Alert archive / Montana / Blizzard Warnings in 2019

Blizzard Warning 4, NWS Great Falls, MT

September 29, 2019

NWS Great Falls, MT issued this blizzard warning at Sep 29, 2019, 11:10 AM MDT. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 29, 2019, 11:10 AM MDT (17:10 UTC)
Expired
Sep 30, 2019, 5:15 AM MDT
In force
18 hr
Issued by
NWS Great Falls, MT

The text

As transmitted.

998 
WWUS45 KTFX 291710
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1110 AM MDT Sun Sep 29 2019

MTZ009-010-048-300515-
/O.UPG.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
/O.NEW.KTFX.BZ.W.0004.190929T1710Z-190930T0000Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
Including Logan Pass, Marias Pass, Browning, Heart Butte, 
Cut Bank, Bynum, Choteau, and Augusta
1110 AM MDT Sun Sep 29 2019

...BLIZZARD WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING...

* WHAT...Blizzard conditions occurring. Additional snow 
  accumulations of 3 to 10 inches. Winds gusting as high as 55 
  mph.

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

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel is not recommended. Widespread blowing snow 
  could significantly reduce visibility. Snow drifting in blowing 
  snow is blocking roadways..

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1. 

&&

$$

MTZ044>046-049-300515-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Toole-Liberty-Eastern Pondera-Eastern Teton-
Including Shelby, Sunburst, Chester, Whitlash, Brady, Conrad, 
Fairfield, and Dutton
1110 AM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 
  8 to 15 inches at lower elevations, up to 2 feet in the 
  mountains and immediate foothills of the Rocky Mountain Front. 
  Winds gusting as high as 50 mph.

* WHERE...Glacier, Toole, Liberty, Pondera, Teton, and Northern 
  Lewis and Clark Counties.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Extreme impacts will continue. Some tree damage will 
  be possible due to the heavy, wet snow falling onto trees with 
  foliage. Additional power outages are possible. Agricultural 
  interests; outdoor recreational interests, including camping 
  and hunting activities; and travel will also continue to be 
  negatively impacted.

* ADDITIONAL DETAILS...Near blizzard conditions are possible at 
  times through Sunday afternoon, especially along and northwest 
  of a Heart Butte, to Cut Bank, to Sweet Grass line.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

Moldan

$$

MTZ012-050-300515-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Cascade-Judith Basin-
Including Great Falls, Cascade, Belt, Kings Hill Pass, 
Raynesford, Stanford, and Hobson
1110 AM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 
  3 to 6 inches across Judith Basin County, and 6 to 12 inches 
  across Cascade County.

* WHERE...Judith Basin and Cascade Counties.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Extreme impacts will continue. Some tree damage will 
  still be possible due to the heavy, wet snow falling onto 
  trees with foliage. Additional power outages are possible. 
  Agricultural interests; outdoor recreational interests, 
  including camping and hunting activities; and travel will also 
  continue to be negatively impacted.

* ADDITIONAL DETAILS...The next wave of moderate to heavy snow 
  will lift north across the region through the mid-morning 
  hours and into the early afternoon on Sunday. Snowfall rates 
  could approach 1 to 2 inches per hour at times, which would 
  significantly reduce visibilities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

Moldan

$$

MTZ014-052>054-300515-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Central and Southern Lewis and Clark-Jefferson-Broadwater-Meagher-
Including Helena, Lincoln, MacDonald Pass, Rogers Pass, 
Montana City, Boulder, Boulder Hill, Elk Park Pass, 
Homestake Pass, Whitehall, Toston, Townsend, Winston, 
Martinsdale, and White Sulphur Springs
1110 AM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 
  2 to 7 inches at lower elevations, and 7 to 14 inches in the 
  mountains. Winds gusting as high as 35 mph.

* WHERE...Meagher, Jefferson, Broadwater and Central and 
  Southern Lewis and Clark Counties.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility.

* ADDITIONAL DETAILS...Some tree and power line damage is 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

Moldan

$$

MTZ011-013-047-051-300515-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Hill-Chouteau-Blaine-Fergus-
Including Havre, Rocky Boy, Rudyard, Fort Benton, Carter, 
Big Sandy, Chinook, Harlem, Hays, Lewistown, Winifred, 
Lewistown Divide, and Grass Range
1110 AM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 
  1 to 3 inches over the lower elevations of Fergus and Blaine 
  Counties, 3 to 7 inches over the lower elevations of Hill and 
  Chouteau Counties, and up to 12 inches in the mountains. Winds 
  gusting as high as 40 mph.

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Extreme impacts will continue. Some tree damage will 
  be possible due to the heavy, wet snow falling onto trees with 
  foliage. Additional power outages are possible. Agricultural 
  interests; outdoor recreational interests, including camping 
  and hunting activities; and travel will also continue to be 
  negatively impacted.

* ADDITIONAL DETAILS...Snow could turn back to rain along and 
  east of a Lewistown to Havre line, which would reduce snow 
  accumulations. Areas of blowing snow could significantly 
  reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

Moldan

$$

MTZ008-015-055-300515-
/O.CON.KTFX.WW.Y.0037.000000T0000Z-190930T0600Z/
Beaverhead-Madison-Gallatin-
Including Big Hole Pass, Wisdom, Dillon, Chief Joseph Pass, 
Monida Pass, Wise River, Ennis, Norris Hill, Raynolds Pass, 
Twin Bridges, Virginia City, Bozeman, West Yellowstone, 
Battle Ridge Pass, Bozeman Pass, and Targhee Pass
1110 AM MDT Sun Sep 29 2019

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

* WHAT...Snow occurring. Additional snow accumulations of 2 to 5 
  inches at lower elevations, and 5 to 10 inches in the 
  mountains.

* WHERE...Gallatin, Beaverhead, and Madison Counties.

* WHEN...Until midnight MDT tonight.

* IMPACTS...Travel could be difficult. Patchy blowing snow could 
  significantly reduce visibility.

* ADDITIONAL DETAILS...Some tree and power line damage is 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

Moldan

$$

http://www.weather.gov/greatfalls
5 follow-up statements
934 
WWUS45 KTFX 292053
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
253 PM MDT Sun Sep 29 2019


MTZ009-010-048-300000-
/O.CON.KTFX.BZ.W.0004.000000T0000Z-190930T0000Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
Including the cities of Logan Pass, Marias Pass, Browning, 
Heart Butte, Cut Bank, Bynum, Choteau, and Augusta
253 PM MDT Sun Sep 29 2019

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Blizzard conditions occurring. Additional snow
  accumulations of 3 to 10 inches. Winds gusting as high as 55 
  mph. 

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

* WHEN...Until 6 PM MDT this evening.

* IMPACTS...Travel is not recommended. Widespread blowing snow 
  could significantly reduce visibility. Snow drifting in 
  blowing snow is blocking roadways.. 

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

MTZ044>046-049-300500-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Toole-Liberty-Eastern Pondera-Eastern Teton-
Including the cities of Shelby, Sunburst, Chester, Whitlash, 
Brady, Conrad, Fairfield, and Dutton
253 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 1
  to 5 inches at lower elevations. Winds gusting as high as 40 
  mph.
  

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage
  will be possible due to snow falling onto trees with foliage. 
  Additional power outages are possible. Agricultural interests; 
  outdoor recreational interests, including camping and hunting 
  activities; and travel will also continue to be negatively 
  impacted. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&



$$

MTZ012-050-300500-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Cascade-Judith Basin-
Including the cities of Great Falls, Cascade, Belt, 
Kings Hill Pass, Raynesford, Stanford, and Hobson
253 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Additional snow accumulations of 1 to 3 inches are
  possible through Monday morning, with locally higher amounts
  possible.
  

* WHERE...Judith Basin and Cascade Counties.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage
  will still be possible due snow falling onto trees with 
  foliage. Additional power outages are possible. Agricultural 
  interests; outdoor recreational interests, including camping and
  hunting activities; and travel will also continue to be 
  negatively impacted. 
 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&



$$

MTZ014-052>054-300500-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Central and Southern Lewis and Clark-Jefferson-Broadwater-Meagher-
Including the cities of Helena, Flesher Pass, Lincoln, 
MacDonald Pass, Rogers Pass, Montana City, Boulder, Boulder Hill,
Elk Park Pass, Homestake Pass, Whitehall, Toston, Townsend, 
Winston, Martinsdale, and White Sulphur Springs
253 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Additional snow accumulations of 1 to 3 inches are
  possible through Monday morning, with locally higher amounts
  possible.

* WHERE...Meagher, Jefferson, Broadwater and Central and 
  Southern Lewis and Clark Counties. 

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility. 

* ADDITIONAL DETAILS...Some tree and power line damage is 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&



$$

MTZ011-013-047-051-300500-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Hill-Chouteau-Blaine-Fergus-
Including the cities of Havre, Rocky Boy, Rudyard, Fort Benton, 
Carter, Big Sandy, Chinook, Harlem, Hays, Lewistown, Winifred, 
Lewistown Divide, and Grass Range
253 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 1
  to 3 inches, with locally higher amounts possible. Winds gusting
  as high as 35 mph.
  

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage
  will be possible due to snow falling onto trees with foliage. 
  Additional power outages are possible. Agricultural interests; 
  outdoor recreational interests, including camping and hunting 
  activities; and travel will also continue to be negatively 
  impacted. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&



$$

MTZ008-015-055-300500-
/O.CON.KTFX.WW.Y.0037.000000T0000Z-190930T0600Z/
Beaverhead-Madison-Gallatin-
Including the cities of Big Hole Pass, Wisdom, Dillon, 
Chief Joseph Pass, Monida Pass, Wise River, Ennis, Norris Hill, 
Raynolds Pass, Twin Bridges, Virginia City, Bozeman, 
West Yellowstone, Battle Ridge Pass, Bozeman Pass, 
and Targhee Pass
253 PM MDT Sun Sep 29 2019

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

* WHAT...Snow occurring. Additional snow accumulations of 1 to 3
  inches at lower elevations, with locally higher amounts possible 
  in the mountains.
  

* WHERE...Gallatin, Beaverhead, and Madison Counties.

* WHEN...Until midnight MDT tonight.

* IMPACTS...Travel could be difficult. Patchy blowing snow could 
  significantly reduce visibility. 

* ADDITIONAL DETAILS...Some tree and power line damage is 
  possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&



$$
599 
WWUS45 KTFX 292115
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
315 PM MDT Sun Sep 29 2019

MTZ009-010-048-300600-
/O.EXB.KTFX.WS.W.0009.190930T0000Z-190930T1200Z/
/O.CON.KTFX.BZ.W.0004.000000T0000Z-190930T0000Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
Including Logan Pass, Marias Pass, Browning, Heart Butte, 
Cut Bank, Bynum, Choteau, and Augusta
315 PM MDT Sun Sep 29 2019

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...WINTER STORM WARNING IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...For the Blizzard Warning, blizzard conditions occurring.
  Additional snow accumulations of 2 to 6 inches. Winds gusting 
  as high as 55 mph. After 6 PM MDT, Winter Storm Warning comes 
  into effect with an additional 1 to 3 inches snow accumulations 
  and winds gusting up to 40 mph overnight.

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

* WHEN...For the Blizzard Warning, until 6 PM MDT this evening. For
  the Winter Storm Warning, until 6 AM MDT Monday. 
 
* IMPACTS...Travel is not recommended. Widespread blowing snow 
  could significantly reduce visibility. Snow drifting in 
  blowing snow is blocking roadways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1. 

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ044>046-049-300600-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Toole-Liberty-Eastern Pondera-Eastern Teton-
Including Shelby, Sunburst, Chester, Whitlash, Brady, Conrad, 
Fairfield, and Dutton
315 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 1
  to 5 inches. Winds gusting as high as 40 mph.

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage 
  will be possible due to snow falling onto trees with foliage. 
  Additional power outages are possible. Agricultural interests; 
  outdoor recreational interests, including camping and hunting 
  activities; and travel will also continue to be negatively 
  impacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ012-050-300600-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Cascade-Judith Basin-
Including Great Falls, Cascade, Belt, Kings Hill Pass, 
Raynesford, Stanford, and Hobson
315 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Additional snow accumulations of 1 to 3 inches are 
  possible through Monday morning, with locally higher amounts 
  possible.

* WHERE...Judith Basin and Cascade Counties.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage 
  will still be possible due snow falling onto trees with 
  foliage. Additional power outages are possible. Agricultural 
  interests; outdoor recreational interests, including camping 
  and hunting activities; and travel will also continue to be 
  negatively impacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ014-052>054-300600-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Central and Southern Lewis and Clark-Jefferson-Broadwater-Meagher-
Including Helena, Lincoln, MacDonald Pass, Rogers Pass, 
Montana City, Boulder, Boulder Hill, Elk Park Pass, 
Homestake Pass, Whitehall, Toston, Townsend, Winston, 
Martinsdale, and White Sulphur Springs
315 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Additional snow accumulations of 1 to 3 inches are 
  possible through Monday morning, with locally higher amounts 
  possible.

* WHERE...Meagher, Jefferson, Broadwater and Central and 
  Southern Lewis and Clark Counties.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility.

* ADDITIONAL DETAILS...Some tree and power line damage is 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ011-013-047-051-300600-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Hill-Chouteau-Blaine-Fergus-
Including Havre, Rocky Boy, Rudyard, Fort Benton, Carter, 
Big Sandy, Chinook, Harlem, Hays, Lewistown, Winifred, 
Lewistown Divide, and Grass Range
315 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 
  1 to 3 inches, with locally higher amounts possible. Winds 
  gusting as high as 35 mph.

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage 
  will be possible due to snow falling onto trees with foliage. 
  Additional power outages are possible. Agricultural interests; 
  outdoor recreational interests, including camping and hunting 
  activities; and travel will also continue to be negatively 
  impacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ008-015-055-300600-
/O.CON.KTFX.WW.Y.0037.000000T0000Z-190930T0600Z/
Beaverhead-Madison-Gallatin-
Including Big Hole Pass, Wisdom, Dillon, Chief Joseph Pass, 
Monida Pass, Wise River, Ennis, Norris Hill, Raynolds Pass, 
Twin Bridges, Virginia City, Bozeman, West Yellowstone, 
Battle Ridge Pass, Bozeman Pass, and Targhee Pass
315 PM MDT Sun Sep 29 2019

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

* WHAT...Snow occurring. Additional snow accumulations of 1 to 3 
  inches at lower elevations, with locally higher amounts 
  possible in the mountains.

* WHERE...Gallatin, Beaverhead, and Madison Counties.

* WHEN...Until midnight MDT tonight.

* IMPACTS...Travel could be difficult. Patchy blowing snow could 
  significantly reduce visibility.

* ADDITIONAL DETAILS...Some tree and power line damage is 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

http://www.weather.gov/greatfalls
442 
WWUS45 KTFX 292357
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
557 PM MDT Sun Sep 29 2019

MTZ009-010-048-301200-
/O.CAN.KTFX.WS.W.0009.190930T0000Z-190930T1200Z/
/O.EXT.KTFX.BZ.W.0004.000000T0000Z-190930T1200Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
Including Logan Pass, Marias Pass, Browning, Heart Butte, 
Cut Bank, Bynum, Choteau, and Augusta
557 PM MDT Sun Sep 29 2019

...BLIZZARD WARNING NOW IN EFFECT UNTIL 6 AM MDT MONDAY...
...WINTER STORM WARNING IS CANCELLED...

* WHAT...For the Blizzard Warning, blizzard conditions occurring.
  Additional snow accumulations of 2 to 6 inches. Winds gusting 
  as high as 45 mph.

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Travel is not recommended. Widespread blowing snow  
  could significantly reduce visibility. Blowing and drifting snow
  is blocking roadways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1. 

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ044>046-049-301200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Toole-Liberty-Eastern Pondera-Eastern Teton-
Including Shelby, Sunburst, Chester, Whitlash, Brady, Conrad, 
Fairfield, and Dutton
557 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 
  2 to 5 inches. Winds gusting as high as 40 mph.

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage 
  will be possible due to snow falling onto trees with foliage. 
  Additional power outages are possible. Agricultural interests; 
  outdoor recreational interests, including camping and hunting 
  activities; and travel will also continue to be negatively 
  impacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ012-050-301200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Cascade-Judith Basin-
Including Great Falls, Cascade, Belt, Kings Hill Pass, 
Raynesford, Stanford, and Hobson
557 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Additional snow accumulations of 1 to 3 inches are 
  possible through Monday morning, with locally higher amounts 
  possible.

* WHERE...Judith Basin and Cascade.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage 
  will still be possible due snow falling onto trees with 
  foliage. Additional power outages are possible. Agricultural 
  interests; outdoor recreational interests, including camping 
  and hunting activities; and travel will also continue to be 
  negatively impacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ014-052>054-301200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Central and Southern Lewis and Clark-Jefferson-Broadwater-Meagher-
Including Helena, Lincoln, MacDonald Pass, Rogers Pass, 
Montana City, Boulder, Boulder Hill, Elk Park Pass, 
Homestake Pass, Whitehall, Toston, Townsend, Winston, 
Martinsdale, and White Sulphur Springs
557 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Additional snow accumulations of 1 to 3 inches are 
  possible through Monday morning, with locally higher amounts 
  possible.

* WHERE...Meagher, Jefferson, Broadwater and Central and 
  Southern Lewis and Clark.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Travel could be very difficult. Areas of blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ011-013-047-051-301200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Hill-Chouteau-Blaine-Fergus-
Including Havre, Rocky Boy, Rudyard, Fort Benton, Carter, 
Big Sandy, Chinook, Harlem, Hays, Lewistown, Winifred, 
Lewistown Divide, and Grass Range
557 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Heavy snow occurring. Additional snow accumulations of 
  1 to 3 inches, with locally higher amounts possible. Winds 
  gusting as high as 35 mph.

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Winter storm impacts will continue. Some tree damage 
  will be possible due to snow falling onto trees with foliage. 
  Additional power outages are possible. Agricultural interests; 
  outdoor recreational interests, including camping and hunting 
  activities; and travel will also continue to be negatively 
  impacted.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

MTZ008-015-055-300600-
/O.CON.KTFX.WW.Y.0037.000000T0000Z-190930T0600Z/
Beaverhead-Madison-Gallatin-
Including Big Hole Pass, Wisdom, Dillon, Chief Joseph Pass, 
Monida Pass, Wise River, Ennis, Norris Hill, Raynolds Pass, 
Twin Bridges, Virginia City, Bozeman, West Yellowstone, 
Battle Ridge Pass, Bozeman Pass, and Targhee Pass
557 PM MDT Sun Sep 29 2019

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

* WHAT...Snow occurring. Additional snow accumulations of 1 to 3 
  inches at lower elevations, with locally higher amounts 
  possible in the mountains.

* WHERE...Gallatin, Beaverhead and Madison.

* WHEN...Until midnight MDT tonight.

* IMPACTS...Travel could be difficult. Patchy blowing snow could 
  significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

$$

http://www.weather.gov/greatfalls
780 
WWUS45 KTFX 300504
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
1104 PM MDT Sun Sep 29 2019

MTZ012-014-050>054-300615-
/O.CAN.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Cascade-Central and Southern Lewis and Clark-Judith Basin-Fergus-
Jefferson-Broadwater-Meagher-
1104 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING IS CANCELLED...

This Winter Storm Warning has been cancelled as snow has or is 
quickly coming to an end across the warned area this evening.
While snow may be ending across the region, motorist should still
be prepared for winter driving conditions, especially given
temperatures below freezing and wet road surfaces. Be especially
careful when driving over bridge decks or walking on elevated
surfaces. In addition, trees and powerlines could still fall given
the weight of the heavy, wet snow still remaining on them.

$$

MTZ008-015-055-300615-
/O.CAN.KTFX.WW.Y.0037.000000T0000Z-190930T0600Z/
Beaverhead-Madison-Gallatin-
1104 PM MDT Sun Sep 29 2019

...WINTER WEATHER ADVISORY IS CANCELLED...

This Winter Weather Advisory has been cancelled as snow has or is
quickly coming to an end across the advised area this evening. 
While snow may be ending across the region, motorist should still 
be prepared for winter driving conditions, especially given 
temperatures below freezing and wet road surfaces. Be especially 
careful when driving over bridge decks or walking on elevated 
surfaces. In addition, trees and powerlines could still fall given
the weight of the heavy, wet snow still remaining on them.

$$

MTZ009-010-048-301200-
/O.CON.KTFX.BZ.W.0004.000000T0000Z-190930T1200Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
Including Logan Pass, Marias Pass, Browning, Heart Butte, 
Cut Bank, Bynum, Choteau, and Augusta
1104 PM MDT Sun Sep 29 2019

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Blizzard conditions occurring. Additional snow  
  accumulations of 1 to 3 inches at most locations, with 3 to 6 
  inches in extreme Northwestern Glacier County. Winds gusting as 
  high as 35 mph.

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Travel is not recommended. Widespread blowing snow
  could significantly reduce visibility. Blowing and drifting snow
  is blocking roadways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Travel should be restricted to emergencies only. If you must
travel, have a winter survival kit with you. If you get stranded,
stay with your vehicle. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1. 

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

Moldan

$$

MTZ044>046-049-301200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Toole-Liberty-Eastern Pondera-Eastern Teton-
Including Shelby, Sunburst, Chester, Whitlash, Brady, Conrad, 
Fairfield, and Dutton
1104 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Snow occurring. Additional snow accumulations of 1 to 2 
  inches at most locations, with up to 4 inches in the Sweet Grass
  Hills. Winds gusting as high as 35 mph.

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

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Plan on slippery road conditions. Areas of blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1. 

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

Moldan

$$

MTZ011-013-047-301200-
/O.CON.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Hill-Chouteau-Blaine-
Including Havre, Rocky Boy, Rudyard, Fort Benton, Carter, 
Big Sandy, Chinook, Harlem, and Hays
1104 PM MDT Sun Sep 29 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY...

* WHAT...Snow occurring. Additional snow accumulations of up to 
  one inch.

* WHERE...Blaine, Hill and Chouteau.

* WHEN...Until 6 AM MDT Monday.

* IMPACTS...Plan on slippery road conditions. Patchy blowing 
  snow could significantly reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1. 

To see a graphical representation of the degree of stress on
young livestock please visit our webpage and select Local
Programs then Cold Air Advisory for Newborn Livestock.

&&

Moldan

$$

http://www.weather.gov/greatfalls
264 
WWUS45 KTFX 301115
WSWTFX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Great Falls MT
515 AM MDT Mon Sep 30 2019

MTZ009-010-048-301215-
/O.CAN.KTFX.BZ.W.0004.000000T0000Z-190930T1200Z/
Northern Rocky Mountain Front-Eastern Glacier-
Southern Rocky Mountain Front-
515 AM MDT Mon Sep 30 2019

...BLIZZARD WARNING IS CANCELLED...

The Blizzard Warning has been cancelled as snow continues to come
to an end and winds decrease across the warned area this morning.
While snow may be ending across the region, motorist should still
be prepared for winter driving conditions, including snowpacked 
roads and brief periods of reduced visibilities from blowing snow. 
In addition, trees and powerlines could still fall given the 
weight of the heavy, wet snow still remaining on them.

$$

MTZ011-013-044>047-049-301215-
/O.CAN.KTFX.WS.W.0009.000000T0000Z-190930T1200Z/
Hill-Chouteau-Toole-Liberty-Eastern Pondera-Blaine-Eastern Teton-
515 AM MDT Mon Sep 30 2019

...WINTER STORM WARNING IS CANCELLED...

The Winter Storm Warning has been cancelled as accumulating snow 
has come to an end across the warned area this morning. While 
snow has ended across the region, motorist should still be 
prepared for winter driving conditions, especially given 
temperatures below freezing and wet road surfaces. Be especially 
careful when driving over bridge decks or walking on elevated 
surfaces. In addition, trees and powerlines could still fall given
the weight of the heavy, wet snow still remaining on them.


$$

http://www.weather.gov/greatfalls

What forecasters said that day

The local office's own words before this blizzard 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 blizzard warning went out at Sep 29, 9:35 AM MDT, 1 hour 35 minutes earlier.

Area forecast discussion, Sep 29, 9:35 AM MDT, 1 hour 35 minutes before
Area Forecast Discussion
National Weather Service Great Falls MT
935 AM MDT Sun Sep 29 2019

.SYNOPSIS...

A major winter storm will continue across the Northern Rockies
through the day today, with precipitation slowly coming to an end
from south to north tonight. Near-blizzard conditions are possible
along the Rocky Mountain Front during the day today as winds
strengthen. Widespread tree damage will continue to occur over the
plains of North Central Montana, with additional power outages
possible as the heavy, wet snow weighs down power lines.

&&

.UPDATE...

The morning update has been published. A significant winter storm
is impacting much of the region and will continue to do so
through late tonight. Not much updating was needed this morning but
did blend pops, snowfall, and wind grids with the latest
guidance. The Rocky Mountain Front and the adjacent plains
continue to have the greatest impacts with heavy snow and near
blizzard conditions. The most significant snow accumulation for
today is still expected to occur north and west of the Great Falls
area. The eastern portions of Central/North-central Montana will
not see as much accumulation due to some warm air intrusion, which
will allow the snow to mix with or become rain at times. We will
be keeping a close eye on the southwest as a couple periods of
snow are expected through this evening. There was no change in the
winter weather products in terms of timing but did raise the snow
totals in the southwest by an inch or two in some spots.

&&

.AVIATION...
Updated 510 AM MDT Sun Sep 29 2019 (29/12z TAF Issuance)

A strong winter storm will continue to impact the Northern Rockies
throughout the duration of the 2912/3012 TAF period. Moderate to at
times heavy snow will produce LIFR/IFR conditions over North Central
Montana (including the KCTB, KHVR, KGTF, KLWT, and KHLN terminals)
throughout the day today and into portions of the overnight hours.
Snow accumulations may reach or exceed 1 to 3 inches/hour for
several hours along and northwest of a KHLN, to KGTF, to KHVR line.
To the south over Southwest Montana (including the KBZN, KEKS, KWYS
terminals), IFR/MVFR/VFR conditions are expected, with precipitation
generally decreasing in areal coverage by the evening hours tonight.
Strong and gusty north to northeast winds will cause areas of
blowing snow at times through the afternoon hours today, but become
more northwesterly or even westerly later in the period as the low
pressure system begins to move away from the area. Mountains
obscuration will continue through the forecast period. - Moldan/CC

&&

.PREV DISCUSSION...
/ISSUED 326 AM MDT Sun Sep 29 2019/

Today through Monday night...primary forecast concerns are winds and
continued snow today/tonight, and then the potential for record low
temperatures Monday night.

H500 closed low, which was embedded within a broad and deep trough
across the Western CONUS, was nearly stationary over the Columbia
River Valley of Northern Oregon/Southern Washington early this
morning. Further to the south of the aforementioned H500 low, height
falls were spreading northeast from the ejecting trough axis across
the Great Basin. These height fall will continue to quickly spread
northeast over the Central Rockies by the mid-morning hours today
and over Northeast Montana by midnight tonight. Very impressive
upper level divergence and ascent will move from south to north
across the Northern Rockies this morning and through the day as the
trough axis ejects out of the Great Basin, which combined with the
continued low to mid-level east-to-northeast upslope flow and
Pacific moisture being advected into the region will lead to another
period of moderate-to-heavy precipitation (especially over the
plains of North Central Montana and along the Rocky Mountain Front).
While a bulk of the precipitation will fall as snow over this
period, a nose of mid-level warm air advecting in across far eastern
portions of the CWA (along and east of a Lewistown to Havre line)
may lead to period of a rain/snow or sleet mix, which will cut down
on snowfall amounts. Strong lift focused within a saturated
dendritic growth zone this morning through this afternoon will lead
to a period of impressive snowfall rates northwest of a Great Falls
to Havre line, which could lead to hourly snowfall rates of 1" to
possibly 2". In addition to high snowfall rates, breezy to strong
northerly winds (especially along and west of the United States
Highway 87 corridor) will lead to patchy or areas of blowing snow.
Areas along and northwest of a Heart Butte, to Cut Bank, to Sweet
Grass line could even approach near-blizzard conditions into the
afternoon hours today; but given uncertainty (of 3hrs of 1/4 mile
visibility or less) and the extreme snowfall amounts that have
already fallen (conditions are already bad) I have decided to hold
off on issuing any Blizzard Warnings. We will continue to monitor
observations over this area though in case Blizzard conditions
develop or become more widespread than expected.

Precipitation will gradually come to an end from south to north
during the overnight hours tonight, with the one exception being
along the Hi-Line/Rocky Mountain Front, where additional snowfall
will only exacerbate snowfall totals (which will likely break
September records). By Monday morning, the closed low responsible
for the winter punch across the Northern Rockies will begin to
drift northeast across North Central Montana and into Southern
Saskatchewan. This will help to maintain well below normal
temperatures across the entire region, with most locations only
rising into the 30s. Additional light snow is possible during the
day on Monday, but the bulk of the accumulating snow will have
come to an end. For this reason, will allow all the current
highlights to end at their respective times. While broad troughing
resulting in some cloud cover will remain over the region Monday
night, the fresh snow pack and surface high pressure building in
from Canada will allow temperature to plummet into the teens at
most locations Monday night/Tuesday morning. Record low
temperatures will be in jeopardy of falling over this timeframe, most
notably at Cut Bank, Havre, Great Falls, and Lewistown. - Moldan

Tuesday through Sunday...A few snow showers are possible at times
Tuesday as weak shortwave energy moves through the upper trough.
A chilly airmass remains in place across the region through at
least the first half of next week with unseasonably cool daytime
temperatures and a high likelihood of record cold overnight low
temperatures Tuesday night. With many locations expected to see
overnight minimum temperatures in the teens and twenties this may
pose a threat to non-winterized outdoor plumbing/irrigation
systems. Coldest temperatures are likely to occur across western
portions of north-central MT, where a significant snow pack is
anticipated to be in place. A brief period of ridging aloft looks
to shift across the region late Wednesday through Thursday night,
allow temperatures to recover to within 10 degrees of seasonal
averages, but still on the cool side. the next Pacific trough
moves onto the west coast by Friday and will bring a chance of
precipitation and cooling temperatures for the end of the week
into next weekend. - Hoenisch

&&

.PRELIMINARY POINT TEMPS/POPS...
GTF  33  24  33  15 / 100  90  20  10
CTB  29  23  31  13 / 100 100  60  10
HLN  34  22  36  17 / 100  50  20  20
BZN  37  21  38  17 /  70  50  30  20
WEY  36  18  36  13 /  80  40  50  20
DLN  34  20  37  18 / 100  40  20  20
HVR  35  26  35  18 / 100 100  40  20
LWT  34  22  32  16 /  90  70  10  10

&&

.TFX WATCHES/WARNINGS/ADVISORIES...
Winter Storm Warning until 6 AM MDT Monday Broadwater...Central
and Southern Lewis and Clark...Jefferson...Meagher.

Winter Storm Warning until 6 AM MDT Monday Eastern Glacier...
Eastern Pondera...Eastern Teton...Liberty...Northern Rocky
Mountain Front...Southern Rocky Mountain Front...Toole.

Winter Weather Advisory until midnight MDT tonight Beaverhead...
Gallatin...Madison.

Winter Storm Warning until 6 AM MDT Monday Cascade...Judith
Basin.

Winter Storm Warning until 6 AM MDT Monday Blaine...Chouteau...
Fergus...Hill.

&&

http://www.weather.gov/greatfalls

In the hours before

Local storm report, Sep 29, 9:18 AM MDT, 1 hour 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
918 AM MDT SUN SEP 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     HEAVY SNOW       CUT BANK                48.64N 112.33W
09/29/2019  E12.0 INCH       GLACIER            MT   PUBLIC

            10 TO 12 INCHES STORM TOTAL SNOW
            ACCUMULATION. HAM RADIO REPORT.

&&
Local storm report, Sep 29, 9:19 AM MDT, 1 hour 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
919 AM MDT SUN SEP 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0918 AM     SNOW             LEWISTOWN               47.06N 109.43W
09/29/2019  E6.0 INCH        FERGUS             MT   PUBLIC

            6 INCHES SNOW ACCUMULATION. HAM RADIO
            REPORT.

&&
Local storm report, Sep 29, 9:20 AM MDT, 1 hour 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
920 AM MDT SUN SEP 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     SNOW             3 NNW BLACK EAGLE       47.56N 111.29W
09/29/2019  E6.0 INCH        CASCADE            MT   PUBLIC

            6 INCHES SNOW ACCUMULATION AFTER BLOWING AND
            DRIFTING. HAM RADIO REPORT.

&&
Local storm report, Sep 29, 9:28 AM MDT, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
928 AM MDT SUN SEP 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 AM     SNOW             2 NW GREAT FALLS        47.53N 111.32W
09/29/2019  E8.0 INCH        CASCADE            MT   PUBLIC

            8 INCHES WET SNOW.

&&
Local storm report, Sep 29, 9:29 AM MDT, 1 hour 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
929 AM MDT SUN SEP 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0715 AM     SNOW             2 SE MONTANA CITY       46.52N 111.90W
09/29/2019  E5.3 INCH        JEFFERSON          MT   TRAINED SPOTTER

            0.53 INCHES SNOW WATER EQUIVALENT LAST 24
            HRS, 0.98 INCHES STORM TOTAL.

&&
Local storm report, Sep 29, 9:33 AM MDT, 1 hour 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREAT FALLS MT
933 AM MDT SUN SEP 29 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0715 AM     SNOW             BOZEMAN HOT SPRING      45.65N 111.19W
09/29/2019  M1.6 INCH        GALLATIN           MT   COCORAHS

            COCORAHS STATION MT-GN-16 BOZEMAN HOT SPRING
            COCORAHS.

0700 AM     SNOW             3 ENE DUTTON            47.86N 111.65W
09/29/2019  M11.0 INCH       TETON              MT   COCORAHS

            COCORAHS STATION MT-TN-3 3 ENE DUTTON
            COCORAHS.

0700 AM     SNOW             2 SSE BOZEMAN           45.66N 111.03W
09/29/2019  M1.5 INCH        GALLATIN           MT   COCORAHS

            COCORAHS STATION MT-GN-11 1 SE BOZEMAN
            COCORAHS.

&&

Nearby

Blizzard Warnings in Montana, 2019Every blizzard warning in 2019

Sources

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