Alert archive / Montana / Winter Storm Warnings in 2012

Winter Storm Warning 2, NWS Billings, MT

January 15, 20124 counties in Montana

NWS Billings, MT issued this winter storm warning at Jan 15, 2012, 4:19 AM MST for 4 counties in Montana. It took effect at Jan 15, 2012, 2:00 PM MST. It was in force for 25 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
Jan 15, 2012, 4:19 AM MST (11:19 UTC)
In effect from
Jan 15, 2012, 2:00 PM MST
Expired
Jan 16, 2012, 2:51 PM MST
In force
25 hr
Issued by
NWS Billings, MT

Counties Carbon County, MT, Park County, MT, Stillwater County, MT, Sweet Grass County, MT

The radar

The Billings radar (KBLX), 93 km from the middle of the area, began a volume at 11:25 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Great_falls, MT (KTFX), launched 00:00Z, 11.3 hours before the alert went out and 223 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Great_falls, MT at 00:00Z on 2012-01-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Great_falls, MT at 00:00Z on 2012-01-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 214 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2522 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
214 m²/s²
0-3 km storm-relative helicity
289 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

522 
WWUS45 KBYZ 151119
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
419 AM MST SUN JAN 15 2012

.AN ARCTIC AIR MASS WILL MOVE INTO THE REGION TODAY. THE VERY COLD
AIR NEAR THE SURFACE AND PACIFIC MOISTURE STREAMING IN FROM THE
WEST WILL CREATE A PERIOD OF OVERRUNNING SNOWFALL THIS AFTERNOON
INTO MONDAY.

MTZ067-161130-
/O.UPG.KBYZ.WS.A.0001.120116T0100Z-120117T0100Z/
/O.NEW.KBYZ.WS.W.0002.120115T2100Z-120117T0100Z/
ABSAROKA/BEARTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF...COOKE CITY
419 AM MST SUN JAN 15 2012

...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO
6 PM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 12 TO 16 INCHES ARE
  EXPECTED OVER NORTHEAST FACING SLOPES AROUND RED LODGE MOUNTAIN
  WITH LIGHTER AMOUNTS AROUND COOKE CITY.

* IMPACTS...HEAVY SNOW WILL DRAMATICALLY REDUCE VISIBILITIES AND
  MAKE OUTDOOR CONDITIONS DANGEROUS.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ041-056-065-066-161130-
/O.UPG.KBYZ.WS.A.0001.120116T0100Z-120117T0100Z/
/O.NEW.KBYZ.WS.W.0002.120115T2100Z-120117T0100Z/
NORTHERN SWEET GRASS-RED LODGE FOOTHILLS-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...BIG TIMBER...MELVILLE...RED LODGE...
ROBERTS...ROSCOE...LIVINGSTON...SPRINGDALE...FISHTAIL...MCLEOD...
NYE
419 AM MST SUN JAN 15 2012

...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO
6 PM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES ARE EXPECTED
  WITH THE HEAVIER AMOUNTS ALONG NORTH AND NORTHEAST FACING
  SLOPES.

* IMPACTS...HEAVY SNOW WILL DRAMATICALLY REDUCE VISIBILITIES. THIS
  COMBINED WITH ROADS BECOMING SNOW PACKED WILL MAKE TRAVEL VERY
  DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ040-161130-
/O.UPG.KBYZ.WS.A.0001.120116T0100Z-120117T0100Z/
/O.NEW.KBYZ.WW.Y.0002.120115T2100Z-120117T0100Z/
NORTHERN PARK-
INCLUDING THE LOCATIONS OF...CLYDE PARK...WILSALL
419 AM MST SUN JAN 15 2012

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 3 TO 6 INCHES ARE EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL DRAMATICALLY
  REDUCE VISIBILITIES. THIS COMBINED WITH ROADS BECOMING SNOW
  PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ039-161130-
/O.UPG.KBYZ.WS.A.0001.120116T0100Z-120117T0100Z/
/O.NEW.KBYZ.WW.Y.0002.120116T0100Z-120117T0100Z/
EASTERN CARBON-
INCLUDING THE LOCATIONS OF...BRIDGER...JOLIET...FROMBERG...
BELFRY...WARREN
419 AM MST SUN JAN 15 2012

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MST MONDAY. 

* TIMING...SNOW WILL DEVELOP EARLY THIS EVENING. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL DRAMATICALLY
  REDUCE VISIBILITIES. THIS COMBINED WITH ROADS BECOMING SNOW
  PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ038-WYZ099-161130-
/O.UPG.KBYZ.WS.A.0001.120116T0100Z-120117T0100Z/
/O.NEW.KBYZ.WW.Y.0002.120116T0100Z-120117T0100Z/
SOUTHERN BIG HORN-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...LODGE GRASS...PRYOR...WYOLA...
FORT SMITH...SHERIDAN...DAYTON...RANCHESTER...BIG HORN...STORY...
CLEARMONT
419 AM MST SUN JAN 15 2012

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP EARLY THIS EVENING. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 4 TO 6 INCHES ARE EXPECTED.
  THE HEAVIEST AMOUNTS WILL BE OVER NORTH FACING SLOPES AND AREAS
  CLOSEST TO THE FOOTHILLS.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL DRAMATICALLY
  REDUCE VISIBILITIES. THIS COMBINED WITH ROADS BECOMING SNOW
  PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

WYZ098-161130-
/O.UPG.KBYZ.WS.A.0001.120116T0100Z-120117T0100Z/
/O.NEW.KBYZ.WW.Y.0002.120116T0100Z-120117T0100Z/
NORTHEAST BIG HORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...BURGESS JCT
419 AM MST SUN JAN 15 2012

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP EARLY THIS EVENING. THE SNOW WILL
  CONTINUE THROUGH MONDAY AND BE HEAVY AT TIMES. THE PERIOD OF
  HEAVIEST SNOW WILL BE TONIGHT AND EARLY MONDAY. THE SNOW WILL
  TAPER OFF MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES ARE EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL DRAMATICALLY
  REDUCE VISIBILITIES. THIS COMBINED WITH ROADS BECOMING SNOW
  PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ064-161130-
/O.NEW.KBYZ.WW.Y.0002.120115T2100Z-120117T0100Z/
PARADISE VALLEY-
INCLUDING THE LOCATIONS OF...EMIGRANT
419 AM MST SUN JAN 15 2012

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 3 TO 5 INCHES ARE EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL DRAMATICALLY
  REDUCE VISIBILITIES. THIS COMBINED WITH ROADS BECOMING SNOW
  PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ028-063-161130-
/O.NEW.KBYZ.WW.Y.0002.120115T2100Z-120117T0100Z/
SOUTHERN WHEATLAND-JUDITH GAP-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
JUDITH GAP
419 AM MST SUN JAN 15 2012

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP THIS AFTERNOON. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 4 INCHES ARE
  EXPECTED.

* IMPACTS...MODERATE SNOW WILL REDUCE VISIBILITIES. THIS COMBINED
  WITH ROADS BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ029-034-035-042-057-161130-
/O.NEW.KBYZ.WW.Y.0002.120116T0100Z-120117T0100Z/
MUSSELSHELL-NORTHERN STILLWATER-YELLOWSTONE-GOLDEN VALLEY-
NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...CUSTER...
BROADVIEW...RYEGATE...LAVINA...HARDIN...CROW AGENCY...BUSBY
419 AM MST SUN JAN 15 2012

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP EARLY THIS EVENING. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED.
  HEAVIER AMOUNTS ARE POSSIBLE OVER NORTH FACING SLOPES.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL DRAMATICALLY
  REDUCE VISIBILITIES. THIS COMBINED WITH ROADS BECOMING SNOW
  PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ058-161130-
/O.NEW.KBYZ.WW.Y.0002.120116T0100Z-120117T0100Z/
SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF...LAME DEER...ASHLAND...BIRNEY
419 AM MST SUN JAN 15 2012

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 6 PM THIS
EVENING TO 6 PM MST MONDAY.

* TIMING...SNOW WILL DEVELOP EARLY THIS EVENING. THE SNOW WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 5 INCHES ARE EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL DRAMATICALLY
  REDUCE VISIBILITIES. THIS COMBINED WITH ROADS BECOMING SNOW
  PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
5 follow-up statements
464 
WWUS45 KBYZ 152157
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
257 PM MST SUN JAN 15 2012

.AN ARCTIC AIR MASS WILL CONTINUE TO MOVE INTO THE REGION OVERNIGHT. THE
VERY COLD AIR NEAR THE SURFACE AND PACIFIC MOISTURE STREAMING IN
FROM THE WEST WILL CREATE A PERIOD OF OVERRUNNING SNOWFALL TONIGHT INTO
MONDAY.

MTZ067-162200-
/O.CON.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
ABSAROKA/BEARTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF...COOKE CITY
257 PM MST SUN JAN 15 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST MONDAY...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN
EFFECT UNTIL 6 PM MST MONDAY. 

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS EVENING AND WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 12 TO 16 INCHES ARE 
  EXPECTED OVER NORTHEAST FACING SLOPES AROUND RED LODGE 
  MOUNTAIN WITH LIGHTER AMOUNTS AROUND COOKE CITY.

* IMPACTS...HEAVY SNOW WILL DRAMATICALLY REDUCE VISIBILITIES 
  AND MAKE OUTDOOR CONDITIONS DANGEROUS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ041-056-065-066-162200-
/O.CON.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
NORTHERN SWEET GRASS-RED LODGE FOOTHILLS-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...BIG TIMBER...MELVILLE...RED LODGE...
ROBERTS...ROSCOE...LIVINGSTON...SPRINGDALE...FISHTAIL...MCLEOD...
NYE
257 PM MST SUN JAN 15 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST MONDAY...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6 PM MST
MONDAY.

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS EVENING AND WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES ARE
  EXPECTED WITH THE HEAVIER AMOUNTS ALONG NORTH AND NORTHEAST 
  FACING SLOPES. 

* IMPACTS...HEAVY SNOW WILL DRAMATICALLY REDUCE VISIBILITIES.
  THIS COMBINED WITH ROADS BECOMING SNOW PACKED WILL MAKE 
  TRAVEL VERY DIFFICULT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ040-064-162200-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
NORTHERN PARK-PARADISE VALLEY-
INCLUDING THE LOCATIONS OF...CLYDE PARK...WILSALL...EMIGRANT
257 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MST MONDAY.

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS EVENING AND WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 3 TO 6 INCHES ARE
  EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL 
  DRAMATICALLY REDUCE VISIBILITIES. THIS COMBINED WITH ROADS 
  BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ028-063-162200-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
SOUTHERN WHEATLAND-JUDITH GAP-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
JUDITH GAP
257 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MST MONDAY.

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS EVENING AND WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 4 INCHES ARE 
  EXPECTED.

* IMPACTS...MODERATE SNOW WILL REDUCE VISIBILITIES. THIS 
  COMBINED WITH ROADS BECOMING SNOW PACKED WILL MAKE TRAVEL 
  DIFFICULT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ029-034-035-039-042-057-162200-
/O.CON.KBYZ.WW.Y.0002.120116T0100Z-120117T0100Z/
MUSSELSHELL-NORTHERN STILLWATER-YELLOWSTONE-EASTERN CARBON-
GOLDEN VALLEY-NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...CUSTER...
BROADVIEW...BRIDGER...JOLIET...FROMBERG...BELFRY...WARREN...
RYEGATE...LAVINA...HARDIN...CROW AGENCY...BUSBY
257 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT FROM 6 PM
THIS EVENING TO 6 PM MST MONDAY.

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS EVENING AND WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE TONIGHT AND EARLY
  MONDAY. THE SNOW WILL TAPER OFF MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 4 INCHES ARE
  EXPECTED. HEAVIER AMOUNTS ARE POSSIBLE OVER NORTH FACING 
  SLOPES.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL 
  DRAMATICALLY REDUCE VISIBILITIES. THIS COMBINED WITH ROADS 
  BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ038-058-WYZ099-162200-
/O.CON.KBYZ.WW.Y.0002.120116T0100Z-120117T0100Z/
SOUTHERN BIG HORN-SOUTHERN ROSEBUD-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...LODGE GRASS...PRYOR...WYOLA...
FORT SMITH...LAME DEER...ASHLAND...BIRNEY...SHERIDAN...DAYTON...
RANCHESTER...BIG HORN...STORY...CLEARMONT
257 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT FROM 6 PM
THIS EVENING TO 6 PM MST MONDAY.

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS EVENING AND WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE TONIGHT AND EARLY
  MONDAY. THE SNOW WILL TAPER OFF MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 5 INCHES ARE
  EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL 
  DRAMATICALLY REDUCE VISIBILITIES. THIS COMBINED WITH ROADS 
  BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

WYZ098-162200-
/O.CON.KBYZ.WW.Y.0002.120116T0100Z-120117T0100Z/
NORTHEAST BIG HORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...BURGESS JCT
257 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT FROM 6 PM
THIS EVENING TO 6 PM MST MONDAY.

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS EVENING AND WILL
  CONTINUE THROUGH MONDAY AND MAY BE HEAVY AT TIMES. THE PERIOD OF
  HEAVIEST SNOW WILL BE TONIGHT AND EARLY MONDAY. THE SNOW WILL
  TAPER OFF MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES ARE
  EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL 
  DRAMATICALLY REDUCE VISIBILITIES. THIS COMBINED WITH ROADS 
  BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
354 
WWUS45 KBYZ 160456
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
956 PM MST SUN JAN 15 2012

.AN ARCTIC AIR MASS WILL CONTINUE TO MOVE INTO THE REGION
OVERNIGHT. THE VERY COLD AIR NEAR THE SURFACE AND PACIFIC
MOISTURE STREAMING IN FROM THE WEST WILL CREATE A PERIOD OF
OVERRUNNING SNOWFALL TONIGHT INTO MONDAY.

MTZ067-170100-
/O.CON.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
ABSAROKA/BEARTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF...COOKE CITY
956 PM MST SUN JAN 15 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST MONDAY...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6
PM MST MONDAY.

* TIMING...SNOW WILL INCREASE IN INTENSITY LATE THIS EVENING AND
  WILL CONTINUE THROUGH MOST OF MONDAY. THE PERIOD OF HEAVIEST
  SNOW WILL BE TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF
  MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 8 TO 12 INCHES ARE
  EXPECTED OVER NORTHEAST FACING SLOPES AROUND RED LODGE MOUNTAIN
  WITH MUCH LIGHTER AMOUNTS AROUND COOKE CITY.

* IMPACTS...HEAVY SNOW WILL DRAMATICALLY REDUCE VISIBILITIES 
  AND MAKE OUTDOOR CONDITIONS DANGEROUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ041-056-065-066-170100-
/O.CON.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
NORTHERN SWEET GRASS-RED LODGE FOOTHILLS-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...BIG TIMBER...MELVILLE...RED LODGE...
ROBERTS...ROSCOE...LIVINGSTON...SPRINGDALE...FISHTAIL...MCLEOD...
NYE
956 PM MST SUN JAN 15 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST MONDAY...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6
PM MST MONDAY.

* TIMING...UP TO 3 INCHES OF SNOW HAS FALLEN IN THE FOOTHILLS FROM
  BIG TIMBER TO RED LODGE THROUGH THE EARLY EVENING. SNOW WILL
  CONTINUE INTO MONDAY MORNING BEFORE TAPERING OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED
  WITH HEAVIER AMOUNTS POSSIBLE ALONG STEEP NORTH AND NORTHEAST
  FACING SLOPES.

* IMPACTS...SNOW WILL REDUCE VISIBILITY AT TIMES. THIS COMBINED
  WITH SNOW PACKED AND SLICK ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ040-064-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
NORTHERN PARK-PARADISE VALLEY-
INCLUDING THE LOCATIONS OF...CLYDE PARK...WILSALL...EMIGRANT
956 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MST MONDAY.

* TIMING...SNOW WILL CONTINUE OVERNIGHT AND INTO EARLY MONDAY. THE
  SNOW WILL TAPER OFF MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 5 INCHES ARE
  EXPECTED.

* IMPACTS...MODERATE SNOW WILL REDUCE VISIBILITIES. THIS COMBINED
  WITH ROADS BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ028-063-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
SOUTHERN WHEATLAND-JUDITH GAP-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
JUDITH GAP
956 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MST MONDAY.

* TIMING...SNOW WILL CONTINUE THROUGH EARLY MONDAY. THE SNOW WILL
  TAPER OFF MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 1 TO 3 INCHES ARE
  EXPECTED.

* IMPACTS...SNOW WILL REDUCE VISIBILITIES. THIS COMBINED WITH
  ROADS BECOMING SLICK OR SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ029-034-035-039-042-057-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
MUSSELSHELL-NORTHERN STILLWATER-YELLOWSTONE-EASTERN CARBON-
GOLDEN VALLEY-NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...CUSTER...
BROADVIEW...BRIDGER...JOLIET...FROMBERG...BELFRY...WARREN...
RYEGATE...LAVINA...HARDIN...CROW AGENCY...BUSBY
956 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MST MONDAY.

* TIMING...SNOW WILL CONTINUE THROUGH MONDAY. THE PERIOD OF
  HEAVIEST SNOW WILL BE TONIGHT AND EARLY MONDAY. THE SNOW WILL
  TAPER OFF MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 5 INCHES ARE
  EXPECTED. HEAVIER AMOUNTS ARE POSSIBLE OVER NORTH FACING SLOPES.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL 
  DRAMATICALLY REDUCE VISIBILITIES. THIS COMBINED WITH ROADS 
  BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ038-058-WYZ099-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
SOUTHERN BIG HORN-SOUTHERN ROSEBUD-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...LODGE GRASS...PRYOR...WYOLA...
FORT SMITH...LAME DEER...ASHLAND...BIRNEY...SHERIDAN...DAYTON...
RANCHESTER...BIG HORN...STORY...CLEARMONT
956 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MST MONDAY.

* TIMING...SNOW WILL INCREASE IN INTENSITY TONIGHT AND WILL
  CONTINUE THROUGH MONDAY. THE PERIOD OF HEAVIEST SNOW WILL BE
  TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF MONDAY
  AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 2 TO 5 INCHES ARE 
  EXPECTED.

* IMPACTS...MODERATE SNOW WILL REDUCE VISIBILITIES. THIS COMBINED
  WITH ROADS BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

WYZ098-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
NORTHEAST BIG HORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...BURGESS JCT
956 PM MST SUN JAN 15 2012

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

A WINTER WEATHER ADVISORY FOR SNOW REMAINS IN EFFECT UNTIL 6 PM
MST MONDAY.

* TIMING...SNOW WILL INCREASE TNIGHT AND WILL CONTINUE THROUGH
  MONDAY AND MAY BE HEAVY AT TIMES. THE PERIOD OF HEAVIEST SNOW
  WILL BE LATE TONIGHT AND EARLY MONDAY. THE SNOW WILL TAPER OFF
  MONDAY AFTERNOON.

* SNOW ACCUMULATION...ACCUMULATIONS OF 6 TO 12 INCHES ARE 
  EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL 
  DRAMATICALLY REDUCE VISIBILITIES. THIS COMBINED WITH ROADS 
  BECOMING SNOW PACKED WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
807 
WWUS45 KBYZ 161114
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
414 AM MST MON JAN 16 2012

.PACIFIC MOISTURE WILL CONTINUE TO RIDE OVER AN ARCTIC AIR MASS
TO PRODUCE SNOWFALL OVER SOUTHERN MONTANA AND NORTHERN WYOMING.

MTZ028-063-161215-
/O.CAN.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
SOUTHERN WHEATLAND-JUDITH GAP-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
JUDITH GAP
414 AM MST MON JAN 16 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

LIGHT SNOW WILL CONTINUE EARLY THIS MORNING...THEN TAPER OFF FROM
MID MORNING ON. ADDITIONAL ACCUMULATIONS ARE EXPECTED TO BE LESS
THAN AN INCH. THEREFORE...THE WINTER WEATHER ADVISORY HAS BEEN
CANCELLED.

$$

MTZ067-170100-
/O.CON.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
ABSAROKA/BEARTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF...COOKE CITY
414 AM MST MON JAN 16 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6
PM MST THIS EVENING.

* TIMING...SNOW WILL CONTINUE THIS MORNING AND BE HEAVY AT TIMES.
  THE SNOW WILL TAPER OFF MONDAY AFTERNOON.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATIONS OF 3 TO 5 INCHES
  ARE EXPECTED OVER NORTHEAST FACING SLOPES AROUND RED LODGE
  MOUNTAIN WITH MUCH LIGHTER AMOUNTS AROUND COOKE CITY.

* IMPACTS...HEAVY SNOW WILL DRAMATICALLY REDUCE VISIBILITIES 
  AND MAKE OUTDOOR CONDITIONS DANGEROUS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ041-056-065-066-170100-
/O.CON.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
NORTHERN SWEET GRASS-RED LODGE FOOTHILLS-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...BIG TIMBER...MELVILLE...RED LODGE...
ROBERTS...ROSCOE...LIVINGSTON...SPRINGDALE...FISHTAIL...MCLEOD...
NYE
414 AM MST MON JAN 16 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6
PM MST THIS EVENING.

* TIMING...UP TO 5 INCHES OF SNOW HAS FALLEN IN THE FOOTHILLS FROM
  BIG TIMBER TO RED LODGE. SNOW WILL CONTINUE THIS MORNING AND BE
  HEAVY AT TIMES. THE SNOW WILL TAPER OFF THIS AFTERNOON.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION OF 2 TO 3 INCHES ARE
  EXPECTED.

* IMPACTS...SNOW WILL REDUCE VISIBILITY AT TIMES. THIS COMBINED 
  WITH SNOW PACKED AND SLICK ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ040-064-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
NORTHERN PARK-PARADISE VALLEY-
INCLUDING THE LOCATIONS OF...CLYDE PARK...WILSALL...EMIGRANT
414 AM MST MON JAN 16 2012

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

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

* TIMING...SNOW WILL CONTINUE THIS MORNING BEFORE TAPERING OFF
  THIS AFTERNOON.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION OF AROUND 2 INCHES
  CAN BE EXPECTED.

* IMPACTS...MODERATE SNOW WILL REDUCE VISIBILITIES. THIS COMBINED
  WITH SNOW PACKED ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ029-034-035-039-042-057-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
MUSSELSHELL-NORTHERN STILLWATER-YELLOWSTONE-EASTERN CARBON-
GOLDEN VALLEY-NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...CUSTER...
BROADVIEW...BRIDGER...JOLIET...FROMBERG...BELFRY...WARREN...
RYEGATE...LAVINA...HARDIN...CROW AGENCY...BUSBY
414 AM MST MON JAN 16 2012

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

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

* TIMING...SNOW WILL CONTINUE THIS MORNING BEFORE TAPERING OFF
  THIS AFTERNOON.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION OF AN INCH OR TWO
  CAN BE EXPECTED. THE HEAVIEST AMOUNTS WILL BE OVER NORTH FACING
  SLOPES.

* IMPACTS...SNOW WILL CAUSE REDUCED VISIBILITIES. THIS COMBINED
  WITH SLICK AND SNOW PACKED ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ038-058-WYZ099-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
SOUTHERN BIG HORN-SOUTHERN ROSEBUD-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...LODGE GRASS...PRYOR...WYOLA...
FORT SMITH...LAME DEER...ASHLAND...BIRNEY...SHERIDAN...DAYTON...
RANCHESTER...BIG HORN...STORY...CLEARMONT
414 AM MST MON JAN 16 2012

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

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

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS MORNING AND
  CONTINUE INTO THE AFTERNOON. THE SNOW WILL TAPER OFF LATE THIS
  AFTERNOON.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION OF 2 TO 3 INCHES
  CAN BE EXPECTED.

* IMPACTS...SNOW WILL CAUSE REDUCED VISIBILITIES. THIS COMBINED
  WITH SLICK AND SNOW PACKED ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

WYZ098-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
NORTHEAST BIG HORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...BURGESS JCT
414 AM MST MON JAN 16 2012

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

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

* TIMING...SNOW WILL INCREASE IN INTENSITY THIS MORNING AND BE
  HEAVY AT TIMES. THE SNOW WILL TAPER OFF THIS AFTERNOON.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION OF 3 TO 5 INCHES CAN
  BE EXPECTED.

* IMPACTS...MODERATE TO OCCASIONALLY HEAVY SNOW WILL DRAMATICALLY
  REDUCE VISIBILITIES. THIS COMBINED WITH SNOW PACKED ROADS WILL
  MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
995 
WWUS45 KBYZ 161738
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
1038 AM MST MON JAN 16 2012

.PACIFIC MOISTURE WILL CONTINUE TO RIDE OVER AN ARCTIC AIR MASS
TO PRODUCE SNOWFALL OVER SOUTHERN MONTANA AND NORTHERN WYOMING.

MTZ067-170100-
/O.CON.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
ABSAROKA/BEARTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF...COOKE CITY
1038 AM MST MON JAN 16 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6 PM
MST THIS EVENING.

* CURRENT CONDITIONS...AROUND 4 TO 6 INCHES OF SNOW HAS FALLEN
  WITH NORTHEAST WINDS AROUND 10 MPH CAUSING DRIFTING.  

* TIMING...SNOW WILL CONTINUE BEFORE TAPERING OFF THIS AFTERNOON.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATIONS AROUND 3 INCHES
  ARE EXPECTED OVER NORTHEAST FACING SLOPES AROUND RED LODGE
  MOUNTAIN WITH MUCH LIGHTER AMOUNTS AROUND COOKE CITY.

* IMPACTS...SNOW WILL REDUCE VISIBILITIES AND DRIFTING SNOW MAY
  SLOW TRAVEL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ041-056-065-066-170100-
/O.CON.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
NORTHERN SWEET GRASS-RED LODGE FOOTHILLS-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...BIG TIMBER...MELVILLE...RED LODGE...
ROBERTS...ROSCOE...LIVINGSTON...SPRINGDALE...FISHTAIL...MCLEOD...
NYE
1038 AM MST MON JAN 16 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 6
PM MST THIS EVENING.

* CURRENT CONDITIONS...2 TO 5 INCHES HAS BEEN REPORTED IN MANY
  LOCATIONS WITH SOME DRIFTING OF SNOW.

* TIMING...SNOW WILL CONTINUE THROUGH THE AFTERNOON BEFORE
  TAPERING OFF THIS EVENING. 

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION AROUND 2 INCHES CAN
  BE EXPECTED.

* IMPACTS...SNOW WILL REDUCE VISIBILITY AT TIMES. THIS COMBINED 
  WITH SNOW PACKED AND SLICK ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. THIS WILL MAKE TRAVEL VERY DANGEROUS.

&&

$$

MTZ040-064-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
NORTHERN PARK-PARADISE VALLEY-
INCLUDING THE LOCATIONS OF...CLYDE PARK...WILSALL...EMIGRANT
1038 AM MST MON JAN 16 2012

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

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

* CURRENT CONDITIONS...1 TO 3 INCHES OF SNOW HAS FALLEN.

* TIMING...SNOW WILL CONTINUE BEFORE TAPERING OFF THIS EVENING.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION OF 1 TO 2 INCHES
  CAN BE EXPECTED.

* IMPACTS...SNOW PACKED ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ029-034-035-039-042-057-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
MUSSELSHELL-NORTHERN STILLWATER-YELLOWSTONE-EASTERN CARBON-
GOLDEN VALLEY-NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...CUSTER...
BROADVIEW...BRIDGER...JOLIET...FROMBERG...BELFRY...WARREN...
RYEGATE...LAVINA...HARDIN...CROW AGENCY...BUSBY
1038 AM MST MON JAN 16 2012

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

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

* CURRENT CONDITIONS...1 TO 2 INCHES OF SNOW HAS FALLEN WITH
  NORTHEAST WINDS AROUND 10 MPH CAUSING SOME DRIFTING. 

* TIMING...SNOW WILL CONTINUE BEFORE TAPERING OFF THIS EVENING.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION OF AN INCH OR TWO
  CAN BE EXPECTED. 

* IMPACTS...EXPECT DIFFICULT TRAVEL CONDITIONS IN AREAS WHERE
  ROADS ARE SNOWPACKED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

MTZ038-058-WYZ099-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
SOUTHERN BIG HORN-SOUTHERN ROSEBUD-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...LODGE GRASS...PRYOR...WYOLA...
FORT SMITH...LAME DEER...ASHLAND...BIRNEY...SHERIDAN...DAYTON...
RANCHESTER...BIG HORN...STORY...CLEARMONT
1038 AM MST MON JAN 16 2012

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

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

* CURRENT CONDITIONS...1 TO 3 INCHES OF SNOW HAS FALLEN WITH
  PERIODS OF MODERATE SNOW CONTINUING. NORTHERLY WINDS OF 10 TO 15
  MPH ARE CAUSING AREAS OF DRIFTING SNOW.

* TIMING...SNOW WILL CONTINUE BEFORE TAPERING OFF THIS EVENING.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION AROUND 2 INCHES CAN
  BE EXPECTED.

* IMPACTS...SNOW WILL CAUSE REDUCED VISIBILITIES. THIS COMBINED 
  WITH SLICK AND SNOW PACKED ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

WYZ098-170100-
/O.CON.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
NORTHEAST BIG HORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...BURGESS JCT
1038 AM MST MON JAN 16 2012

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

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

*  CURRENT CONDITIONS...1 TO 3 INCHES OF SNOW HAS FALLEN WITH SNOW
   CONTINUING TO FALL AT BURGESS JUNCTION.

* TIMING...SNOW WILL CONTINUE BEFORE TAPERING OFF THIS AFTERNOON.

* SNOW ACCUMULATION...ADDITIONAL ACCUMULATION OF 2 TO 3 INCHES
  CAN BE EXPECTED.

* IMPACTS...SNOW WILL REDUCE VISIBILITIES. THIS COMBINED WITH
  SNOW PACKED ROADS WILL MAKE TRAVEL DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY CAN BE ISSUED FOR A VARIETY OF WINTER
WEATHER CONDITIONS SUCH AS LIGHT SNOW...BLOWING SNOW...SLEET...
FREEZING RAIN...AND EXTREME WIND CHILLS.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
032 
WWUS45 KBYZ 162151
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
251 PM MST MON JAN 16 2012


MTZ041-056-065>067-162300-
/O.CAN.KBYZ.WS.W.0002.000000T0000Z-120117T0100Z/
NORTHERN SWEET GRASS-RED LODGE FOOTHILLS-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF...BIG TIMBER...MELVILLE...RED LODGE...
ROBERTS...ROSCOE...LIVINGSTON...SPRINGDALE...FISHTAIL...MCLEOD...
NYE...COOKE CITY
251 PM MST MON JAN 16 2012

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS CANCELLED THE WINTER
STORM WARNING. 

SNOW ACROSS THE AREA HAS ENDED. INCREASING WINDS LATER TONIGHT MAY
BRING SOME BLOWING AND DRIFTING OF SNOW.

$$

MTZ029-034-035-038>040-042-057-058-064-WYZ098-099-162300-
/O.CAN.KBYZ.WW.Y.0002.000000T0000Z-120117T0100Z/
MUSSELSHELL-NORTHERN STILLWATER-YELLOWSTONE-SOUTHERN BIG HORN-
EASTERN CARBON-NORTHERN PARK-GOLDEN VALLEY-NORTHERN BIG HORN-
SOUTHERN ROSEBUD-PARADISE VALLEY-NORTHEAST BIG HORN MOUNTAINS-
SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...CUSTER...
BROADVIEW...LODGE GRASS...PRYOR...WYOLA...FORT SMITH...BRIDGER...
JOLIET...FROMBERG...BELFRY...WARREN...CLYDE PARK...WILSALL...
RYEGATE...LAVINA...HARDIN...CROW AGENCY...BUSBY...LAME DEER...
ASHLAND...BIRNEY...EMIGRANT...BURGESS JCT...SHERIDAN...DAYTON...
RANCHESTER...BIG HORN...STORY...CLEARMONT
251 PM MST MON JAN 16 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS CANCELLED THE WINTER
WEATHER ADVISORY. 

SNOW ACROSS THE AREA HAS ENDED. INCREASING WINDS LATER TONIGHT MAY
BRING SOME BLOWING AND DRIFTING OF SNOW.

$$

HTTP://WEATHER.GOV/BILLINGS

What forecasters said that day

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

NWS Billings, MT wrote its last area forecast discussion before this winter storm warning went out at Jan 15, 3:57 AM MST, 22 minutes earlier.

Area forecast discussion, Jan 15, 3:57 AM MST, 22 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BILLINGS MT
357 AM MST SUN JAN 15 2012

.SHORT TERM...VALID FOR TDY AND MON...

SURFACE PRESSURE GRADIENT FROM IDAHO FALLS TO LEWISTOWN WAS
RELAXING AND WINDS AT LIVINGSTON WERE SLOWLY RETREATING. THIS
TREND WILL CONTINUE THROUGH THE MORNING HOURS AS AN ARCTIC
BOUNDARY APPROACHES. WILL CANCEL THE WIND ADVISORY AND TURN
ATTENTION TO THE DRAMATIC WEATHER CHANGE TO OCCUR TODAY AND
TONIGHT.

THE CHANGE WILL BE BROUGHT ABOUT BY AN ARCTIC COLD FRONT WHICH
HAS CROSSED THE NORTHERN MONTANA BORDER. THE FRONT SHOULD GET
INTO BILLINGS AROUND 10 AM. HIGHS TODAY WILL BE EARLY IN THE DAY
WITH STEADY TEMPERATURES EARLY AFTERNOON AND FALLING READINGS
FROM MID AFTERNOON ONWARD. HIGHS WILL BE TRICKY WITH TIMING THE
FRONT AND MORNING READINGS WHICH WERE STARTING OUT PRETTY MILD.
TEMPERATURES WILL FALL INTO THE TEENS OVER THE NORTHERN ZONES.
LOWS WILL DROP INTO THE SINGLE DIGITS TONIGHT AND HIGHS SHOULD BE
LIMITED TO SINGLE DIGITS FOR MOST LOCATIONS ON MONDAY. IT WILL BE
QUITE A CHANGE FROM WHAT HAS BEEN OCCURRING SO FAR THIS WINTER.

SNOW WILL DEVELOP BEHIND THE FRONT...WITH MOST OF THE SNOW
DEVELOPING LATE AFTERNOON TO EARLY EVENING. UPSLOPE FLOW WILL BE
QUITE STRONG AND THE DENDRITE GROWTH ZONE FAIRLY DEEP SO SEVERAL
INCHES OF ACCUMULATION CAN BE EXPECTED OVER WESTERN AND CENTRAL
ZONES. THE HEAVIEST AMOUNTS LOOK TO BE ALONG THE FOOTHILLS WITH
NORTH TO NORTHEAST FACING SLOPES EXPERIENCING GREATEST AMOUNTS.
THE GFS HAS BEEN CONSISTENT ON GETTING THE SNOW STARTED OVER THE
WESTERN FOOTHILLS AND THE NORTHWEST ZONES THIS AFTERNOON. THE
SNOW WILL CONTINUE TONIGHT AND MONDAY. SNOW WILL TAPER OFF MONDAY
AFTERNOON OVER WESTERN AND CENTRAL ZONES AS IT LINGERS OVER
SOUTHEAST ZONES AND NORTHERN WYOMING. WILL ISSUE A WINTER STORM
WARNING FOR THE FOOTHILLS FROM RED LODGE TO BIG TIMBER AND
LIVINGSTON. WILL ALSO ISSUE A WARNING FOR THE MOUNTAINS WITH THE
EMPHASIS ON THE NORTHEAST SLOPES AROUND RED LODGE MOUNTAIN. COOKE
CITY WILL NOT RECEIVE AS MUCH SNOW WITH THIS SYSTEM.

WILL ISSUE WINTER WEATHER ADVISORIES FOR THE REST OF THE CENTRAL
AND WESTERN ZONES. WILL ALSO INCLUDE THE BIG HORN MOUNTAINS AND
SHERIDAN COUNTY IN THE ADVISORIES. SHERIDAN WILL BE TRICKY AS THE
GFS PUSHES THE STRONGER ASCENT IN THERE TONIGHT WITH A DEEP
DENDRITIC LAYER. GUIDANCE HAS BEEN LIGHT ON SNOW AMOUNTS THERE
BUT THINK IT WAS LIKELY UNDER DONE. WANTED TO GET THE HIGHLIGHT
OUT THIS MORNING AND NOT SURE WARNING CRITERIA WILL BE MET...BUT
WILL BE CLOSE. WILL HAVE TO WATCH THIS AS MAY NEED TO UPGRADE TO
A WARNING. WILL KEEP A CLOSE EYE ON IT THERE AND HEDGE TOWARD A
HIGH END ADVISORY. WILL KEEP THE MOUNTAINS AT ADVISORY CRITERIA
TOO AS THIS DOES NOT APPEAR TO BE A GREAT PATTERN FOR HEAVY SNOW
THERE. THE SNOW WILL TAPER OFF MONDAY AFTERNOON. MODELS WERE NOW
POINTING TO THE ARCTIC LIFTING OFF THE SLOPES MONDAY NIGHT AND
ALLOWING SOME WIND TO DEVELOP AT LIVINGSTON. THIS MAY BE A
CONCERN WITH BLOWING SNOW IF THE TRENDS CONTINUE. TWH

.LONG TERM...VALID FOR TUE...WED...THU...FRI...SAT...

MODELS CONTINUE TO BE IN PRETTY GOOD AGREEMENT IN MOST RECENT
RUNS. ARCTIC AIRMASS REMAINS IN CONTROL ACROSS THE REGION TO
START THE PERIOD. THERE HAS BEEN SOME SHIFTS IN TIMING AND
STRENGTH OF THE AIRMASS...BUT HAVE OPTED TO HANG CLOSE TO
INHERITED FORECAST FOR THE TIME BEING...AS SHIFTS ARE SIGNIFICANT
DEPARTURE FROM PREVIOUS DAYS.

STRONG ISENTROPIC LIFT WILL PRODUCE PERIODS OF SNOW THROUGH ABOUT
THURSDAY. PRECIP CHANCES WILL TAPER OFF QUICKLY THURSDAY...AS THE
AIRMASS CLEARS EASTWARD...AS HEIGHTS BUILD SLIGHTLY IN ADVANCE OF
THE NEXT TROF. THIS TROF SEEMS TO IMPACT THE AREA LATE THIS WEEK
INTO THE WEEKEND...AS ARCTIC AIR MAKES ANOTHER PUSH TOWARD THE
REGION. COLD AIR DOES NOT APPEAR TO GET TOO DEEPLY INTO THE AREA
OVER THE WEEKEND AS IT WILL EARLY THIS WEEK. HAVE CONTINUED WITH
HIGH POPS TO START THE PERIOD...WITH ARCTIC...AS OVERRUNNING
POTENTIAL CONTINUES TO LOOK GOOD. POPS GENERALLY TAPER OFF TO
SLIGHTLY ABOVE CLIMO TYPE POPS AFTER THURSDAY. TEMPS LOOK TO BE
IN PRETTY GOOD SHAPE AS WELL...BUT WITH TIMING DIFFERENCES OF
PROGRESSION OF ARCTIC AIR OUT OF AND BACK INTO THE REGION...THE
SPREAD IS PRETTY SIGNIFICANT. HAVE KEPT MAINLY INHERITED
NUMBERS...WITH ONLY SLIGHT ADJUSTMENTS. AAG

&&

.AVIATION...

GUSTY SW SURFACE WINDS OVER KLVM...BIG TIMBER AND THE BEARTOOTH
FOOTHILLS WILL DROP OFF THIS MORNING AS A COLD FRONT PUSHES SE INTO
THE REGION. THE FRONT WILL SHIFT THE SURFACE WINDS TO NORTH AND
NORTHWEST AT 15 TO 25 KT ACROSS THE AREA. VFR CONDITIONS EARLY
THIS MORNING...WILL DECREASE TO MVFR FROM KBIL WEST BY THIS
AFTERNOON...UNDER LOWERING CIGS AND REDUCED VIS IN SNOW.
CONDITIONS ARE EXPECTED TO LOWER FURTHER TO IFR/LIFR RANGE AFTER
SUNSET TONIGHT AS SNOW SPREADS ACROSS ALL ROUTES. THE MOUNTAINS
WILL BECOME OBSCURED BY THIS AFTERNOON AND REMAINED OBSCURED
INTO MONDAY. AAG

&&

.PRELIMINARY POINT TEMP/POPS...

    TDY MON     TUE     WED     THU     FRI     SAT
-------------------------------------------------------
BIL 035 002/009 901/017 005/015 010/028 021/039 022/042
    5/S 9+/S    23/S    36/S    56/S    32/S    23/J
LVM 036 001/010 901/018 006/023 020/037 028/043 027/042
    6/S ++/S    24/S    56/S    56/S    43/S    44/W
HDN 036 003/010 902/019 003/016 008/029 018/036 018/044
    4/S 9+/S    23/S    36/S    56/S    32/S    23/J
MLS 033 903/008 905/015 903/009 003/021 012/028 012/038
    1/N 46/S    22/S    35/S    56/S    42/S    23/J
4BQ 035 001/010 903/017 003/015 009/028 017/037 018/043
    0/N 6+/S    22/S    25/S    55/S    32/S    23/J
BHK 033 903/007 907/014 904/007 002/020 010/027 009/035
    0/N 24/S    22/S    24/S    55/S    32/S    23/J
SHR 038 005/010 001/018 005/022 015/034 022/040 023/043
    2/S 9+/S    22/S    25/S    55/S    32/S    22/W

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM THIS AFTERNOON TO
      6 PM MST MONDAY FOR ZONES 28-40-63-64.
     WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6
      PM MST MONDAY FOR ZONES 29-34-35-38-39-42-57-58.
     WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 6
      PM MST MONDAY FOR ZONES 41-56-65>67.
WY...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6
      PM MST MONDAY FOR ZONES 98-99.

&&

WEATHER.GOV/BILLINGS
Hazardous weather outlook, Jan 14, 9:27 PM MST, 6 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
927 PM MST SAT JAN 14 2012

MTZ028>042-056>058-063>068-WYZ098-099-160430-
SOUTHERN WHEATLAND-MUSSELSHELL-TREASURE-NORTHERN ROSEBUD-CUSTER-
FALLON-NORTHERN STILLWATER-YELLOWSTONE-POWDER RIVER-CARTER-
SOUTHERN BIG HORN-EASTERN CARBON-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-RED LODGE FOOTHILLS-
NORTHERN BIG HORN-SOUTHERN ROSEBUD-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-ABSAROKA/BEARTOOTH MOUNTAINS-
CRAZY MOUNTAINS-NORTHEAST BIG HORN MOUNTAINS-SHERIDAN FOOTHILLS-
927 PM MST SAT JAN 14 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
MONTANA...SOUTH CENTRAL MONTANA...SOUTHEAST MONTANA AND NORTH
CENTRAL WYOMING.

.DAY ONE...TONIGHT

STRONG SOUTHWEST WINDS WILL CONTINUE FROM NYE TO LIVINGSTON
THROUGH THIS EVENING WITH GUSTS OVER 60 MPH. DANGEROUS CROSSWINDS
ARE EXPECTED ALONG INTERSTATE 90 FROM SPRINGDALE TO LIVINGSTON.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A SIGNIFICANT CHANGE IN THE WEATHER WILL TAKE PLACE ON SUNDAY AS
AN ARCTIC COLD FRONT MOVES ACROSS THE AREA. SNOW WILL DEVELOP
OVER THE AREA BY EARLY SUNDAY EVENING AND BECOME HEAVY AT TIMES
OVER THE FOOTHILLS AND ADJACENT MOUNTAINS. LESSER AMOUNTS ARE
EXPECTED OVER THE PLAINS. THE SNOW WILL TAPER OFF BY MONDAY
AFTERNOON. TEMPERATURES WILL FALL THROUGH THE DAY ON SUNDAY AND
HIGH TEMPERATURES ARE ONLY EXPECTED TO BE IN THE SINGLE DIGITS ON
MONDAY. ANOTHER GOOD CHANCE OF ACCUMULATING SNOW WILL BE POSSIBLE
TUESDAY NIGHT THROUGH WEDNESDAY NIGHT. PLEASE MONITOR THE LATEST
FORECASTS ON THIS DEVELOPING COLD AND SNOWY WEATHER PATTERN.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 15, 4:19 AM MSTWinter Weather AdvisoryBYZBig Horn, Golden Valley, Musselshell, Park, Rosebud, Stillwater and 1 more35 hr

Nearby

Winter Storm Warnings in Montana, 2012Every winter storm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.