Alert archive / Montana / Blizzard Warnings in 2016

Blizzard Warning 2, NWS Billings, MT

December 25, 20164 counties in Montana

NWS Billings, MT issued this blizzard warning at Dec 25, 2016, 11:56 AM MST for 4 counties in Montana. It was in force for 22 hr. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 25, 2016, 11:56 AM MST (18:56 UTC)
Expired
Dec 26, 2016, 9:53 AM MST
In force
22 hr
Issued by
NWS Billings, MT

Counties Carter County, MT, Custer County, MT, Fallon County, MT, Powder River County, MT

What was reported inside it

TimeReportWhereRemark
Dec 25, 5:16 PM MSTSNOW 4.5Ekalaka, MT
Dec 25, 6:00 PM MSTSNOW 310 Ne Moorhead, MT
Dec 25, 8:00 PM MSTHEAVY SNOW 6.47 Ssw Sonnette, MT
Dec 25, 9:43 PM MSTSNOW 4.5Plevna, MT
Dec 26, 10:00 AM MSTHEAVY SNOW 1222 E Ekalaka, MTSNOW DRIFTS APPROACHING 4 FEET.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Rapid City, SD (KRAP), launched 12:00Z, 6.9 hours before the alert went out and 263 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, Rapid City, SD at 12:00Z on 2016-12-25Temperature 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 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Rapid City, SD at 12:00Z on 2016-12-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 173 square meters per square second.1939587897117136Sfc1 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
485 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
173 m²/s²
0-3 km storm-relative helicity
273 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

320 
WWUS45 KBYZ 251856
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
1156 AM MST SUN DEC 25 2016

WYZ099-260700-
/O.UPG.KBYZ.WS.W.0010.000000T0000Z-161226T0700Z/
/O.NEW.KBYZ.BZ.W.0002.161225T1856Z-161226T0700Z/
SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...SHERIDAN...DAYTON...RANCHESTER...
BIG HORN...STORY...CLEARMONT
1156 AM MST SUN DEC 25 2016

...BLIZZARD WARNING IN EFFECT UNTIL MIDNIGHT MST TONIGHT...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT UNTIL MIDNIGHT MST TONIGHT. THIS
REPLACES THE WINTER STORM WARNING.

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA AND
  NORTH CENTRAL WYOMING VASTLY UNDERESTIMATES SNOWSTORM INTENSITY.
  US14 IN WYOMING AND US212 IN MONTANA IS NOT A GOOD OPTION WHEN
  INTERSTATE 90 CLOSES.

* IMPACTS...DANGEROUS TRAVEL DUE TO NEAR ZERO VISIBILITY AND
  BLOWING AND DRIFTING SNOW.

* TIMING...SNOW INCREASING TODAY AND PERSISTING THROUGH THIS 
  EVENING.

* TOTAL SNOW ACCUMULATION...5 TO 8 INCHES.

* VISIBILITY...LESS THAN ONE QUARTER MILE AT TIMES.

* WINDS...NORTHWEST WINDS 25 TO 35 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY AND CAUSE DRIFTS TO 2 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

MTZ032-033-036-037-261300-
/O.UPG.KBYZ.WS.W.0010.000000T0000Z-161226T1300Z/
/O.NEW.KBYZ.BZ.W.0002.161225T1856Z-161226T1300Z/
CUSTER-FALLON-POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
1156 AM MST SUN DEC 25 2016

...BLIZZARD WARNING IN EFFECT UNTIL 6 AM MST MONDAY...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A BLIZZARD
WARNING...WHICH IS IN EFFECT UNTIL 6 AM MST MONDAY. THE WINTER
STORM WARNING IS NO LONGER IN EFFECT. 

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA VASTLY
  UNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS AREA IS
  NOT AN ALTERNATIVE TO NORTHEAST WYOMING...IN PARTICULAR US212
  IS NOT A GOOD OPTION WHEN INTERSTATE 90 CLOSES.

* IMPACTS...TRAVEL BECOMING VERY DIFFICULT DUE TO SNOW PACKED 
  ROADS AND BLOWING AND DRIFTING.

* TIMING...SNOW INCREASING TODAY AND PERSISTING THROUGH TONIGHT.

* TOTAL SNOW ACCUMULATION...6 TO 10 INCHES.

* VISIBILITY...LESS THAN A QUARTER MILE AT TIMES.

* WINDS...NORTH WINDS INCREASING TO 30 TO 40 MPH WITH EVEN 
  STRONGER WINDS POSSIBLE TONIGHT. 

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY TO NEAR ZERO AND CAUSE DRIFTS OF 
  2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

MTZ031-038-058-260700-
/O.CON.KBYZ.WS.W.0010.000000T0000Z-161226T0700Z/
NORTHERN ROSEBUD-SOUTHERN BIG HORN-SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF...COLSTRIP...FORSYTH...INGOMAR...
ANGELA...LODGE GRASS...PRYOR...WYOLA...FORT SMITH...LAME DEER...
ASHLAND...BIRNEY
1156 AM MST SUN DEC 25 2016

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

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA VASTLY
  UNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS AREA MAY
  NOT BE A VIABLE ALTERNATIVE TO NORTHEAST WYOMING...IN PARTICULAR
  US212 IS NOT A GOOD OPTION WHEN INTERSTATE 90 CLOSES.

* IMPACTS...TRAVEL BECOMING DIFFICULT DUE TO SNOW PACKED ROADS 
  AND BLOWING AND DRIFTING SNOW.

* TIMING...SNOW INCREASING TODAY AND PERSISTING THROUGH THIS 
  EVENING.

* TOTAL SNOW ACCUMULATION...5 TO 8 INCHES.

* WINDS...NORTH WINDS INCREASING TO 25 TO 35 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY AND CAUSE DRIFTS TO 2 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MTZ029-030-035-057-WYZ098-260700-
/O.CON.KBYZ.WW.Y.0024.000000T0000Z-161226T0700Z/
MUSSELSHELL-TREASURE-YELLOWSTONE-NORTHERN BIG HORN-
NORTHEAST BIGHORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
HYSHAM...BIGHORN...BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...
CUSTER...BROADVIEW...HARDIN...CROW AGENCY...BUSBY...BURGESS JCT
1156 AM MST SUN DEC 25 2016

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

* IMPACTS...ROADS BECOMING SNOW COVERED AND DECREASED VISIBILITY 
  COMBINING TO MAKE TRAVEL DIFFICULT. 

* TIMING...SNOW INCREASING TODAY AND PERSISTING THROUGH THIS 
  EVENING.

* TOTAL SNOW ACCUMULATION...3 TO 6 INCHES WITH LOCALLY HIGHER 
  AMOUNTS NORTH FACING HILLS.

* WINDS...NORTH WINDS 10 TO 20 MPH CAUSING SOME BLOWING SNOW.

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.

&&

$$

MTZ028-034-039>042-056-063>066-260100-
/O.CON.KBYZ.WW.Y.0024.000000T0000Z-161226T0100Z/
SOUTHERN WHEATLAND-NORTHERN STILLWATER-EASTERN CARBON-
NORTHERN PARK-NORTHERN SWEET GRASS-GOLDEN VALLEY-
RED LODGE FOOTHILLS-JUDITH GAP-PARADISE VALLEY-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
BRIDGER...JOLIET...FROMBERG...BELFRY...WARREN...CLYDE PARK...
WILSALL...BIG TIMBER...MELVILLE...RYEGATE...LAVINA...RED LODGE...
ROBERTS...ROSCOE...JUDITH GAP...EMIGRANT...LIVINGSTON...
SPRINGDALE...FISHTAIL...MCLEOD...NYE
1156 AM MST SUN DEC 25 2016

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

* IMPACTS...ROADS BECOMING SNOW COVERED AND DECREASED VISIBILITY 
  COMBINING TO MAKE TRAVEL DIFFICULT. 

* TIMING...SNOW WILL PERSIST THROUGH THIS EVENING.

* TOTAL SNOW ACCUMULATION...2 TO 5 INCHES.

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
6 follow-up statements
805 
WWUS45 KBYZ 252003
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
103 PM MST SUN DEC 25 2016

MTZ028-034-039>042-056-063>066-252115-
/O.CAN.KBYZ.WW.Y.0024.000000T0000Z-161226T0100Z/
SOUTHERN WHEATLAND-NORTHERN STILLWATER-EASTERN CARBON-
NORTHERN PARK-NORTHERN SWEET GRASS-GOLDEN VALLEY-
RED LODGE FOOTHILLS-JUDITH GAP-PARADISE VALLEY-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-
103 PM MST SUN DEC 25 2016

...WINTER WEATHER ADVISORY IS CANCELLED...

SNOWFALL INTENSITY HAS DECREASED EARLY THIS AFTERNOON AND
ADDITIONAL ACCUMULATIONS WILL BE LESS THAN AN INCH. ALLOW EXTRA
TIME FOR TRAVEL AS ROADS MAY STILL BE SNOW COVERED AND WATCH FOR
STREETS WHERE ICE IS COVERED BY FRESH SNOW. 

$$

MTZ029-035-252115-
/O.CAN.KBYZ.WW.Y.0024.000000T0000Z-161226T0700Z/
MUSSELSHELL-YELLOWSTONE-
103 PM MST SUN DEC 25 2016

...WINTER WEATHER ADVISORY IS CANCELLED...

SNOWFALL INTENSITY HAS DECREASED EARLY THIS AFTERNOON AND
ADDITIONAL ACCUMULATIONS WILL BE LESS THAN AN INCH. ALLOW EXTRA
TIME FOR TRAVEL AS ROADS MAY STILL BE SNOW COVERED AND WATCH FOR
STREETS WHERE ICE IS COVERED BY FRESH SNOW. 


$$

MTZ032-033-036-037-261300-
/O.CON.KBYZ.BZ.W.0002.000000T0000Z-161226T1300Z/
CUSTER-FALLON-POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
103 PM MST SUN DEC 25 2016

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

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA 
  VASTLYUNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS 
  AREA IS NOT AN ALTERNATIVE TO NORTHEAST WYOMING...IN 
  PARTICULAR US212 IS NOT A GOOD OPTION WHEN INTERSTATE 90 
  CLOSES. 

* IMPACTS...TRAVEL BECOMING VERY DIFFICULT DUE TO SNOW PACKED 
  ROADS AND BLOWING AND DRIFTING.

* TIMING...SNOW...HEAVY AT TIMES PERSISTING THROUGH TONIGHT.

* TOTAL SNOW ACCUMULATION...6 TO 10 INCHES.

* VISIBILITY...LESS THAN A QUARTER MILE AT TIMES.

* WINDS...NORTH WINDS INCREASING TO 30 TO 40 MPH WITH EVEN 
  STRONGER WINDS POSSIBLE TONIGHT.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY TO NEAR ZERO AND CAUSE DRIFTS OF 
  2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

WYZ099-260700-
/O.CON.KBYZ.BZ.W.0002.000000T0000Z-161226T0700Z/
SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...SHERIDAN...DAYTON...RANCHESTER...
BIG HORN...STORY...CLEARMONT
103 PM MST SUN DEC 25 2016

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA AND 
  NORTH CENTRAL WYOMING VASTLY UNDERESTIMATES SNOWSTORM 
  INTENSITY. US14 IN WYOMING AND US212 IN MONTANA IS NOT A GOOD 
  OPTION WHEN INTERSTATE 90 CLOSES. 

* IMPACTS...DANGEROUS TRAVEL DUE TO NEAR ZERO VISIBILITY AND 
  BLOWING AND DRIFTING SNOW.

* TIMING...SNOW...HEAVY AT TIMES...PERSISTING THROUGH THIS
  EVENING.

* TOTAL SNOW ACCUMULATION...5 TO 8 INCHES.

* VISIBILITY...LESS THAN ONE QUARTER MILE AT TIMES.

* WINDS...NORTHWEST WINDS 25 TO 35 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY AND CAUSE DRIFTS TO 2 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

MTZ031-038-058-260700-
/O.CON.KBYZ.WS.W.0010.000000T0000Z-161226T0700Z/
NORTHERN ROSEBUD-SOUTHERN BIG HORN-SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF...COLSTRIP...FORSYTH...INGOMAR...
ANGELA...LODGE GRASS...PRYOR...WYOLA...FORT SMITH...LAME DEER...
ASHLAND...BIRNEY
103 PM MST SUN DEC 25 2016

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

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA 
  VASTLYUNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS 
  AREA MAY NOT BE A VIABLE ALTERNATIVE TO NORTHEAST WYOMING...IN 
  PARTICULAR US212 IS NOT A GOOD OPTION WHEN INTERSTATE 90 
  CLOSES. 

* IMPACTS...TRAVEL BECOMING DIFFICULT DUE TO SNOW PACKED ROADS 
  AND BLOWING AND DRIFTING SNOW.

* TIMING...SNOW...HEAVY AT TIMES...PERSISTING THROUGH THIS
  EVENING.

* TOTAL SNOW ACCUMULATION...5 TO 8 INCHES.

* WINDS...NORTH WINDS INCREASING TO 25 TO 35 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY AND CAUSE DRIFTS TO 2 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MTZ030-057-WYZ098-260700-
/O.CON.KBYZ.WW.Y.0024.000000T0000Z-161226T0700Z/
TREASURE-NORTHERN BIG HORN-NORTHEAST BIGHORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...HYSHAM...BIGHORN...HARDIN...
CROW AGENCY...BUSBY...BURGESS JCT
103 PM MST SUN DEC 25 2016

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

* IMPACTS...ROADS BECOMING SNOW COVERED AND DECREASED VISIBILITY 
  COMBINING TO MAKE TRAVEL DIFFICULT. 

* TIMING...SNOW INCREASING TODAY AND PERSISTING THROUGH THIS 
  EVENING.

* TOTAL SNOW ACCUMULATION...3 TO 6 INCHES WITH LOCALLY HIGHER 
  AMOUNTS NORTH FACING HILLS.

* WINDS...NORTH WINDS 10 TO 20 MPH CAUSING SOME BLOWING SNOW.

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
767 
WWUS45 KBYZ 260346
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
846 PM MST SUN DEC 25 2016

MTZ032-033-036-037-261300-
/O.CON.KBYZ.BZ.W.0002.000000T0000Z-161226T1300Z/
CUSTER-FALLON-POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
846 PM MST SUN DEC 25 2016

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

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA VASTLY
  UNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS AREA IS
  NOT AN ALTERNATIVE TO NORTHEAST WYOMING...IN PARTICULAR US 212
  IS NOT A GOOD OPTION WHEN INTERSTATE 90 CLOSES.

* IMPACTS...TRAVEL BECOMING VERY DIFFICULT DUE TO SNOW PACKED 
  ROADS AND BLOWING AND DRIFTING.

* TIMING...SNOW...HEAVY AT TIMES PERSISTING THROUGH TONIGHT.

* ADDITIONAL SNOW ACCUMULATION...4 TO 6 INCHES.

* VISIBILITY...LESS THAN A QUARTER MILE AT TIMES.

* WINDS...NORTHWEST WINDS 30 TO 50 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY TO NEAR ZERO AND CAUSE DRIFTS OF 
  2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

WYZ099-260700-
/O.CON.KBYZ.BZ.W.0002.000000T0000Z-161226T0700Z/
SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...SHERIDAN...DAYTON...RANCHESTER...
BIG HORN...STORY...CLEARMONT
846 PM MST SUN DEC 25 2016

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA AND 
  NORTH CENTRAL WYOMING VASTLY UNDERESTIMATES SNOWSTORM 
  INTENSITY. US14 IN WYOMING AND US212 IN MONTANA IS NOT A GOOD 
  OPTION WHEN INTERSTATE 90 CLOSES. 

* IMPACTS...DANGEROUS TRAVEL DUE TO NEAR ZERO VISIBILITY AND 
  BLOWING AND DRIFTING SNOW.

* TIMING...SNOW...HEAVY AT TIMES...PERSISTING THROUGH THIS EVENING.

* ADDITIONAL SNOW ACCUMULATION...1 TO 3 INCHES.

* VISIBILITY...LESS THAN ONE QUARTER MILE AT TIMES.

* WINDS...NORTHWEST WINDS 25 TO 35 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY AND CAUSE DRIFTS TO 2 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

MTZ031-038-058-260700-
/O.CON.KBYZ.WS.W.0010.000000T0000Z-161226T0700Z/
NORTHERN ROSEBUD-SOUTHERN BIG HORN-SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF...COLSTRIP...FORSYTH...INGOMAR...
ANGELA...LODGE GRASS...PRYOR...WYOLA...FORT SMITH...LAME DEER...
ASHLAND...BIRNEY
846 PM MST SUN DEC 25 2016

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

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA 
  VASTLY UNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS 
  AREA MAY NOT BE A VIABLE ALTERNATIVE TO NORTHEAST WYOMING...IN 
  PARTICULAR US212 IS NOT A GOOD OPTION WHEN INTERSTATE 90 
  CLOSES. 

* IMPACTS...TRAVEL BECOMING DIFFICULT DUE TO SNOW PACKED ROADS 
  AND BLOWING AND DRIFTING SNOW.

* TIMING...SNOW...HEAVY AT TIMES...PERSISTING THROUGH THIS 
  EVENING.

* ADDITIONAL SNOW ACCUMULATION...2 TO 4 INCHES.

* WINDS...NORTH WINDS 25 TO 35 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY AND CAUSE DRIFTS TO 2 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE. THIS WILL
MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MTZ030-057-WYZ098-260700-
/O.CON.KBYZ.WW.Y.0024.000000T0000Z-161226T0700Z/
TREASURE-NORTHERN BIG HORN-NORTHEAST BIGHORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...HYSHAM...BIGHORN...HARDIN...
CROW AGENCY...BUSBY...BURGESS JCT
846 PM MST SUN DEC 25 2016

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

* IMPACTS...ROADS BECOMING SNOW COVERED AND DECREASED VISIBILITY 
  COMBINING TO MAKE TRAVEL DIFFICULT. 

* TIMING...SNOW WILL PERSIST THROUGH THIS EVENING.

* ADDITIONAL SNOW ACCUMULATION...2 TO 3 INCHES.

* WINDS...NORTH WINDS 10 TO 25 MPH CAUSING SOME BLOWING SNOW.

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
496 
WWUS45 KBYZ 260609
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
1109 PM MST SUN DEC 25 2016

WYZ099-261800-
/O.CAN.KBYZ.BZ.W.0002.000000T0000Z-161226T0700Z/
/O.EXB.KBYZ.WW.Y.0024.000000T0000Z-161226T1800Z/
SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...SHERIDAN...DAYTON...RANCHESTER...
BIG HORN...STORY...CLEARMONT
1109 PM MST SUN DEC 25 2016

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 11 AM MST MONDAY.

* IMPACTS...SNOW COVERED ROADS AND DECREASED VISIBILITY COMBINING
  TO MAKE TRAVEL DIFFICULT.

* TIMING...SNOW WILL GRADUALLY DECREASE OVERNIGHT.

* ADDITIONAL SNOW ACCUMULATION...1 TO 3 INCHES.

* WINDS...NORTHWEST WINDS 10 TO 25 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE WINDS
  TO REDUCE VISIBILITY AND CAUSE DRIFTS OF 1 TO 2 FEET.

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.

&&

$$

MTZ031-038-058-261800-
/O.CAN.KBYZ.WS.W.0010.000000T0000Z-161226T0700Z/
/O.EXB.KBYZ.WW.Y.0024.000000T0000Z-161226T1800Z/
NORTHERN ROSEBUD-SOUTHERN BIG HORN-SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF...COLSTRIP...FORSYTH...INGOMAR...
ANGELA...LODGE GRASS...PRYOR...WYOLA...FORT SMITH...LAME DEER...
ASHLAND...BIRNEY
1109 PM MST SUN DEC 25 2016

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
UNTIL 11 AM MST MONDAY.

* IMPACTS...SNOW COVERED ROADS AND DECREASED VISIBILITY COMBINING
  TO MAKE TRAVEL DIFFICULT.

* TIMING...SNOW WILL GRADUALLY DECREASE OVERNIGHT.

* ADDITIONAL SNOW ACCUMULATION...2 TO 3 INCHES.

* WINDS...NORTH WINDS 15 TO 30 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE WINDS
  TO REDUCE VISIBILITY AND CAUSE DRIFTS OF 1 TO 3 FEET.

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.

&&

$$

MTZ032-033-036-037-261300-
/O.CON.KBYZ.BZ.W.0002.000000T0000Z-161226T1300Z/
CUSTER-FALLON-POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
1109 PM MST SUN DEC 25 2016

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

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA 
  VASTLY UNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS 
  AREA IS NOT AN ALTERNATIVE TO NORTHEAST WYOMING...IN 
  PARTICULAR US 212 IS NOT A GOOD OPTION WHEN INTERSTATE 90 
  CLOSES. 

* IMPACTS...VERY DIFFICULT TRAVEL DUE TO SNOW PACKED ROADS AND
  BLOWING AND DRIFTING SNOW.

* TIMING...SNOW...HEAVY AT TIMES PERSISTING THROUGH TONIGHT.

* ADDITIONAL SNOW ACCUMULATION...3 TO 5 INCHES.

* VISIBILITY...LESS THAN A QUARTER MILE AT TIMES.

* WINDS...NORTHWEST WINDS 30 TO 50 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY TO NEAR ZERO AND CAUSE DRIFTS OF 
  2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

MTZ030-057-WYZ098-261800-
/O.EXT.KBYZ.WW.Y.0024.000000T0000Z-161226T1800Z/
TREASURE-NORTHERN BIG HORN-NORTHEAST BIGHORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...HYSHAM...BIGHORN...HARDIN...
CROW AGENCY...BUSBY...BURGESS JCT
1109 PM MST SUN DEC 25 2016

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

THE WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW IS NOW IN
EFFECT UNTIL 11 AM MST MONDAY.

* IMPACTS...SNOW COVERED ROADS AND DECREASED VISIBILITY COMBINING
  TO MAKE TRAVEL DIFFICULT.

* TIMING...SNOW WILL GRADUALLY DECREASE OVERNIGHT.

* ADDITIONAL SNOW ACCUMULATION...1 TO 3 INCHES.

* WINDS...NORTH WINDS 10 TO 25 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE WINDS
  TO REDUCE VISIBILITY AND CAUSE DRIFTS OF 1 TO 2 FEET.

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
242 
WWUS45 KBYZ 261023
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
323 AM MST MON DEC 26 2016

MTZ032-033-036-037-261800-
/O.EXT.KBYZ.BZ.W.0002.000000T0000Z-161226T1800Z/
CUSTER-FALLON-POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
323 AM MST MON DEC 26 2016

...BLIZZARD WARNING NOW IN EFFECT UNTIL 11 AM MST THIS MORNING...

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA 
  VASTLY UNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS 
  AREA IS NOT AN ALTERNATIVE TO NORTHEAST WYOMING...IN 
  PARTICULAR US 212 IS NOT A GOOD OPTION WHEN INTERSTATE 90 
  CLOSES. 

* IMPACTS...VERY DIFFICULT TRAVEL DUE TO SNOW PACKED ROADS AND
  BLOWING AND DRIFTING SNOW.

* TIMING...SNOW WILL GRADUALLY DECREASE THROUGH THE MORNING.

* ADDITIONAL SNOW ACCUMULATION...1 TO 3 INCHES.

* VISIBILITY...LESS THAN A QUARTER MILE AT TIMES.

* WINDS...NORTHWEST WINDS 30 TO 50 MPH GRADUALLY DECREASING
  THROUGH THE MORNING.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY TO NEAR ZERO AND CAUSE DRIFTS OF 
  2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

MTZ030-031-038-057-058-WYZ098-099-261800-
/O.CON.KBYZ.WW.Y.0024.000000T0000Z-161226T1800Z/
TREASURE-NORTHERN ROSEBUD-SOUTHERN BIG HORN-NORTHERN BIG HORN-
SOUTHERN ROSEBUD-NORTHEAST BIGHORN MOUNTAINS-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...HYSHAM...BIGHORN...COLSTRIP...
FORSYTH...INGOMAR...ANGELA...LODGE GRASS...PRYOR...WYOLA...
FORT SMITH...HARDIN...CROW AGENCY...BUSBY...LAME DEER...ASHLAND...
BIRNEY...BURGESS JCT...SHERIDAN...DAYTON...RANCHESTER...
BIG HORN...STORY...CLEARMONT
323 AM MST MON DEC 26 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* IMPACTS...SNOW COVERED ROADS AND DECREASED VISIBILITY 
  COMBINING TO MAKE TRAVEL DIFFICULT. 

* TIMING...SNOW WILL CONTINUE TO DECREASE THROUGH THE MORNING.

* ADDITIONAL SNOW ACCUMULATION...AN INCH OR LESS.

* WINDS...NORTHWEST WINDS 15 TO 30 MPH.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY AND CAUSE DRIFTS OF 1 TO 3 FEET. 

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
897 
WWUS45 KBYZ 261317
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
617 AM MST MON DEC 26 2016

MTZ030-031-038-057-058-WYZ098-099-261430-
/O.CAN.KBYZ.WW.Y.0024.000000T0000Z-161226T1800Z/
TREASURE-NORTHERN ROSEBUD-SOUTHERN BIG HORN-NORTHERN BIG HORN-
SOUTHERN ROSEBUD-NORTHEAST BIGHORN MOUNTAINS-SHERIDAN FOOTHILLS-
617 AM MST MON DEC 26 2016

...WINTER WEATHER ADVISORY IS CANCELLED...

SNOW AND WIND HAVE BEEN DECREASING ACROSS THE ADVISORY AREA THIS
MORNING. CONDITIONS WILL CONTINUE TO IMPROVE THROUGH THE MORNING.
 
$$

MTZ032-033-036-037-261800-
/O.CON.KBYZ.BZ.W.0002.000000T0000Z-161226T1800Z/
CUSTER-FALLON-POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
617 AM MST MON DEC 26 2016

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING...

* KNOW BEFORE YOU GO...RADAR COVERAGE IN SOUTHEAST MONTANA 
  VASTLY UNDERESTIMATES SNOWSTORM INTENSITY. TRAVEL THROUGH THIS 
  AREA IS NOT AN ALTERNATIVE TO NORTHEAST WYOMING...IN 
  PARTICULAR US 212 IS NOT A GOOD OPTION WHEN INTERSTATE 90 
  CLOSES. 

* IMPACTS...VERY DIFFICULT TRAVEL DUE TO SNOW PACKED ROADS AND 
  BLOWING AND DRIFTING SNOW.

* TIMING...SNOW WILL GRADUALLY DECREASE THROUGH THE MORNING.

* ADDITIONAL SNOW ACCUMULATION...1 TO 2 INCHES.

* VISIBILITY...LESS THAN A QUARTER MILE AT TIMES.

* WINDS...NORTHWEST WINDS 30 TO 50 MPH GRADUALLY DECREASING 
  THROUGH THE MORNING.

* BLOWING AND DRIFTING SNOW...FRESH SNOW COMBINING WITH THE 
  WINDS TO REDUCE VISIBILITY TO NEAR ZERO AND CAUSE DRIFTS OF 
  2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WARNING IS ISSUED WHEN SUSTAINED WIND SPEEDS OR
FREQUENT GUSTS OF OVER 35 MPH ARE EXPECTED WITH CONSIDERABLE
FALLING AND OR BLOWING AND DRIFTING SNOW.  VISIBILITIES WILL
BECOME POOR WITH WHITEOUT CONDITIONS AT TIMES.  THOSE VENTURING
OUTDOORS MAY BECOME LOST OR DISORIENTED SO PERSONS IN THE WARNING
AREA ARE ADVISED TO STAY INDOORS.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
218 
WWUS45 KBYZ 261653
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
953 AM MST MON DEC 26 2016

MTZ032-033-036-037-261800-
/O.CAN.KBYZ.BZ.W.0002.000000T0000Z-161226T1800Z/
CUSTER-FALLON-POWDER RIVER-CARTER-
953 AM MST MON DEC 26 2016

...BLIZZARD WARNING IS CANCELLED...

SNOW HAS ENDED ACROSS THE AREA AND WIND GUSTS HAVE DROPPED BELOW
35 TO 40 MPH...AND ARE EXPECTED TO CONTINUE TO SLOWLY DIMINISH.
THEREFORE...THE BLIZZARD WARNING HAS BEEN CANCELLED.

HOWEVER...TRAVEL IS STILL EXPECTED TO BE DIFFICULT ACROSS THE
AREA THROUGH THE DAY DUE TO DRIFTED OVER AND SNOW PACKED ROADWAYS. 
PEOPLE ARE URGED TO CHECK THE LATEST ROAD REPORTS BEFORE
TRAVELING. WIND CHILLS WILL REMAIN BELOW ZERO AS WELL SO PLEASE
DRESS APPROPRIATELY IF YOU NEED TO BE OUTDOORS. 

$$

HTTP://WEATHER.GOV/BILLINGS

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 Billings, MT wrote its last area forecast discussion before this blizzard warning went out at Dec 25, 9:51 AM MST, 2 hours 5 minutes earlier.

Area forecast discussion, Dec 25, 9:51 AM MST, 2 hours 5 minutes before
Area Forecast Discussion...Updated
National Weather Service Billings MT
951 AM MST Sun Dec 25 2016

.UPDATE...
Major winter storm exploding over South Dakota with moisture
wrapping around the north side of this system to bring snow to
southern Montana and north central Wyoming. Radars are showing
some quickly intensifying bands western and central sections so
rapid accumulations are becoming more likely. Further west snow is
hanging on per observations so not dropping winter weather
advisory yet. No updates to the forecast but will add a reminder
to the winter storm warnings that areas along US212 have very
poor radar coverage in Powder River and Carter county and it may
be seeing intense snowfall and it is not a viable option to I90 in
Wyoming where emergency travel only has been posted in sections.
borsum

&&

.SHORT TERM...valid for Tdy and Mon...

Approaching storm system is still on track to bring widespread
snowfall to the area today into Christmas night. Current water
vapor imagery shows digging upper trough over the intermountain
west with cyclogenesis starting to occur over the Great Basin.
Diffluence over the region along with some weak isentropic lift
has allowed periods of light snow to move over the area overnight
with snowfall amounts of generally an inch or less common. Expect
snow to increase over the area this morning as a closed low forms
over the Great Basin and lifts northeast through Colorado today and
into the Dakotas this evening. Moisture and areas of strong
isentropic lift along with upslope flow at the surface will
combine to bring periods of moderate to heavy snowfall today into
Christmas evening and night with snow ending from west to east.
Good dendritic growth layers will allow for snow ratios of 15 to
20:1 to develop today. Latest model runs have increased QPF a bit
across some of our central zones, and as a result, snow
accumulations have increased in these areas as well. Have gone
ahead and upgraded to Winter Storm Warnings for our Rosebud County
zones, southern Big Horn County zone, and the Sheridan Foothills
for snow and blowing snow. Total accumulations in these areas look
to be in the 5 to 8 inch range. Shifts today will need to see how
bands set up over the area to see if warnings need to be expanded
farther west. Increasing northerly winds, strongest across the
east will bring blowing and drifting snow to the area today and
into the overnight with whiteout conditions possible at times.

Snow will end from west to east this evening and into the
overnight as the low continues to lift north and east into
northern Minnesota. Total snow accumulations will range from 2 to
5 inches in the west increasing to 6 to 10 inches across the far
east when all is said and done.

Drier conditions are expected for Monday with only some light snow
showers possible. Lee side troughing begins to develop allowing
for gap flow winds and moderating temperatures. STP

.LONG TERM...valid for Tue...Wed...Thu...Fri...Sat...

No major changes to the going forecast. Main concern with the
extended period will be strong wind potential in the foothills on
Tuesday, spreading into the plains on Wednesday. Then a possible
Arctic intrusion for the weekend.

Zonal Pacific flow will keep winds elevated along the front range
on Tuesday with likely advisory type speeds of 55 to 65 mph in the
Livingston to Nye corridor and 45 to 55 mph from Big Timber to
Harlowton. Will continue to see a threat of blowing and drifting
snow into Tuesday night at least. A weak Alberta Clipper system
dropping southeast across the area on Wednesday will spread
stronger winds into the plains and can't rule out a few 60 mph
gusts in the afternoon across the area. Increased wind speeds to
account for this. Will be a chance for isolated to scattered snow
showers with this system as well. West-Northwest flow aloft will
persist Thursday into Friday with continued gusty west to
southwest winds and a good deal of cloud cover. Better consensus
on a push of colder air in from Canada Friday night into Saturday
then a true Arctic on Sunday/Monday. Chambers
&&

.AVIATION...

IFR to sub-IFR conditions will prevail across the area today with
light to moderate snow, and periods of heavy snow developing east
mid day. North to Northwest winds will increase through the day
with gusts of 25 to 50 kts, with strongest winds over the east
late this afternoon into tonight. Conditions will improve over
western areas tonight, but increasing west to southwest winds will
bring areas of blowing snow there by tomorrow morning. Chambers
&&

.PRELIMINARY POINT TEMP/POPS...

    Tdy Mon     Tue     Wed     Thu     Fri     Sat
-------------------------------------------------------
BIL 014 007/025 014/034 022/034 016/031 021/035 012/025
    9/S 41/U    01/N    22/J    00/U    12/J    32/J
LVM 015 009/026 022/032 021/031 017/032 025/036 015/026
    8/S 31/Q    02/J    42/J    11/N    13/J    32/J
HDN 013 901/025 002/036 018/034 008/031 015/035 008/025
    9/S 61/B    01/E    22/J    10/U    12/J    32/J
MLS 014 001/019 005/034 019/032 012/028 014/032 010/021
    +/S 92/S    01/E    21/N    10/U    12/J    32/J
4BQ 017 004/022 007/036 018/033 013/028 014/034 011/024
    +/S 92/S    01/B    11/N    10/U    11/B    32/J
BHK 018 002/014 005/031 018/030 012/027 013/030 009/021
    +/S +2/S    01/B    11/N    10/N    11/B    32/J
SHR 013 003/025 008/035 016/032 010/030 015/036 010/025
    8/S 41/B    00/B    22/J    10/U    12/J    32/J

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...Winter Weather Advisory in effect until 6 PM MST this evening
      FOR ZONES 28-34-39>42-56-63>66.
     Winter Weather Advisory in effect until midnight MST tonight
      FOR ZONES 29-30-35-57.
     Winter Storm Warning in effect until midnight MST tonight FOR
      ZONES 31-38-58.
     Winter Storm Warning in effect until 6 AM MST Monday FOR
      ZONES 32-33-36-37.
WY...Winter Weather Advisory in effect until midnight MST tonight
      FOR ZONE 98.
     Winter Storm Warning in effect until midnight MST tonight FOR
      ZONE 99.

&&

weather.gov/billings
Hazardous weather outlook, Dec 25, 3:27 AM MST, 8 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
327 AM MST SUN DEC 25 2016

MTZ028-041-065-066-261030-
SOUTHERN WHEATLAND-NORTHERN SWEET GRASS-LIVINGSTON AREA-
BEARTOOTH FOOTHILLS-
327 AM MST SUN DEC 25 2016

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

* POTENTIAL IMPACTS: DIFFICULT TRAVEL FOR HIGH-PROFILE VEHICLES
  ALONG INTERSTATE 90 FROM LIVINGSTON TO BIG TIMBER...AND ALONG
  HIGHWAY 191 FROM BIG TIMBER TO HARLOWTON. REDUCED VISIBILITY
  FROM AREAS OF BLOWING SNOW.

* STRONG WINDS: STRONG GUSTY WINDS WILL AFFECT THE LIVINGSTON,
  NYE, BIG TIMBER AND HARLOWTON AREAS AT VARIOUS TIMES FROM MONDAY
  NIGHT THROUGH WEDNESDAY NIGHT.

* WIND SPEEDS: GUSTS OF 50 TO 60 MPH...EXCEPT 60 TO 70 MPH IN
  LIVINGSTON AND NYE TUESDAY AND TUESDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HAZARDOUS WEATHER OUTLOOK IS ISSUED WHEN HAZARDOUS WEATHER COULD
IMPACT THE REGION WITHIN THE NEXT WEEK. BE SURE TO STAY TUNED FOR
FUTURE UPDATES AS LOCATIONS, TIMING, AND IMPACTS COULD CHANGE.
BEGIN PREPARATIONS TO MITIGATE ANY IMPACTS THAT COULD RESULT FROM
THE HAZARDOUS WEATHER.

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 25, 3:51 PM MSTHigh Wind WatchBYZPark, Stillwater, Sweet Grass10 hr

Nearby

Blizzard Warnings in Montana, 2016Blizzard Warnings in Wyoming, 2016Every blizzard warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.