Alert archive / Kentucky / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 66, NWS Jackson, KY

June 4, 2010Laurel County, Pulaski County, Rockcastle County, Kentucky

NWS Jackson, KY issued this severe thunderstorm warning at Jun 4, 2010, 6:53 PM EDT for Laurel County, Pulaski County, Rockcastle County, Kentucky. It was in force for 37 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 4, 2010, 6:53 PM EDT (22:53 UTC)
Expired: Jun 4, 2010, 7:30 PM EDT
In force: 37 min
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Laurel County, KY, Pulaski County, KY, Rockcastle County, KY

The radar

The Jackson,KY radar (KJKL), 101 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 253 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: 388 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 935 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 71 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 4, 3:35 PM EDT, 3 hours 18 minutes earlier.

Area forecast discussion, Jun 4, 3:35 PM EDT, 3 hours 18 minutes before

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Hazardous weather outlook, Jun 4, 4:15 PM EDT, 2 hours 38 minutes before

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In the hours before

Special weather statement, Jun 4, 3:50 PM EDT, 3 hours 3 minutes before

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Special weather statement, Jun 4, 3:57 PM EDT, 2 hours 56 minutes before

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Special weather statement, Jun 4, 4:07 PM EDT, 2 hours 46 minutes before

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Special weather statement, Jun 4, 4:33 PM EDT, 2 hours 20 minutes before

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Special weather statement, Jun 4, 4:42 PM EDT, 2 hours 11 minutes before

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Special weather statement, Jun 4, 6:47 PM EDT, 6 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 3, 8:17 PM EDT	Areal Flood Advisory	JKL	Breathitt, Clay, Jackson, Owsley, Perry	4 hr
Jun 3, 8:30 PM EDT	Severe Thunderstorm Warning	JKL	Knox, Laurel, McCreary, Pulaski, Whitley	30 min
Jun 3, 8:54 PM EDT	Flash Flood Warning	JKL	Clay, Jackson, Owsley	2 hr
Jun 3, 9:46 PM EDT	Areal Flood Advisory	JKL	Floyd, Pike	2 hr
Jun 4, 12:30 AM EDT	Areal Flood Advisory	JKL	McCreary	3 hr
Jun 4, 12:49 AM EDT	Areal Flood Advisory	JKL	Estill	4 hr
Jun 4, 5:00 AM EDT	Areal Flood Advisory	JKL	Estill	4 hr
Jun 4, 2:04 PM EDT	Flash Flood Warning	JKL	Estill	83 min
Jun 4, 2:11 PM EDT	Areal Flood Advisory	JKL	Breathitt, Owsley	2 hr
Jun 4, 2:51 PM EDT	Areal Flood Advisory	JKL	Pike	3 hr
Jun 4, 2:55 PM EDT	Flash Flood Warning	JKL	Pike	2 hr
Jun 4, 3:08 PM EDT	Severe Thunderstorm Warning	JKL	Johnson, Magoffin	37 min
Jun 4, 3:15 PM EDT	Flash Flood Watch	JKL	Bath, Breathitt, Elliott, Estill, Fleming, Floyd and 15 more	5 hr
Jun 4, 3:18 PM EDT	Severe Thunderstorm Warning	JKL	Elliott, Fleming, Rowan	27 min
Jun 4, 3:24 PM EDT	Areal Flood Advisory	JKL	Bath, Fleming, Rowan	66 min
Jun 4, 3:36 PM EDT	Severe Thunderstorm Warning	JKL	Harlan, Leslie, Letcher, Perry	32 min
Jun 4, 3:52 PM EDT	Areal Flood Advisory	JKL	McCreary	68 min
Jun 4, 4:00 PM EDT	Severe Thunderstorm Warning	JKL	Letcher, Pike	45 min
Jun 4, 4:58 PM EDT	Areal Flood Advisory	JKL	Breathitt, Clay, Jackson, Laurel, Leslie, Owsley and 1 more	4 hr
Jun 4, 5:02 PM EDT	Areal Flood Advisory	JKL	Bell, Knox, Whitley	3 hr
Jun 4, 6:56 PM EDT	Areal Flood Advisory	JKL	Laurel, Pulaski, Rockcastle, Wayne	2 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2010 Every severe thunderstorm warning in 2010

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.