Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 100, NWS Louisville, KY

December 10, 2021Breckinridge County, Hancock County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Dec 10, 2021, 8:24 PM CST for Breckinridge County, Hancock County, 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 outline as issued.

The facts

Issued
Dec 10, 2021, 8:24 PM CST (02:24 UTC)
Expired
Dec 10, 2021, 9:00 PM CST
In force
36 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Breckinridge County, KY, Hancock County, KY

The radar

The Louisville radar (KLVX), 56 km from the middle of the area, began a volume at 02:23 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.

IssuedProductOfficeLasted
Dec 10, 6:21 PM CSTTornado WatchSPC10 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.4 hours before the alert went out and 182 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-pSkew-T log-p diagram, Nashville Metro, TN at 00:00Z on 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 182 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 00:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 391 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
182 J/kg
Mixed-layer CIN
-168 J/kg
Mixed-layer LCL
593 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
391 m²/s²
0-3 km storm-relative helicity
370 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

988 
WUUS53 KLMK 110224
SVRLMK
KYC027-091-110300-
/O.NEW.KLMK.SV.W.0100.211211T0224Z-211211T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Louisville KY
824 PM CST Fri Dec 10 2021

The National Weather Service in Louisville has issued a

* Severe Thunderstorm Warning for...
  Southeastern Hancock County in central Kentucky...
  Breckinridge County in central Kentucky...

* Until 900 PM CST.

* At 822 PM CST, a severe thunderstorm was located 9 miles east of 
  Whitesville, moving northeast at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Hardinsburg around 840 PM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 200 AM CST for central
Kentucky.

For your protection move to an interior room on the lowest floor of a
building.

A Tornado Watch remains in effect until 200 AM CST for central
Kentucky.

&&

LAT...LON 3774 8681 3797 8639 3788 8625 3780 8615
      3774 8619 3762 8664 3766 8664 3773 8680
TIME...MOT...LOC 0222Z 242DEG 49KT 3768 8669 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

DM
1 follow-up statement
658 
WWUS53 KLMK 110250
SVSLMK

Severe Weather Statement
National Weather Service Louisville KY
850 PM CST Fri Dec 10 2021

KYC027-091-110300-
/O.EXP.KLMK.SV.W.0100.000000T0000Z-211211T0300Z/
Hancock KY-Breckinridge KY-
850 PM CST Fri Dec 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HANCOCK AND
BRECKINRIDGE COUNTIES WILL EXPIRE AT 900 PM CST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 200 AM CST for central
Kentucky.

LAT...LON 3774 8681 3797 8639 3788 8625 3780 8615
      3774 8619 3762 8664 3766 8664 3773 8680
TIME...MOT...LOC 0250Z 242DEG 49KT 3785 8629 

$$

DM

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 7:20 PM CSTSpecial Weather StatementLMKOhio55 min
Dec 10, 7:48 PM CSTTornado WarningLMKOhio57 min
Dec 10, 8:04 PM CSTSpecial Weather StatementLMKBreckinridge56 min
Dec 10, 8:32 PM CSTTornado WarningLMKOhio30 min
Dec 10, 9:21 PM CSTTornado WarningLMKOhio39 min
Dec 10, 9:29 PM CSTSpecial Weather StatementLMKBreckinridge31 min
Dec 10, 9:37 PM CSTTornado WarningLMKBreckinridge, Hardin, Meade17 min
Dec 10, 10:42 PM CSTTornado Warning Tornado observedConsiderable damage threatLMKOhio63 min
Dec 10, 11:07 PM CSTTornado Warning Tornado observedConsiderable damage threatLMKBreckinridge, Grayson, Hancock53 min
Dec 10, 11:51 PM CSTTornado Warning Tornado observedConsiderable damage threatLMKBreckinridge, Hardin, Meade39 min
Dec 11, 12:29 AM CSTSpecial Weather StatementLMKSpencer16 min
Dec 11, 12:30 AM CSTSpecial Weather StatementLMKBullitt15 min
Dec 11, 12:33 AM CSTSpecial Weather StatementLMKHenry, Jefferson, Oldham, Shelby, Trimble27 min
Dec 11, 12:36 AM CSTTornado Warning Tornado observedLMKLogan, Simpson39 min
Dec 11, 12:41 AM CSTSevere Thunderstorm WarningLMKBullitt, Nelson, Spencer34 min
Dec 11, 12:44 AM CSTTornado WarningLMKBullitt, Nelson, Shelby, Spencer46 min
Dec 11, 12:58 AM CSTTornado Warning Tornado observedLMKButler, Edmonson, Logan, Simpson, Warren47 min
Dec 11, 1:27 AM CSTTornado Warning Tornado observedLMKBarren, Butler, Edmonson, Hart, Metcalfe, Warren48 min
Dec 11, 1:28 AM CSTTornado WarningLMKFranklin, Scott20 min
Dec 11, 1:45 AM CSTSpecial Weather StatementLMKBullitt, Hardin, Larue, Nelson, Spencer30 min
Dec 11, 1:55 AM CSTTornado WarningLMKBarren, Green, Hart, Larue, Marion, Metcalfe and 1 more50 min
Dec 11, 2:08 AM CSTAreal Flood AdvisoryLMKBreckinridge, Bullitt, Hardin, Jefferson, Meade115 min
Dec 11, 2:16 AM CSTSevere Thunderstorm WarningLMKAnderson, Franklin, Harrison, Henry, Nelson, Scott and 3 more29 min
Dec 11, 2:16 AM CSTSevere Thunderstorm Warning Considerable damage threatLMKButler, Logan, Simpson, Warren44 min
Dec 11, 2:22 AM CSTTornado Warning Tornado observedLMKBoyle, Casey, Larue, Lincoln, Marion, Mercer and 1 more38 min
Dec 11, 2:59 AM CSTTornado WarningLMKBoyle, Casey, Garrard, Jessamine, Lincoln, Madison and 1 more46 min
Dec 11, 3:00 AM CSTFlash Flood WarningLMKBarren, Butler, Edmonson, Green, Hart, Logan and 3 more6 hr
Dec 11, 3:10 AM CSTAreal Flood AdvisoryLMKAnderson, Bullitt, Franklin, Harrison, Jefferson, Nelson and 3 more4 hr
Dec 11, 3:13 AM CSTSevere Thunderstorm WarningLMKAllen, Barren, Butler, Edmonson, Hart, Logan and 2 more32 min
Dec 11, 3:20 AM CSTSevere Thunderstorm WarningLMKBourbon, Clark, Fayette, Harrison, Jessamine, Nicholas and 2 more25 min
Dec 11, 3:38 AM CSTSevere Thunderstorm WarningLMKClark, Madison37 min
Dec 11, 3:43 AM CSTAreal Flood AdvisoryLMKAdair, Boyle, Casey, Garrard, Green, Lincoln and 3 more4 hr
Dec 11, 3:47 AM CSTSevere Thunderstorm WarningLMKAllen, Barren, Edmonson, Grayson, Green, Hardin and 7 more28 min
Dec 11, 3:56 AM CSTFlash Flood WarningLMKBreckinridge, Bullitt, Franklin, Grayson, Hancock, Hardin and 6 more3 hr
Dec 11, 4:01 AM CSTTornado WarningLMKGarrard, Madison18 min
Dec 11, 4:18 AM CSTSevere Thunderstorm WarningLMKAdair, Allen, Barren, Casey, Cumberland, Green and 5 more42 min
Dec 11, 4:23 AM CSTTornado WarningLMKClark, Garrard, Lincoln, Madison37 min
Dec 11, 4:27 AM CSTTornado WarningLMKCumberland, Monroe33 min
Dec 11, 4:52 AM CSTTornado WarningLMKCasey, Clinton, Cumberland, Russell23 min
Dec 11, 4:58 AM CSTSevere Thunderstorm WarningLMKAdair, Boyle, Casey, Clark, Fayette, Garrard and 6 more32 min
Dec 11, 4:58 AM CSTSevere Thunderstorm WarningLMKAdair, Boyle, Casey, Green, Lincoln, Marion and 2 more32 min
Dec 11, 5:28 AM CSTSevere Thunderstorm WarningLMKClark, Garrard, Lincoln, Madison32 min
Dec 11, 7:42 AM CSTAreal Flood WarningLMKGarrard, Lincoln, Madison3 hr
Dec 11, 9:18 AM CSTSpecial Weather StatementLMKAnderson, Franklin, Henry, Nelson, Shelby, Spencer and 1 more27 min
Dec 11, 10:10 AM CSTSpecial Weather StatementLMKAnderson, Bourbon, Clark, Fayette, Harrison, Jessamine and 6 more65 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2021Every severe thunderstorm warning 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.