Alert archive / Montana / Winter Storm Warnings in 2017

Winter Storm Warning 13, NWS Great Falls, MT

December 17, 2017

NWS Great Falls, MT issued this winter storm warning at Dec 17, 2017, 3:10 AM MST. It took effect at Dec 17, 2017, 5:00 PM MST. It was in force for 3 days. 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 17, 2017, 3:10 AM MST (10:10 UTC)
In effect from
Dec 17, 2017, 5:00 PM MST
Expired
Dec 20, 2017, 8:36 PM MST
In force
3 days
Issued by
NWS Great Falls, MT

The text

As transmitted.

664 
WWUS45 KTFX 171010
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
310 AM MST Sun Dec 17 2017

MTZ009-172300-
/O.NEW.KTFX.WS.W.0013.171218T0000Z-171220T1800Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, and Heart Butte
310 AM MST Sun Dec 17 2017

...WINTER STORM WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 AM MST WEDNESDAY...

* WHAT...Heavy snow and areas of blowing snow expected. Travel 
  will be difficult. Damage to trees and power lines is possible. 
  Total snow accumulations of 18 to 24 inches, with localized 
  amounts up to 48 inches at the highest elevations, are expected.

* WHERE...Northern Rocky Mountain Front, including Marias Pass.

* WHEN...From 5 PM this afternoon to 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls
14 follow-up statements
961 
WWUS45 KTFX 172157
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
257 PM MST Sun Dec 17 2017

...Winter Storm to Impact Much of Central Montana early this Week...

MTZ009-181300-
/O.CON.KTFX.WS.W.0013.171218T0000Z-171220T1800Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, and Heart Butte
257 PM MST Sun Dec 17 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Travel will be very
  difficult, including during the evening commute on Tuesday.
  Damage to trees, power lines, and buildings is possible. Total 
  snow accumulations of 1 to 2 feet expected in the foothills, 
  with higher amounts over Marias Pass and in the mountains.

* WHERE...Northern Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday. The heaviest snow is expected
  on Tuesday.

* ADDITIONAL DETAILS...Winds gusting as high as 45 to 55 mph will
  cause widespread blowing and drifting snow, especially favored
  locations along and east of the mountains.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions can be obtained by calling 
5 1 1.

$$

MARTIN

MTZ010-044>046-048-181300-
/O.NEW.KTFX.WS.A.0014.171219T0700Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-
Southern Rocky Mountain Front-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, Conrad, Bynum, Choteau, and Augusta
257 PM MST Sun Dec 17 2017

...WINTER STORM WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...Heavy snow and blowing snow possible. Plan on the 
  possibility of difficult travel conditions, including during the
  morning commute on Tuesday. Total snow accumulations of 5 to 10
  inches are possible, with higher amounts near Cut Bank and 
  along the southern Rocky Mountain Front.

* WHERE...Eastern Glacier, Toole, Liberty, Eastern Pondera and 
  Southern Rocky Mountain Front.

* WHEN...From late Monday night through Wednesday morning. The
  heaviest snow is expected on Tuesday.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible, along with areas of blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow accumulations that may impact travel. Continue to monitor 
the latest forecasts.

$$

MARTIN

MTZ011>013-047-049>051-054-181300-
/O.NEW.KTFX.WS.A.0014.171219T1300Z-171220T1800Z/
Hill-Cascade-Chouteau-Blaine-Eastern Teton-Judith Basin-Fergus-
Meagher-
Including the following locations Havre, Rocky Boy, Rudyard, 
Great Falls, Cascade, Belt, Kings Hill Pass, Fort Benton, Carter,
Big Sandy, Chinook, Harlem, Hays, Fairfield, Dutton, Raynesford, 
Stanford, Hobson, Lewistown, Winifred, Lewistown Divide, 
Grass Range, Martinsdale, and White Sulphur Springs
257 PM MST Sun Dec 17 2017

...WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
WEDNESDAY MORNING...

* WHAT...Heavy snow possible. Plan on primarily travel
  difficulties, including during the evening commute on Tuesday.
  Total snow accumulations of 2 to 5 inches are possible, with 
  higher amounts of 4 to 8 inches along the Hi-line.

* WHERE...Portions of central and north central Montana.

* WHEN...From Tuesday morning through Wednesday morning. A lull in
  the snow is possible Tuesday afternoon and evening from Great 
  Falls to Lewistown.

* ADDITIONAL DETAILS...Significant reductions in visibility are
  possible. Patchy blowing snow is possible on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for travel impacts
due to snow. Continue to monitor the latest forecasts.

$$

MARTIN

http://www.weather.gov/greatfalls
379 
WWUS45 KTFX 181015
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
315 AM MST Mon Dec 18 2017

...Winter Storm to Impact Much of Central Montana early this
Week...

MTZ009-182300-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, and Heart Butte
315 AM MST Mon Dec 18 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow occurring. Travel will be
  very difficult to impossible, including during the evening
  commute on Tuesday. Damage to trees and power lines is possible.
  Additional snow accumulations of 1 to 2 feet in the foothills,
  with higher amounts over Marias Pass and in the mountains, is
  expected.

* WHERE...Northern Rocky Mountain Front including Marias Pass.

* WHEN...Until 11 AM MST Wednesday. The heaviest snow is expected
  on Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times. Winds gusting as high as 65 mph will cause
  widespread blowing and drifting snow, especially near favored 
  locations along and east of the mountains.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ048-182300-
/O.UPG.KTFX.WS.A.0014.171219T0700Z-171220T1800Z/
/O.NEW.KTFX.WW.Y.0050.171218T1015Z-171220T1800Z/
Southern Rocky Mountain Front-
Including the following locations Bynum, Choteau, and Augusta
315 AM MST Mon Dec 18 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST WEDNESDAY...

* WHAT...Snow and blowing snow occurring. Travel will be very
  difficult to impossible in the mountains. Damage to trees and 
  power lines is possible. Total snow accumulations of 12 to 18 
  inches, with higher amounts in the mountains, is expected.

* WHERE...Southern Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reductions in visibility at
  times. Winds gusting as high as 65 mph will cause widespread 
  blowing and drifting snow, especially near favored locations 
  along and east of the mountains.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

MTZ014-182300-
/O.NEW.KTFX.WW.Y.0050.171218T1015Z-171220T1800Z/
Central and Southern Lewis and Clark-
Including the following locations Lincoln and Rogers Pass
315 AM MST Mon Dec 18 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 AM MST WEDNESDAY...

* WHAT...Snow and areas of blowing snow occurring. Plan on  
  difficult travel conditions, including during the evening 
  commute. Damage to trees and power lines is possible. Total snow
  accumulations of 6 to 12 inches, with higher amounts in the 
  mountains, is expected.

* WHERE...Central and Southern Lewis and Clark, including Rogers
  Pass.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reductions in visibility at
  times. Winds gusting as high as 55 mph will cause widespread
  blowing and drifting snow, especially near favored locations
  along and east of the mountains.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

MTZ010-044>046-182300-
/O.CON.KTFX.WS.A.0014.171219T0700Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, and Conrad
315 AM MST Mon Dec 18 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...Heavy snow and areas of blowing snow possible. Plan on 
  difficult travel conditions, including during the morning 
  commute on Tuesday. Total snow accumulations of 5 to 8 inches, 
  with localized amounts up to 16 inches, are possible.

* WHERE...Eastern Glacier, Toole, Liberty and Eastern Pondera.

* WHEN...From late tonight through Wednesday morning.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

MTZ011>013-047-049>051-054-182300-
/O.CON.KTFX.WS.A.0014.171219T1300Z-171220T1800Z/
Hill-Cascade-Chouteau-Blaine-Eastern Teton-Judith Basin-Fergus-
Meagher-
Including the following locations Havre, Rocky Boy, Rudyard, 
Great Falls, Cascade, Belt, Kings Hill Pass, Fort Benton, Carter,
Big Sandy, Chinook, Harlem, Hays, Fairfield, Dutton, Raynesford, 
Stanford, Hobson, Lewistown, Winifred, Lewistown Divide, 
Grass Range, Martinsdale, and White Sulphur Springs
315 AM MST Mon Dec 18 2017

...WINTER STORM WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH WEDNESDAY MORNING...

* WHAT...Heavy snow and areas of blowing snow possible. Plan on
  difficult travel conditions, including during the morning
  commute on Wednesday. Total snow accumulations of 3 to 6 
  inches, with localized amounts up to 10 inches, are possible.

* WHERE...Portions of central and north central Montana.

* WHEN...From Tuesday morning through Wednesday morning.

* ADDITIONAL DETAILS...Significant reductions in visibility are 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

http://www.weather.gov/greatfalls
564 
WWUS45 KTFX 182110
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
210 PM MST Mon Dec 18 2017

...Winter Storm to Impact Much of Central Montana early this
Week...

MTZ010-044>046-191300-
/O.UPG.KTFX.WS.A.0014.171219T0700Z-171220T1800Z/
/O.EXB.KTFX.WS.W.0013.171219T0700Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, and Conrad
210 PM MST Mon Dec 18 2017

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 11 AM
MST WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Plan on difficult
  travel conditions. The weight of the snow may cause damage to
  trees and power lines. Total snow accumulations of 8 to 12 
  inches, with locally higher amounts near Cut Bank.

* WHERE...Eastern Glacier, Toole, Liberty and Eastern Pondera.

* WHEN...From midnight tonight to 11 AM MST Wednesday. The
  heaviest snow will occur on Tuesday.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MARTIN

MTZ011-013-047-191300-
/O.UPG.KTFX.WS.A.0014.171219T1300Z-171220T1800Z/
/O.EXB.KTFX.WS.W.0013.171219T1500Z-171220T1800Z/
Hill-Chouteau-Blaine-
Including the following locations Havre, Rocky Boy, Rudyard, 
Fort Benton, Carter, Big Sandy, Chinook, Harlem, and Hays
210 PM MST Mon Dec 18 2017

...WINTER STORM WARNING IN EFFECT FROM 8 AM TUESDAY TO 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Total snow accumulations of 4 to 8 inches are expected, with
  higher amounts in the mountains.

* WHERE...Hill, Chouteau and Blaine.

* WHEN...From 8 AM Tuesday to 11 AM MST Wednesday. The heaviest
  snow will occur on Tuesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times. Areas of blowing snow are expected as well.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MARTIN

MTZ009-191300-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, and Heart Butte
210 PM MST Mon Dec 18 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow occurring. Travel will be
  very difficult to impossible. The weight of the snow may cause
  damage to trees, power lines, and roofs. Additional snow
  accumulations of 1 to 2 feet in the foothills, with up to 3 feet 
  over Marias Pass.

* WHERE...Northern Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday. The heaviest snow will occur
  on Tuesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MARTIN

MTZ012-049>051-054-191300-
/O.UPG.KTFX.WS.A.0014.171219T1300Z-171220T1800Z/
/O.EXB.KTFX.WW.Y.0050.171219T1300Z-171220T2100Z/
Cascade-Eastern Teton-Judith Basin-Fergus-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Fairfield, Dutton, Raynesford, Stanford, Hobson,
Lewistown, Winifred, Lewistown Divide, Grass Range, Martinsdale, 
and White Sulphur Springs
210 PM MST Mon Dec 18 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 AM TUESDAY TO 2 PM
MST WEDNESDAY...

* WHAT...Snow expected. Plan on difficult travel conditions at
  times. Total snow accumulations of 3 to 6 inches are expected
  over the plains, with 6 to 12 inches in the mountains.

* WHERE...Cascade, Eastern Teton, Judith Basin, Fergus and 
  Meagher.

* WHEN...From 6 AM Tuesday to 2 PM MST Wednesday. A brief lull in
  the snow is possible Tuesday afternoon and evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times. Areas of blowing snow are expected on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

MARTIN

MTZ014-048-191300-
/O.CON.KTFX.WW.Y.0050.000000T0000Z-171220T1800Z/
Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-
Including the following locations Lincoln, Rogers Pass, Bynum, 
Choteau, and Augusta
210 PM MST Mon Dec 18 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Travel will be difficult over mountain
  passes. Additional snow accumulations of 8 to 12 inches are
  expected at pass level.

* WHERE...Central and Southern Lewis and Clark and Southern 
  Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls

MARTIN
564 
WWUS45 KTFX 182214
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
314 PM MST Mon Dec 18 2017

...Winter Storm to Impact Much of Central Montana through
Wednesday Afternoon...

MTZ010-044>046-191315-
/O.EXT.KTFX.WS.W.0013.171218T2214Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, and Conrad
314 PM MST Mon Dec 18 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST WEDNESDAY...

* WHAT...Heavy snow and blowing snow expected. Plan on difficult
  travel conditions. The weight of the snow may cause damage to
  trees and power lines. Total snow accumulations of 8 to 12 
  inches, with locally higher amounts near Cut Bank.

* WHERE...Eastern Glacier, Toole, Liberty and Eastern Pondera.

* WHEN...Until 11 AM MST Wednesday. The heaviest snow will occur
  Tuesday. 

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow. Be prepared for significant
  reductions in visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ011-013-047-191315-
/O.EXT.KTFX.WS.W.0013.171218T2214Z-171220T1800Z/
Hill-Chouteau-Blaine-
Including the following locations Havre, Rocky Boy, Rudyard, 
Fort Benton, Carter, Big Sandy, Chinook, Harlem, and Hays
314 PM MST Mon Dec 18 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 AM MST WEDNESDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions. Additional snow accumulations of 5 to 8 inches are
  expected, with higher amounts in the mountains.

* WHERE...Hill, Chouteau and Blaine.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ009-191315-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, and Heart Butte
314 PM MST Mon Dec 18 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow occurring. Travel will be
  very difficult to impossible at times. The weight of the snow
  may cause damage to trees, power lines, and roofs. Additional
  snow accumulations of 1 to 2 feet in the foothills, with up to 3
  feet over Marias Pass.

* WHERE...Northern Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday. The heaviest snow will occur
  Tuesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ012-049>051-054-191315-
/O.EXT.KTFX.WW.Y.0050.171219T0000Z-171220T2100Z/
Cascade-Eastern Teton-Judith Basin-Fergus-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Fairfield, Dutton, Raynesford, Stanford, Hobson,
Lewistown, Winifred, Lewistown Divide, Grass Range, Martinsdale, 
and White Sulphur Springs
314 PM MST Mon Dec 18 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 PM MST
WEDNESDAY...

* WHAT...Snow expected. Plan on difficult travel conditions at
  times. Total snow accumulations of 3 to 6 inches are expected
  over the plains, with 6 to 12 inches in the mountains.

* WHERE...Cascade, Eastern Teton, Judith Basin, Fergus and 
  Meagher.

* WHEN...Until 2 PM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times. Areas of blowing snow are expected Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

MTZ014-048-191315-
/O.CON.KTFX.WW.Y.0050.000000T0000Z-171220T1800Z/
Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-
Including the following locations Lincoln, Rogers Pass, Bynum, 
Choteau, and Augusta
314 PM MST Mon Dec 18 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Travel will be difficult over mountain
  passes. Additional snow accumulations of 8 to 12 inches are
  expected at pass level.

* WHERE...Central and Southern Lewis and Clark and Southern 
  Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls
873 
WWUS45 KTFX 190250
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
750 PM MST Mon Dec 18 2017

...Winter Storm to Impact Much of Central Montana through
Wednesday Afternoon...

MTZ012-050-051-054-191800-
/O.UPG.KTFX.WW.Y.0050.000000T0000Z-171220T2100Z/
/O.EXB.KTFX.WS.W.0013.000000T0000Z-171220T2100Z/
Cascade-Judith Basin-Fergus-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Raynesford, Stanford, Hobson, Lewistown, 
Winifred, Lewistown Divide, Grass Range, Martinsdale, 
and White Sulphur Springs
750 PM MST Mon Dec 18 2017

...WINTER STORM WARNING IN EFFECT UNTIL 2 PM MST WEDNESDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions. Additional snow accumulations of 4 to 7 inches, with
  localized amounts up to 10 inches, are expected. Accumulations
  over Kings Hill Pass may approach 2 feet. 

* WHERE...Cascade, Judith Basin, Fergus and Meagher.

* WHEN...Until 2 PM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ011-013-047-191800-
/O.EXT.KTFX.WS.W.0013.000000T0000Z-171220T2100Z/
Hill-Chouteau-Blaine-
Including the following locations Havre, Rocky Boy, Rudyard, 
Fort Benton, Carter, Big Sandy, Chinook, Harlem, and Hays
750 PM MST Mon Dec 18 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 2 PM MST WEDNESDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the morning commute on Wednesday.
  Additional snow accumulations of 6 to 9 inches, with localized
  amounts up to 14 inches in the Bears Paw Mountains, are 
  expected.

* WHERE...Hill, Chouteau and Blaine.

* WHEN...Until 2 PM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ009-191800-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, and Heart Butte
750 PM MST Mon Dec 18 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow occurring. Travel will be
  very difficult to impossible, including during the evening
  commute on Tuesday. Additional snow accumulations of 1 to 2 feet
  in the foothills, with up to 3 feet over Marias Pass, are
  expected.
  
* WHERE...Northern Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ010-044>046-191800-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, and Conrad
750 PM MST Mon Dec 18 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow occurring. Plan on difficult
  travel conditions. The weight of the snow may cause damage to
  trees and power lines. Total snow accumulations of 8 to 12 
  inches are expected, with locally higher amounts near Cut Bank.

* WHERE...Eastern Glacier, Toole, Liberty and Eastern Pondera.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ049-191800-
/O.EXT.KTFX.WW.Y.0050.000000T0000Z-171220T1800Z/
Eastern Teton-
Including the following locations Fairfield and Dutton
750 PM MST Mon Dec 18 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions. 
  Total snow accumulations of 5 to 7 inches are expected.

* WHERE...Eastern Teton.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

MTZ014-048-191800-
/O.CON.KTFX.WW.Y.0050.000000T0000Z-171220T1800Z/
Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-
Including the following locations Helena, Lincoln, 
MacDonald Pass, Rogers Pass, Bynum, Choteau, and Augusta
750 PM MST Mon Dec 18 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Travel will be difficult, especially 
  over mountain passes. Additional snow accumulations of 8 to 12 
  inches are expected.

* WHERE...Central and Southern Lewis and Clark and Southern 
  Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls
740 
WWUS45 KTFX 191000
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
300 AM MST Tue Dec 19 2017

...Winter Storm to Impact Much of Central Montana through
Wednesday Afternoon...

MTZ049-192300-
/O.UPG.KTFX.WW.Y.0050.000000T0000Z-171220T1800Z/
/O.EXA.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Eastern Teton-
Including the following locations Fairfield and Dutton
300 AM MST Tue Dec 19 2017

...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST WEDNESDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute. Additional 
  snow accumulations of 4 to 8 inches are expected.

* WHERE...Eastern Teton.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ014-048-192300-
/O.UPG.KTFX.WW.Y.0050.000000T0000Z-171220T1800Z/
/O.EXA.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-
Including the following locations Lincoln, MacDonald Pass, 
Rogers Pass, Bynum, Choteau, and Augusta
300 AM MST Tue Dec 19 2017

...WINTER STORM WARNING IN EFFECT UNTIL 11 AM MST WEDNESDAY...

* WHAT...Heavy snow and areas of blowing snow occurring. Plan on
  difficult travel conditions, including during the evening
  commute. Additional snow accumulations of 6 to 12 inches, with
  localized amounts up to two feet at higher elevations, are 
  expected.

* WHERE...Central and Southern Lewis and Clark and Southern 
  Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ009-192300-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, and Heart Butte
300 AM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow and blowing snow occurring. Travel will be
  very difficult to impossible, including during the evening
  commute. Additional snow accumulations of 1 to 2 feet in the
  foothills and over Marias Pass, with localized amounts up to 4 
  feet at higher elevations, are expected.

* WHERE...Northern Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ010-044>046-192300-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, and Conrad
300 AM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Heavy snow and areas of blowing snow occurring. Plan on 
  difficult travel conditions, including during the evening 
  commute. Additional snow accumulations of 5 to 10 inches, with 
  localized amounts up to 16 inches, are expected.

* WHERE...Eastern Glacier, Toole, Liberty and Eastern Pondera.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ011>013-047-050-051-054-192300-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T2100Z/
Hill-Cascade-Chouteau-Blaine-Judith Basin-Fergus-Meagher-
Including the following locations Havre, Rocky Boy, Rudyard, 
Great Falls, Cascade, Belt, Kings Hill Pass, Fort Benton, Carter,
Big Sandy, Chinook, Harlem, Hays, Raynesford, Stanford, Hobson, 
Lewistown, Winifred, Lewistown Divide, Grass Range, Martinsdale, 
and White Sulphur Springs
300 AM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST
WEDNESDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute on Wednesday. 
  Additional snow accumulations of 4 to 8 inches, with localized 
  amounts up to 14 inches, are expected.

* WHERE...Portions of central and north central Montana.

* WHEN...Until 2 PM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls
786 
WWUS45 KTFX 192231
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
331 PM MST Tue Dec 19 2017

...Winter Storm will continue to impact central and northern
Montana through Wednesday...while snow is also expected to return
across the southwest on Wednesday...

MTZ009-201200-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, and Heart Butte
331 PM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Travel will be very difficult to 
  impossible, including during the evening and Wednesday morning 
  commute. Additional snow accumulations of 11 to 15 inches, with 
  localized amounts up to 19 inches, are expected.

* WHERE...Northern Rocky Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will 
  cause patchy blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ010-044>046-049-201200-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-Eastern Teton-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, Conrad, Fairfield, and Dutton
331 PM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions. 
  Additional snow accumulations of 4 to 7 inches, with localized 
  amounts up to 10 inches, are expected.

* WHERE...Eastern Glacier, Toole, Liberty, Eastern Pondera and 
  Eastern Teton.

* WHEN...Light snow will be found through the evening. Light to
  moderate snow is then possible tonight through Wednesday morning.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times. Areas of blowing snow are expected to
  develop on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ011>013-047-050-051-054-201200-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T2100Z/
Hill-Cascade-Chouteau-Blaine-Judith Basin-Fergus-Meagher-
Including the following locations Havre, Rocky Boy, Rudyard, 
Great Falls, Cascade, Belt, Kings Hill Pass, Fort Benton, Carter,
Big Sandy, Chinook, Harlem, Hays, Raynesford, Stanford, Hobson, 
Lewistown, Winifred, Lewistown Divide, Grass Range, Martinsdale, 
and White Sulphur Springs
331 PM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST
WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions, 
  including during the evening commute, and again on the morning 
  commute on Wednesday. Additional snow accumulations of 4 to 7 
  inches, with localized amounts up to 9 inches, are expected.

* WHERE...Much of central and northern Montana.

* WHEN...Light snow will be found through the evening. Light to
  moderate snow is then possible tonight through Wednesday morning.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Areas of blowing snow are expected to
  develop on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ014-048-201200-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-
Including the following locations Helena, Lincoln, 
MacDonald Pass, Rogers Pass, Bynum, Choteau, and Augusta
331 PM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions, 
  including during the evening commute and again on the Wednesday 
  morning commute. Additional snow accumulations of 5 to 8 inches,
  with localized amounts up to 13 inches, are expected.

* WHERE...Central and Southern Lewis and Clark and Southern 
  Rocky Mountain Front.

* WHEN...Light snow will be found through the evening. Light to
  moderate snow is then possible tonight through Wednesday morning.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ008-015-052-053-055-201200-
/O.NEW.KTFX.WW.Y.0051.171220T1200Z-171221T0000Z/
Beaverhead-Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Big Hole Pass, Wisdom, Dillon, 
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill, 
Raynolds Pass, Twin Bridges, Virginia City, Montana City, 
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, 
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass, 
Bozeman Pass, and Targhee Pass
331 PM MST Tue Dec 19 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 5 PM MST
WEDNESDAY...

* WHAT...Snow expected. Plan on slippery road conditions,
  including during the morning commute on Wednesday. Total snow
  accumulations of 1 to 4 inches, with higher amounts in the
  mountains, are expected.

* WHERE...Beaverhead, Madison, Jefferson, Broadwater and 
  Gallatin.

* WHEN...From 5 AM to 5 PM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times. Those with outdoor plans should prepare for the return of
  winter conditions...and be mindful of increased avalanche
  danger.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls
858 
WWUS45 KTFX 200144
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
644 PM MST Tue Dec 19 2017

...Winter Storm will continue to impact central and northern
Montana through Wednesday...while snow is also expected to return
across the southwest on Wednesday...

MTZ011-013-047-201200-
/O.EXT.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Hill-Chouteau-Blaine-
Including the following locations Havre, Rocky Boy, Rudyard, 
Fort Benton, Carter, Big Sandy, Chinook, Harlem, and Hays
644 PM MST Tue Dec 19 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM MST WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions,
  including during the morning commute on Wednesday. Additional
  snow accumulations of 4 to 8 inches, with localized amounts up
  to 9 inches, are expected.

* WHERE...Hill, Chouteau and Blaine.

* WHEN...Periods of light snow will be found through the evening.
  Light to moderate snow is then expected overnight tonight 
  through Wednesday morning into the afternoon hours.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Areas of blowing snow are expected to
  develop on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ012-050-051-054-201200-
/O.EXT.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Cascade-Judith Basin-Fergus-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Raynesford, Stanford, Hobson, Lewistown, 
Winifred, Lewistown Divide, Grass Range, Martinsdale, 
and White Sulphur Springs
644 PM MST Tue Dec 19 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM MST WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions,
  including during the morning commute on Wednesday. Additional
  snow accumulations of 2 to 4 inches, with localized amounts up
  to 8 inches across the mountains and Kings Hill Pass, are 
  expected.

* WHERE...Cascade, Judith Basin, Fergus and Meagher.

* WHEN...Periods of light snow will be found through the evening.
  Light to moderate snow is then expected tonight through 
  Wednesday morning into the afternoon hours.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Areas of blowing snow are expected to
  develop on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ014-201200-
/O.EXT.KTFX.WS.W.0013.000000T0000Z-171220T2100Z/
Central and Southern Lewis and Clark-
Including the following locations Helena, Lincoln, 
MacDonald Pass, and Rogers Pass
644 PM MST Tue Dec 19 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 2 PM MST WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions,
  including during the morning commute on Wednesday. Additional
  snow accumulations of 2 to 4 inches across the Helena Valley,
  with 4 to 8 inches across MacDonald and Rogers Pass, are 
  expected.

* WHERE...Central and Southern Lewis and Clark.

* WHEN...Periods of light snow will be found through the evening.
  Light to moderate snow is then expected tonight through 
  Wednesday morning into the afternoon hours.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Areas of blowing snow are expected to
  develop on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ009-048-201200-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-Southern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, Heart Butte, Bynum, Choteau, and Augusta
644 PM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions,
  including during the evening commute and Wednesday morning
  commute. Additional snow accumulations of 5 to 8 inches, with 
  localized amounts up to 15 inches, are expected.

* WHERE...Northern Rocky Mountain Front and Southern Rocky 
  Mountain Front.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Areas of blowing snow are expected to
  develop on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ010-044>046-049-201200-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-Eastern Teton-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, Conrad, Fairfield, and Dutton
644 PM MST Tue Dec 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY...

* WHAT...Snow occurring. Plan on difficult travel conditions. 
  Additional snow accumulations of 3 to 5 inches, with localized 
  amounts up to 8 inches, are expected.

* WHERE...Eastern Glacier, Toole, Liberty, Eastern Pondera and 
  Eastern Teton.

* WHEN...Until 11 AM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times. Areas of blowing snow are expected to
  develop on Wednesday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ008-015-052-053-055-201200-
/O.CON.KTFX.WW.Y.0051.171220T1200Z-171221T0000Z/
Beaverhead-Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Big Hole Pass, Wisdom, Dillon, 
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill, 
Raynolds Pass, Twin Bridges, Virginia City, Montana City, 
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, 
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass, 
Bozeman Pass, and Targhee Pass
644 PM MST Tue Dec 19 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 5 PM
MST WEDNESDAY...

* WHAT...Snow expected. Plan on slippery road conditions,
  including during the morning commute on Wednesday. Total snow
  accumulations of 1 to 4 inches, with localized amounts up to 9 
  inches across the mountains, are expected.

* WHERE...Beaverhead, Madison, Jefferson, Broadwater and 
  Gallatin.

* WHEN...From 5 AM to 5 PM MST Wednesday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times. Those with outdoor plans should prepare for the return of
  winter conditions...and be mindful of increased avalanche
  danger.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls
457 
WWUS45 KTFX 201018
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
318 AM MST Wed Dec 20 2017

...Winter Storm will continue to impact central and northern
Montana through Wednesday...while snow is also expected to return
across the southwest on Wednesday...

MTZ009-048-201800-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-Southern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, Heart Butte, Bynum, Choteau, and Augusta
318 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Heavy snow occurring. Plan on difficult travel  
  conditions. Additional snow accumulations of 3 to 5 inches are 
  expected.

* WHERE...Northern Rocky Mountain Front and Southern Rocky 
  Mountain Front.

* WHEN...Until 11 AM MST this morning.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ010-044>046-049-201800-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Eastern Glacier-Toole-Liberty-Eastern Pondera-Eastern Teton-
Including the following locations Cut Bank, Shelby, Sunburst, 
Chester, Whitlash, Brady, Conrad, Fairfield, and Dutton
318 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions. Additional snow accumulations of 3 to 5 inches are 
  expected.

* WHERE...Eastern Glacier, Toole, Liberty, Eastern Pondera and 
  Eastern Teton.

* WHEN...Until 11 AM MST this morning.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ011-013-047-210000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Hill-Chouteau-Blaine-
Including the following locations Havre, Rocky Boy, Rudyard, 
Fort Benton, Carter, Big Sandy, Chinook, Harlem, and Hays
318 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute. Additional 
  snow accumulations of 4 to 7 inches are expected.

* WHERE...Hill, Chouteau and Blaine.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ012-050-051-054-210000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Cascade-Judith Basin-Fergus-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Raynesford, Stanford, Hobson, Lewistown, 
Winifred, Lewistown Divide, Grass Range, Martinsdale, 
and White Sulphur Springs
318 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute. Additional 
  snow accumulations of 2 to 4 inches, with localized amounts up 
  to 6 inches, are expected.

* WHERE...Cascade, Judith Basin, Fergus and Meagher.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ014-202100-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T2100Z/
Central and Southern Lewis and Clark-
Including the following locations Helena, Lincoln, 
MacDonald Pass, and Rogers Pass
318 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute. Additional 
  snow accumulations of 3 to 5 inches are expected.

* WHERE...Central and Southern Lewis and Clark.

* WHEN...Until 2 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ008-015-052-053-055-210000-
/O.CON.KTFX.WW.Y.0051.171220T1200Z-171221T0000Z/
Beaverhead-Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Big Hole Pass, Wisdom, Dillon, 
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill, 
Raynolds Pass, Twin Bridges, Virginia City, Montana City, 
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, 
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass, 
Bozeman Pass, and Targhee Pass
318 AM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Snow expected. Plan on slippery road conditions,
  including during the morning commute. Total snow accumulations
  of 1 to 3 inches, with localized amounts up to 10 inches in the
  mountains, are expected.

* WHERE...Beaverhead, Madison, Jefferson, Broadwater and 
  Gallatin.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

http://www.weather.gov/greatfalls
183 
WWUS45 KTFX 201748
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1048 AM MST Wed Dec 20 2017

MTZ009-010-044>046-048-049-201900-
/O.CAN.KTFX.WS.W.0013.000000T0000Z-171220T1800Z/
Northern Rocky Mountain Front-Eastern Glacier-Toole-Liberty-
Eastern Pondera-Southern Rocky Mountain Front-Eastern Teton-
1048 AM MST Wed Dec 20 2017

...WINTER STORM WARNING IS CANCELLED...

Snow is diminishing over the region. Thus the winter storm warning
has been cancelled.

$$

MTZ011-013-047-051-210000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Hill-Chouteau-Blaine-Fergus-
Including the following locations Havre, Rocky Boy, Rudyard, 
Fort Benton, Carter, Big Sandy, Chinook, Harlem, Hays, Lewistown,
Winifred, Lewistown Divide, and Grass Range
1048 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow...heavy at times through mid afternoon
  occurring. New snow accumulations this afternoon of 1 to 3
  inches.

* WHERE...Hill, Chouteau, Blaine and Fergus.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow. Visibility will be reduced
  to less than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ012-050-054-210000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Cascade-Judith Basin-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Raynesford, Stanford, Hobson, Martinsdale, 
and White Sulphur Springs
1048 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow...heavy at times through mid afternoon 
  occurring. New snow accumulations this afternoon of 1 to 3 
  inches.

* WHERE...Cascade, Judith Basin, Meagher counties.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow. Visibility will be reduced
  to less than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ014-202100-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T2100Z/
Central and Southern Lewis and Clark-
Including the following locations Helena, Lincoln, 
MacDonald Pass, and Rogers Pass
1048 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow through mid afternoon. New snow
  accumulations of 1 to 2 inches this afternoon.

* WHERE...Central and Southern Lewis and Clark.

* WHEN...Until 2 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times. Blowing snow will reduce visibility to less
  than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ008-015-052-053-055-210000-
/O.CON.KTFX.WW.Y.0051.000000T0000Z-171221T0000Z/
Beaverhead-Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Big Hole Pass, Wisdom, Dillon, 
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill, 
Raynolds Pass, Twin Bridges, Virginia City, Montana City, 
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, 
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass, 
Bozeman Pass, and Targhee Pass
1048 AM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow occurring. Heavy at times. New snow
  accumulations of 1 to 3 inches this afternoon.

* WHERE...Beaverhead, Madison, Jefferson, Broadwater and Gallatin
  counties.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 25 mph will cause
  areas of blowing and drifting snow. Visibility will be reduced
  to less than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

$$

http://www.weather.gov/greatfalls
973 
WWUS45 KTFX 201843
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1143 AM MST Wed Dec 20 2017

MTZ011-013-047-051-210000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Hill-Chouteau-Blaine-Fergus-
Including the following locations Havre, Rocky Boy, Rudyard, 
Fort Benton, Carter, Big Sandy, Chinook, Harlem, Hays, Lewistown,
Winifred, Lewistown Divide, and Grass Range
1143 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow...heavy at times through mid afternoon
  occurring. New snow accumulations this afternoon of 1 to 3
  inches.

* WHERE...Hill, Chouteau, Blaine and Fergus.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow. Visibility will be reduced
  to less than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

MTZ012-050-054-210000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Cascade-Judith Basin-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Raynesford, Stanford, Hobson, Martinsdale, 
and White Sulphur Springs
1143 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow...heavy at times. Snowfall rates of 1 to
  2 inches per hour through this afternoon. New snowfall
  accumulations through 5 PM of 3 to 6 inches at lower elevations,
  and up to 8 inches in the mountains.

* WHERE...Cascade, Judith Basin and Meagher counties.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow. Visibility will be reduced
  to less than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

MTZ014-202100-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171220T2100Z/
Central and Southern Lewis and Clark-
Including the following locations Helena, Lincoln, 
MacDonald Pass, and Rogers Pass
1143 AM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow through mid afternoon. New snow
  accumulations of 1 to 2 inches this afternoon.

* WHERE...Central and Southern Lewis and Clark.

* WHEN...Until 2 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in
  visibility at times. Blowing snow will reduce visibility to less
  than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

MTZ008-015-052-053-055-210000-
/O.CON.KTFX.WW.Y.0051.000000T0000Z-171221T0000Z/
Beaverhead-Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Big Hole Pass, Wisdom, Dillon, 
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill, 
Raynolds Pass, Twin Bridges, Virginia City, Montana City, 
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, 
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass, 
Bozeman Pass, and Targhee Pass
1143 AM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow occurring. Heavy at times. New snow
  accumulations of 1 to 3 inches this afternoon.

* WHERE...Beaverhead, Madison, Jefferson, Broadwater and Gallatin
  counties.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 25 mph will cause
  areas of blowing and drifting snow. Visibility will be reduced
  to less than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

http://www.weather.gov/greatfalls
814 
WWUS45 KTFX 202058
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
158 PM MST Wed Dec 20 2017

MTZ011-047-202200-
/O.CAN.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Hill-Blaine-
158 PM MST Wed Dec 20 2017

...WINTER STORM WARNING IS CANCELLED...

Snow is diminishing over the region. Thus the winter storm warning
has been cancelled.

$$

MTZ014-210000-
/O.EXT.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Central and Southern Lewis and Clark-
Including the following locations Helena, Lincoln, 
MacDonald Pass, and Rogers Pass
158 PM MST Wed Dec 20 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of heavy snow will continue through this
  afternoon, especially for areas west of Helena. New snow
  accumulations of 1 to 2 inches possible before 5 PM.

* WHERE...Central and Southern Lewis and Clark.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

MTZ013-051-210000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Chouteau-Fergus-
Including the following locations Fort Benton, Carter, Big Sandy,
Lewistown, Winifred, Lewistown Divide, and Grass Range
158 PM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Periods of snow...heavy at times this afternoon. 
  Additional snow accumulations of 1 to 3 inches are expected.

* WHERE...Chouteau and Fergus.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow, along with reduced
  visibility to less than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

MTZ012-050-054-210000-
/O.CON.KTFX.WS.W.0013.000000T0000Z-171221T0000Z/
Cascade-Judith Basin-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Raynesford, Stanford, Hobson, Martinsdale, 
and White Sulphur Springs
158 PM MST Wed Dec 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Snow...heavy at times through late afternoon for areas
  east of Great Falls. New snow accumulations of 1 to 3 inches
  before 5 PM.

* WHERE...Cascade, Judith Basin and Meagher.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Winds gusting as high as 30 mph will cause
  areas of blowing and drifting snow. Visibility will be reduced
  to less than one half mile at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

MTZ009-010-048-210000-
/O.NEW.KTFX.WW.Y.0052.171221T1200Z-171222T0300Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, Heart Butte, Cut Bank, Bynum, Choteau, and Augusta
158 PM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 8 PM MST
THURSDAY...

* WHAT...Areas of blowing snow expected. Plan on slippery road
  conditions and poor visibility are expected.

* WHERE...Northern Rocky Mountain Front, Eastern Glacier and 
  Southern Rocky Mountain Front.

* WHEN...From 5 AM to 8 PM MST Thursday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow and very poor visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

MTZ008-015-052-053-055-210000-
/O.CON.KTFX.WW.Y.0051.000000T0000Z-171221T0000Z/
Beaverhead-Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Big Hole Pass, Wisdom, Dillon, 
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill, 
Raynolds Pass, Twin Bridges, Virginia City, Montana City, 
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, 
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass, 
Bozeman Pass, and Targhee Pass
158 PM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Snow occurring. Plan on slippery road conditions,
  including during the evening commute. Additional snow
  accumulations of 1 to 2 inches are expected. The snowfall will
  likely be heaviest around Bozeman...where 5 inches have fallen
  as of early this afternoon.

* WHERE...Beaverhead, Madison, Jefferson, Broadwater and 
  Gallatin.

* WHEN...Until 5 PM MST this afternoon.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Listen to NOAA Weather Radio or your local media for the latest
updates on this situation.

$$

http://www.weather.gov/greatfalls
936 
WWUS45 KTFX 202350
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
450 PM MST Wed Dec 20 2017

MTZ013-051-210700-
/O.EXT.KTFX.WS.W.0013.000000T0000Z-171221T0700Z/
Chouteau-Fergus-
Including the following locations Fort Benton, Carter, Big Sandy,
Lewistown, Winifred, Lewistown Divide, and Grass Range
450 PM MST Wed Dec 20 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* WHAT...Light snow and blowing snow occurring. Plan on difficult
  travel conditions, including during the evening commute.
  Additional snow accumulations of 1 to 2 inches are expected.

* WHERE...Chouteau and Fergus.

* WHEN...Until midnight MST tonight.

* ADDITIONAL DETAILS...Winds gusting as high as 25 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ012-050-054-210700-
/O.EXT.KTFX.WS.W.0013.000000T0000Z-171221T0700Z/
Cascade-Judith Basin-Meagher-
Including the following locations Great Falls, Cascade, Belt, 
Kings Hill Pass, Raynesford, Stanford, Hobson, Martinsdale, 
and White Sulphur Springs
450 PM MST Wed Dec 20 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* WHAT...Light snow and blowing snow occurring. Plan on difficult
  travel conditions, including during the evening commute.
  Additional snow accumulations of 1 to 2 inches are expected.

* WHERE...Cascade, Judith Basin and Meagher.

* WHEN...Until midnight MST tonight.

* ADDITIONAL DETAILS...Winds gusting as high as 25 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are occurring. If you must travel, keep
an extra flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ014-210700-
/O.EXT.KTFX.WS.W.0013.000000T0000Z-171221T0700Z/
Central and Southern Lewis and Clark-
Including the following locations Helena, Lincoln, 
MacDonald Pass, and Rogers Pass
450 PM MST Wed Dec 20 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* WHAT...Light snow occurring. Plan on difficult travel 
  conditions, including during the evening commute. Additional 
  snow accumulations of 1 to 2 inches are expected.

* WHERE...Central and Southern Lewis and Clark.

* WHEN...Until midnight MST tonight.

* ADDITIONAL DETAILS...Be prepared for significant reductions in 
  visibility at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

$$

MTZ008-015-052-053-055-210700-
/O.EXT.KTFX.WW.Y.0051.000000T0000Z-171221T0700Z/
Beaverhead-Madison-Jefferson-Broadwater-Gallatin-
Including the following locations Big Hole Pass, Wisdom, Dillon, 
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill, 
Raynolds Pass, Twin Bridges, Virginia City, Montana City, 
Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, Whitehall, 
Toston, Townsend, Bozeman, West Yellowstone, Battle Ridge Pass, 
Bozeman Pass, and Targhee Pass
450 PM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* WHAT...Snow occurring. Plan on slippery road conditions, 
  including during the evening commute. Additional snow 
  accumulations of 1 to 3 inches are expected.

* WHERE...Beaverhead, Madison, Jefferson, Broadwater and 
  Gallatin.

* WHEN...Until midnight MST tonight.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

$$

MTZ009-010-048-210700-
/O.CON.KTFX.WW.Y.0052.171221T1200Z-171222T0300Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, Heart Butte, Cut Bank, Bynum, Choteau, and Augusta
450 PM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 8 PM
MST THURSDAY...

* WHAT...Snow and blowing snow expected. Plan on slippery road 
  conditions, including during the evening commute on Thursday. 
  In addition, areas of poor visibility are expected. Total snow 
  accumulations of up to one inch are expected.

* WHERE...Northern Rocky Mountain Front, Eastern Glacier and 
  Southern Rocky Mountain Front.

* WHEN...From 5 AM to 8 PM MST Thursday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

$$

http://www.weather.gov/greatfalls
368 
WWUS45 KTFX 210336
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
836 PM MST Wed Dec 20 2017

MTZ012>014-050-051-054-210445-
/O.CAN.KTFX.WS.W.0013.000000T0000Z-171221T0700Z/
Cascade-Chouteau-Central and Southern Lewis and Clark-
Judith Basin-Fergus-Meagher-
836 PM MST Wed Dec 20 2017

...WINTER STORM WARNING IS CANCELLED...

Light snow flurries may continue through midnight, but with no new
snow accumulation. Roads remain snow covered and icy.

$$

MTZ008-015-052-053-210445-
/O.CAN.KTFX.WW.Y.0051.000000T0000Z-171221T0700Z/
Beaverhead-Madison-Jefferson-Broadwater-
836 PM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

Light snow flurries may continue through midnight, but with no new
snow accumulation. Roads remain snow covered and icy.

$$

MTZ009-010-048-211200-
/O.CON.KTFX.WW.Y.0052.171221T1200Z-171222T0300Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
Including the following locations Logan Pass, Marias Pass, 
Browning, Heart Butte, Cut Bank, Bynum, Choteau, and Augusta
836 PM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 AM TO 8 PM
MST THURSDAY...

* WHAT...Snow and blowing snow expected. Plan on slippery road 
  conditions, including during the evening commute on Thursday. 
  In addition, areas of poor visibility are expected. Total snow 
  accumulations of up to one inch are expected.

* WHERE...Northern Rocky Mountain Front, Eastern Glacier and 
  Southern Rocky Mountain Front.

* WHEN...From 5 AM to 8 PM MST Thursday.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause primarily travel
difficulties. Be prepared for snow covered roads and limited
visibilities, and use caution while driving. The latest road
conditions for the state you are calling from can be obtained by
calling 5 1 1.

$$

MTZ055-210700-
/O.CON.KTFX.WW.Y.0051.000000T0000Z-171221T0700Z/
Gallatin-
Including the following locations Bozeman, West Yellowstone, 
Battle Ridge Pass, Bozeman Pass, and Targhee Pass
836 PM MST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* WHAT...Light snow occurring. 

* WHERE...Gallatin.

* WHEN...Until midnight MST tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be prepared for snow covered roads and limited visibilities, and 
use caution while driving. The latest road conditions for the 
state you are calling from can be obtained by calling 5 1 1.


$$

http://www.weather.gov/greatfalls

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Great Falls, MT wrote its last area forecast discussion before this winter storm warning went out at Dec 16, 10:15 PM MST, 4 hours 55 minutes earlier.

Area forecast discussion, Dec 16, 10:15 PM MST, 4 hours 55 minutes before
Area Forecast Discussion
National Weather Service Great Falls MT
1015 PM MST Sat Dec 16 2017

...Aviation Section Updated...

.UPDATE...

Made minor tweaks to grids to reflect latest observations. There
are no major changes in the current thinking, with the potential
for patchy fog development especially toward the Bozeman area
which received the most snow. Winds will begin to increase in the
next few hours as low pressure troughing develops along the Rocky
Mountain Front, which mean most locations in this area are already
at or near their forecast lows and will slowly rise through the
night. CC

&&

.SYNOPSIS...

High pressure will build in from the west tonight for clearing
skies and seasonably cold temperatures. Some patchy fog is
possible in valley locations tonight as skies clear. Dry
conditions on Sunday will give way to increasing winds and cloud-
cover Sunday night. Several weather systems will move across the
region next week for progressively colder conditions along with a
a chance for snow.

&&

.AVIATION...
Updated 0515Z.

IFR/LIFR conditions mainly due to fog and mist will be possible
across portions of Southwest and Central Montana into the early
morning hours today, before drier air and mixing within the boundary
layer disperse the moisture. The KBZN and KLWT terminals are most at
risk of observing these IFR/LIFR conditions. Elsewhere across the
remainder of Southwest and North Central Montana, MVFR and VFR
conditions are expected. Some mountain obscuration is possible
through the morning hours across Southwest and Central Montana.
Breezy to gusty winds are expected during the afternoon hours on
Sunday across the plains of North Central Montana and along the
Rocky Mountain Front. Frequent wind gusts in excess of 25kts are
expected for the KCTB, KHVR, and KGTF terminals Sunday afternoon and
into the evening hours. - Moldan

&&

.PREV DISCUSSION...
/ISSUED 425 PM MST Sat Dec 16 2017/

Trough axis extending from western Canada south into the Great
Basin will shift east across the forecast area late this afternoon
while splitting. Drier air moves in relatively quickly this
evening from the west as an upper level ridge moves onto the coast
for clearing skies from west to east across the forecast area
while any lingering snow across SE portions of the forecast area
ends early this evening. This may set the stage for patchy fog
across portions of central and SW MT with SW MT valleys more
likely to see the fog development later this evening as winds
will be relatively light and precipitation has only recently
ended, leading to relatively high surface moisture. Further north
across central and eastern portions of north central MT, there
will be a window of opportunity for patchy fog development early
this evening as skies clear but before winds increase in response
to lee-side surface troughing developing in Alberta. The upper
level ridge axis shifts east across the Northern Rockies and MT
Sunday for generally dry conditions with surface winds increasing
across north central MT as winds aloft increase along with a
strengthening lee-side trough at the surface. The ridge flattens
Sunday night and Monday as a larger scale trough moves into
western Canada with upper level jet sagging south to along the
US/Canadian border by Monday afternoon. Winds continue to
increase Sunday night through Monday morning with greatest
potential for strong winds along the east slopes of the Rockies.
Previously mentioned upper jet will also stream moisture in from
the Pacific for orographically enhanced precipitation along the
continental divide sunday night into Monday. An E-W frontal
boundary is likely to set up initially along the northern border
early Monday which then sags south through central MT Monday
afternoon, providing a focus for additional precipitation across
central and north-central portions of the forecast area. There is
some potential for strong winds to spread east into central MT
Monday morning but confidence remains low as surface winds will
also be shifting to NW as the frontal boundary sags south.
Hoenisch

Monday night through Saturday...Monday's front will sink south
during the evening hours, then stall near or just south of Great
Falls. This should allow the stronger winds from Monday to begin to
decrease areawide, with precip mainly confined to SW MT. On Tuesday,
a fast-moving, but strong, upper level system will move into the Pac
NW which will push the stalled front back north as a warm front. As
the upper level system nears, lee-side surface low development is
expected near Cut Bank. This low will then quickly shift east
through Wednesday, allowing a cold front to surge south across the
area at the same time. This system will likely bring a widespread
light snowfall to much of the area. However, lift will be maximized
along and north of the surface low track, with higher amounts
expected in that area. The models differ some on the exact track of
this low, but at this time, the heaviest snowfall amounts and
greatest impacts look to be along the Rocky Mtn Front and east
across the Hi-line. The rapidly strengthening surface low should
allow a period of gusty winds over the plains, which may add to the
impacts due to the potential of blowing snow. Stay tuned for
continued updates on expected impacts with this winter system.

Beyond mid-week, the models continue to suggest the development of a
broad upper level trough over the central US, which would favor
continued colder conditions. How cold remains to be seen, but the
potential exists for some of the coldest air of the season,
especially with a fresh snowpack likely across much of the area. The
cold air will likely be accompanied by periods of light snow. MARTIN

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  23  40  35  44 /  10  10   0  30
CTB  20  40  29  38 /   0  10   0  40
HLN  13  31  27  42 /  10  10  10  30
BZN   6  25  20  38 /  30  10  10  30
WEY  -3  18  10  24 /  20  10  30  50
DLN   8  28  22  38 /  10  10  10  20
HVR  18  41  29  39 /  10  10   0  40
LWT  16  37  30  40 /  20   0  10  50

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
None.
&&

http://www.weather.gov/greatfalls

The office that day

Everything else NWS Great Falls, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 17, 2:37 PM MSTHigh Wind WarningTFX20 hr
Dec 17, 2:57 PM MSTWinter Storm WatchTFX23 hr

Nearby

Winter Storm Warnings in Montana, 2017Every winter storm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.