Alert archive / Kentucky / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 154, NWS Louisville, KY

October 6, 2013Bourbon County, Nicholas County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Oct 6, 2013, 4:09 PM EDT for Bourbon County, Nicholas County, Kentucky. It was in force for 31 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: Oct 6, 2013, 4:09 PM EDT (20:09 UTC)
Expired: Oct 6, 2013, 4:40 PM EDT
In force: 31 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Bourbon County, KY, Nicholas County, KY

The radar

The Jackson,KY radar (KJKL), 103 km from the middle of the area, began a volume at 20:09 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

Pittsburgh, PA (KAGC), launched 12:00Z, 8.2 hours before the alert went out and 419 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: 561 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 845 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 87 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 6, 3:04 PM EDT, 1 hour 5 minutes earlier.

Area forecast discussion, Oct 6, 3:04 PM EDT, 1 hour 5 minutes before

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Hazardous weather outlook, Oct 6, 3:38 PM EDT, 31 minutes before

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In the hours before

Special weather statement, Oct 6, 2:36 PM EDT, 1 hour 33 minutes before

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Special weather statement, Oct 6, 2:38 PM EDT, 1 hour 31 minutes before

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Local storm report, Oct 6, 3:20 PM EDT, 49 minutes before

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Local storm report, Oct 6, 3:30 PM EDT, 39 minutes before

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Local storm report, Oct 6, 3:43 PM EDT, 26 minutes before

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Local storm report, Oct 6, 3:52 PM EDT, 17 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 5, 8:13 PM EDT	Areal Flood Advisory	LMK	Meade	3 hr
Oct 5, 9:24 PM EDT	Areal Flood Advisory	LMK	Jefferson	3 hr
Oct 5, 9:39 PM EDT	Flash Flood Watch	LMK	Anderson, Bourbon, Breckinridge, Bullitt, Clark, Fayette and 18 more	21 hr
Oct 5, 10:10 PM EDT	Flash Flood Warning	LMK	Jefferson	4 hr
Oct 5, 10:19 PM EDT	Areal Flood Advisory	LMK	Henry, Oldham, Trimble	4 hr
Oct 6, 12:14 AM EDT	Areal Flood Advisory	LMK	Henry, Shelby	3 hr
Oct 6, 1:45 AM EDT	Flash Flood Warning	LMK	Breckinridge, Hancock, Meade	4 hr
Oct 6, 1:57 AM EDT	Flash Flood Warning	LMK	Jefferson	5 hr
Oct 6, 3:09 AM EDT	Special Weather Statement	LMK	Jefferson	56 min
Oct 6, 3:14 AM EDT	Areal Flood Advisory	LMK	Henry, Oldham, Shelby, Trimble	5 hr
Oct 6, 3:55 AM EDT	Flash Flood Warning Emergency	LMK	Jefferson	5 hr
Oct 6, 5:46 AM EDT	Areal Flood Advisory	LMK	Breckinridge, Hancock, Meade	4 hr
Oct 6, 8:17 AM EDT	Areal Flood Advisory	LMK	Henry, Oldham, Shelby, Trimble	3 hr
Oct 6, 8:45 AM EDT	Areal Flood Warning	LMK	Jefferson	5 hr
Oct 6, 1:33 PM EDT	Special Weather Statement	LMK	Adair, Boyle, Cumberland, Green, Marion, Mercer and 4 more	47 min
Oct 6, 2:36 PM EDT	Special Weather Statement	LMK	Adair, Casey, Clinton, Cumberland, Russell	29 min
Oct 6, 2:38 PM EDT	Special Weather Statement	LMK	Boyle, Clark, Fayette, Garrard, Jessamine, Lincoln and 4 more	62 min
Oct 6, 3:07 PM EDT	Severe Thunderstorm Warning	LMK	Bourbon, Fayette, Scott	28 min
Oct 6, 3:09 PM EDT	Severe Thunderstorm Warning	LMK	Garrard, Jessamine, Mercer, Woodford	31 min
Oct 6, 3:51 PM EDT	Areal Flood Advisory	LMK	Bourbon, Fayette, Harrison, Jessamine, Nicholas, Scott	3 hr
Oct 6, 4:12 PM EDT	Special Weather Statement	LMK	Clark	18 min
Oct 6, 4:29 PM EDT	Special Weather Statement	LMK	Clark, Madison	46 min
Oct 6, 4:33 PM EDT	Severe Thunderstorm Warning	LMK	Clark, Madison	32 min
Oct 6, 4:53 PM EDT	Special Weather Statement	LMK	Madison	22 min
Oct 5, 8:48 PM EDT	Special Weather Statement	LMK	Clark, Floyd	47 min
Oct 6, 12:49 AM EDT	Special Weather Statement	LMK	Dubois, Perry	61 min
Oct 6, 1:13 AM EDT	Severe Thunderstorm Warning	LMK	Dubois	32 min
Oct 6, 1:48 AM EDT	Areal Flood Advisory	LMK	Crawford, Dubois, Orange, Washington	4 hr
Oct 6, 2:40 AM EDT	Severe Thunderstorm Warning	LMK	Orange, Washington	45 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2013 Every severe thunderstorm warning in 2013

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.