Alert archive / Kentucky / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 381, NWS Louisville, KY

December 23, 20154 counties in Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Dec 23, 2015, 10:14 PM CST for 4 counties in Kentucky. It was in force for 36 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: Dec 23, 2015, 10:14 PM CST (04:14 UTC)
Expired: Dec 23, 2015, 10:50 PM CST
In force: 36 min
Issued by: NWS Louisville, KY
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Adair County, KY, Cumberland County, KY, Metcalfe County, KY, Russell County, KY

The radar

The Louisville radar (KLVX), 124 km from the middle of the area, began a volume at 04:16 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
Dec 23, 6:25 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.2 hours before the alert went out and 146 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: 26 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 624 m above ground
0-6 km bulk shear: 89 kt
0-1 km storm-relative helicity: 598 m²/s²
0-3 km storm-relative helicity: 698 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

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 Dec 23, 9:44 PM CST, 30 minutes earlier.

Area forecast discussion, Dec 23, 9:44 PM CST, 30 minutes before

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Hazardous weather outlook, Dec 23, 9:52 PM CST, 22 minutes before

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In the hours before

Local storm report, Dec 23, 7:55 PM CST, 2 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE LOUISVILLE KY
855 PM EST WED DEC 23 2015

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

0850 PM     TSTM WND GST     3 ENE PROVIDENCE        36.69N 86.63W
12/23/2015  M63 MPH          SIMPSON            KY   MESONET

&&

MRC

Local storm report, Dec 23, 8:07 PM CST, 2 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
907 PM EST WED DEC 23 2015

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

0850 PM     TSTM WND GST     4 NE ALTON              38.12N 84.88W
12/23/2015  M63 MPH          FRANKLIN           KY   MESONET

&&

MRC

Local storm report, Dec 23, 8:17 PM CST, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
917 PM EST WED DEC 23 2015

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

0835 PM     TSTM WND DMG     SADIEVILLE              38.39N 84.54W
12/23/2015                   SCOTT              KY   PUBLIC

            SEVERAL SMALL TREES DOWN.

&&

MRC

Local storm report, Dec 23, 8:47 PM CST, 1 hour 27 minutes before

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Special weather statement, Dec 23, 9:58 PM CST, 16 minutes before

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Special weather statement, Dec 23, 10:00 PM CST, 14 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
Dec 23, 6:00 PM CST	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hardin	30 min
Dec 23, 6:05 PM CST	Severe Thunderstorm Warning	LMK	Henry, Jefferson, Oldham, Shelby, Trimble	40 min
Dec 23, 6:12 PM CST	Severe Thunderstorm Warning	LMK	Butler, Edmonson, Grayson, Logan, Ohio, Warren	33 min
Dec 23, 6:17 PM CST	Severe Thunderstorm Warning	LMK	Bullitt, Hardin, Jefferson, Nelson, Shelby, Spencer	43 min
Dec 23, 6:29 PM CST	Flash Flood Warning	LMK	Jefferson	3 hr
Dec 23, 6:30 PM CST	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hardin, Meade	30 min
Dec 23, 6:45 PM CST	Severe Thunderstorm Warning	LMK	Butler, Edmonson, Grayson, Logan, Warren	30 min
Dec 23, 6:50 PM CST	Tornado Warning	LMK	Butler, Edmonson, Warren	25 min
Dec 23, 6:58 PM CST	Severe Thunderstorm Warning	LMK	Anderson, Bullitt, Franklin, Nelson, Shelby, Spencer	47 min
Dec 23, 7:06 PM CST	Tornado Warning	LMK	Edmonson, Grayson, Hart	24 min
Dec 23, 7:23 PM CST	Severe Thunderstorm Warning	LMK	Grayson, Green, Hardin, Hart, Larue, Marion and 1 more	37 min
Dec 23, 7:24 PM CST	Severe Thunderstorm Warning	LMK	Anderson, Franklin, Henry, Scott, Shelby, Woodford	36 min
Dec 23, 7:39 PM CST	Severe Thunderstorm Warning	LMK	Allen, Simpson, Warren	36 min
Dec 23, 7:59 PM CST	Severe Thunderstorm Warning	LMK	Bourbon, Fayette, Harrison, Nicholas, Scott, Woodford	46 min
Dec 23, 8:34 PM CST	Areal Flood Advisory	LMK	Fayette, Jessamine, Woodford	3 hr
Dec 23, 8:38 PM CST	Severe Thunderstorm Warning	LMK	Green, Hart, Larue, Taylor	22 min
Dec 23, 8:41 PM CST	Severe Thunderstorm Warning	LMK	Adair, Green, Hart, Metcalfe	19 min
Dec 23, 9:01 PM CST	Severe Thunderstorm Warning	LMK	Green, Taylor	29 min
Dec 23, 9:18 PM CST	Areal Flood Advisory	LMK	Bourbon, Harrison, Nicholas, Scott	3 hr
Dec 23, 9:19 PM CST	Areal Flood Advisory	LMK	Anderson, Mercer, Washington	3 hr
Dec 23, 9:50 PM CST	River Flood Advisory	LMK	Bourbon	36 hr
Dec 23, 9:58 PM CST	Special Weather Statement	LMK	Adair, Casey, Lincoln	47 min
Dec 23, 10:00 PM CST	Special Weather Statement	LMK	Adair, Casey, Lincoln	45 min
Dec 23, 10:03 PM CST	Severe Thunderstorm Warning	LMK	Adair, Casey	27 min
Dec 23, 10:20 PM CST	Severe Thunderstorm Warning	LMK	Casey, Lincoln	40 min
Dec 23, 10:57 PM CST	Severe Thunderstorm Warning	LMK	Clinton	33 min
Dec 23, 11:02 PM CST	Special Weather Statement	LMK	Garrard, Lincoln, Madison	43 min
Dec 24, 9:14 AM CST	River Flood Warning	LMK	Hardin, Nelson	5 days
Dec 24, 1:17 PM CST	River Flood Advisory	LMK	Nicholas, Robertson	52 hr
Dec 23, 6:39 PM CST	Flash Flood Warning	LMK	Clark, Floyd	3 hr

Nearby

Severe Thunderstorm Warnings in Kentucky, 2015 Every severe thunderstorm warning in 2015

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.