Winter Storm Warning 8, NWS Great Falls, MT

755 
WWUS45 KTFX 150915
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
315 AM MDT Fri Sep 15 2017

...Impactful Snow Expected in the Mountains through Saturday
morning...

A wet and cold storm system will bring a significant change in
the weather to central and Southwest Montana, including high
elevation snow. The greatest impacts are expected in the
mountains, with impacts enhanced due to weather conditions during
this event being much different than antecedent conditions.

MTZ012-014-048-050-052>054-152115-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Cascade-Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-Judith Basin-Jefferson-Broadwater-
Meagher-
315 AM MDT Fri Sep 15 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT SATURDAY
FOR ELEVATIONS ABOVE 5500 FEET...

* Locations: All high elevation locations above 5500 feet,
  including Kings Hill Pass, Flesher Pass, MacDonald Pass, 
  Boulder Hill, Elk Park Pass, and Homestake Pass.

* Timing: Through Saturday morning.

* Accumulations: Total snow accumulation of 3 to 6 inches at pass
  level, with higher amounts of 5 to 10 inches above pass level.

* Winds: North 5 to 15 mph with gusts up to 35 mph.

* Visibilities: Reduced to a half-mile or less at times.

* Snow Level: Lowering to 5000 feet. 

* Impacts: Slushy snow accumulations will cause travel
  difficulties over mountain passes, especially tonight and again
  Friday night. Wet and raw conditions will cause hypothermia
  issues for anyone caught unprepared in the backcountry. In
  addition, the wet and snowy conditions will make operations
  difficult for fire personnel.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ008-015-055-152115-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Beaverhead-Madison-Gallatin-
315 AM MDT Fri Sep 15 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT SATURDAY
FOR ELEVATIONS ABOVE 6500 FEET...

* Locations: All high elevation locations above 6500 feet,
  including Raynolds Pass, Chief Joseph Pass, Big Hole Pass,
  and Monida Pass.

* Timing: Rain will continue to change to snow through this
  morning as snow levels lower to around 6500 feet. Snowfall rates
  will peak today. Mountain snow will gradually end from west to 
  east on Saturday.

* Accumulations: Total snow accumulation of 3 to 6 inches at pass
  level, with amounts of 6 to 12 inches above pass level.

* Winds: North 5 to 15 mph with gusts up to 30 mph.

* Visibilities: Reduced to one-half mile or less at times.

* Snow Level: Lowering to 6500 feet.

* Impacts: Slushy snow accumulations will cause travel
  difficulties over mountain passes, especially tonight and again
  Friday night. Wet and raw conditions will cause hypothermia
  issues for anyone caught unprepared in the backcountry. In
  addition, the wet and snowy conditions will make operations
  difficult for fire personnel.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ009-152115-
/O.CON.KTFX.WW.Y.0035.000000T0000Z-170916T1800Z/
Northern Rocky Mountain Front-
315 AM MDT Fri Sep 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SATURDAY FOR ELEVATIONS ABOVE 6000 FEET...

* Locations: All high elevation locations in and around Glacier
  National Park above 6000 feet, including Marias and Logan
  Passes.

* Timing: Mountain snow will continue through today, gradually
  ending from north to south tonight.

* Accumulations: Total snow accumulation of 1 to 3 inches at pass
  level.

* Winds: Northeast 10 to 15 mph with gusts up to 25 mph.

* Snow Level: 6000 feet.

* Impacts: Slushy snow accumulations may cause minor travel
  difficulties over mountain passes, especially tonight through Friday.
  Wet and raw conditions will cause hypothermia issues for anyone
  caught unprepared in the backcountry. In addition, the wet and 
  snowy conditions will make operations more difficult for fire 
  personnel.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause generally minor impacts due to snow. Use caution while
driving.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

571 
WWUS45 KTFX 151718
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1118 AM MDT Fri Sep 15 2017

...Periods of Snow will Continue to Impact the Higher Elevations
through Saturday...

MTZ012-014-048-050-052>054-161100-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Cascade-Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-Judith Basin-Jefferson-Broadwater-
Meagher-
1118 AM MDT Fri Sep 15 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT SATURDAY
FOR ELEVATIONS ABOVE 5500 FEET...

* Locations: All high elevation locations above 5500 feet,
  including Kings Hill Pass, Flesher Pass, MacDonald Pass, 
  Rogers Pass, Boulder Hill, Elk Park Pass, and Homestake Pass.

* Timing: Periods of light to moderate snow will continue through
  Saturday morning. A brief period of heavy snow will be possible
  through this afternoon. The rain may mix with or change to snow
  down to around 4000 feet at times.

* Accumulations: Additional accumulations of 2 to 5 inches at pass
  level, with an additional 5 to 10 inches above pass level. A
  slushy inch or two is expected for some locations around 4500
  feet.

* Winds: North 5 to 15 mph with gusts up to 25 mph.

* Visibilities: As low as a half a mile at times in falling snow.

* Impacts: Slushy snow accumulations will cause travel
  difficulties over mountain passes, with the greatest impacts
  expected tonight through Saturday morning as temperatures and
  road surfaces cool. Wet and raw conditions will cause
  hypothermia issues for anyone caught unprepared in the
  backcountry. In addition, the wet and snowy conditions will make
  operations difficult for fire personnel. The weight of the heavy
  snow could bring some large branches or trees down. These
  conditions will put added stress on young livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MARTIN

MTZ008-015-055-161100-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Beaverhead-Madison-Gallatin-
1118 AM MDT Fri Sep 15 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT SATURDAY
FOR ELEVATIONS ABOVE 6500 FEET...

* Locations: All high elevation locations above 6500 feet,
  including Raynolds Pass, Chief Joseph Pass, Big Hole Pass,
  and Monida Pass.

* Timing: Rain has changed to snow for most high elevation
  locations in Southwest Montana. Periods of light to moderate
  snow will continue through Saturday morning before tapering off
  by Saturday afternoon. A period of heavy snow is possible later
  this afternoon through tonight.

* Accumulations: An additional 1 to 4 inches at pass level, with
  additional amounts of 5 to 10 inches above pass level.

* Winds: North 5 to 15 mph with gusts up to 25 mph.

* Visibilities: As low as a half a mile at times in falling snow.

* Impacts: Slushy snow accumulations will cause travel
  difficulties over mountain passes, with the greatest impacts
  expected tonight through Saturday morning as temperatures and
  road surfaces cool. Wet and raw conditions will cause
  hypothermia issues for anyone caught unprepared in the
  backcountry. In addition, the wet and snowy conditions will make
  operations difficult for fire personnel. The weight of the heavy
  snow could bring some large branches or trees down. These
  conditions will put added stress on young livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MARTIN

MTZ009-161100-
/O.CON.KTFX.WW.Y.0035.000000T0000Z-170916T1800Z/
Northern Rocky Mountain Front-
1118 AM MDT Fri Sep 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SATURDAY FOR ELEVATIONS ABOVE 6000 FEET...

* Locations: All high elevation locations in and around Glacier
  National Park above 6000 feet, including Marias and Logan
  Passes.

* Timing: Periods of primarily light snow will continue through
  late this afternoon, gradually ending from north to south 
  tonight.

* Accumulations: An additional 1 to 2 inches at pass level, with
  amounts of 3 to 6 inches above pass level. A dusting of snow is
  possible below pass level

* Winds: Northeast 10 to 15 mph with gusts up to 20 mph.

* Impacts: Slushy snow accumulations will cause minor travel
  difficulties over mountain passes, especially tonight through
  Friday. Wet and raw conditions will cause hypothermia issues for
  anyone caught unprepared in the backcountry. In addition, the
  wet and snowy conditions will make operations more difficult for
  fire personnel. These conditions will put added stress on young
  livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause generally minor impacts due to snow. Use caution while
driving.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MARTIN

762 
WWUS45 KTFX 160006
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
606 PM MDT Fri Sep 15 2017

...Periods of Snow will Continue to Impact the Higher Elevations
through Saturday...

MTZ008-015-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Beaverhead-Madison-
606 PM MDT Fri Sep 15 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT
SATURDAY... 

* Locations: All of Beaverhead and Madison Counties, including
  Dillon and Ennis.

* Timing: Periods of light to moderate snow will continue through
  Saturday morning before tapering off Saturday afternoon. A
  period of heavy snow is possible overnight.

* Accumulations: 1 to 4 inches at lower elevations, 5 to 10 inches
  in the mountains.

* Winds: North 5 to 15 mph with gusts up to 25 mph.

* Visibilities: As low as a half a mile at times in falling snow.

* Impacts: Slushy snow accumulations will cause travel  
  difficulties, with the greatest impacts expected tonight through
  Saturday morning as temperatures and road surfaces cool. Wet 
  and raw conditions will cause hypothermia issues for anyone 
  caught unprepared in the backcountry. In addition, the wet and 
  snowy conditions will make operations difficult for fire 
  personnel. The weight of the heavy snow could bring some large 
  branches or trees down. These conditions will put added stress 
  on young livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ012-014-048-050-052>054-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Cascade-Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-Judith Basin-Jefferson-Broadwater-
Meagher-
606 PM MDT Fri Sep 15 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT SATURDAY
FOR ELEVATIONS ABOVE 5500 FEET...

* Locations: All high elevation locations above 5500 feet,
  including Kings Hill Pass, Flesher Pass, MacDonald Pass, 
  Rogers Pass, Boulder Hill, Elk Park Pass, and Homestake Pass.

* Timing: Periods of light to moderate snow will continue through
  Saturday morning. The rain may mix with or change to snow down 
  to around 4000 feet at times.

* Accumulations: 2 to 5 inches at pass level, with 5 to 10 
  inches above pass level. A slushy inch or two is expected for 
  some locations around 4500 feet.

* Winds: North 5 to 15 mph with gusts up to 25 mph.

* Visibilities: As low as a half a mile at times in falling snow.

* Impacts: Slushy snow accumulations will cause travel  
  difficulties over mountain passes, with the greatest impacts 
  expected tonight through Saturday morning as temperatures and 
  road surfaces cool. Wet and raw conditions will cause 
  hypothermia issues for anyone caught unprepared in the 
  backcountry. In addition, the wet and snowy conditions will make
  operations difficult for fire personnel. The weight of the 
  heavy snow could bring some large branches or trees down. These 
  conditions will put added stress on young livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ055-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Gallatin-
606 PM MDT Fri Sep 15 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT SATURDAY
FOR ELEVATIONS ABOVE 6500 FEET...

* Locations: All high elevation locations above 6500 feet.

* Timing: Periods of light to moderate snow will continue through
  Saturday morning before tapering off Saturday afternoon. A
  period of heavy snow is possible overnight.

* Accumulations: 1 to 4 inches at pass level, with additional  
  amounts of 5 to 10 inches above pass level.

* Winds: North 5 to 15 mph with gusts up to 25 mph.

* Visibilities: As low as a half a mile at times in falling snow.

* Impacts: Slushy snow accumulations will cause travel
  difficulties over mountain passes, with the greatest impacts
  expected tonight through Saturday morning as temperatures and
  road surfaces cool. Wet and raw conditions will cause
  hypothermia issues for anyone caught unprepared in the
  backcountry. In addition, the wet and snowy conditions will make
  operations difficult for fire personnel. The weight of the heavy
  snow could bring some large branches or trees down. These
  conditions will put added stress on young livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ009-161800-
/O.CON.KTFX.WW.Y.0035.000000T0000Z-170916T1800Z/
Northern Rocky Mountain Front-
606 PM MDT Fri Sep 15 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT
SATURDAY FOR ELEVATIONS ABOVE 6000 FEET...

* Locations: All high elevation locations in and around Glacier
  National Park above 6000 feet, including Marias and Logan
  Passes.

* Timing: Periods of primarily light snow will continue through
  this evening, gradually ending from north to south overnight.

* Accumulations: 1 to 2 inches at pass level, with amounts of 3 
  to 6 inches above pass level. A dusting of snow is possible 
  below pass level

* Winds: Northeast 10 to 15 mph with gusts up to 20 mph.

* Impacts: Slushy snow accumulations will cause minor travel
  difficulties over mountain passes. Wet and raw conditions will 
  cause hypothermia issues for anyone caught unprepared in the 
  backcountry. In addition, the wet and snowy conditions will make
  operations more difficult for fire personnel. These conditions 
  will put added stress on young livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause generally minor impacts due to snow. Use caution while
driving.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

550 
WWUS45 KTFX 160929
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
329 AM MDT Sat Sep 16 2017

...Periods of Snow will Continue to Impact the Higher Elevations
through Saturday...

MTZ008-015-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Beaverhead-Madison-
329 AM MDT Sat Sep 16 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* Locations: All of Beaverhead and Madison Counties, including
  Dillon and Ennis.

* Timing: Periods of light to moderate snow will continue through
  this morning before tapering off Saturday afternoon. 

* Accumulations: Total snow accumulations 1 to 4 inches at lower
  elevations, 5 to 10 inches in the mountains. 

* Winds: North 5 to 10 mph with gusts up to 20 mph.

* Visibilities: One mile or less at times.

* Impacts: Slushy snow accumulations will cause travel
  difficulties, with the greatest impacts expected tonight through
  this morning as temperatures and road surfaces cool. Wet and 
  raw conditions will cause hypothermia issues for anyone caught 
  unprepared in the backcountry. In addition, the wet and snowy 
  conditions will make operations difficult for fire personnel. 
  The weight of the heavy snow could bring some large branches or 
  trees down. These conditions will put added stress on young 
  livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ012-014-048-050-052>054-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Cascade-Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-Judith Basin-Jefferson-Broadwater-
Meagher-
329 AM MDT Sat Sep 16 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY
FOR ELEVATIONS ABOVE 5500 FEET...

* Locations: All high elevation locations above 5500 feet,
  including Kings Hill Pass, Flesher Pass, MacDonald Pass, 
  Rogers Pass, Boulder Hill, Elk Park Pass, and Homestake Pass.

* Timing: Periods of light to moderate snow will continue through
  this morning. The rain may mix with or change to snow down to 
  around 4000 feet at times.

* Accumulations: Total Snow accumulation of 2 to 5 inches, with 5
  to 10 inches above pass level. A slushy inch or two is expected
  for some locations around 4500 feet.

* Winds: North 10 to 15 mph with gusts up to 25 mph.

* Visibilities: As low as one-half mile at times in falling snow.

* Impacts: Slushy snow accumulations will cause travel
  difficulties over mountain passes, with the greatest impacts
  expected tonight through this morning as temperatures and road 
  surfaces cool. Wet and raw conditions will cause hypothermia 
  issues for anyone caught unprepared in the backcountry. In 
  addition, the wet and snowy conditions will make operations 
  difficult for fire personnel. The weight of the heavy snow could
  bring some large branches or trees down. These conditions will 
  put added stress on young livestock.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ055-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Gallatin-
329 AM MDT Sat Sep 16 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY
FOR ELEVATIONS ABOVE 6500 FEET...

* Locations: All high elevation locations above 6500 feet.

* Timing: Periods of light to moderate snow will continue through
  this morning before tapering off this afternoon. 

* Accumulations: Total Snow accumulation of 2 to 4 inches at pass
  level, with additional amounts of 5 to 10 inches above pass
  level.

* Winds: Northwest 5 to 10 mph with gusts up to 20 mph.

* Visibilities: As low as one-half mile at times in falling snow.

* Impacts: Slushy snow accumulations will cause travel
  difficulties over mountain passes, with the greatest impacts
  expected tonight through this morning as temperatures and road 
  surfaces cool. Wet and raw conditions will cause hypothermia 
  issues for anyone caught unprepared in the backcountry. In 
  addition, the wet and snowy conditions will make operations 
  difficult for fire personnel. The weight of the heavy snow could
  bring some large branches or trees down. These conditions will 
  put added stress on young livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ009-161800-
/O.CON.KTFX.WW.Y.0035.000000T0000Z-170916T1800Z/
Northern Rocky Mountain Front-
329 AM MDT Sat Sep 16 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY
FOR ELEVATIONS ABOVE 6000 FEET...

* Locations: All high elevation locations in and around Glacier
  National Park above 6000 feet, including Marias and Logan
  Passes.

* Timing: Periods of primarily light snow will continue through 
  this evening, gradually ending from north to south overnight.

* Accumulations: 3 to 6 inches at and above pass level, with a
  dusting to 2 inches between 5000 and 6000 feet.

* Winds: South 5 mph or less.

* Impacts: Slushy snow accumulations will cause minor travel
  difficulties over mountain passes. Wet and raw conditions will 
  cause hypothermia issues for anyone caught unprepared in the 
  backcountry. In addition, the wet and snowy conditions will make
  operations more difficult for fire personnel. These conditions 
  will put added stress on young livestock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause generally minor impacts due to snow. Use caution while
driving.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

540 
WWUS45 KTFX 161254
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
654 AM MDT Sat Sep 16 2017

...Periods of Snow will Continue to Impact the Higher Elevations
through Saturday...

MTZ009-161400-
/O.CAN.KTFX.WW.Y.0035.000000T0000Z-170916T1800Z/
Northern Rocky Mountain Front-
654 AM MDT Sat Sep 16 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

The National Weather Service in Great Falls has cancelled the
Winter Weather Advisory.

Snow is gradually coming to an end. Thus the winter weather
advisory has been cancelled.

$$

MTZ008-015-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Beaverhead-Madison-
654 AM MDT Sat Sep 16 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* Locations: All of Beaverhead and Madison counties...including
  Dillon and Ennis.

* Timing: Periods of light to moderate snow will continue through
  this morning before tapering off this afternoon.

* Accumulations: New snow accumulations today of 2 to 4 inches.

* Visibilities: Visibility will be reduced to less than one mile
  at times.

* Impacts: Some roadways will be snow covered and slippery. Power
  outages and minor tree damage is possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ012-014-048-050-052>054-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Cascade-Central and Southern Lewis and Clark-
Southern Rocky Mountain Front-Judith Basin-Jefferson-Broadwater-
Meagher-
654 AM MDT Sat Sep 16 2017

...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL NOON MDT TODAY FOR ELEVATIONS ABOVE 5500 FEET...

* Locations: For elevations above 5500 feet, including Kings Hill
  Pass, Flesher Pass, MacDonald Pass, Rogers Pass, Boulder Hill, 
  Elk Park Pass, and Homestake Pass.

* Timing: Periods of light to moderate snow will continue through
  this morning before tapering off this afternoon.

* Accumulations: New snow accumulations today of 2 to 4 inches.

* Visibilities: Visibility will be reduced to less than one mile
  at times.

* Impacts: Some roadways will be snow covered and slippery. Power
  outages and minor tree damage is possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

MTZ055-161800-
/O.CON.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Gallatin-
654 AM MDT Sat Sep 16 2017

...WINTER STORM WARNING REMAINS IN EFFECT
UNTIL NOON MDT TODAY FOR ELEVATIONS ABOVE 6500 FEET...

* Locations: For elevations above 6500 feet.

* Timing: Periods of light to moderate snow will continue through
  this morning before tapering off this afternoon.

* Accumulations: New snow accumulations today of 2 to 4 inches.

* Visibilities: Visibility will be reduced to less than one mile
  at times.

* Impacts: Some roadways will be snow covered and slippery. Power
  outages and minor tree damage is possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means significant winter weather
impacts are expected or occurring. Significant amounts of snow
are forecast that will make travel difficult at times as well as
potentially dangerous conditions for those in the backcountry.

For specific road and travel conditions in Montana, dial 5 1 1 .

&&

$$

933 
WWUS45 KTFX 161451
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
851 AM MDT Sat Sep 16 2017

MTZ008-012-014-015-048-050-052>055-161600-
/O.CAN.KTFX.WS.W.0008.000000T0000Z-170916T1800Z/
Beaverhead-Cascade-Central and Southern Lewis and Clark-Madison-
Southern Rocky Mountain Front-Judith Basin-Jefferson-Broadwater-
Meagher-Gallatin-
851 AM MDT Sat Sep 16 2017

...WINTER STORM WARNING IS CANCELLED...

The National Weather Service in Great Falls has cancelled the
Winter Storm Warning.

The snow is beginning to diminish over the region...and road
conditions are improving. Thus the winter storm warning has been
cancelled.

$$

Area Forecast Discussion
National Weather Service Great Falls MT
535 AM MDT Thu Sep 14 2017

Aviation Section Updated.

.SYNOPSIS...

Widespread rain and mountain snow develops today, and continues
into Saturday. An overall cooling trend is expected through the
end of the week.

&&

.DISCUSSION...

Today through Saturday...As expected, welcome rain has begun to
spread across the forecast area. Temperatures have fallen into the
40s to low 50s at lower elevations, with lower 30s already being
reported at a few higher elevation stations over the northern
Rockies. Model consensus supports a band of rain across central
Montana to continue this morning, gradually shifting south.
Satellite imagery and surface observations indicate widespread low
clouds now spread across North-central MT, where temperatures will
record little change. Expect precipitation to develop along and
east of the Continental divide later this morning, spreading from
north to south. Snow levels will continue to lower, and expect to
see rain changing to snow later this afternoon at elevations above
around 6000 feet. While this initial round of rain has been
produced along the advancing surface front, precipitation will
become more widespread and more intense tonight as the upper level
trough moves closer to, and deepens over southwest Montana.
Rainfall totals along the Hi-line might now struggle to reach one-
quarter inch as the primary forcing has shifted south compared to
earlier forecasts. Rainfall amounts increase substantially
further south, with 1-2 inches of precipitation in the forecast
south of a line from around Conrad to Great Falls to Lewistown.
The winter weather advisory remains in effect tonight through
early Saturday. Some adjustments to the advisory may be needed
later today. First, there are hints that the system has turned
colder, which may lower snow levels and bring accumulating snow
onto mountain passes overnight tonight. With this in mind, will
continue to coordinate with neighboring NWS offices regarding a
possible decision to upgrade portions of the advisory to a winter
storm warning given the high numbers of people working, hunting,
and recreating in the backcountry. Rain and mountain snow will
continue for most areas today, tonight and Friday, before
gradually tapering from northwest to southeast on Saturday. PN

Saturday night through Wednesday...Showers will be diminishing on
Saturday night with a nice day expected on Sunday. By Monday
afternoon...the next upper level disturbance will be approaching the
region...allowing for another round of rain/snow showers to move
through the region from Monday afternoon through Tuesday. For next
Wed/Thu the EC continues to prog an area of low pressure moving
northward through far eastern Montana. This would result in moderate
to heavy precipitation over portions of the region once again.
However...the GFS is not as strong with this feature...and has much
lower precipitation amounts. Thus I used a blend for next
Wed/Thu...but confidence is low in that forecast at this time.
Brusda

&&

.AVIATION...
Updated 1135Z.

A band of rain has developed across North-central MT. Widespread
low clouds are producing a range of MVFR/IFR/LIFR conditions at
area terminals. Low clouds will persist through the period, while
precipitation becomes more widespread. Expect mountain obscuration
and low-level in-cloud icing as temperatures trend colder. VFR
conditions will prevail this morning for KBZN/KEKS in southwest
Montana before deteriorating through the afternoon hours. PN

&&

.FIRE WEATHER...
Rain and mountain snow is expected over much of the region today
through Saturday. Higher humidities and colder temperatures should
also aid in lowering the fire danger across the region for the next
few days. Brusda

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  46  39  43  35 /  90 100 100  90
CTB  44  39  47  34 /  90  80  60  50
HLN  52  40  46  39 / 100 100 100 100
BZN  54  43  48  35 /  90 100 100  80
WEY  60  39  46  31 /  80  90  80  50
DLN  57  40  47  32 /  90 100 100 100
HVR  51  42  51  39 /  70  60  50  40
LWT  48  40  43  34 /  90 100 100  80

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory from 6 PM this evening to noon MDT
Saturday above 6000 feet for Broadwater...Cascade...Central and
Southern Lewis and Clark...Jefferson...Judith Basin...Meagher...
Northern Rocky Mountain Front...Southern Rocky Mountain Front.

Winter Weather Advisory from 3 AM Friday to noon MDT Saturday
above 7000 feet for Beaverhead...Gallatin...Madison.

&&

weather.gov/greatfalls