Alert archive / Montana / Winter Weather Advisories in 2017

Winter Weather Advisory 21, NWS Great Falls, MT

March 4, 2017

NWS Great Falls, MT issued this winter weather advisory at Mar 4, 2017, 2:32 PM MST. It took effect at Mar 4, 2017, 6:00 PM MST. It was in force for 27 hr.

The area

The counties it named.

The facts

Issued
Mar 4, 2017, 2:32 PM MST (21:32 UTC)
In effect from
Mar 4, 2017, 6:00 PM MST
Expired
Mar 5, 2017, 8:49 PM MST
In force
27 hr
Issued by
NWS Great Falls, MT

The text

As transmitted.

202 
WWUS45 KTFX 042132
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
232 PM MST Sat Mar 4 2017


MTZ009-010-051200-
/O.NEW.KTFX.WW.Y.0021.170305T0100Z-170306T0100Z/
Northern Rocky Mountain Front-Eastern Glacier-
232 PM MST Sat Mar 4 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
6 PM MST SUNDAY...

The National Weather Service in Great Falls has issued a Winter
Weather Advisory for snow, which is in effect from 6 PM this 
evening to 6 PM MST Sunday.

* Locations: Marias Pass, Browning, and Cut Bank.

* Timing/Impacts: Roads will become wet and slushy, then icy and
  snow covered as snow develops tonight. A cold front will bring
  colder temperatures. Periods of snow continue through Sunday.

* Snow Accumulations: Will range from around 2 inches near Cut
  Bank, increasing to the west with 2 to 4 inches along and west
  of Highway 89, and 4 to 6 inches on Highway 2 at Marias Pass.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$
8 follow-up statements
390 
WWUS45 KTFX 050415
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
915 PM MST Sat Mar 4 2017

MTZ009-010-051200-
/O.CON.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
Northern Rocky Mountain Front-Eastern Glacier-
915 PM MST Sat Mar 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST
SUNDAY...

* Locations: Cut Bank, Browning, Logan Pass, and Marias Pass.

* Timing/Impacts: Roads will become wet and slushy, then icy and
  snow covered as snow develops around or shortly after midnight
  tonight. A cold front will also bring colder temperatures.
  Periods of snow will then continue through Sunday.

* Snow Accumulations: Will range from around 2 to 3 inches near 
  Cut Bank, increasing to the west with 2 to 4 inches along and 
  west of Highway 89, and 4 to 6 inches on Highway 2 at Marias 
  Pass.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$
759 
WWUS45 KTFX 051052
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
352 AM MST Sun Mar 5 2017

MTZ044-046-048-049-060100-
/O.EXA.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
Toole-Eastern Pondera-Southern Rocky Mountain Front-Eastern Teton-
352 AM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MST THIS
EVENING...

The National Weather Service in Great Falls has issued a Winter
Weather Advisory for snow, which is in effect until 6 PM MST this
evening.

* Locations: Shelby, Conrad, and Choteau.

* Timing/Impacts: Periods of moderate to heavy snow through today
  will likely keep roads at least slushy or icy along the Rocky
  Mountain Front and out onto the adjacent plains. Heavier snow
  could cause roads to become snow covered, and will also reduce
  visibility. Snow will start to decrease later this afternoon.

* Accumulations: An additional 1 to 2 inches over the plains...
  and an additional 2 to 4 inches in the mountains.

* Visibilities: Less than 1 mile at times.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ009-010-060100-
/O.CON.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
Northern Rocky Mountain Front-Eastern Glacier-
352 AM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* Locations: Browning, Logan Pass, Marias Pass, and Cut Bank.

* Timing/Impacts: Periods of moderate to heavy snow through today
  will likely keep roads at least slushy or icy along the Rocky
  Mountain Front and out onto the adjacent plains. Heavier snow
  could cause roads to become snow covered, and will also reduce
  visibility. Snow will start to decrease later this afternoon.

* Snow Accumulations: An additional 1 to 2 inches over the
  plains...and an additional 3 to 5 inches in the
  mountains...including over Marias Pass.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$
835 
WWUS45 KTFX 051722
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1022 AM MST Sun Mar 5 2017


MTZ009-010-051830-
/O.CAN.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
Northern Rocky Mountain Front-Eastern Glacier-
1022 AM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

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



$$

MTZ008-011>013-015-047-050-051-054-055-060530-
/O.EXB.KTFX.WW.Y.0021.170306T0000Z-170306T0900Z/
Beaverhead-Hill-Cascade-Chouteau-Madison-Blaine-Judith Basin-
Fergus-Meagher-Gallatin-
1022 AM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
2 AM MST MONDAY...

The National Weather Service in Great Falls has issued a Winter
Weather Advisory for Snow, which is in effect from 5 PM this 
afternoon to 2 AM MST Monday.

* Locations: Big Hole Pass, Chief Joseph Pass, Dillon, Monida 
  Pass, Havre, Great Falls, Kings Hill Pass, Big Sandy, Fort 
  Benton, Ennis, Norris Hill, Raynolds Pass, Twin Bridges, 
  Chinook, Stanford, Lewistown, Lewistown Divide, White Sulphur 
  Springs, Battle Ridge Pass, Bozeman, Bozeman Pass, Targhee 
  Pass, and West Yellowstone.

* Timing: Late this afternoon through late tonight.

* Impacts: Slushy, icy, and snow-covered roads. Heavier snow could
  reduce visibility below one mile at times.

* Accumulations: Snow accumulation up to 3 inches over the Plains,
  with 3 to 6 inches expected over Southwest Montana, especially
  toward the passes and higher elevations.

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

* Snow Level: 3000 feet lowering to the plains. 

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ014-060100-
/O.EXA.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
Central and Southern Lewis and Clark-
1022 AM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MST THIS
EVENING...

The National Weather Service in Great Falls has issued a Winter
Weather Advisory for Snow, which is in effect until 6 PM MST this
evening.

* Locations: Mainly along and west of the Continental Divide.

* Timing: Through this afternoon.

* Timing/Impacts: Moderate snow will continue into the afternoon
  before tapering off by early evening.

* Accumulations: Snow accumulation of 2 to 4 inches.

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

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

* Impacts: Roads will become snow covered.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ044-046-048-049-060100-
/O.CON.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
Toole-Eastern Pondera-Southern Rocky Mountain Front-Eastern Teton-
1022 AM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

* Locations: Choteau, Shelby, and Conrad.

* Timing/Impacts: Snow will slowly taper off through this
  afternoon from Toole County south through eastern Pondera and
  Teton Counties, including Interstate 15, with additional minor 
  accumulations.

* Accumulations: Snow accumulation of 1 to 4 inches.

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

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$
802 
WWUS45 KTFX 051937
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1237 PM MST Sun Mar 5 2017


MTZ049-060600-
/O.CAN.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
/O.NEW.KTFX.WW.Y.0022.170305T2100Z-170306T0600Z/
Eastern Teton-
1237 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST THIS
EVENING...

The National Weather Service in Great Falls has issued a Winter
Weather Advisory for Snow, which is in effect until 11 PM MST 
this evening.

* Locations: Eastern Teton County.

* Timing: This afternoon.

* Timing/Impacts: Slick driving conditions will develop as an 
intense band of snow moving across the Divide moves onto the 
Plains. The snow will move south and east of the area by early 
evening.

* Accumulations: Snow accumulation of up to 1 inch.

* Winds: Northwest 5 to 10 mph.

* Visibilities: Reduced to one mile at times in snow.

* Impacts: The snowfall will create slippery and snow covered 
  roadways.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ044-046-048-052045-
/O.CAN.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
Toole-Eastern Pondera-Southern Rocky Mountain Front-
1237 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

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

Snow has diminished, with only flurries or isolated snow showers
expected through the remainder of the afternoon.

$$

MTZ014-060600-
/O.UPG.KTFX.WW.Y.0021.000000T0000Z-170306T0100Z/
/O.NEW.KTFX.WS.W.0004.170305T1937Z-170306T0000Z/
/O.NEW.KTFX.WW.Y.0022.170305T2100Z-170306T0600Z/
Central and Southern Lewis and Clark-
1237 PM MST Sun Mar 5 2017

...WINTER STORM WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON
WEST OF THE DIVIDE... 
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST THIS 
EVENING EAST OF THE DIVIDE...

The National Weather Service in Great Falls has issued a Winter
Storm Warning for Heavy Snow, which is in effect until 5 PM MST 
this afternoon west of the Divide. A Winter Weather Advisory has 
also been issued. This Winter Weather Advisory for Snow is in 
effect until 11 PM MST this evening for the remainder of the
central and southern Lewis and Clark County.

* Locations: Flesher Pass, Helena, Lincoln, MacDonald Pass, and 
  Rogers Pass.

* Timing/Impacts: Heavy snow will continue through the afternoon
  west of the Divide, including Lincoln. Light to occasionally
  moderate snow will fall mainly across the remainder of Lewis and
  Clark County, including Rogers and MacDonald Pass. 

* Accumulations: Snow accumulation of 1 to 3 inches, except an
  additional 3 to 5 inches west of the Divide.

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

* Visibilities: Reduced to one-quarter mile at times in heavy snow
  west of the Divide, and to one mile or less at times to the east
  of the Divide this evening.

* Impacts: The heavy snow will create snow covered roads and 
  produce scattered power outages. 

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast that will make travel dangerous. Only travel in an 
emergency. If you must travel, keep an extra flashlight, food, and
water in your vehicle in case of an emergency.

A Winter Weather Advisory for snow means that periods of snow 
will cause primarily travel difficulties. Be prepared for snow 
covered roads and limited visibilities, and use caution while 
driving.

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

&&

$$

MTZ011>013-060600-
/O.EXT.KTFX.WW.Y.0021.170305T2100Z-170306T0600Z/
Hill-Cascade-Chouteau-
1237 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Havre, Great Falls, Kings Hill Pass, Big Sandy, and 
  Fort Benton.

* Timing: This afternoon through late tonight.

* Impacts: Slick snow-covered roads will make for hazardous 
  travel conditions. 

* Accumulations: Snow accumulation of 1 to 3 inches, highest
  amounts mainly along US Highway 87 from near Great Falls to near
  Fort Benton.

* Winds: Northwest 5 to 10 mph.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ051-060745-
/O.EXT.KTFX.WW.Y.0021.170306T0400Z-170306T1000Z/
Fergus-
1237 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 9 PM THIS EVENING
TO 3 AM MST MONDAY...

* Locations: Lewistown and Lewistown Divide.

* Timing: Late this evening through late tonight.

* Impacts: Slick snow-covered roads will make for hazardous travel
  conditions. 

* Accumulations: Snow accumulation of up to 1 inch.

* Winds: Northwest 15 to 25 mph with gusts up to 40 mph.

* Snow Level: 4000 feet lowering to the plains. 

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ008-015-047-050-054-055-060745-
/O.CON.KTFX.WW.Y.0021.170306T0000Z-170306T0900Z/
Beaverhead-Madison-Blaine-Judith Basin-Meagher-Gallatin-
1237 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 2 AM MST MONDAY...

* Locations: White Sulphur Springs, Stanford, Chinook, Big Hole 
  Pass, Chief Joseph Pass, Dillon, Monida Pass, Battle Ridge 
  Pass, Bozeman, Bozeman Pass, Targhee Pass, West Yellowstone, 
  Ennis, Norris Hill, Raynolds Pass, and Twin Bridges.

* Timing: Late this afternoon through late tonight.

* Impacts: Slick snow-covered roads will cause hazardous travel
  conditions.

* Accumulations: Snow accumulation of 1 to 3 inches.

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

* Snow Level: 3500 feet lowering to the plains. 

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$
982 
WWUS45 KTFX 051951
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1251 PM MST Sun Mar 5 2017

MTZ014-060600-
/O.CON.KTFX.WS.W.0004.000000T0000Z-170306T0000Z/
/O.CON.KTFX.WW.Y.0022.170305T2100Z-170306T0600Z/
Central and Southern Lewis and Clark-
1251 PM MST Sun Mar 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Winter Storm Warning for Heavy Snow west of the
  Divide and across the southern Rocky Mountain Front. Winter
  Weather Advisory is for the remainder of Lewis and Clark County
  east of the Divide.

* Timing/Impacts: Heavy snow will continue through the afternoon
  west of the Divide and along the southern Rocky Mountain Front,
  including Lincoln and Augusta. Light to occasionally moderate 
  snow will fall mainly across the remainder of Lewis and Clark 
  County east of the Divide, including Rogers and MacDonald Pass.

* Accumulations: Snow accumulation of 1 to 3 inches, except an
  additional 3 to 5 inches west of the Divide and along the Rocky
  Mountain Front.

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

* Visibilities: Reduced to one-quarter mile at times in heavy snow
  west of the Divide and along the Rocky Mountain Front, and to 
  one mile or less at times to the east of the Divide this 
  evening.

* Impacts: The heavy snow west of the Divide and along the
  southern Rocky Mountain Front will create dangerous travel
  conditions with snow-covered roads and significant visibility
  reductions. Light to moderate snow east of the Divide will
  result in slick travel conditions because of snow. 

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast that will make travel dangerous. Only travel in an
emergency. If you must travel, keep an extra flashlight, food,
and water in your vehicle in case of an emergency.

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ049-060600-
/O.CON.KTFX.WW.Y.0022.170305T2100Z-170306T0600Z/
Eastern Teton-
1251 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Eastern Teton County. 

* Timing: Through this afternoon.

* Timing/Impacts: Slick driving conditions will develop as an 
  intense band of snow moving across the Divide moves onto the 
  Plains. The snow will move south and east of the area by early 
  evening.

* Accumulations: Snow accumulation of up to 1 inch.

* Winds: Northwest 5 to 10 mph.

* Visibilities: Reduced to one mile at times in snow.

* Impacts: The snowfall will create slippery and snow covered 
  roadways.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ011>013-060600-
/O.CON.KTFX.WW.Y.0021.170305T2100Z-170306T0600Z/
Hill-Cascade-Chouteau-
1251 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Havre, Great Falls, Kings Hill Pass, Big Sandy, and 
  Fort Benton.

* Timing: This afternoon through late tonight.

* Impacts: Slick snow-covered roads will make for hazardous 
  travel conditions.

* Accumulations: Snow accumulation of 1 to 3 inches, highest 
  amounts mainly along US Highway 87 from near Great Falls to 
  near Fort Benton.

* Winds: Northwest 5 to 10 mph.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ008-015-047-050-054-055-060800-
/O.CON.KTFX.WW.Y.0021.170306T0000Z-170306T0900Z/
Beaverhead-Madison-Blaine-Judith Basin-Meagher-Gallatin-
1251 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 2 AM MST MONDAY...

* Locations: White Sulphur Springs, Stanford, Chinook, Big Hole 
  Pass, Chief Joseph Pass, Dillon, Monida Pass, Battle Ridge 
  Pass, Bozeman, Bozeman Pass, Targhee Pass, West Yellowstone, 
  Ennis, Norris Hill, Raynolds Pass, and Twin Bridges.

* Timing: Late this afternoon through late tonight.

* Impacts: Slick snow-covered roads will cause hazardous travel 
  conditions.

* Accumulations: Snow accumulation of 1 to 3 inches.

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

* Snow Level: 3500 feet lowering to the plains.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ051-060800-
/O.CON.KTFX.WW.Y.0021.170306T0400Z-170306T1000Z/
Fergus-
1251 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 3 AM MST MONDAY...

* Locations: Lewistown and Lewistown Divide.

* Timing: Late this evening through late tonight.

* Impacts: Slick snow-covered roads will make for hazardous 
  travel conditions.

* Accumulations: Snow accumulation of up to 1 inch.

* Winds: Northwest 15 to 25 mph with gusts up to 40 mph.

* Snow Level: 4000 feet lowering to the plains.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$
492 
WWUS45 KTFX 052108
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
208 PM MST Sun Mar 5 2017


MTZ014-060600-
/O.CON.KTFX.WS.W.0004.000000T0000Z-170306T0000Z/
/O.CON.KTFX.WW.Y.0022.000000T0000Z-170306T0600Z/
Central and Southern Lewis and Clark-
208 PM MST Sun Mar 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON WEST OF THE DIVIDE...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Flesher Pass, Helena, Lincoln, MacDonald Pass, and 
  Rogers Pass.

* Timing/Impacts: Heavy snow will continue through the afternoon
  west of the Divide, including Lincoln. Light to occasionally moderate
  snow will fall mainly across the remainder of Lewis and Clark 
  County east of the Divide, including Rogers and MacDonald Pass.

* Accumulations: Snow accumulation of 1 to 3 inches, except 2 to 5
  inches west of the Divide.

* Winds: Northwest 5 to 10 mph.

* Visibilities: Reduced to one-quarter mile or less at times west
  of the Divide, and to one mile at times east of the Divide
  mainly after sunset.

* Impacts: Heavy snow will produce dangerous travel conditions
  west of the Divide. Light to moderate snow east of the Divide
  will cause slick roads.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for heavy snow means severe winter weather
conditions are expected or occurring. Significant amounts of snow
are forecast that will make travel dangerous. Only travel in an
emergency. If you must travel, keep an extra flashlight, food,
and water in your vehicle in case of an emergency.

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ048-060600-
/O.EXA.KTFX.WW.Y.0021.170305T2100Z-170306T0600Z/
Southern Rocky Mountain Front-
208 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 11 PM MST THIS
EVENING...

The National Weather Service in Great Falls has issued a Winter
Weather Advisory for Snow, which is in effect until 11 PM MST 
this evening.

* Locations: Choteau.

* Timing: This afternoon through this evening.

* Impacts: The snowfall will create slippery and snow covered 
  roadways.

* Accumulations: Snow accumulation of up to 1 inch.

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

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

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ049-060600-
/O.CON.KTFX.WW.Y.0022.000000T0000Z-170306T0600Z/
Eastern Teton-
208 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Eastern Teton County.

* Timing: Through this afternoon into early evening.

* Timing/Impacts: Slick driving conditions will develop as an 
  intense band of snow moving across the Divide moves onto the 
  Plains. The snow will move south and east of the area by early 
  evening.

* Accumulations: Snow accumulation of up to 1 inch.

* Winds: North 5 to 10 mph.

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

* Impacts: The snowfall will create slippery and snow covered 
  roadways.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ011>013-060600-
/O.CON.KTFX.WW.Y.0021.000000T0000Z-170306T0600Z/
Hill-Cascade-Chouteau-
208 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Havre, Great Falls, Kings Hill Pass, Big Sandy, and 
  Fort Benton.

* Timing: This afternoon through late this evening.

* Impacts: The snowfall will create slippery and snow covered 
  roadways.

* Accumulations: Snow accumulation of up to 3 inches.

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

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ008-015-047-050-054-055-060900-
/O.CON.KTFX.WW.Y.0021.170306T0000Z-170306T0900Z/
Beaverhead-Madison-Blaine-Judith Basin-Meagher-Gallatin-
208 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 2 AM MST MONDAY...

* Locations: White Sulphur Springs, Stanford, Chinook, Big Hole 
  Pass, Chief Joseph Pass, Dillon, Monida Pass, Battle Ridge 
  Pass, Bozeman, Bozeman Pass, Targhee Pass, West Yellowstone, 
  Ennis, Norris Hill, Raynolds Pass, and Twin Bridges.

* Timing: Late this afternoon through late tonight.

* Impacts: The heavy snow will create snow covered roads and 
  produce scattered power outages. 

* Accumulations: Snow accumulation of 1 to 3 inches over the
  Plains. Higher amounts of 3 to 7 inches expected over higher
  elevations and the passes along the Idaho border.

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

* Snow Level: 3500 feet lowering to the plains. 

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ051-060915-
/O.CON.KTFX.WW.Y.0021.170306T0400Z-170306T1000Z/
Fergus-
208 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 3 AM MST MONDAY...

* Locations: Lewistown and Lewistown Divide.

* Timing: Late this evening through late tonight.

* Impacts: The snowfall will create slippery and snow covered 
  roadways.

* Accumulations: Snow accumulation of up to 1 inch.

* Winds: Northwest 10 to 20 mph with gusts up to 35 mph.

* Snow Level: 3500 feet lowering to the plains. 

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$
289 
WWUS45 KTFX 052355
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
455 PM MST Sun Mar 5 2017

MTZ014-060600-
/O.EXP.KTFX.WS.W.0004.000000T0000Z-170306T0000Z/
/O.CON.KTFX.WW.Y.0022.000000T0000Z-170306T0600Z/
Central and Southern Lewis and Clark-
455 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON...

* Locations: Flesher Pass, Helena, Lincoln, MacDonald Pass, and 
  Rogers Pass.

* Timing: Periods of light to occasionally moderate snow will
  continue to affect Lewis and Clark County through the evening
  hours. 

* Accumulations: Additional snow accumulations of 1 to 3 inches.

* Winds: Northwest 5 to 10 mph.

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

* Impacts: Snow and ice will cause slick roads.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow 
will cause primarily travel difficulties. Be prepared for snow 
covered roads and limited visibilities, and use caution while 
driving.

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

&&

$$

MTZ049-060600-
/O.CON.KTFX.WW.Y.0022.000000T0000Z-170306T0600Z/
Eastern Teton-
455 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Eastern Teton County

* Timing: Periods of light to moderate snow will continue through
  this evening.

* Accumulations: Snow accumulation of 1 to 2 inches.

* Winds: North 5 to 10 mph.

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

* Impacts: Snow and ice will cause slick roads.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ011>013-048-060600-
/O.CON.KTFX.WW.Y.0021.000000T0000Z-170306T0600Z/
Hill-Cascade-Chouteau-Southern Rocky Mountain Front-
455 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* Locations: Choteau, Havre, Great Falls, Kings Hill Pass, Big 
  Sandy, and Fort Benton.

* Timing: Periods of light to occasionally moderate snow will
  continue through this evening.

* Impacts: Snow and ice will cause slick roads.

* Accumulations: Snow accumulation of 1 to 2 inches.

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

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

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ008-015-047-050-054-055-060900-
/O.CON.KTFX.WW.Y.0021.170306T0000Z-170306T0900Z/
Beaverhead-Madison-Blaine-Judith Basin-Meagher-Gallatin-
455 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 AM MST
MONDAY...

* Locations: White Sulphur Springs, Stanford, Chinook, Big Hole 
  Pass, Chief Joseph Pass, Dillon, Monida Pass, Battle Ridge 
  Pass, Bozeman, Bozeman Pass, Targhee Pass, West Yellowstone, 
  Ennis, Norris Hill, Raynolds Pass, and Twin Bridges.

* Timing: Periods of light to occasionally moderate snow will
  continue through late tonight.

* Impacts: Snow and ice will cause slick roads. Scattered power
  outages are possible due to heavy snow weighing down power
  lines.

* Accumulations: Snow accumulation of 1 to 3 inches over the 
  Plains. Higher amounts of 3 to 7 inches expected over higher 
  elevations and the passes along the Idaho border.

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

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$

MTZ051-061000-
/O.CON.KTFX.WW.Y.0021.170306T0400Z-170306T1000Z/
Fergus-
455 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 9 PM THIS
EVENING TO 3 AM MST MONDAY...

* Locations: Lewistown and Lewistown Divide.

* Timing: Periods of light to occasionally moderate snow will
  continue through late tonight.

* Impacts: Snow and ice will cause slick roads.

* Accumulations: Snow accumulation of 1 to 2 inches.

* Winds: Northwest 10 to 20 mph with gusts up to 35 mph.

* Web Page: To see a graphical representation of this hazard, 
  please visit our web page and click on the detailed hazards 
  tab.

* CANL Page: To see a graphical representation of the degree of 
  stress on young livestock, please visit our web page and click 
  on the items of interest link of the left, then select CANL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means that periods of snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving.

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

&&

$$
648 
WWUS45 KTFX 060349
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
849 PM MST Sun Mar 5 2017

MTZ014-049-060500-
/O.CAN.KTFX.WW.Y.0022.000000T0000Z-170306T0600Z/
Central and Southern Lewis and Clark-Eastern Teton-
849 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

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

Scattered snow showers will continue overnight but additional
accumulations are expected to be light. As a result, the Winter
Weather Advisory is cancelled.

$$

MTZ011>013-048-060500-
/O.CAN.KTFX.WW.Y.0021.000000T0000Z-170306T0600Z/
Hill-Cascade-Chouteau-Southern Rocky Mountain Front-
849 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

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

Scattered snow showers will continue overnight but additional
accumulations are expected to be light. As a result, the Winter
Weather Advisory is cancelled.

$$

MTZ008-015-047-050-054-055-060500-
/O.CAN.KTFX.WW.Y.0021.000000T0000Z-170306T0900Z/
Beaverhead-Madison-Blaine-Judith Basin-Meagher-Gallatin-
849 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

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

Scattered snow showers will continue overnight but additional
accumulations are expected to be light. As a result, the Winter
Weather Advisory is cancelled.

$$

MTZ051-060500-
/O.CAN.KTFX.WW.Y.0021.170306T0400Z-170306T1000Z/
Fergus-
849 PM MST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

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

Scattered snow showers will continue overnight but additional
accumulations are expected to be light. As a result, the Winter
Weather Advisory is cancelled.

$$

What forecasters said that day

The local office's own words before this winter weather advisory 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 weather advisory went out at Mar 4, 10:49 AM MST, 3 hours 43 minutes earlier.

Area forecast discussion, Mar 4, 10:49 AM MST, 3 hours 43 minutes before
Area Forecast Discussion
National Weather Service Great Falls MT
1049 AM MST Sat Mar 4 2017

Updated Aviation Discussion.

.UPDATE...

Surface low over Southern Alberta is beginning to move away to the
east. Water vapor imagery reveals drier air with subsidence
following the passing upper level trough axis. The combination of
a stronger surface pressure gradient and subsidence aloft will
produce a period of increasing surface winds along the Rocky
Mountain Front and adjacent plains through this afternoon. Warmer
temperatures and snow scouring have ended the blowing snow
concerns for this area, so the winter weather advisory will be
allowed to expire. Rain or mixed rain/snow showers could develop
and move across the Continental Divide later this afternoon. With
a few hundred Joules of CAPE in the guidance, have added isolated
thunder to the forecast. PN

&&

.AVIATION...
UPDATED 1749Z.

Southwest winds will weaken especially at the surface through the
afternoon as a disturbance and associated warm front pushes north
into the Plains this afternoon. KGTF and KLWT will be first to see
this change, followed by KHVR and then finally KCTB around 03z.
Expect VFR cigs to lower to MVFR and even IFR as upslope conditions
develop, especially toward KCTB. Southwest winds just above the
surface re-develop from the south to north (to the southeast of
KCTB) through this evening and extend into the overnight, creating
low-level wind shear issues especially across the Plains. Cassell

&&

.PREV DISCUSSION...
/ISSUED 505 AM MST Sat Mar 4 2017/

Today through Sunday...The main issue for today is the continuing
blowing snow along the northern Rocky Mountain Front. Though
winds have temporarily decreased overnight, they should become
quite strong again this morning, continuing the reduced visibility
and snow drifts over some roadways. US 89 between St. Mary and
Kiowa is still closed this morning as well, so will continue the
Winter Weather Advisory at least through this morning so that we
can further evaluate the situation.

Otherwise, an increasingly moist southwest flow aloft will
continue snow showers in the mountains, and spread showers to
lower elevations this afternoon as a surface low pressure area
moves into the area. This low pressure area will then drag a
Canadian cold front southeast into North Central Montana tonight,
likely bringing a band of snow to the Rocky Mountain Front and
adjacent plains, including Cut Bank. The front will then move
southeast over the remainder of the area, which will increase the
snow in the mountains and at lower elevations north and west of a
Great Falls to Havre line. The cooler air will be slower to get
into the valleys of Southwest Montana and to the south and east of
the line, so showers should mostly be at most a rain/snow mix
there. Forecast snow amounts appear to be at most worthy of an
Advisory, but it happens over a long enough time that
melting/settling of snow should hinder significant accumulations.
Temperatures will remain 5 to 10 degrees above normal today and
tonight, but they will cool to near normal in the south on Sunday
and 5 to 10 degrees below normal in the north.
Coulston

Sunday night through Saturday...Expect a progressive pattern of
weather disturbances to move through the region next week...but
no significant storms/cold air is expected at this time. Several
upper level disturbances will move through the region about one
day apart from Sunday night through next Saturday. As a
result...most days will have a at least a small chance for a
passing rain/snow shower. Again confidence is low in
timing/strength of each system...but for now...no significant
amounts of snowfall are expected at any one time next week.
Afternoon temperatures will slowly warm from Monday through
Wednesday...averaging close to 5 degrees above normal by
Wednesday/Thursday. Expect temperatures to fall a bit for
Friday/Saturday...falling to a few degrees below normal by
Saturday afternoon.
Brusda

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  51  26  37  19 /  20  30  40  30
CTB  42  16  26  12 /  10  60  80  30
HLN  51  26  38  17 /  20  30  50  30
BZN  49  29  41  17 /  20  30  50  30
WEY  36  24  30   7 /  40  60  80  60
DLN  46  28  38  16 /  20  30  50  30
HVR  48  24  36  20 /  10  30  40  30
LWT  48  29  42  18 /  20  20  40  40

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 10 AM MST this morning Northern
Rocky Mountain Front.

&&

weather.gov/greatfalls

Nearby

Winter Weather Advisories in Montana, 2017Every winter weather advisory 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.