Alert archive / Kentucky / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 324, NWS Louisville, KY

December 9, 2023Breckinridge County, Grayson County, Hardin County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Dec 9, 2023, 1:13 PM CST for Breckinridge County, Grayson County, Hardin County, Kentucky. It was in force for 17 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 9, 2023, 1:13 PM CST (19:13 UTC)
Expired
Dec 9, 2023, 1:30 PM CST
In force
17 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Breckinridge County, KY, Grayson County, KY, Hardin County, KY

The radar

The Louisville radar (KLVX), 45 km from the middle of the area, began a volume at 19:12 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 9, 11:35 AM CSTTornado WatchSPC9 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 7.2 hours before the alert went out and 171 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 12:00Z on 2023-12-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2023-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 390 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
571 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
390 m²/s²
0-3 km storm-relative helicity
388 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 9, 12:56 PM CST, 17 minutes earlier.

Area forecast discussion, Dec 9, 12:56 PM CST, 17 minutes before
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Hazardous weather outlook, Dec 9, 11:53 AM CST, 1 hour 20 minutes before
Hazardous Weather Outlook
National Weather Service Louisville KY
1253 PM EST Sat Dec 9 2023

INZ076>079-083-084-089>092-KYZ023>025-029>043-045>049-054>057-
065>067-077-078-081-082-101800-
Orange-Washington IN-Scott IN-Jefferson IN-Dubois-Crawford-Perry-
Harrison IN-Floyd-Clark IN-Hancock-Breckinridge-Meade-Bullitt-
Jefferson-Oldham-Trimble-Henry-Shelby-Franklin-Scott KY-Harrison KY-
Spencer-Anderson-Woodford-Fayette-Bourbon-Nicholas-Nelson-
Washington KY-Mercer-Jessamine-Clark KY-Marion-Boyle-Garrard-Madison-
Taylor-Casey-Lincoln-Adair-Russell-Cumberland-Clinton-
1253 PM EST Sat Dec 9 2023 /1153 AM CST Sat Dec 9 2023/

This Hazardous Weather Outlook is for Indiana, south central
Indiana, east central Kentucky, north central Kentucky, northwest
Kentucky and south central Kentucky.

.DAY ONE...This afternoon and tonight.

A strong weather system will move through the region today.
Widespread rain showers and scattered thunderstorms are expected this
afternoon and evening. Some of the storms could be strong to severe
with damaging winds being the main threat. An isolated tornado can
not be ruled out, especially across southern Kentucky. The highest
risk of severe weather will be across central Kentucky.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

GENERAL STORM MOTION OF THE DAY:

Storms will move from southwest to northeast between 40 and 50 mph.

Any users of this storm motion must be aware that thunderstorm activity
can be erratic and constantly evolving.  Please use this with caution
and be prepared for changing conditions.

&&

More information, along with other weather, hydrological and
climate information can be found, at weather.gov/louisville.

KYZ026>028-053-061>064-070>076-101800-
Ohio-Grayson-Hardin-Larue-Butler-Edmonson-Hart-Green-Logan-Warren-
Simpson-Allen-Barren-Monroe-Metcalfe-
1253 PM EST Sat Dec 9 2023 /1153 AM CST Sat Dec 9 2023/

...TORNADO WATCH 714 IN EFFECT UNTIL 8 PM EST /7 PM CST/ THIS
EVENING...

This Hazardous Weather Outlook is for north central Kentucky,
northwest Kentucky and south central Kentucky.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tornado Watch.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

GENERAL STORM MOTION OF THE DAY:

Storms will move from southwest to northeast between 40 and 50 mph.

Any users of this storm motion must be aware that thunderstorm activity
can be erratic and constantly evolving.  Please use this with caution
and be prepared for changing conditions.

&&

More information, along with other weather, hydrological and
climate information can be found, at weather.gov/louisville.

DM

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 9, 12:53 PM CSTSevere Thunderstorm WarningLMKButler, Grayson, Ohio21 min
Dec 9, 1:35 PM CSTSpecial Weather StatementLMKBullitt25 min
Dec 9, 1:51 PM CSTTornado Warning Tornado observedLMKLogan54 min
Dec 9, 2:17 PM CSTTornado Warning Tornado observedLMKLogan, Simpson, Warren58 min
Dec 9, 2:27 PM CSTSpecial Weather StatementLMKBullitt33 min
Dec 9, 2:49 PM CSTSpecial Weather StatementLMKOwen26 min
Dec 9, 2:55 PM CSTTornado WarningLMKBarren, Edmonson, Warren65 min
Dec 9, 3:38 PM CSTSpecial Weather StatementLMKBullitt, Spencer37 min
Dec 9, 3:48 PM CSTSevere Thunderstorm WarningLMKBarren, Hart, Metcalfe24 min
Dec 9, 3:59 PM CSTSpecial Weather StatementLMKMeade31 min
Dec 9, 4:23 PM CSTSpecial Weather StatementLMKFranklin, Scott37 min
Dec 9, 4:25 PM CSTTornado WarningLMKAnderson, Franklin, Shelby35 min
Dec 9, 4:35 PM CSTSpecial Weather StatementLMKGrayson25 min
Dec 9, 4:42 PM CSTSpecial Weather StatementLMKBullitt33 min
Dec 9, 4:48 PM CSTTornado WarningLMKAllen, Simpson27 min
Dec 9, 5:12 PM CSTTornado WarningLMKAllen17 min
Dec 9, 5:33 PM CSTSpecial Weather StatementLMKNelson27 min
Dec 9, 5:41 PM CSTSevere Thunderstorm WarningLMKGreen, Hart34 min
Dec 9, 5:57 PM CSTSevere Thunderstorm Warning Considerable damage threatLMKCumberland, Monroe33 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2023Every severe thunderstorm warning in 2023

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.