Alert archive / Kentucky / Flash Flood Warnings in 2008

Flash Flood Warning 21, NWS Jackson, KY

July 30, 20085 counties in Kentucky

NWS Jackson, KY issued this flash flood warning at Jul 30, 2008, 5:52 PM EDT for 5 counties in 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
Jul 30, 2008, 5:52 PM EDT (21:52 UTC)
Expired
Jul 30, 2008, 8:35 PM EDT
In force
3 hr
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Flood severity
None

Counties Laurel County, KY, McCreary County, KY, Pulaski County, KY, Wayne County, KY, Whitley County, KY

The radar

The Knoxville radar (KMRX), 125 km from the middle of the area, began a volume at 21:54 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, 9.9 hours before the alert went out and 208 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, Nashville Metro, TN at 12:00Z on 2008-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1035 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, Nashville Metro, TN at 12:00Z on 2008-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
1035 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
839 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WGUS53 KJKL 302153
FFWJKL
KYC125-147-199-231-235-310045-
/O.NEW.KJKL.FF.W.0021.080730T2152Z-080731T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE JACKSON KY
552 PM EDT WED JUL 30 2008

THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EXTREME SOUTHWESTERN LAUREL COUNTY IN SOUTH CENTRAL KENTUCKY...
  NORTHEASTERN MCCREARY COUNTY IN SOUTH CENTRAL KENTUCKY...
  SOUTHEASTERN PULASKI COUNTY IN SOUTH CENTRAL KENTUCKY...
  EXTREME NORTHEASTERN WAYNE COUNTY IN SOUTH CENTRAL KENTUCKY...
  NORTHWESTERN WHITLEY COUNTY IN SOUTH CENTRAL KENTUCKY...

* UNTIL 845 PM EDT

* AT 551 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  TORRENTIAL RAIN FALLING FROM THUNDERSTORMS OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO AREAS IN
  THE VICINITY OF BURNSIDE...ALPINE...BRONSTON...FRAZER...GENERAL
  BURNSIDE S.P....HUXLEY AND MOUNT VICTORY.

FLASH FLOODING IS BEING CAUSED BY THUNDERSTORMS PRODUCING HEAVY RAIN
AND MOVING REPEATEDLY OVER THE SAME AREAS.

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.

TO REPORT ANY FLOODING TO THE NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3703 8470 3703 8436 3688 8419 3668 8422
      3673 8444 3685 8446 3695 8471

$$

RAY
1 follow-up statement
000 
WGUS73 KJKL 310035
FFSJKL

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
835 PM EDT WED JUL 30 2008

KYC125-147-199-231-235-310044-
/O.CAN.KJKL.FF.W.0021.000000T0000Z-080731T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PULASKI KY-LAUREL KY-WAYNE KY-WHITLEY KY-MCCREARY KY-
835 PM EDT WED JUL 30 2008

...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHEASTERN
MCCREARY...NORTHWESTERN WHITLEY...EXTREME NORTHEASTERN WAYNE...
EXTREME SOUTHWESTERN LAUREL AND SOUTHEASTERN PULASKI COUNTIES...

THERE HAVE NO REPORTS OF ANY FLOODING PROBLEMS IN THE AREA. 
THEREFORE THE FLOOD WARNING IS BEING CANCELLED. 

TO REPORT ANY FLOODING TO THE NATIONAL WEATHER SERVICE...CALL TOLL
FREE AT...1...8 7 7...6 3 3...6 7 7 2...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3703 8470 3703 8436 3688 8419 3668 8422
      3673 8444 3685 8446 3695 8471

$$

RAY

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 11:50 AM EDTSevere Thunderstorm WarningJKLEstill, Lee, Powell, Wolfe40 min
Jul 30, 12:46 PM EDTSevere Thunderstorm WarningJKLBreathitt, Lee, Owsley, Perry, Wolfe44 min
Jul 30, 1:31 PM EDTAreal Flood AdvisoryJKLKnott, Letcher, Perry3 hr
Jul 30, 1:40 PM EDTSevere Thunderstorm WarningJKLBreathitt, Floyd, Knott, Magoffin, Perry, Pike50 min
Jul 30, 1:49 PM EDTSevere Thunderstorm WarningJKLClay, Knox, Laurel41 min
Jul 30, 3:41 PM EDTAreal Flood AdvisoryJKLBell, Knox, Whitley4 hr
Jul 30, 4:32 PM EDTAreal Flood AdvisoryJKLMcCreary, Whitley3 hr
Jul 30, 4:34 PM EDTSevere Thunderstorm WarningJKLJackson, Laurel, Pulaski, Rockcastle56 min
Jul 30, 4:38 PM EDTAreal Flood AdvisoryJKLLaurel, Pulaski, Rockcastle3 hr
Jul 30, 4:44 PM EDTFlash Flood WarningJKLPulaski, Rockcastle2 hr
Jul 30, 4:44 PM EDTFlash Flood WarningJKLPulaski, Rockcastle111 min
Jul 30, 5:27 PM EDTSevere Thunderstorm WarningJKLLaurel, McCreary, Pulaski, Whitley63 min
Jul 30, 5:35 PM EDTSevere Thunderstorm WarningJKLMcCreary, Pulaski, Wayne25 min
Jul 30, 6:05 PM EDTSevere Thunderstorm WarningJKLMcCreary, Whitley25 min

Nearby

Flash Flood Warnings in Kentucky, 2008Every flash flood warning in 2008

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.