Alert archive / Kentucky / Flash Flood Watches in 2014

Flash Flood Watch 1, NWS Jackson, KY

April 3, 201433 counties in Kentucky

NWS Jackson, KY issued this flash flood watch at Apr 3, 2014, 12:30 PM EDT for 33 counties in Kentucky. It took effect at Apr 3, 2014, 4:00 PM EDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued: Apr 3, 2014, 12:30 PM EDT (16:30 UTC)
In effect from: Apr 3, 2014, 4:00 PM EDT
Expired: Apr 4, 2014, 3:50 PM EDT
In force: 24 hr
Issued by: NWS Jackson, KY
Flood severity: None

All 33 counties

Bath County, KY, Bell County, KY, Breathitt County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY

The radar

The Jackson,KY radar (KJKL), 26 km from the middle of the area, began a volume at 16:33 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, 4.5 hours before the alert went out and 218 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 798 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 231 m²/s²
0-3 km storm-relative helicity: 273 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Jackson, KY wrote its last area forecast discussion before this flash flood watch went out at Apr 3, 11:14 AM EDT, 1 hour 16 minutes earlier.

Area forecast discussion, Apr 3, 11:14 AM EDT, 1 hour 16 minutes before

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Hazardous weather outlook, Apr 3, 11:50 AM EDT, 40 minutes before

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In the hours before

Special weather statement, Apr 3, 11:03 AM EDT, 1 hour 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE JACKSON KY
1103 AM EDT THU APR 3 2014

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-032200-
FLEMING-MONTGOMERY-BATH-ROWAN-ESTILL-POWELL-MENIFEE-ROCKCASTLE-
JACKSON-PULASKI-LAUREL-WAYNE-MCCREARY-WHITLEY-KNOX-BELL-HARLAN-
ELLIOTT-MORGAN-JOHNSON-WOLFE-MAGOFFIN-FLOYD-LEE-BREATHITT-KNOTT-
OWSLEY-PERRY-CLAY-LESLIE-LETCHER-MARTIN-PIKE-
INCLUDING THE CITIES OF...FLEMINGSBURG...MOUNT STERLING...
OWINGSVILLE...MOREHEAD...IRVINE...STANTON...FRENCHBURG...
MOUNT VERNON...MCKEE...SOMERSET...LONDON...MONTICELLO...
WHITLEY CITY...CORBIN...WILLIAMSBURG...BARBOURVILLE...MIDDLESBORO...
PINEVILLE...HARLAN...SANDY HOOK...WEST LIBERTY...PAINTSVILLE...
CAMPTON...SALYERSVILLE...PRESTONSBURG...BEATTYVILLE...JACKSON...
HINDMAN...BOONEVILLE...HAZARD...MANCHESTER...HYDEN...WHITESBURG...
INEZ...PIKEVILLE
1103 AM EDT THU APR 3 2014

...SLIGHT RISK OF SEVERE THUNDERSTORMS LATER TODAY AND THIS EVENING
AND AGAIN ON FRIDAY...

THE THREAT FOR STRONG TO POTENTIALLY SEVERE THUNDERSTORMS IS
INCREASING LATER TODAY. AFTER A BRIEF BREAK IN THE SHOWER ACTIVITY
AND SOME PEEKS OF SUNSHINE DURING THE EARLY AFTERNOON HOURS...
ANOTHER ROUND OF THUNDERSTORMS IS FORECAST TO IMPACT EASTERN
KENTUCKY LATE IN THE AFTERNOON AND INTO THE EARLY EVENING HOURS.
THIS SECOND ROUND OF THUNDERSTORMS COULD BECOME SEVERE WITH DAMAGING
WINDS AND LARGE HAIL THE PRIMARY THREAT. LOCALLY HEAVY RAINFALL IS
ALSO POSSIBLE WHERE THUNDERSTORMS PASS REPEATEDLY OVER THE SAME
AREAS.

A COLD FRONT WILL THEN APPROACH EASTERN KENTUCKY LATE TONIGHT...WITH
A LINE OF SHOWERS AND THUNDERSTORMS DEVELOPING OUT AHEAD OF THE
FRONT. THIS LINE OF STORMS WILL ENTER EASTERN KENTUCKY EARLY FRIDAY
MORNING...AND EXIT THE AREA BY EARLY AFTERNOON. SOME OF THE STORMS
WILL APPROACH SEVERE LIMITS...WITH DAMAGING WINDS THE MAIN THREAT ON
FRIDAY.

ADDITIONALLY...STRONG WIND GUSTS OF 30 TO 40 MPH WILL DEVELOP ALONG
AND BEHIND THE FRONT AS IT MOVES THROUGH ON FRIDAY.

LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR THE LATER
UPDATES ON THIS SITUATION.

GEOGERIAN/ABE

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 4:17 PM EDT	Severe Thunderstorm Warning	JKL	Magoffin, Menifee, Morgan, Wolfe	28 min
Apr 3, 4:24 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Floyd, Johnson, Lee, Magoffin, Wolfe	36 min
Apr 3, 4:53 PM EDT	Severe Thunderstorm Warning	JKL	Elliott, Floyd, Johnson, Magoffin, Martin, Morgan and 1 more	52 min
Apr 3, 4:58 PM EDT	Severe Thunderstorm Warning	JKL	Estill, Jackson, Lee, Owsley, Rockcastle	47 min
Apr 3, 7:47 PM EDT	Areal Flood Advisory	JKL	Clay, Estill, Jackson, Laurel, Lee, Owsley and 2 more	9 hr
Apr 3, 7:55 PM EDT	Areal Flood Advisory	JKL	Breathitt, Floyd, Johnson, Knott, Magoffin, Martin and 3 more	9 hr

Nearby

Flash Flood Watches in Kentucky, 2014 Every flash flood watch in 2014

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.