Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Louisville, KY

December 11, 202112 counties in Kentucky

NWS Louisville, KY issued this special weather statement at Dec 11, 2021, 11:10 AM EST for 12 counties in Kentucky. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Dec 11, 2021, 11:10 AM EST (16:10 UTC)
Expired: Dec 11, 2021, 12:15 PM EST
In force: 65 min
Issued by: NWS Louisville, KY
Hail: 0.00 in
Wind: 40

Counties Anderson County, KY, Bourbon County, KY, Clark County, KY, Fayette County, KY, Harrison County, KY, Jessamine County, KY, Madison County, KY, Mercer County, KY, Nicholas County, KY, Scott County, KY, Washington County, KY, Woodford County, KY

The radar

The Jackson,KY radar (KJKL), 97 km from the middle of the area, began a volume at 16:10 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, 4.2 hours before the alert went out and 151 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: 7 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 761 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 205 m²/s²
0-3 km storm-relative helicity: 205 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Dec 11, 6:20 AM EST, 4 hours 50 minutes earlier.

Area forecast discussion, Dec 11, 6:20 AM EST, 4 hours 50 minutes before

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Hazardous weather outlook, Dec 11, 6:52 AM EST, 4 hours 18 minutes before

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In the hours before

Local storm report, Dec 11, 9:23 AM EST, 1 hour 47 minutes before

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Local storm report, Dec 11, 9:27 AM EST, 1 hour 43 minutes before

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Local storm report, Dec 11, 10:15 AM EST, 55 minutes before

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Special weather statement, Dec 11, 10:18 AM EST, 52 minutes before

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Local storm report, Dec 11, 10:40 AM EST, 30 minutes before

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Special weather statement, Dec 11, 11:10 AM EST, 0 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 10, 8:20 PM EST	Special Weather Statement	LMK	Ohio	55 min
Dec 10, 8:48 PM EST	Tornado Warning	LMK	Ohio	57 min
Dec 10, 9:04 PM EST	Special Weather Statement	LMK	Breckinridge	56 min
Dec 10, 9:24 PM EST	Severe Thunderstorm Warning	LMK	Breckinridge, Hancock	36 min
Dec 10, 9:32 PM EST	Tornado Warning	LMK	Ohio	30 min
Dec 10, 10:21 PM EST	Tornado Warning	LMK	Ohio	39 min
Dec 10, 10:29 PM EST	Special Weather Statement	LMK	Breckinridge	31 min
Dec 10, 10:37 PM EST	Tornado Warning	LMK	Breckinridge, Hardin, Meade	17 min
Dec 10, 11:42 PM EST	Tornado Warning Tornado observedConsiderable damage threat	LMK	Ohio	63 min
Dec 11, 12:07 AM EST	Tornado Warning Tornado observedConsiderable damage threat	LMK	Breckinridge, Grayson, Hancock	53 min
Dec 11, 12:51 AM EST	Tornado Warning Tornado observedConsiderable damage threat	LMK	Breckinridge, Hardin, Meade	39 min
Dec 11, 1:29 AM EST	Special Weather Statement	LMK	Spencer	16 min
Dec 11, 1:30 AM EST	Special Weather Statement	LMK	Bullitt	15 min
Dec 11, 1:33 AM EST	Special Weather Statement	LMK	Henry, Jefferson, Oldham, Shelby, Trimble	27 min
Dec 11, 1:36 AM EST	Tornado Warning Tornado observed	LMK	Logan, Simpson	39 min
Dec 11, 1:41 AM EST	Severe Thunderstorm Warning	LMK	Bullitt, Nelson, Spencer	34 min
Dec 11, 1:44 AM EST	Tornado Warning	LMK	Bullitt, Nelson, Shelby, Spencer	46 min
Dec 11, 1:58 AM EST	Tornado Warning Tornado observed	LMK	Butler, Edmonson, Logan, Simpson, Warren	47 min
Dec 11, 2:27 AM EST	Tornado Warning Tornado observed	LMK	Barren, Butler, Edmonson, Hart, Metcalfe, Warren	48 min
Dec 11, 2:28 AM EST	Tornado Warning	LMK	Franklin, Scott	20 min
Dec 11, 2:45 AM EST	Special Weather Statement	LMK	Bullitt, Hardin, Larue, Nelson, Spencer	30 min
Dec 11, 2:55 AM EST	Tornado Warning	LMK	Barren, Green, Hart, Larue, Marion, Metcalfe and 1 more	50 min
Dec 11, 3:08 AM EST	Areal Flood Advisory	LMK	Breckinridge, Bullitt, Hardin, Jefferson, Meade	115 min
Dec 11, 3:16 AM EST	Severe Thunderstorm Warning	LMK	Anderson, Franklin, Harrison, Henry, Nelson, Scott and 3 more	29 min
Dec 11, 3:16 AM EST	Severe Thunderstorm Warning Considerable damage threat	LMK	Butler, Logan, Simpson, Warren	44 min
Dec 11, 3:22 AM EST	Tornado Warning Tornado observed	LMK	Boyle, Casey, Larue, Lincoln, Marion, Mercer and 1 more	38 min
Dec 11, 3:59 AM EST	Tornado Warning	LMK	Boyle, Casey, Garrard, Jessamine, Lincoln, Madison and 1 more	46 min
Dec 11, 4:00 AM EST	Flash Flood Warning	LMK	Barren, Butler, Edmonson, Green, Hart, Logan and 3 more	6 hr
Dec 11, 4:10 AM EST	Areal Flood Advisory	LMK	Anderson, Bullitt, Franklin, Harrison, Jefferson, Nelson and 3 more	4 hr
Dec 11, 4:13 AM EST	Severe Thunderstorm Warning	LMK	Allen, Barren, Butler, Edmonson, Hart, Logan and 2 more	32 min
Dec 11, 4:20 AM EST	Severe Thunderstorm Warning	LMK	Bourbon, Clark, Fayette, Harrison, Jessamine, Nicholas and 2 more	25 min
Dec 11, 4:38 AM EST	Severe Thunderstorm Warning	LMK	Clark, Madison	37 min
Dec 11, 4:43 AM EST	Areal Flood Advisory	LMK	Adair, Boyle, Casey, Garrard, Green, Lincoln and 3 more	4 hr
Dec 11, 4:47 AM EST	Severe Thunderstorm Warning	LMK	Allen, Barren, Edmonson, Grayson, Green, Hardin and 7 more	28 min
Dec 11, 4:56 AM EST	Flash Flood Warning	LMK	Breckinridge, Bullitt, Franklin, Grayson, Hancock, Hardin and 6 more	3 hr
Dec 11, 5:01 AM EST	Tornado Warning	LMK	Garrard, Madison	18 min
Dec 11, 5:18 AM EST	Severe Thunderstorm Warning	LMK	Adair, Allen, Barren, Casey, Cumberland, Green and 5 more	42 min
Dec 11, 5:23 AM EST	Tornado Warning	LMK	Clark, Garrard, Lincoln, Madison	37 min
Dec 11, 5:27 AM EST	Tornado Warning	LMK	Cumberland, Monroe	33 min
Dec 11, 5:52 AM EST	Tornado Warning	LMK	Casey, Clinton, Cumberland, Russell	23 min
Dec 11, 5:58 AM EST	Severe Thunderstorm Warning	LMK	Adair, Boyle, Casey, Clark, Fayette, Garrard and 6 more	32 min
Dec 11, 5:58 AM EST	Severe Thunderstorm Warning	LMK	Adair, Boyle, Casey, Green, Lincoln, Marion and 2 more	32 min
Dec 11, 6:28 AM EST	Severe Thunderstorm Warning	LMK	Clark, Garrard, Lincoln, Madison	32 min
Dec 11, 8:42 AM EST	Areal Flood Warning	LMK	Garrard, Lincoln, Madison	3 hr
Dec 11, 10:18 AM EST	Special Weather Statement	LMK	Anderson, Franklin, Henry, Nelson, Shelby, Spencer and 1 more	27 min
Dec 11, 2:01 AM EST	Special Weather Statement	LMK	Crawford	14 min

Nearby

Special Weather Statements in Kentucky, 2021 Every special weather statement in 2021

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.