITIA AND
GREENUP

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS
FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF
SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY.

TURN AROUND DON'T DROWN. DO NOT DRIVE YOUR CAR ON FLOODED ROADWAYS.

PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE 877-633-6772 WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3851 8319 3856 8310 3863 8308 3868 8304
      3871 8304 3873 8303 3874 8291 3869 8286
      3859 8284 3856 8280 3856 8274 3838 8256
      3806 8265 3837 8324

$$

13

815 
WGUS71 KRLX 120629
FFSRLX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
229 AM EDT TUE JUL 12 2011

KYC019-043-089-127-WVC099-120639-
/O.CAN.KRLX.FF.W.0036.000000T0000Z-110712T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LAWRENCE KY-BOYD KY-CARTER KY-GREENUP KY-WAYNE WV-
229 AM EDT TUE JUL 12 2011

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR GREENUP...CARTER...
BOYD AND NORTHERN LAWRENCE COUNTIES IN KENTUCKY...AND EXTREME
NORTHWESTERN WAYNE COUNTY IN WEST VIRGINIA...

HEAVY RAIN HAS MOVED OUT OF THE AREA AS A RESULT THE FLASH FLOOD
WARNING HAS BEEN CANCELLED. LIGHT TO MODERATE RAIN CAN BE EXPECTED
THE NEXT OR SO BUT STREAMS AND CREEKS SHOULD REMAIN INSIDE THEIR
BANKS.

TURN AROUND DON'T DROWN. DO NOT DRIVE YOUR CAR ON FLOODED ROADWAYS.

PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE 877-633-6772 WHEN YOU CAN DO SO SAFELY.

LAT...LON 3851 8319 3856 8310 3863 8308 3868 8304
      3871 8304 3873 8303 3874 8291 3869 8286
      3859 8284 3856 8280 3856 8274 3838 8256
      3806 8265 3837 8324

$$

13

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 11:02 PM EDT	Special Weather Statement	RLX	Boyd, Carter, Greenup	28 min
Jul 11, 11:31 PM EDT	Special Weather Statement	RLX	Boyd, Carter, Greenup, Lawrence	74 min
Jul 12, 4:13 AM EDT	Heat Advisory	RLX	Boyd, Carter, Greenup, Lawrence	14 hr
Jul 11, 10:57 PM EDT	Special Weather Statement	RLX	Wood	48 min
Jul 11, 11:38 PM EDT	Special Weather Statement	RLX	Calhoun, Gilmer, Jackson, Ritchie, Roane, Wirt and 1 more	82 min
Jul 12, 12:01 AM EDT	Special Weather Statement	RLX	Boone, Kanawha, Lincoln, Putnam, Wayne	59 min
Jul 12, 12:50 AM EDT	Special Weather Statement	RLX	Boone, Fayette, Kanawha, Lincoln, Logan, Mingo	55 min
Jul 12, 1:37 AM EDT	Special Weather Statement	RLX	Logan, McDowell, Wyoming	53 min
Jul 12, 7:29 PM EDT	Special Weather Statement	RLX	Mingo	31 min

Nearby

Flash Flood Warnings in Kentucky, 2011 Flash Flood Warnings in West Virginia, 2011 Every flash flood warning in 2011

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.