Alert archive / Kentucky / Special Weather Statements in 2021

Special Weather Statement, NWS Louisville, KY

December 6, 2021Hart County, Larue County, Kentucky

NWS Louisville, KY issued this special weather statement at Dec 6, 2021, 3:27 AM CST for Hart County, Larue County, Kentucky. It was in force for 33 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 6, 2021, 3:27 AM CST (09:27 UTC)
Expired: Dec 6, 2021, 4:00 AM CST
In force: 33 min
Issued by: NWS Louisville, KY
Hail: 0.00 in
Wind: 40

Counties Hart County, KY, Larue County, KY

The radar

The Louisville radar (KLVX), 67 km from the middle of the area, began a volume at 09:30 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

Nashville Metro, TN (KBNA), launched 00:00Z, 9.5 hours before the alert went out and 148 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: 666 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 346 m²/s²
0-3 km storm-relative helicity: 484 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 5.4

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 6, 2:23 AM CST, 1 hour 4 minutes earlier.

Area forecast discussion, Dec 6, 2:23 AM CST, 1 hour 4 minutes before

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Hazardous weather outlook, Dec 6, 2:52 AM CST, 35 minutes before

Hazardous Weather Outlook
National Weather Service Louisville KY
352 AM EST Mon Dec 6 2021

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-070900-
Orange-Washington-Scott-Jefferson-Dubois-Crawford-Perry-Harrison-
Floyd-Clark-Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt-
Oldham-Trimble-Henry-Shelby-Franklin-Spencer-Anderson-Woodford-
Fayette-Bourbon-Nicholas-Nelson-Mercer-Jessamine-Larue-Marion-Boyle-
Garrard-Madison-Butler-Edmonson-Hart-Green-Taylor-Casey-Lincoln-
Logan-Warren-Simpson-Allen-Barren-Monroe-Metcalfe-Adair-Russell-
Cumberland-Clinton-
Including the cities of Paoli, Salem, Scottsburg, Madison, Jasper,
English, Tell City, Corydon, New Albany, Jeffersonville, Lewisport,
Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield,
Elizabethtown, Shepherdsville, Louisville, La Grange, Bedford,
Milton, New Castle, Shelbyville, Frankfort, Georgetown, Cynthiana,
Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle,
Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester,
Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown,
Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty,
Stanford, Russellville, Bowling Green, Franklin, Providence,
Scottsville, Glasgow, Tompkinsville, Edmonton, Columbia, Jamestown,
Burkesville, and Albany
352 AM EST Mon Dec 6 2021 /252 AM CST Mon Dec 6 2021/

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Today and Tonight.

Isolated instances of gusty winds over 40 mph will be possible
through the early morning hours as widespread showers and storms move
through the area ahead of a cold front. Later today, gusts out of the
northwest will range between 25 and 35 mph.

In addition to the gusty winds, locally heavy rainfall early this
morning could lead to a few instances of nuisance flooding.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

There is potential for minor snow accumulation late Tuesday night
into Wednesday morning. Confidence remains low in amounts, but
overall impacts are expected to be minimal.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed to report instances of heavy rain or gusty
winds early this morning.

BJS

In the hours before

Special weather statement, Dec 5, 10:06 PM CST, 5 hours 21 minutes before

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Special weather statement, Dec 6, 1:02 AM CST, 2 hours 25 minutes before

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Special weather statement, Dec 6, 2:30 AM CST, 57 minutes before

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Special weather statement, Dec 6, 3:18 AM CST, 9 minutes before

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Special weather statement, Dec 6, 3:27 AM CST, 0 minutes before

Special Weather Statement
National Weather Service Louisville KY
427 AM EST Mon Dec 6 2021

KYZ028-045-053-054-063>065-061000-
Hart KY-Marion KY-Taylor KY-Nelson KY-Hardin KY-Larue KY-Green KY-
427 AM EST Mon Dec 6 2021

...Strong thunderstorms will impact portions of south central Nelson,
northwestern Green, Larue, southwestern Marion, northern Hart,
northwestern Taylor and southern Hardin Counties through 500 AM
EST/400 AM CST/...

At 427 AM EST/327 AM CST/, Doppler radar was tracking strong
thunderstorms along a line extending from near Hodgenville to 12
miles west of Munfordville. Movement was northeast at 50 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Strong thunderstorms will be near...
  Hodgenville around 430 AM EST.
  Munfordville around 335 AM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3731 8613 3732 8615 3734 8612 3733 8612
      3733 8610 3734 8611 3735 8610 3735 8608
      3734 8609 3734 8607 3738 8607 3739 8605
      3739 8603 3740 8603 3759 8575 3761 8524
      3727 8569
TIME...MOT...LOC 0927Z 246DEG 52KT 3754 8572 3734 8611

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

JML

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 5, 6:42 PM CST	Special Weather Statement	LMK	Barren	18 min
Dec 5, 6:45 PM CST	Special Weather Statement	LMK	Edmonson	15 min
Dec 5, 7:16 PM CST	Special Weather Statement	LMK	Hart	29 min
Dec 5, 7:57 PM CST	Special Weather Statement	LMK	Green	33 min
Dec 5, 8:30 PM CST	Special Weather Statement	LMK	Green, Taylor	30 min
Dec 5, 9:26 PM CST	Special Weather Statement	LMK	Butler, Grayson	34 min
Dec 5, 10:06 PM CST	Special Weather Statement	LMK	Edmonson, Grayson, Hart, Larue	54 min
Dec 6, 12:04 AM CST	Severe Thunderstorm Warning	LMK	Boyle, Marion	26 min
Dec 6, 12:36 AM CST	Severe Thunderstorm Warning	LMK	Boyle, Garrard	24 min
Dec 6, 1:02 AM CST	Special Weather Statement	LMK	Hancock	28 min
Dec 6, 2:30 AM CST	Special Weather Statement	LMK	Henry, Shelby	30 min
Dec 6, 3:18 AM CST	Special Weather Statement	LMK	Fayette, Scott, Woodford	27 min
Dec 6, 3:48 AM CST	Special Weather Statement	LMK	Bourbon, Clark, Fayette, Nicholas	42 min
Dec 6, 3:59 AM CST	Special Weather Statement	LMK	Marion	31 min
Dec 6, 4:13 AM CST	Special Weather Statement	LMK	Jessamine, Mercer	32 min
Dec 6, 4:43 AM CST	Tornado Warning	LMK	Logan	17 min
Dec 6, 4:47 AM CST	Tornado Warning	LMK	Logan	28 min
Dec 6, 5:04 AM CST	Special Weather Statement	LMK	Simpson	26 min
Dec 6, 5:15 AM CST	Special Weather Statement	LMK	Warren	30 min
Dec 6, 6:21 AM CST	Special Weather Statement	LMK	Cumberland	24 min
Dec 6, 6:23 AM CST	Special Weather Statement	LMK	Clinton	37 min
Dec 6, 6:46 AM CST	Special Weather Statement	LMK	Clinton	14 min
Dec 6, 7:42 AM CST	Areal Flood Advisory	LMK	Taylor	3 hr
Dec 6, 9:36 AM CST	Areal Flood Advisory	LMK	Boyle, Garrard, Marion	3 hr
Dec 6, 10:54 AM CST	River Flood Warning	LMK	Bourbon	23 hr
Dec 6, 12:11 PM CST	River Flood Advisory	LMK	Franklin	32 hr

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.