Alert archive / Kentucky / Wind Chill Warnings in 2022

Wind Chill Warning 1, NWS Louisville, KY

December 22, 202249 counties in Kentucky; 10 counties in Indiana

NWS Louisville, KY issued this wind chill warning at Dec 22, 2022, 2:25 AM CST for 49 counties in Kentucky; 10 counties in Indiana. It took effect at Dec 22, 2022, 9:00 PM CST. It was in force for 15 hr. 31 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 22, 2022, 2:25 AM CST (08:25 UTC)
In effect from
Dec 22, 2022, 9:00 PM CST
Expired
Dec 23, 2022, 12:00 PM CST
In force
15 hr
Issued by
NWS Louisville, KY
All 59 counties

Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Perry County, IN, Scott County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 43 km from the middle of the area, began a volume at 08:24 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.

What was reported inside it

TimeReportWhereRemark
Dec 22, 9:00 PM CSTSNOW 2Goshen, KYPUBLIC SOCIAL MEDIA REPORT RELAYED BY BROADCAST MEDIA OF AN ESTIMATED 2 INCHES OF SNOW. PICTURE INCLUDED.
Dec 22, 9:19 PM CSTSNOW 12 W Bowling Green, KYMEASURED AT WBKO IN BOWLING GREEN. STILL SNOWING.
Dec 22, 9:35 PM CSTSNOW 1.12 Ssw Highview, KYSTILL SNOWING.
Dec 22, 9:40 PM CSTSNOW 22 Ene Pleasure Ridge Pa, KYPUBLIC REPORT ON SOCIAL MEDIA WITH INCONCLUSIVE PICTURE. STILL LIGHT SNOW FALLING.
Dec 22, 9:45 PM CSTSNOW 2Bardstown, KYPUBLIC REPORT ON SOCIAL MEDIA. STILL LIGHT SNOW FALLING.
Dec 22, 10:00 PM CSTSNOW 2.43 Ese Louisville, KYPUBLIC REPORT OVER SOCIAL MEDIA. STILL LIGHT SNOW FALLING.
Dec 22, 10:20 PM CSTSNOW 24 Nnw Forks Of Elkhorn, KY
Dec 22, 10:24 PM CSTSNOW 22 Ene Middletown, KYMEASURED BY BROADCAST MEDIA. STILL LIGHT SNOW FALLING.
Dec 22, 11:00 PM CSTSNOW 2.84 Nw Okolona, KYSDF SNOW OBSERVER.
Dec 22, 11:00 PM CSTSNOW 3Henryville, INPUBLIC REPORT ON SOCIAL MEDIA. STILL LIGHT SNOW FALLING.
Dec 22, 11:30 PM CSTSNOW 22 W Bowling Green, KYAN AVERAGE OF 2 INCHES OF SNOW AT WBKO.
Dec 22, 11:35 PM CSTSNOW 2Marysville, INPUBLIC REPORT VIA SOCIAL MEDIA. LIGHT SNOW STILL FALLING.
Dec 22, 11:42 PM CSTSNOW 2.3Paoli, INSOCIAL MEDIA PICTURE OF MEASURED SNOW. SNOW ENDING.
Dec 23, 12:00 AM CSTSNOW 1.42 N Georgetown, KYSTILL SNOWING.
Dec 23, 12:00 AM CSTSNOW 1.91 Ese Bowling Green, KYASOS STATION KBWG BOWLING GREEN.
Dec 23, 12:00 AM CSTSNOW 2.52 Ssw Highview, KY
Dec 23, 12:20 AM CSTSNOW 35 Nw Forks Of Elkhorn, KYMEASURED ON A SNOW BOARD. LIGHT SNOW STILL FALLING.
Dec 23, 2:02 AM CSTSNOW 2.41 Ene Mckinley, IN
Dec 23, 6:00 AM CSTSNOW 13 W Big Spring, KYCO-OP OBSERVER STATION CNRK2 CORNERS.
Dec 23, 6:00 AM CSTSNOW 21 W Tell City, INTELL CITY CO-OP OBSERVER REPORTED 2 INCHES OF SNOW AT 700 AM OBSERVATION.
Dec 23, 6:00 AM CSTSNOW 22 Sw Scottsville, KYCO-OP OBSERVER STATION SCTK2 SCOTTSVILLE 3 SSW.
Dec 23, 6:00 AM CSTSNOW 25 Se Gravel Switch, KYCOCORAHS STATION KY-CS-1 BRADFORDSVILLE 8.5 ENE.
Dec 23, 6:00 AM CSTSNOW 2.51 N Shelbyville, KYCOCORAHS STATION KY-SH-15 SHELBYVILLE 1.3 N.
Dec 23, 6:00 AM CSTSNOW 2.51 Nw Saint Matthews, KYCOCORAHS STATION KY-JF-82 ST. MATTHEWS 1.3 NW.
Dec 23, 6:00 AM CSTSNOW 32 E Epleys Station, KYCOCORAHS STATION KY-LG-10 RUSSELLVILLE 6.6 N.
Dec 23, 6:00 AM CSTSNOW 4.22 W Forks Of Elkhorn, KYCO-OP OBSERVER STATION RVEK2 RIDGEVIEW ESTATES 3 NE.
Dec 23, 6:20 AM CSTSNOW 13 Nnw Flippin, KYCOCORAHS STATION KY-MO-1 TOMPKINSVILLE 12.1 WNW.
Dec 23, 8:30 AM CSTHEAVY SNOW 4.72 Sse Buckner, KY
Dec 23, 10:11 AM CSTSNOW 1.5Russell Springs, KYREPORT VIA SOCIAL MEDIA.
Dec 23, 10:11 AM CSTSNOW 2Campbellsville, KY
Dec 23, 10:18 AM CSTHEAVY SNOW 4Bardstown, KYREPORT VIA SOCIAL MEDIA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 8.4 hours before the alert went out and 205 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 2022-12-22Temperature 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 00:00Z on 2022-12-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1970 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

921 
WWUS43 KLMK 220825
WSWLMK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Louisville KY
325 AM EST Thu Dec 22 2022

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-222130-
/O.UPG.KLMK.WC.A.0001.221223T0300Z-221223T1800Z/
/O.NEW.KLMK.WC.W.0001.221223T0300Z-221223T1800Z/
/O.CON.KLMK.WW.Y.0010.221222T2300Z-221223T1800Z/
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
325 AM EST Thu Dec 22 2022 /225 AM CST Thu Dec 22 2022/

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM EST /5 PM
CST/ THIS EVENING TO 1 PM EST /NOON CST/ FRIDAY...
...WIND CHILL WARNING IN EFFECT FROM 10 PM EST /9 PM CST/ THIS
EVENING TO 1 PM EST /NOON CST/ FRIDAY...

* WHAT...Wind Chill Warning for dangerously cold wind chills
  expected. Wind chills of -25 to -30 below zero. Winter Weather
  Advisory for snow. Total snow accumulations of 1-3 inches with
  locally higher amounts possible. Wind gusts of 40 to 45 mph
  expected.

* WHERE...All of southern Indiana and central Kentucky.

* WHEN...Wind Chill Warning is in effect from 10 PM EST tonight
  through 1 PM EST Friday. The Winter Weather Advisory is in
  effect from 6 PM EST tonight through 1 PM EST Friday.

* IMPACTS...Slick roads are expected this evening and through the
  day on Friday. Patchy blowing snow could significantly reduce
  visibility in some areas. The cold wind chills can cause
  frostbite on exposed skin in less than 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

Slow down and use caution while traveling. 

In Indiana, for Indiana Road Conditions please visit
http://pws.trafficwise.org. 

In Kentucky, for Kentucky Road Conditions please visit 
http://goky.ky.gov

&&

$$

EBW/MJ
4 follow-up statements
245 
WWUS43 KLMK 222006
WSWLMK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Louisville KY
306 PM EST Thu Dec 22 2022

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-230900-
/O.UPG.KLMK.WW.Y.0010.221222T2300Z-221223T1800Z/
/O.NEW.KLMK.WS.W.0004.221222T2300Z-221223T1800Z/
/O.CON.KLMK.WC.W.0001.221223T0300Z-221223T1800Z/
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
306 PM EST Thu Dec 22 2022 /206 PM CST Thu Dec 22 2022/

...WINTER STORM WARNING IN EFFECT FROM 6 PM EST /5 PM CST/ THIS
EVENING TO 1 PM EST /NOON CST/ FRIDAY...
...WIND CHILL WARNING REMAINS IN EFFECT FROM 10 PM EST /9 PM CST/
THIS EVENING TO 1 PM EST /NOON CST/ FRIDAY...

* WHAT...Total snow accumulation 2 to 3 inches, locally up to 4
  inches. Winds gusting as high as 45 mph, resulting in near
  blizzard conditions at times, and dangerously cold wind chills 
  as low as 30 below zero.

* WHERE...Southern Indiana and central Kentucky. 

* WHEN...This evening through Friday afternoon.

* IMPACTS...Hazardous travel conditions could impact the Friday
  morning The cold wind chills could cause frostbite on exposed
  skin in less than 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

In Indiana, for Indiana Road Conditions please visit
http://pws.trafficwise.org In Kentucky, for Kentucky Road
Conditions please visit http://goky.ky.gov

&&

$$

RAS
982 
WWUS43 KLMK 230827
WSWLMK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Louisville KY
327 AM EST Fri Dec 23 2022

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-231800-
/O.NEW.KLMK.WC.Y.0001.221223T1800Z-221224T1800Z/
/O.CON.KLMK.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLMK.WS.W.0004.000000T0000Z-221223T1800Z/
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
327 AM EST Fri Dec 23 2022 /227 AM CST Fri Dec 23 2022/

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 1 PM EST /NOON CST/
THIS AFTERNOON...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST /NOON
CST/ THIS AFTERNOON...
...WIND CHILL ADVISORY IN EFFECT FROM 1 PM EST /NOON CST/ THIS
AFTERNOON TO 1 PM EST /NOON CST/ SATURDAY...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills.
  Wind chills as low as 30 below zero. For the Winter Storm
  Warning, lingering light snow and reduced visibility in blowing
  snow. Very little, if any, additional snow accumulation. Winds
  gusting as high as 45 mph. For the Wind Chill Advisory, very 
  cold wind chills expected. Wind chills as low as 25 below zero.

* WHERE...Portions of and south central Indiana and east 
  central, north central, northwest and south central Kentucky. 

* WHEN...For the Wind Chill Warning, until 1 PM EST /noon CST/ 
  this afternoon. For the Wind Chill Advisory, from 1 PM EST 
  /noon CST/ this afternoon to 1 PM EST /noon CST/ Saturday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing snow
  could significantly reduce visibility. The hazardous conditions
  could impact the morning or evening commute. The cold wind
  chills could cause frostbite on exposed skin in as little as 30
  minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

In Indiana, for Indiana Road Conditions please visit
http://pws.trafficwise.org In Kentucky, for Kentucky Road
Conditions please visit http://goky.ky.gov

&&

$$

EBW
989 
WWUS43 KLMK 231135
WSWLMK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Louisville KY
635 AM EST Fri Dec 23 2022

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-232100-
/O.CAN.KLMK.WS.W.0004.000000T0000Z-221223T1800Z/
/O.CON.KLMK.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLMK.WC.Y.0001.221223T1800Z-221224T1800Z/
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
635 AM EST Fri Dec 23 2022 /535 AM CST Fri Dec 23 2022/

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 1 PM EST /NOON CST/
THIS AFTERNOON...
...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 1 PM EST /NOON CST/
THIS AFTERNOON TO 1 PM EST /NOON CST/ SATURDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Wind Chill Warning, dangerously cold wind chills.
  Wind chills as low as 30 below zero. For the Wind Chill
  Advisory, very cold wind chills expected. Wind chills of -10 to
  -24. 

* WHERE...Portions of and south central Indiana and east 
  central, north central, northwest and south central Kentucky. 

* WHEN...For the Wind Chill Warning, until 1 PM EST /noon CST/ 
  this afternoon. For the Wind Chill Advisory, from 1 PM EST 
  /noon CST/ this afternoon to 1 PM EST /noon CST/ Saturday.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outside activities if possible. When outside, make sure you
wear appropriate clothing, a hat, and gloves. 

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

EBW
256 
WWUS43 KLMK 231750
WSWLMK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Louisville KY
1250 PM EST Fri Dec 23 2022

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-240400-
/O.EXP.KLMK.WC.W.0001.000000T0000Z-221223T1800Z/
/O.CON.KLMK.WC.Y.0001.221223T1800Z-221224T1800Z/
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
1250 PM EST Fri Dec 23 2022 /1150 AM CST Fri Dec 23 2022/

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST /NOON
CST/ SATURDAY...
...WIND CHILL WARNING WILL EXPIRE AT 1 PM EST /NOON CST/ THIS
AFTERNOON...

* WHAT...Very cold wind chills, generally 15 to 25 below zero this
  afternoon, recovering to 10 to 20 below zero tonight.

* WHERE...Southern Indiana and central Kentucky.

* WHEN...through early Saturday afternoon.

* IMPACTS...The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves. 

&&

$$

RAS

What forecasters said that day

The local office's own words before this wind chill 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 wind chill warning went out at Dec 21, 11:52 PM CST, 2 hours 33 minutes earlier.

Area forecast discussion, Dec 21, 11:52 PM CST, 2 hours 33 minutes before
Area Forecast Discussion
National Weather Service Louisville KY
1252 AM EST Thu Dec 22 2022

...Updated Aviation Discussion...

.Forecast Update...
Issued at 925 PM EST Wed Dec 21 2022

The forecast looks on track this evening, and mainly wanted to
discuss a couple of issues related to the upcoming winter storm. The
main focus overnight will be to certainly upgrade the ongoing Wind
Chill Watch to either a Wind Chill Advisory or Warning. Will also
have to focus on timing of cold onset as a notable trend of faster
has been evident over the past 24 hours. Have seen several past
instances where cold air outbreaks were in a hurry. Something to
watch.

There is pretty strong support in the data to up some of our snow
totals across our eastern CWA (along the I-75 corridor) to an amount
more firmly in the 1 to 2" range. Given the signal of a secondary
surface low to our SE, think that added moisture being pulled into
the system could enhance things a bit.

Finally, wanted to discuss any lingering snow chances past Friday
morning. Don't want to completely rule out some scattered, but
potentially impactful, gusty snow showers deeper into Friday. If you
take a look at a forecast sounding from the deterministic GFS, there
is a saturated layer up through 850mb, with convective instability
in that layer due to the very steep low level lapse rates. Oddly
enough, the thermal column in that saturated layer is actually
colder (-20 to -25C) than the preferred DGZ range (-10 to -20C). So,
it is possible you could lose some efficiency with any lingering
snow shower, but would likely still be heavy enough to cause some
brief accums and reduced visibility. In addition, the steep low
level lapse rates will allow for mixing up into a 40 knot layer, so
the snow showers would be particularly gusty outside of the already
gusty winds advertised. A few snow bursts or even squalls couldn't
be ruled out in that scenario.

In contrast, the deterministic NAM completely dries us out by around
sunrise, with only the gusty winds and cold to contend with from
there. So, will have to see which solution verifies and have gone
middle ground with lingering flurries into Friday for now. May have
to ramp messaging up a bit more for additional light accums and
potential impactful snow showers if the more moist solution trends.

&&

.Short Term (Now through Thursday)...
Issued at 300 PM EST Wed Dec 21 2022

Clouds will continue to increase tonight as mid and high level
moisture layer streams in ahead of the potent shortwave to our west.
Isentropic lifting ahead of this system will support isolated to
scattered rain showers beginning late tonight, and continuing into
tomorrow. Model soundings continue to suggest rather shallow
saturation, so only a few hundredths of rain remain expected in the
QPF. Temps will bottom out in the mid to upper 30s.

For tomorrow, higher moisture content will begin to filter into the
region by the late morning and early afternoon hours. Increasing
coverage of WAA light rain showers are expected, resulting in a bit
more QPF for the 18z-00z time frame. Mainly looking at rainfall
amount under 0.25 inches during the afternoon hours and ahead of
FROPA. Temps should reach the mid to upper 40s during the afternoon
hours, but then a significant change will be coming for the
beginning of the long term period. It's possible that our very far
NW CWA (Dubois County) could be seeing the rapid temperature drop by
22-23z tomorrow, which will also bring a rapid change from rain to
snow during that time as well. Long Term Discussion below covers the
entire winter weather event.

.Long Term (Thursday night through Tuesday)...
Issued at 310 PM EST Wed Dec 21 2022

...Harsh Winter Weather Thursday Night Through the Weekend...

Key Messages:

- Minor snow accumulations Thursday night, could have greater
impact due to flash freeze as temperatures drop rapidly.

- Very windy Friday with gusts over 40 mph, dangerously cold wind
chills, and possibly blowing snow.

What Has Changed:

- Timing of rain/snow change and cold air adjusted slightly earlier.

- Temperatures and resulting wind chills adjusted slightly colder.

Synopsis...Sharp Arctic front will push quickly east across the Ohio
Valley Thursday night, with minor snow accumulations and rapidly
falling temperatures. Impacts of these snow amounts will be
aggravated by the rapidly falling temperatures, which could also
result in a flash freeze if the roads remain wet. Expect very windy
conditions on Friday, with gusts in excess of 40 mph and dangerous
wind chills near 25 below zero. Very cold temperatures will continue
through the holiday weekend, keeping wind chills below zero at times
into Sunday.

Frontal passage is trending just a couple hours earlier than
previous runs, and hi-res models are showing a quicker drop in
temperatures behind the front. Confidence in snow amounts is a bit
limited as temps favorable for dendritic growth will be partially
offset by strong winds. Overall looking for 1-2 inches of
accumulation, and we'll run a Winter Weather Advisory for snow. Snow
should taper off to flurries in the pre-dawn hours Friday, but will
make the Advisory valid until 18Z to account for lingering road
impacts and to leave the door open in case of blowing snow.

Continued strong cold advection on Friday will keep temps in the
single digits all day, and wind chill values have been adjusted down
to -20 to -25, very close to warning criteria. Have issued a Wind
Chill Watch for the entire area, keying on the coldest readings from
late Thursday evening until early afternoon on Friday, but will also
mention that subzero wind chills will continue well into the
weekend.

Wind gusts Thursday night and Friday will be between 40-50 mph at
times. The real complicating factor here will be how much snow
falls, as blowing snow could become an issue where the heaviest snow
occurs. Not jumping on this hazard too heavily yet as it remains in
question whether we will have sufficient accumulation for a
"blowable" snow. If we do see a 2-3 inch snowfall in parts of the
area, we could hit those locations harder.

For the rest of the weekend, expect bitterly cold temperatures for
Christmas Eve and Christmas Day.  Dangerously cold wind chills in
the -10 to -20 degree range will continue into Saturday morning.
Winds will begin to subside Sat afternoon but highs will be limited
to the teens. Temperatures will improve slightly for Sun. Sub-zero
wind chills are still expected Sun morning.  High temps Sun
afternoon should reach the upper teens to low 20s.  A few flurries
may be possible in strong CAA throughout the weekend.

Monday through Wednesday will feature a warm up with a few locations
over southern KY reaching the freezing mark by Monday and almost all
of the area going above freezing by Tuesday afternoon.  A subtle
shortwave may cause some light snow showers over southern Indiana
and portions of north central Kentucky on Monday.

&&

.Aviation...(06Z TAF Issuance)
Issued at 1250 AM EST Thu Dec 22 2022

A powerful storm system will affect all terminals during this TAF
period. Low pressure continues to deepen off to the west, and
increasing southerly flow will advect low-level moisture into the
area. Though VFR for the moment, expect ceilings to deteriorate to
MVFR in the first six hours of the TAF period. SCT light warm
advection showers are expected this morning, with coverage gradually
increasing after 06-07z.

Sfc low pressure will continue to deepen rapidly over the Great
Lakes and Ohio Valley through the end of the period, with an arctic
front forecast to push west to east across southern IN and central
KY between roughly 22-05z this evening. A burst of light to moderate
snow and limited visibility is likely immediately following fropa.
Temperatures crash this evening and overnight behind the arctic
front, with frigid temperatures and strong westerly winds. Frequent
gusts to 30-35 kts look likely after 00z Friday. Forecast confidence
is high on all elements.

&&

.LMK WATCHES/WARNINGS/ADVISORIES...
KY...Winter Weather Advisory from 6 PM EST /5 PM CST/ Thursday to 1
     PM EST /noon CST/ Friday for KYZ023>043-045>049-053>057-
     061>067-070>078-081-082.

     Wind Chill Watch from Thursday evening through Friday afternoon
     for KYZ023>043-045>049-053>057-061>067-070>078-081-082.

IN...Winter Weather Advisory from 6 PM EST /5 PM CST/ Thursday to 1
     PM EST /noon CST/ Friday for INZ076>079-083-084-089>092.

     Wind Chill Watch from Thursday evening through Friday afternoon
     for INZ076>079-083-084-089>092.

&&

Update...BJS
Short Term.....CJP
Long Term......RAS
Aviation...EBW
Hazardous weather outlook, Dec 21, 2:44 PM CST, 11 hours 41 minutes before
Hazardous Weather Outlook
National Weather Service Louisville KY
344 PM EST Wed Dec 21 2022

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-222045-
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
344 PM EST Wed Dec 21 2022 /244 PM CST Wed Dec 21 2022/

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THURSDAY TO 1 PM EST
FRIDAY...
...WIND CHILL WATCH IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
AFTERNOON...

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

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Dangerously cold conditions are expected Thursday night into Friday,
with wind chills reaching 15 to 25 below zero. The sub-zero wind
chills will continue for much of the weekend.

Winds gusting over 40 mph Thursday night and Friday will make
driving difficult and blow around loose objects and Christmas
decorations.

Accumulating snow is expected Thursday night into Friday morning.
Minor accumulations are possible, and a rapid drop in temperatures
and resultant icy roads will aggravate any negative travel impacts.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report snowfall totals and any significant
impacts Thursday night and Friday.

&&

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

CJP/RAS

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 22, 2:06 PM CSTWinter Storm WarningLMKAdair, Allen, Anderson, Barren, Bourbon, Boyle and 43 more15 hr

Nearby

Wind Chill Warnings in Kentucky, 2022Wind Chill Warnings in Indiana, 2022Every wind chill warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.