Alert archive / Kentucky / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 27, NWS Jackson, KY

April 29, 2014Floyd County, Letcher County, Pike County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Apr 29, 2014, 9:45 PM EDT for Floyd County, Letcher County, Pike County, Kentucky. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 29, 2014, 9:45 PM EDT (01:45 UTC)
Expired
Apr 29, 2014, 10:30 PM EDT
In force
45 min
Issued by
NWS Jackson, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Floyd County, KY, Letcher County, KY, Pike County, KY

The radar

The Jackson,KY radar (KJKL), 62 km from the middle of the area, began a volume at 01:47 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, 1.8 hours before the alert went out and 248 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 00:00Z on 2014-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 00:00Z on 2014-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -71 square meters per square second.1939587897117136156Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1255 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-71 m²/s²
0-3 km storm-relative helicity
153 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 severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 29, 9:16 PM EDT, 29 minutes earlier.

Area forecast discussion, Apr 29, 9:16 PM EDT, 29 minutes before
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Hazardous weather outlook, Apr 29, 4:15 PM EDT, 5 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE JACKSON KY
415 PM EDT TUE APR 29 2014

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-302315-
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
415 PM EDT TUE APR 29 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY.

.DAY ONE...TONIGHT.

NUMEROUS THUNDERSTORMS ARE EXPECTED THROUGH THE NIGHT. SOME
THUNDERSTORMS MAY BE SEVERE...MAINLY DURING THE EVENING. THE MAIN
THREAT FROM THE STORMS WILL BE DAMAGING WINDS AND LARGE HAIL...
THOUGH AN ISOLATED TORNADO CANNOT BE RULED OUT.

IN ADDITION...HEAVY RAINS WILL BE POSSIBLE THROUGH THE NIGHT. FROM
THIS...ISOLATED FLASH FLOODING COULD DEVELOP.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THUNDERSTORMS WILL BE POSSIBLE ON WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ARE ENCOURAGED TO CALL IN ANY REPORTS OF SEVERE WEATHER OR
FLOODING TONIGHT.

GREIF

In the hours before

Local storm report, Apr 29, 8:24 PM EDT, 1 hour 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
824 PM EDT TUE APR 29 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0821 PM     HAIL             PONGO                   37.22N 84.32W
04/29/2014  E0.75 INCH       ROCKCASTLE         KY   EMERGENCY MNGR

            EMERGENCY MANAGER RELAYED A FIRE DEPT REPORT OF PENNY
            SIZE HAIL AND HIGH WINDS. SPEED OF WINDS IS UNKNOWN.

&&

RAY
Local storm report, Apr 29, 8:25 PM EDT, 1 hour 20 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE JACKSON KY
825 PM EDT TUE APR 29 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0821 PM     HAIL             PONGO                   37.22N 84.32W
04/29/2014  E0.75 INCH       ROCKCASTLE         KY   EMERGENCY MNGR

            EMERGENCY MANAGER RELAYED A FIRE DEPT REPORT OF PENNY
            SIZE HAIL AND HIGH WINDS. SPEED OF WINDS IS UNKNOWN. NO
            REPORTS OF WIND DAMAGE AT THIS TIME.

&&

RAY
Local storm report, Apr 29, 8:29 PM EDT, 1 hour 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
829 PM EDT TUE APR 29 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 PM     HAIL             2 N STANTON             37.88N 83.86W
04/29/2014  E0.50 INCH       POWELL             KY   PUBLIC

            PEA TO HALF INCH HAIL REPORTED IN THE MORRIS CREEK
            COURTNEY AREA.

&&

RAY
Local storm report, Apr 29, 8:42 PM EDT, 1 hour 3 minutes before
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Special weather statement, Apr 29, 8:48 PM EDT, 57 minutes before
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Local storm report, Apr 29, 9:10 PM EDT, 35 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 29, 8:12 PM EDTSevere Thunderstorm WarningJKLJackson, Pulaski, Rockcastle48 min
Apr 29, 8:40 PM EDTSevere Thunderstorm WarningJKLEstill, Jackson, Laurel, Lee, Owsley, Rockcastle50 min
Apr 29, 9:15 PM EDTSevere Thunderstorm WarningJKLHarlan, Letcher, Perry45 min
Apr 29, 9:17 PM EDTSevere Thunderstorm WarningJKLFloyd, Knott, Letcher, Pike43 min
Apr 30, 12:02 AM EDTAreal Flood AdvisoryJKLBath, Fleming, Menifee, Montgomery, Rowan6 hr
Apr 30, 2:35 AM EDTAreal Flood AdvisoryJKLEstill, Jackson, Laurel, McCreary, Powell, Pulaski and 2 more6 hr
Apr 30, 5:50 AM EDTAreal Flood AdvisoryJKLBath, Elliott, Fleming, Menifee, Montgomery, Morgan and 3 more7 hr
Apr 30, 6:07 AM EDTAreal Flood AdvisoryJKLKnox, Whitley6 hr
Apr 30, 8:15 AM EDTAreal Flood WarningJKLJackson, Pulaski, Rockcastle6 hr
Apr 30, 8:37 AM EDTRiver Flood AdvisoryJKLEstill, Powell55 hr
Apr 30, 9:59 AM EDTRiver Flood AdvisoryJKLEstill3 days
Apr 30, 11:58 AM EDTAreal Flood WarningJKLPowell5 hr
Apr 30, 12:40 PM EDTRiver Flood AdvisoryJKLLee58 hr
Apr 30, 1:12 PM EDTAreal Flood WarningJKLFleming5 hr
Apr 30, 6:06 PM EDTAreal Flood WarningJKLFleming24 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2014Every severe thunderstorm warning 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.