Alert archive / Kentucky / Flash Flood Warnings in 2011

Flash Flood Warning 41, NWS Jackson, KY

July 25, 2011McCreary County, Whitley County, Kentucky

NWS Jackson, KY issued this flash flood warning at Jul 25, 2011, 2:24 PM EDT for McCreary County, Whitley County, Kentucky. It was in force for 99 min. 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 25, 2011, 2:24 PM EDT (18:24 UTC)
Expired: Jul 25, 2011, 4:03 PM EDT
In force: 99 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

Counties McCreary County, KY, Whitley County, KY

The radar

The Knoxville radar (KMRX), 101 km from the middle of the area, began a volume at 18:25 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

Nashville Metro, TN (KBNA), launched 12:00Z, 6.4 hours before the alert went out and 217 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: 256 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 931 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: -8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000
WGUS53 KJKL 251824
FFWJKL
KYC147-235-260030-
/O.NEW.KJKL.FF.W.0041.110725T1824Z-110726T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON KY
224 PM EDT MON JUL 25 2011

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN MCCREARY COUNTY IN SOUTH CENTRAL KENTUCKY...
  SOUTHWESTERN WHITLEY COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 830 PM EDT

* AT 221 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. RAINFALL ESTIMATES OF 2 TO 4 INCHES ARE INDICATED BY  
  THE DOPPLER RADAR OVER PARTS OF THE WARNING AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  AYERS...BOUNTY...CUMBERLAND FALLS S.P....DUCKRUN...JELLICO CREEK
  AND ZION HILL.


THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
KILBURN FORK...INDIAN CREEK...CUMBERLAND RIVER...JELLICO CREEK...
MARSH CREEK...CLEAR FORK...BECKS CREEK...PLEASANT RUN...BUCKS
BRANCH...SOUTH FORK INDIAN CREEK...RYANS CREEK...ROCK CREEK...EAGLE
CREEK...LITTLE BUNCHES CREEK...ARCHERS CREEK...LAUREL FORK...COGUR
FORK...HENS NEST CREEK...WHITE OAK CREEK...OPOSSUM CREEK...WOLF
CREEK...LITTLE WOLF CREEK...ELK CREEK AND SHOP BRANCH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF ONE INCH ARE POSSIBLE IN THE WARNED 
AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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.

&&

LAT...LON 3680 8441 3685 8433 3671 8419 3660 8412
      3659 8427

$$

JACOBSON

1 follow-up statement

539 
WGUS73 KJKL 252003
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
403 PM EDT MON JUL 25 2011

KYC147-235-252017-
/O.CAN.KJKL.FF.W.0041.000000T0000Z-110726T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WHITLEY KY-MCCREARY KY-
403 PM EDT MON JUL 25 2011

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHEASTERN
MCCREARY AND SOUTHWESTERN WHITLEY COUNTIES IS CANCELLED...

AS OF 4 PM EDT...CALLS TO MCCREARY AND WHITLEY COUNTY DISPATCH 
OFFICES INDICATE THAT NO FLOODING IS OCCURRING. THE HEAVY RAIN THREAT
HAS ENDED. 

SINCE THE HEAVY RAIN THREAT HAS ENDED...EXCESS RUNOFF FROM HEAVY 
RAIN HAS ENDED OR WILL SHORTLY END OVER THE WARNED AREA. STREAMS AND 
CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO 
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN 
OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LAT...LON 3680 8441 3685 8433 3671 8419 3660 8412
      3659 8427

$$

PELTON

The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 24, 9:07 PM EDT	Areal Flood Advisory	JKL	Breathitt, Floyd, Johnson, Knott, Magoffin	89 min
Jul 25, 11:35 AM EDT	Areal Flood Advisory	JKL	Letcher	4 hr
Jul 25, 12:20 PM EDT	Areal Flood Advisory	JKL	Pike	4 hr
Jul 25, 12:54 PM EDT	Areal Flood Advisory	JKL	Pike	4 hr
Jul 25, 2:55 PM EDT	Flash Flood Warning	JKL	McCreary, Whitley	69 min
Jul 25, 4:54 PM EDT	Areal Flood Warning	JKL	Letcher	2 hr
Jul 25, 5:31 PM EDT	Areal Flood Advisory	JKL	Floyd	98 min

Nearby

Flash Flood Warnings in Kentucky, 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.