Winter Storm Warning 3, NWS Indianapolis, IN

Bartholomew County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Fountain County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN

842 
WWUS43 KIND 220251
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
951 PM EST Wed Dec 21 2022

INZ021-028>031-035>049-051>057-221100-
/O.CON.KIND.WS.W.0003.221222T2000Z-221224T0000Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
951 PM EST Wed Dec 21 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THURSDAY TO
7 PM EST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 4 
  inches. Winds gusting as high as 50 mph.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...From 3 PM Thursday to 7 PM EST Friday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Gusty 
  winds could bring down tree branches. The cold wind chills as 
  low as 35 below zero could cause frostbite on exposed skin in 
  as little as 30 minutes.

* ADDITIONAL DETAILS...A flash freeze is likely Thursday night
  with temperatures dropping more than 30 degrees in a matter of
  hours during the transition from rain to snow. Heaviest snow is
  expected shortly after frontal passage Thursday evening into
  Thursday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-221100-
/O.CON.KIND.WS.W.0003.221222T2100Z-221223T1800Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
951 PM EST Wed Dec 21 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THURSDAY TO
1 PM EST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3 
  inches. Winds gusting as high as 50 mph.

* WHERE...Portions of central, south central, southeast and 
  southwest Indiana.

* WHEN...From 4 PM Thursday to 1 PM EST Friday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Gusty 
  winds could bring down tree branches. The cold wind chills as 
  low as 30 below zero could cause frostbite on exposed skin in 
  as little as 30 minutes.

* ADDITIONAL DETAILS...A flash freeze is likely Thursday night
  with temperatures dropping more than 30 degrees in a matter of
  hours during the transition from rain to snow. Heaviest snow is
  expected shortly after frontal passage Thursday evening into
  Thursday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

613 
WWUS43 KIND 220844
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
344 AM EST Thu Dec 22 2022

INZ021-028>031-035>049-051>057-222100-
/O.CON.KIND.WS.W.0003.221222T2000Z-221224T0000Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
344 AM EST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 7 PM EST FRIDAY...

* WHAT...Heavy snow and dangerous cold. Total snow accumulations 
  of 2 to 4 inches. Winds gusting as high as 50 mph.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...From 3 PM this afternoon to 7 PM EST Friday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The hazardous
  conditions could impact the morning or evening commute. Gusty
  winds could bring down tree branches. Wind chills as low as 35 
  below zero will cause frostbite and hypothermia even if outside 
  for only a short time.

* ADDITIONAL DETAILS...A flash freeze is likely this evening as
  temperatures drop very rapidly while precipitation is ongoing
  and roads are wet. This will cause significant travel
  difficulty. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-222100-
/O.CON.KIND.WS.W.0003.221222T2100Z-221223T1800Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
344 AM EST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 1 PM EST FRIDAY...

* WHAT...Heavy snow and dangerous cold. Total snow accumulations 
  of 2 to 4 inches. Winds gusting as high as 45 mph.

* WHERE...Portions of central, south central, southeast and 
  southwest Indiana.

* WHEN...From 4 PM this afternoon to 1 PM EST Friday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The hazardous
  conditions could impact the morning or evening commute. Gusty
  winds could bring down tree branches. Wind chills as low as 30 
  below zero will cause frostbite and hypothermia even if outside 
  for only a short time.

* ADDITIONAL DETAILS...A flash freeze is likely this evening as
  temperatures drop very rapidly while precipitation is ongoing
  and roads are wet. This will cause significant travel
  difficulty. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

840 
WWUS43 KIND 221842
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
142 PM EST Thu Dec 22 2022

INZ021-028>031-035>049-051>057-230700-
/O.CON.KIND.WS.W.0003.221222T2000Z-221224T0000Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
142 PM EST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

* WHAT...Near blizzard-like conditions at times from heavy snow
  and winds gusting as high as 60 mph. Dangerous cold. Total snow
  accumulations of 2 to 5 inches.
 

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...From 3 PM this afternoon to 7 PM EST Friday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The hazardous
  conditions will impact the morning and evening commute. Gusty
  winds could bring down tree branches and cause power outages. 
  Wind chills as low as 35 below zero will cause frostbite and 
  hypothermia even if outside for only a short time.

* ADDITIONAL DETAILS...A flash freeze is likely this evening as 
  temperatures drop very rapidly while precipitation is ongoing 
  and roads are wet. This will cause significant travel 
  difficulty.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by calling
1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-230700-
/O.CON.KIND.WS.W.0003.221222T2100Z-221223T1800Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
142 PM EST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST FRIDAY...

* WHAT...Heavy snow and dangerous cold. Total snow accumulations
  of 2 to 4 inches. Winds gusting as high as 50 mph. Near blizzard-
  like conditions possible at times.

* WHERE...Portions of central, south central, southeast and 
  southwest Indiana.

* WHEN...From 4 PM this afternoon to 1 PM EST Friday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The hazardous
  conditions could impact the morning or evening commute. Gusty
  winds could bring down tree branches and cause power outages. 
  Wind chills as low as 30 below zero will cause frostbite and 
  hypothermia even if outside for only a short time.

* ADDITIONAL DETAILS...A flash freeze is likely this evening as 
  temperatures drop very rapidly while precipitation is ongoing 
  and roads are wet. This will cause significant travel 
  difficulty.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by calling
1 800 2 6 1 7 6 2 3

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

900 
WWUS43 KIND 230247
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
947 PM EST Thu Dec 22 2022

INZ021-028>031-035>049-051>057-231100-
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T0000Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
947 PM EST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 3 
  inches. Winds gusting as high as 50 mph.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...Until 7 PM EST Friday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. Gusty 
  winds could bring down tree branches. The dangerously cold 
  wind chills as low as 35 below zero could cause frostbite on 
  exposed skin in as little as 10 minutes.

* ADDITIONAL DETAILS...A flash freeze occurred earlier this
  evening as temperatures fell quickly into the single digits and
  teens while precipitation was ongoing and roads are wet.
  Significant travel difficulty continues as a result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-231100-
/O.CON.KIND.WS.W.0003.000000T0000Z-221223T1800Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
947 PM EST Thu Dec 22 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM EST FRIDAY...

* WHAT...Heavy snow. Additional snow accumulations of up to two 
  inches. Winds gusting as high as 45 mph.

* WHERE...Portions of central, south central, southeast and 
  southwest Indiana.

* WHEN...Until 1 PM EST Friday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning commute. Gusty winds could 
  bring down tree branches. The cold wind chills as low as 35 
  below zero could cause frostbite on exposed skin in as little 
  as 30 minutes.

* ADDITIONAL DETAILS...A flash freeze occurred earlier this
  evening as temperatures fell quickly into the single digits and
  teens while precipitation was ongoing and roads are wet.
  Significant travel difficulty continues as a result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

244 
WWUS43 KIND 230824
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
324 AM EST Fri Dec 23 2022

INZ060>065-067>072-231630-
/O.EXT.KIND.WS.W.0003.000000T0000Z-221224T0000Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
324 AM EST Fri Dec 23 2022

...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Dangerous Cold. Gusty winds resulting in blowing and
  drifting snow.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The hazardous
  conditions could impact the morning or evening commute. The
  dangerously cold wind chills can cause frostbite on exposed 
  skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35 
  will be common today. Wind chills as low as -40 will be 
  possible.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

INZ021-028>031-035>049-051>057-231630-
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T0000Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
324 AM EST Fri Dec 23 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Dangerous Cold. Gusty winds resulting in blowing and
  drifting snow.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The hazardous
  conditions could impact the morning or evening commute. The
  dangerously cold wind chills can cause frostbite on exposed 
  skin in as little as 10 minutes.

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35 
  will be common today. Wind chills as low as -40 will be 
  possible.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

791 
WWUS43 KIND 231507
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
1007 AM EST Fri Dec 23 2022

INZ021-028>031-035>049-051>057-232315-
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T0000Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
1007 AM EST Fri Dec 23 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Dangerous Cold. Gusty winds resulting in blowing and 
  drifting snow. 

* WHERE...Portions of central, east central, north central and 
  west central Indiana. 

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. The 
  dangerously cold wind chills can cause frostbite on exposed 
  skin in as little as 10 minutes. 

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35 
  will be common today. Wind chills as low as -40 will be 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by calling
1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-232315-
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T0000Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
1007 AM EST Fri Dec 23 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Dangerous Cold. Gusty winds resulting in blowing and 
  drifting snow. 

* WHERE...Portions of central, east central, north central and 
  west central Indiana. 

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the morning or evening commute. The 
  dangerously cold wind chills can cause frostbite on exposed 
  skin in as little as 10 minutes. 

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35 
  will be common today. Wind chills as low as -40 will be 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by calling
1 800 2 6 1 7 6 2 3

&&

$$

023 
WWUS43 KIND 231947
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
247 PM EST Fri Dec 23 2022

INZ021-028>031-035>049-051>057-240000-
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T0000Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
247 PM EST Fri Dec 23 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Dangerous Cold. Gusty winds resulting in blowing and 
  drifting snow. 

* WHERE...Portions of central, east central, north central and 
  west central Indiana. 

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The hazardous
  conditions could impact the evening commute. The dangerously 
  cold wind chills can cause frostbite on exposed skin in as 
  little as 10 minutes. 

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35
  will be common through early evening. Wind chills as low as -40
  will be possible.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by calling
1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-240000-
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T0000Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
247 PM EST Fri Dec 23 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* WHAT...Dangerous Cold. Gusty winds resulting in blowing and 
  drifting snow. 

* WHERE...Portions of central, east central, north central and 
  west central Indiana. 

* WHEN...Until 7 PM EST this evening.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The hazardous
  conditions could impact the evening commute. The dangerously 
  cold wind chills can cause frostbite on exposed skin in as 
  little as 10 minutes. 

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35
  will be common through early evening. Wind chills as low as -40
  will be possible.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by calling
1 800 2 6 1 7 6 2 3

&&

$$

709 
WWUS43 KIND 232138
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
438 PM EST Fri Dec 23 2022

INZ021-028>031-035>049-051>057-240545-
/O.EXT.KIND.WS.W.0003.000000T0000Z-221224T1200Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
438 PM EST Fri Dec 23 2022

...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 AM EST SATURDAY...

* WHAT...Dangerous Cold. Strong and gusty winds resulting in 
  blowing and drifting snow. Light snow at times.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...Until 7 AM EST Saturday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The hazardous 
  conditions could impact the evening commute. Gusty winds could 
  bring down tree branches. The cold wind chills as low as 30 
  below zero could cause frostbite on exposed skin in as little 
  as 30 minutes.

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35
  will be common tonight. Wind gusts will peak up to 45 mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-240545-
/O.EXT.KIND.WS.W.0003.000000T0000Z-221224T1200Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
438 PM EST Fri Dec 23 2022

...WINTER STORM WARNING NOW IN EFFECT UNTIL 7 AM EST SATURDAY...

* WHAT...Dangerous Cold. Strong and gusty winds resulting in 
  blowing and drifting snow. Light snow at times.

* WHERE...Portions of central, south central, southeast and 
  southwest Indiana.

* WHEN...Until 7 AM EST Saturday.

* IMPACTS...Areas of blowing snow could significantly reduce 
  visibility. The hazardous conditions could impact the evening 
  commute. Gusty winds could bring down tree branches. The cold 
  wind chills as low as 30 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35
  will be common tonight. Wind gusts will peak up to 45 mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

192 
WWUS43 KIND 240215
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
915 PM EST Fri Dec 23 2022

INZ021-028>031-035>049-051>057-241015-
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T1200Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
915 PM EST Fri Dec 23 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST
SATURDAY...

* WHAT...Dangerous Cold. Strong and gusty winds resulting in 
  blowing and drifting snow. Light snow at times.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...Until 7 AM EST Saturday.

* IMPACTS...Plan on slippery road conditions. Widespread blowing 
  snow could significantly reduce visibility. The cold wind 
  chills as low as 35 below zero could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35
  will be common tonight. Wind gusts will peak up to 45 mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-241015-
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T1200Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
915 PM EST Fri Dec 23 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST
SATURDAY...

* WHAT...Dangerous Cold. Strong and gusty winds resulting in 
  blowing and drifting snow. Light snow at times.

* WHERE...Portions of central, south central, southeast and 
  southwest Indiana.

* WHEN...Until 7 AM EST Saturday.

* IMPACTS...Widespread blowing snow could significantly reduce
  visibility. The cold wind chills as low as 35 below zero could 
  cause frostbite on exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Dangerously cold wind chill of -25 to -35
  will be common tonight. Wind gusts will peak up to 45 mph.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

583 
WWUS43 KIND 240807
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
307 AM EST Sat Dec 24 2022

INZ021-028>031-035>049-051>057-241615-
/O.NEW.KIND.WC.Y.0002.221224T1200Z-221224T1800Z/
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T1200Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
307 AM EST Sat Dec 24 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 1 PM
EST THIS AFTERNOON...

* WHAT...For the Winter Storm Warning, blowing snow. Winds 
  gusting as high as 40 mph. For the Wind Chill Advisory, very 
  cold wind chills expected. Wind chills as low as 25 below zero.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...For the Winter Storm Warning, until 7 AM EST this 
  morning. For the Wind Chill Advisory, from 7 AM this morning 
  to 1 PM EST this afternoon.

* IMPACTS...Plan on slippery road conditions. Widespread blowing
  snow could significantly reduce visibility. The cold wind chills
  could cause frostbite on exposed skin in as little as 20 
  minutes.

* ADDITIONAL DETAILS...Sub-zero wind chills will remain this
  afternoon through early Christmas Day.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. 

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

INZ060>065-067>072-241615-
/O.NEW.KIND.WC.Y.0002.221224T1200Z-221224T1800Z/
/O.CON.KIND.WS.W.0003.000000T0000Z-221224T1200Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
307 AM EST Sat Dec 24 2022

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
...WIND CHILL ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 1 PM
EST THIS AFTERNOON...

* WHAT...For the Winter Storm Warning, blowing snow. Winds gusting
  as high as 35 mph. For the Wind Chill Advisory, very cold wind
  chills expected. Wind chills as low as 20 below zero.

* WHERE...Portions of central, south central, southeast and 
  southwest Indiana.

* WHEN...For the Winter Storm Warning, until 7 AM EST this 
  morning. For the Wind Chill Advisory, from 7 AM this morning 
  to 1 PM EST this afternoon.

* IMPACTS...Widespread blowing snow could significantly reduce 
  visibility. The cold wind chills could cause frostbite on 
  exposed skin in as little as 30 minutes.

* ADDITIONAL DETAILS...Sub-zero wind chills will remain this
  afternoon through early Christmas Day.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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. 

The latest road conditions for Indiana can be obtained by
calling 1 800 2 6 1 7 6 2 3

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

431 
WWUS43 KIND 241200
WSWIND

URGENT - WINTER WEATHER MESSAGE
National Weather Service Indianapolis IN
700 AM EST Sat Dec 24 2022

INZ021-028>031-035>049-051>057-241800-
/O.EXP.KIND.WS.W.0003.000000T0000Z-221224T1200Z/
/O.CON.KIND.WC.Y.0002.000000T0000Z-221224T1800Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-
Johnson-Shelby-Rush-
Including the cities of Delphi, Flora, Williamsport, 
West Lebanon, Lafayette, West Lafayette, Frankfort, Kokomo, 
Attica, Covington, Veedersburg, Crawfordsville, Lebanon, 
Zionsville, Tipton, Fishers, Carmel, Noblesville, Anderson, 
Muncie, Winchester, Union City, Farmland, Parker City, Clinton, 
Fairview Park, Rockville, Montezuma, Rosedale, Greencastle, 
Plainfield, Brownsburg, Danville, Indianapolis, Greenfield, 
New Castle, Terre Haute, Brazil, Spencer, Gosport, Martinsville, 
Mooresville, Greenwood, Franklin, Shelbyville, and Rushville
700 AM EST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...WINTER STORM WARNING WILL EXPIRE AT 7 AM EST THIS MORNING...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  25 below zero.

* WHERE...Portions of central, east central, north central and 
  west central Indiana.

* WHEN...from 7 AM this morning to 1 PM EST this 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. 

&&

$$

INZ060>065-067>072-241800-
/O.EXP.KIND.WS.W.0003.000000T0000Z-221224T1200Z/
/O.CON.KIND.WC.Y.0002.000000T0000Z-221224T1800Z/
Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Sullivan, Carlisle, Shelburn, 
Farmersburg, Linton, Bloomfield, Jasonville, Worthington, 
Bloomington, Nashville, Columbus, Greensburg, Vincennes, 
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour, 
and North Vernon
700 AM EST Sat Dec 24 2022

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...
...WINTER STORM WARNING WILL EXPIRE AT 7 AM EST THIS MORNING...

* WHAT...Very cold wind chills expected. Wind chills as low as 
  20 below zero.

* WHERE...Portions of central, south central, southeast and 
  southwest Indiana.

* WHEN...from 7 AM this morning to 1 PM EST this 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. 

&&

$$

For more information from the National Weather Service visit
https://weather.gov/ind

Area Forecast Discussion
National Weather Service Indianapolis IN
938 AM EST Wed Dec 21 2022

.Forecast Update...
Issued at 937 AM EST Wed Dec 21 2022

Quiet conditions continue this morning and no changes are needed to
the forecast at the moment. An area of low stratus crept into our
CWA overnight but is beginning to retreat. Adjusted cloud cover
slightly to reflect this, but retained an increasing trend as high
clouds are now rapidly expanding eastward. Some haze developed
within the low-level inversion this morning, and reduced
visibilities have been reported across the state. Visibilities
between 3 to 6 miles were common, but nothing under a mile has been
reported. Visibility will improve as the morning progresses and the
temperatures increase.

&&

.Short Term...(Today and tonight)
Issued at 254 AM EST Wed Dec 21 2022

Light northerly flow should gradually trend easterly this morning as
isallobaric response to strong upstream mid-latitude system begins.
Weak warm advection should bring temperatures again up to similar
levels as yesterday, and help low stratus cloud band across
northwest sections of the area abate. Meanwhile, high-level Pacific
moisture stream and resultant cirrus will overspread.

285-K isentropic surface moistens quickly after midnight tonight
with ascent indicated by pressure advection on that surface, and low-
level streamline analysis. Forecast soundings become saturated to a
sufficient depth for drizzle, though a thin near-surface layer may
lag with saturation delaying onset some. Meanwhile, warm advection
should push us above freezing right around or shortly after onset of
light drizzle. In a reasonable worst case scenario a brief period of
freezing drizzle at precipitation onset may occur but this is
unlikely to be impactful due to (1) brief duration, and (2) minimal
amounts.

&&

.Long Term...(Thursday through Tuesday)
Issued at 254 AM EST Wed Dec 21 2022

***********
Highlights:
***********

* Dangerous wind chills to -20F to -30F Friday into Saturday
* Period of high winds (40-55 mph) Thursday night through Friday
* Confidence is increasing in the snow threat with a gradient of 4-6
  inches in the north to around 2-4 in the south.
* Transition from rain to snow continues to trend earlier in evening

*****************
Synoptic Pattern:
*****************

Confidence continues to increase in a rapidly deepening low pressure
system with a surface low pressure system tracking from northern
Texas into the Midwest with rapid cyclogenesis as it crosses into
Indiana and moves to the northeast.  Model ensembles are getting a
better handle on the timing and strength of this cyclogenesis with a
deepening rate of 1-2mb/hr as it passes over central/northern
Indiana. There is still some uncertainty as to the exact timing of
rapid depletion, of which will impact where the heaviest bands of
snowfall will form.

A well developed cold front will pass through Thursday evening into
Thursday night. There has been a trend in the higher res models to
quicken the progression of the cold front, of which seems plausible.
The sheer density gradient of the cold to warm air should allow for
an efficient progression. Prior to frontal passage, an influx of
surface moisture within weak southerly flow should all for extensive
low level cloud cover. Precipitation will be likely, but a mid level
dry layer will likely inhibit droplet growth. This should result in
a more drizzle-like precip vs large rain drops.

Temperatures will rapidly decrease following the passage of the
cold front with precipitation continuing in an anafrontal region. A
warm nose will wrap around the low, producing a TROWAL-like feature.
This should become even more enhanced as the low deepens. Mesobands
are likely to form in this region producing high QPF. This warm nose
will also prolong the depth of DGZ saturation allowing for high
SLRs. This should lead to 1-2"/hr rates at times Thursday night.

As the low moves off to the NE, central Indiana will be encompassed
within an arctic air mass. The extreme cold temperatures in
combination with some low level saturation and steep lapse rates
between 1-3km could lead to snow squalls throughout Friday,
especially over north central Indiana, where lift is more apparent.
This could add additional amounts to increase total snow
accumulation. Any snow that does fall is likely to have lower SLRs
due to the lack of dendrites and mechanical fractures of any snow
flakes that due form.

As mentioned, the low will rapidly deepen Friday into Friday night
creating a very tight pressure gradient over the Great Lakes and
Ohio Valley. This should result in high winds; sustained at 20-30MPH
with gusts up to 50MPH. High winds are expected to stay elevated
until Saturday, when high pressure begins to build, weakening the
pressure gradient

********
Impacts:
********

Snow/Precipitation:

Timing of the arrival of the arctic air looks to be between 6 PM and
10 PM Thursday with rapidly crashing temperatures.  We expect a
quick transition from rain to snow immediately after the frontal
passage with a possible 10-15 minute period of sleet as the colder
air arrives. Confidence in the exact timing remains somewhat
uncertain but confidence is high that temperatures will drop 20-30
degrees in a matter of hours. A flash freeze is likely for whatever
residual precipitation is on the ground after the arrival of the
colder air. This in combination with a quick transition to fairly
high snow rates will lead to a fast degradation in road conditions.
As with frontal passage, the exact timing of heaviest snow remains
uncertain, but will be shortly after the frontal passage. Snow rates
Thursday night could reach 1-2" leading to vary hazardous conditions
for anyone on the roads.

Current thoughts are that snow totals will be around 4-6 inches in
areas north and west of Indianapolis with a gradual gradient towards
2-4 inches across south central Indiana.  The additional snow on
Friday will be focused across north central Indiana.

Cold:

As mentioned, temperatures will quickly drop 25-35 degrees following
frontal passage Thursday night. Winds then will also pick up through
the night with wind chills of 20 to 25 below zero by daybreak
Friday. Temperatures will remain near steady state through the day
Friday with increasing winds and wind chills approaching 30 below
zero.

Near zero to below zero temperatures are then expected Friday night
and Saturday night with wind chills staying below -10 through
Christmas.  The length and severity of this cold will have
compounding impacts with a 72 hour period of continual subzero wind
chills.  With the combination of ground snow and CAA, daytime highs
will struggle to rise out of single digits this weekend.

Wind:

Wind speeds will begin to pick up immediately after the frontal
passage with gusts of 35-45 mph through the overnight hours.
Strengthening near surface level lapse rates combined with the
increasing pressure gradients will then allow for even stronger
winds going into the afternoon hours with occasional 50-55 mph
gusts.  Those stronger gusts will relax after sunset, but remain in
the 30-45 mph range through the overnight hours, especially north of
Indianapolis.  Winds of 25-35 mph will then continue into Saturday.

***********
Conclusion:
***********

A deep low pressure system is expected to progress through the Great
Lakes region Thursday through Saturday. This will provide widespread
precipitation over central Indiana late Thursday through Friday
night. Initially, p-type will be rain/drizzle, but by late Thursday
it will transition to snow. The transition will be quick with the
heaviest snow falling shortly after the transition.

Dangerously cold wind chills, damaging winds, and blowing snow will
lead to treacherous travel conditions Friday with lesser impacts
going into Saturday.  If planning to travel Thursday night or
Friday, it is time to find an alternative plan.

Regarding headlines; continuing the watch for all of central
Indiana. While snow amounts may not reach the standard criteria,
especially towards Vincennes, the overall impacts of the winds,
snow, and cold warrant the watch.  The watch also covers the full
period of high weather impacts with a period where the snow is the
primary impact before the period where the wind and cold becomes
more impactful.

*********************************************************************

Christmas Day(Sunday), and Early Next Week:

On Christmas Day, we will remain in cyclonic low-level flow cold
advection regime on the periphery of occluding poleward migrating
deep cyclone. However, the moisture should have largely shifted
northeast of the area resulting in at least partial clearing. There
is a sizable spread among deterministic and ensemble model
temperatures Sunday and Monday, likely primarily driven by variances
in handling the footprint of snow cover and its augmentation of
radiative processes. Furthermore, there has been a trend toward a
more amplified ridge/trough pattern in the ensemble means which
generally suppresses the baroclinic zone further westward in the
Plains and guides the next shortwave on a more westward path. This
may delay our warm-up, particularly if snowcover remains robust. We
have trended temperatures on Monday toward raw models and away from
the inertial lag and other biases of the national blend, given the
pattern and conceptual model.

We will retain low snow probabilities late Sunday night into early
Monday, though confidence is low. ECMWF/EPS camp is more
latitudenally-extensive with this next shortwave, whereas GFS/GEFS
is more closed off and focused with ascent in the lower-mid
Mississippi Valley. Chaos in spaghetti plots of the 500-mb pattern
grows considerably during this time. There is some overlap from
model camps in clusters, however, and it seems plausible that a
period of at least modest ascent will occur across the area Sunday
night into early Monday. Lack of much of an IVT/moisture return
signal should preclude a more significant precipitation event even
in the most optimal path to maximize ascent for central Indiana.

The general trend into mid-week is toward some magnitude of a warm
advection signal in most medium-range models as the pattern
deamplifies and becomes more progressive.

&&

.Aviation...(12Z TAF Issuance)
Issued at 552 AM EST Wed Dec 21 2022

Impacts:

* MVFR/IFR ceilings KLAF through the morning

* MVFR temporarily at KHUF and possibly KIND through mid-morning.

* Winds trending southeasterly but remaining light.

* Deteriorating ceilings and drizzle possible toward the end of the
  TAF period.

Discussion:

Near and north of a surface trough, MVFR to IFR stratus is occurring
over KLAF and to near KIND and KHUF. Confidence is low that
restrictions will occur at KIND this morning more than temporarily.
Improving conditions at all sites is expected by late morning
or early afternoon as the stratus retreats northward.

VFR conditions will return until tonight when ceilings will lower to
IFR and some drizzle is possible.

&&

.IND WATCHES/WARNINGS/ADVISORIES...
Winter Storm Watch from Thursday afternoon through Saturday
morning for INZ021-028>031-035>049-051>057-060>065-067>072.

&&

Update...Eckhoff
Short Term...BRB
Long Term...Updike
Aviation...BRB

Hazardous Weather Outlook
National Weather Service Indianapolis IN
313 AM EST Wed Dec 21 2022

INZ021-028>031-035>049-051>057-060>065-067>072-220815-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-Owen-Morgan-Johnson-Shelby-
Rush-Sullivan-Greene-Monroe-Brown-Bartholomew-Decatur-Knox-Daviess-
Martin-Lawrence-Jackson-Jennings-
Including the cities of Delphi, Flora, Williamsport, West Lebanon,
Lafayette, West Lafayette, Frankfort, Kokomo, Attica, Covington,
Veedersburg, Crawfordsville, Lebanon, Zionsville, Tipton, Fishers,
Carmel, Noblesville, Anderson, Muncie, Winchester, Union City,
Farmland, Parker City, Clinton, Fairview Park, Rockville, Montezuma,
Rosedale, Greencastle, Plainfield, Brownsburg, Danville,
Indianapolis, Greenfield, New Castle, Terre Haute, Brazil, Spencer,
Gosport, Martinsville, Mooresville, Greenwood, Franklin,
Shelbyville, Rushville, Sullivan, Carlisle, Shelburn, Farmersburg,
Linton, Bloomfield, Jasonville, Worthington, Bloomington, Nashville,
Columbus, Greensburg, Vincennes, Washington, Loogootee, Shoals,
Bedford, Mitchell, Seymour, and North Vernon
313 AM EST Wed Dec 21 2022

This hazardous weather outlook is for central Indiana.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

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

Dangerously cold temperatures are expected Thursday night through
Monday with wind chills as low as 30 below zero at times.

Accumulating snowfall of 3 to 6 inches is expected Thursday night
into Friday. Travel difficulty due to wintry precipitation may occur
across central Indiana during this period. Wet roads could freeze
rapidly Thursday evening and overnight as very cold air quickly
moves in. Additionally, accumulating snow on roads is expected. Areas
of blowing snow causing reduced visibility are possible late
Thursday night and Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter reports of measured snowfall amounts may be needed late this
week.

&&

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