Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 142, NWS Jackson, KY

June 16, 2009Harlan County, Letcher County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Jun 16, 2009, 6:42 PM EDT for Harlan County, Letcher County, Kentucky. It was in force for 32 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: Jun 16, 2009, 6:42 PM EDT (22:42 UTC)
Expired: Jun 16, 2009, 7:14 PM EDT
In force: 32 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon

Counties Harlan County, KY, Letcher County, KY

The radar

The Jackson,KY radar (KJKL), 71 km from the middle of the area, began a volume at 22:43 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 16, 2:42 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.7 hours before the alert went out and 280 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: 1596 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 80 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 Jun 16, 6:10 PM EDT, 32 minutes earlier.

Area forecast discussion, Jun 16, 6:10 PM EDT, 32 minutes before

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Hazardous weather outlook, Jun 16, 4:16 AM EDT, 14 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON KY
416 AM EDT TUE JUN 16 2009

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-171115-
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-
416 AM EDT TUE JUN 16 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY.

.DAY ONE...TODAY AND TONIGHT.

THUNDERSTORMS ARE POSSIBLE TODAY AND TONIGHT. SOME OF THESE
THUNDERSTORMS COULD BECOME SEVERE THIS AFTERNOON AND EVENING WITH
DAMAGING WINDS BEING THE MAIN THREAT. IN ADDITION...A SATURATED
GROUND COMBINED WITH THE POTENTIAL OF HEAVY RAINFALL IN THE STRONGEST
THUNDERSTORMS COULD LEAD TO SOME LOCALIZED FLOODING PROBLEMS.

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

THUNDERSTORMS WILL BE POSSIBLE FOR MOST LOCATIONS...MAINLY IN THE
AFTERNOON AND EVENING HOURS FROM WEDNESDAY THROUGH SUNDAY. AN
ALREADY WET GROUND FROM RECENT RAINFALL...COMBINED WITH THE POTENTIAL
FOR SEVERAL ROUNDS OF RAIN THIS WEEK COULD PRODUCE SOME LOCALIZED
FLOODING PROBLEMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

RAY

In the hours before

Local storm report, Jun 16, 6:06 PM EDT, 36 minutes before

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Local storm report, Jun 16, 6:12 PM EDT, 30 minutes before

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Local storm report, Jun 16, 6:15 PM EDT, 27 minutes before

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Local storm report, Jun 16, 6:29 PM EDT, 13 minutes before

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Special weather statement, Jun 16, 6:32 PM EDT, 10 minutes before

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Local storm report, Jun 16, 6:39 PM EDT, 3 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 10:10 PM EDT	Areal Flood Advisory	JKL	Bath	65 min
Jun 15, 11:16 PM EDT	Areal Flood Advisory	JKL	Bath, Fleming, Rowan	52 min
Jun 16, 4:26 PM EDT	Severe Thunderstorm Warning	JKL	Laurel, McCreary, Pulaski, Rockcastle, Wayne, Whitley	49 min
Jun 16, 4:48 PM EDT	Tornado Warning	JKL	McCreary, Pulaski, Wayne	27 min
Jun 16, 5:02 PM EDT	Tornado Warning	JKL	Pulaski, Rockcastle	28 min
Jun 16, 5:08 PM EDT	Tornado Warning	JKL	Knox, Laurel, McCreary, Pulaski, Rockcastle, Wayne and 1 more	37 min
Jun 16, 5:13 PM EDT	Severe Thunderstorm Warning	JKL	Knox, Laurel, McCreary, Pulaski, Rockcastle, Wayne and 1 more	47 min
Jun 16, 5:29 PM EDT	Tornado Warning	JKL	Bell, Clay, Knox, Laurel, McCreary, Whitley	31 min
Jun 16, 5:36 PM EDT	Severe Thunderstorm Warning	JKL	Bell, Clay, Jackson, Knox, Laurel, Leslie and 1 more	39 min
Jun 16, 5:42 PM EDT	Tornado Warning	JKL	Clay, Knox, Laurel, Whitley	33 min
Jun 16, 5:46 PM EDT	Areal Flood Advisory	JKL	Pulaski, Rockcastle, Wayne	83 min
Jun 16, 5:55 PM EDT	Tornado Warning	JKL	Clay, Jackson, Laurel, Owsley, Rockcastle	35 min
Jun 16, 6:04 PM EDT	Severe Thunderstorm Warning	JKL	Bell, Clay, Harlan, Leslie, Letcher, Owsley and 1 more	41 min
Jun 16, 6:37 PM EDT	Severe Thunderstorm Warning	JKL	Harlan, Knott, Leslie, Letcher, Perry	38 min
Jun 16, 7:13 PM EDT	Tornado Warning	JKL	Breathitt, Estill, Lee, Menifee, Powell, Wolfe	32 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2009 Every severe thunderstorm warning in 2009

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.