Alert archive / Kentucky / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 110, NWS Jackson, KY

July 24, 2007Letcher County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Jul 24, 2007, 3:57 PM EDT for Letcher 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: Jul 24, 2007, 3:57 PM EDT (19:57 UTC)
Expired: Jul 24, 2007, 4:42 PM EDT
In force: 45 min
Issued by: NWS Jackson, KY
Area: Counties, with a storm outline in the text

County Letcher County, KY

The radar

The Jackson,KY radar (KJKL), 66 km from the middle of the area, began a volume at 19:59 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, 8.0 hours before the alert went out and 270 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: 9 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 1636 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: -14 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 Jul 24, 3:44 PM EDT, 13 minutes earlier.

Area forecast discussion, Jul 24, 3:44 PM EDT, 13 minutes before

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Hazardous weather outlook, Jul 24, 3:49 AM EDT, 12 hours 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE JACKSON KY
349 AM EDT TUE JUL 24 2007

KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-251100-
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-
349 AM EDT TUE JUL 24 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY.

.DAY ONE...TODAY AND TONIGHT.

SCATTERED THUNDERSTORMS ARE EXPECTED TODAY...MAINLY IN THE AFTERNOON AND
EARLY EVENING. THERE IS A VERY SLIGHT RISK THAT ONE OR TWO STORMS MAY
REACH SEVERE LIMITS.

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

SCATTERED THUNDERSTORMS WILL BE POSSIBLE EACH DAY FROM WEDNESDAY
THROUGH MONDAY...ESPECIALLY DURING THE AFTERNOON AND EVENING HOURS.
LOCALLY HEAVY RAINFALL WILL BE POSSIBLE...AND DEPENDING ON WHICH
AREAS SEE REPEATED ROUNDS OF HEAVY RAINS...ISOLATED FLASH FLOODING
WILL BE A THREAT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

JJ

In the hours before

Local storm report, Jul 24, 10:19 AM EDT, 5 hours 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
1019 AM EDT TUE JUL 24 2007

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

0500 PM     HAIL             5 SW PINEVILLE          36.71N 83.77W
07/23/2007  E0.75 INCH       BELL               KY   PARK/FOREST SRVC

            PENNY SIZE HAIL REPORTED WITH FIRST STORM THAT MOVED OVER
            THE PARK

&&

WJM

Local storm report, Jul 24, 10:20 AM EDT, 5 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
1020 AM EDT TUE JUL 24 2007

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

0520 PM     HAIL             5 SW PINEVILLE          36.71N 83.77W
07/23/2007  E0.75 INCH       BELL               KY   PARK/FOREST SRVC

            PENNY SIZE HAIL REPORTED WITH SECOND STORM THAT MOVED
            OVER THE PARK

&&

WJM

Local storm report, Jul 24, 10:22 AM EDT, 5 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JACKSON KY
1022 AM EDT TUE JUL 24 2007

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

0526 PM     TSTM WND DMG     CUBAGE                  36.70N 83.52W
07/23/2007                   BELL               KY   DEPT OF HIGHWAYS

            1 TREE DOWN ON HWY 987

&&

WJM

Local storm report, Jul 24, 2:16 PM EDT, 1 hour 41 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
Jul 24, 2:12 PM EDT	Severe Thunderstorm Warning	JKL	Clay, Knox, Laurel	33 min
Jul 24, 2:46 PM EDT	Severe Thunderstorm Warning	JKL	Clay, Knox	29 min
Jul 24, 3:21 PM EDT	Severe Thunderstorm Warning	JKL	Clay, Leslie	54 min
Jul 24, 3:53 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Perry	48 min
Jul 24, 4:11 PM EDT	Severe Thunderstorm Warning	JKL	Leslie	19 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2007 Every severe thunderstorm warning in 2007

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.