Alert archive / Kentucky / Flash Flood Warnings in 2012

Flash Flood Warning 46, NWS Jackson, KY

August 9, 2012Pulaski County, Rockcastle County, Kentucky

NWS Jackson, KY issued this flash flood warning at Aug 9, 2012, 2:59 PM EDT for Pulaski County, Rockcastle County, Kentucky. 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
Aug 9, 2012, 2:59 PM EDT (18:59 UTC)
Expired
Aug 9, 2012, 5:42 PM EDT
In force
3 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Pulaski County, KY, Rockcastle County, KY

The radar

The Jackson,KY radar (KJKL), 99 km from the middle of the area, began a volume at 19:02 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 12:00Z, 7.0 hours before the alert went out and 230 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, Cncnati-Daytn, OH at 12:00Z on 2012-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 946 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, Cncnati-Daytn, OH at 12:00Z on 2012-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.1939Sfc1 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
946 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1085 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

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

648 
WGUS53 KJKL 091859
FFWJKL
KYC199-203-100100-
/O.NEW.KJKL.FF.W.0046.120809T1859Z-120810T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON KY
259 PM EDT THU AUG 9 2012

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTH CENTRAL PULASKI COUNTY IN SOUTH CENTRAL KENTUCKY...
  ROCKCASTLE COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 900 PM EDT

* AT 259 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE      
  WARNED AREA. UP TO 2 INCHES OF RAIN HAS ALREADY FALLEN.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
  OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...MOUNT
  VERNON...BANDY...BEE LICK...BOBTOWN...BOONE...BRODHEAD...BROMO...
  BUMMER...BURR...CLIMAX...CONWAY...DABNEY...DISPUTANTA...DONARO...
  DUDLEY STATION...FLAT ROCK...GAULEY...GUM SULPHUR...HANSFORD...
  HIATT...HUMMEL...INDIAN LAKES PARK...JOHNETTA...LAKE LINVILLE...
  LEVEL GREEN...MARETBURG...MUELLERSVILLE...ORLANDO...OTTOWA AND PINE
  HILL.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
LITTLE NEGRO CREEK...ROUNDSTONE CREEK...CANEY CREEK...DIX RIVER...
NEGRO CREEK...BRUSH CREEK...LICK BRANCH...BARNEY BRANCH...SKEGG
CREEK...BRUSHY CREEK...BUCK CREEK...BEE LICK CREEK...WARREN BRANCH...
SCAFFOLD CANE BRANCH...ANGLIN FORK...CLEAR CREEK...CROOKED CREEK...
WOLF CREEK...DORMAN CREEK...RASH BRANCH...EAST FORK SKEGG CREEK...DRY
FORK...WEST FORK SKEGG CREEK...TOWN BRANCH...LITTLE RENFRO CREEK...
COPPER CREEK...TARKIN BRANCH...SOUL CHAPEL BRANCH...FLAT LICK
CREEK...CLIFTY CREEK...LINE CREEK...SINKING BRANCH...LONG BRANCH...
ROCKCASTLE RIVER...PITMAN CREEK...WHETSTONE CREEK...BRIARY CREEK...
CLEAR FORK BRANCH...SOUTH FORK ROCKCASTLE RIVER...BRUSHY FORK...WEST
FORK SILVER CREEK...COWBELL CREEK...JASON BRANCH AND INDIAN CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS AROUND 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

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.

&&

LAT...LON 3736 8456 3734 8450 3745 8447 3749 8442
      3748 8438 3750 8436 3754 8435 3754 8430
      3752 8427 3753 8422 3730 8418 3714 8455
      3732 8462

$$

KAS
1 follow-up statement
575 
WGUS73 KJKL 092142
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
542 PM EDT THU AUG 9 2012

KYC199-203-092157-
/O.CAN.KJKL.FF.W.0046.000000T0000Z-120810T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PULASKI KY-ROCKCASTLE KY-
542 PM EDT THU AUG 9 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR ROCKCASTLE AND
NORTH CENTRAL PULASKI COUNTIES IS CANCELLED...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED 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 3736 8456 3734 8450 3745 8447 3749 8442
      3748 8438 3750 8436 3754 8435 3754 8430
      3752 8427 3753 8422 3730 8418 3714 8455
      3732 8462

$$

HAL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 12:59 PM EDTSevere Thunderstorm WarningJKLJackson, Rockcastle31 min
Aug 9, 1:06 PM EDTSevere Thunderstorm WarningJKLJackson, Laurel, Rockcastle24 min
Aug 9, 1:27 PM EDTAreal Flood AdvisoryJKLJackson, Rockcastle4 hr
Aug 9, 1:59 PM EDTAreal Flood AdvisoryJKLMcCreary, Wayne4 hr
Aug 9, 2:11 PM EDTSevere Thunderstorm WarningJKLClay, Jackson, Laurel, Perry34 min
Aug 9, 2:15 PM EDTAreal Flood AdvisoryJKLClay, Laurel3 hr
Aug 9, 2:28 PM EDTSevere Thunderstorm WarningJKLClay, Knox, Laurel, Leslie32 min
Aug 9, 2:47 PM EDTAreal Flood AdvisoryJKLPulaski, Rockcastle3 hr
Aug 9, 3:10 PM EDTAreal Flood AdvisoryJKLClay, Knox, Laurel2 hr
Aug 9, 3:50 PM EDTFlash Flood WarningJKLLaurel3 hr
Aug 9, 5:06 PM EDTAreal Flood AdvisoryJKLFloyd, Knott2 hr

Nearby

Flash Flood Warnings in Kentucky, 2012Every flash flood warning in 2012

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.