Alert archive / Montana / Wind Chill Warnings in 2016

Wind Chill Warning 1, NWS Billings, MT

December 16, 201614 counties in Montana

NWS Billings, MT issued this wind chill warning at Dec 16, 2016, 2:59 PM MST for 14 counties in Montana. It took effect at Dec 16, 2016, 11:00 PM MST. It was in force for 12 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
Dec 16, 2016, 2:59 PM MST (21:59 UTC)
In effect from
Dec 16, 2016, 11:00 PM MST
Expired
Dec 17, 2016, 11:22 AM MST
In force
12 hr
Issued by
NWS Billings, MT

Counties Big Horn County, MT, Carbon County, MT, Carter County, MT, Custer County, MT, Fallon County, MT, Golden Valley County, MT, Musselshell County, MT, Park County, MT, Powder River County, MT, Rosebud County, MT, Stillwater County, MT, Sweet Grass County, MT, Treasure County, MT, Wheatland County, MT

The radar

The Billings radar (KBLX), 70 km from the middle of the area, began a volume at 21:58 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

Glasgow Intl Airport, MT (KGGW), launched 12:00Z, 10.0 hours before the alert went out and 269 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, Glasgow Intl Airport, MT at 12:00Z on 2016-12-16Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Glasgow Intl Airport, MT at 12:00Z on 2016-12-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939587897117136156175Sfc1 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
744 m above ground
0-6 km bulk shear
115 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

961 
WWUS45 KBYZ 162159
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
259 PM MST FRI DEC 16 2016

MTZ028-034-040>042-063>066-172200-
/O.NEW.KBYZ.WC.W.0001.161217T0600Z-161217T1900Z/
/O.NEW.KBYZ.BZ.A.0001.161218T0100Z-161219T1900Z/
/O.EXT.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
SOUTHERN WHEATLAND-NORTHERN STILLWATER-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
CLYDE PARK...WILSALL...BIG TIMBER...MELVILLE...RYEGATE...LAVINA...
JUDITH GAP...EMIGRANT...LIVINGSTON...SPRINGDALE...FISHTAIL...
MCLEOD...NYE
259 PM MST FRI DEC 16 2016

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...
...WIND CHILL WARNING IN EFFECT FROM 11 PM THIS EVENING TO NOON
MST SATURDAY...
...BLIZZARD WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY
MORNING...

THE WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW IS NOW
IN EFFECT UNTIL 11 PM MST THIS EVENING. THE NATIONAL WEATHER
SERVICE IN BILLINGS HAS ISSUED A WIND CHILL WARNING...WHICH IS IN
EFFECT FROM 11 PM THIS EVENING TO NOON MST SATURDAY. A BLIZZARD
WATCH HAS ALSO BEEN ISSUED. THIS BLIZZARD WATCH IS IN EFFECT FROM
SATURDAY EVENING THROUGH MONDAY MORNING. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS DUE TO HEAVY 
  ACCUMULATING SNOWFALL AND REDUCED VISIBILITY. EXPECT LOCALIZED 
  BLOWING SNOW AND BITTER WIND CHILLS. 

* TIMING...PERIODS OF SNOW WILL CONTINUE INTO THIS EVENING.
  DANGEROUS WIND CHILLS OVERNIGHT.
 
* ADDITIONAL SNOW ACCUMULATION...ONE TO TWO INCHES OF ADDITIONAL
  SNOW ACCUMULATION...HEAVIEST ALONG AND SOUTH OF I-90.

* WIND CHILL WARNING....WINDS 10 TO 15 MPH COMBINED WITH NEAR ZERO
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -30 AND -50
  DEGREES OVERNIGHT TONIGHT INTO SATURDAY MORNING.

* BLIZZARD WATCH...WEST WINDS GUSTING 40 TO 60 MPH WILL DEVELOP
  LATE IN THE DAY SATURDAY AND PERSIST THROUGH SUNDAY NIGHT. THESE
  STRONG WINDS COMBINED WITH 1 TO 2 FEET OF FRESH SNOW WILL LIKELY
  RESULT IN BLIZZARD CONDITIONS. SEVERE TRAVEL IMPACTS ARE
  POSSIBLE SATURDAY NIGHT INTO MONDAY MORNING...INCLUDING ALONG A
  LARGE PORTION OF I-90 FROM COLUMBUS TO THE WEST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO VENTURE
OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY... MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY
DANGEROUS.

&&

$$

MTZ039-056-171900-
/O.NEW.KBYZ.WC.W.0001.161217T0600Z-161217T1900Z/
/O.EXT.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
EASTERN CARBON-RED LODGE FOOTHILLS-
INCLUDING THE LOCATIONS OF...BRIDGER...JOLIET...FROMBERG...
BELFRY...WARREN...RED LODGE...ROBERTS...ROSCOE
259 PM MST FRI DEC 16 2016

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...
...WIND CHILL WARNING IN EFFECT FROM 11 PM THIS EVENING TO NOON
MST SATURDAY...

THE WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW IS NOW
IN EFFECT UNTIL 11 PM MST THIS EVENING. THE NATIONAL WEATHER
SERVICE IN BILLINGS HAS ISSUED A WIND CHILL WARNING...WHICH IS IN
EFFECT FROM 11 PM THIS EVENING TO NOON MST SATURDAY.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS DUE TO HEAVY 
  ACCUMULATING SNOWFALL AND REDUCED VISIBILITY. EXPECT 
  LOCALIZED BLOWING SNOW AND BITTER WIND CHILLS.

* TIMING...PERIODS OF SNOW WILL CONTINUE INTO THIS EVENING.
  DANGEROUS WIND CHILL VALUES OVERNIGHT. 

* ADDITIONAL SNOW ACCUMULATION...ONE TO TWO INCHES. 

* WIND CHILLS....WINDS 10 TO 15 MPH COMBINED WITH NEAR ZERO
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -30 AND -50
  DEGREES TONIGHT INTO SATURDAY MORNING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO VENTURE
OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY... MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ029-030-035-038-057-171900-
/O.NEW.KBYZ.WC.W.0001.161217T0600Z-161217T1900Z/
/O.CON.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
MUSSELSHELL-TREASURE-YELLOWSTONE-SOUTHERN BIG HORN-
NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
HYSHAM...BIGHORN...BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...
CUSTER...BROADVIEW...LODGE GRASS...PRYOR...WYOLA...FORT SMITH...
HARDIN...CROW AGENCY...BUSBY
259 PM MST FRI DEC 16 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
...WIND CHILL WARNING IN EFFECT FROM 11 PM THIS EVENING TO NOON
MST SATURDAY...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO NOON MST
SATURDAY. 

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS DUE TO HEAVY ACCUMULATING
  SNOWFALL AND REDUCED VISIBILITY. EXPECT LOCALIZED BLOWING SNOW
  AND BITTER WIND CHILLS.

* TIMING...PERIODS OF SNOW WILL CONTINUE INTO THIS EVENING.
  DANGEROUS WIND CHILL VALUES OVERNIGHT.

* ADDITIONAL SNOW ACCUMULATION...ONE TO TWO INCHES. HEAVIEST ALONG
  AND SOUTH OF I-90.

* WIND CHILLS....WINDS 10 TO 20 MPH COMBINED WITH NEAR ZERO
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -30 AND -50
  DEGREES OVERNIGHT.

* WEEKEND CONCERNS...WEST WINDS WILL INCREASE LATE
  SUNDAY...CAUSING SUBSTANTIAL BLOWING AND DRIFTING SNOW. THIS MAY
  MAKE TRAVEL DIFFICULT TO IMPOSSIBLE AT TIMES WITH ROADS DRIFTED
  OVER AND POOR VISIBILITY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO VENTURE
OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY... MAKING SURE
THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ067-068-170600-
/O.EXT.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
ABSAROKA/BEARTOOTH MOUNTAINS-CRAZY MOUNTAINS-
INCLUDING THE LOCATIONS OF...COOKE CITY
259 PM MST FRI DEC 16 2016

...WINTER STORM WARNING NOW IN EFFECT UNTIL 11 PM MST THIS
EVENING...

THE WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW IS NOW
IN EFFECT UNTIL 11 PM MST THIS EVENING.

* IMPACTS...DANGEROUS BACK COUNTRY TRAVEL CONDITIONS DUE TO HEAVY
  SNOWFALL AND BLOWING AND DRIFTING SNOW...AS WELL AS HIGH
  AVALANCHE DANGER.

* TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE INTO THIS
  EVENING...TAPERING OFF LATE.

* TOTAL SNOW ACCUMULATION...18 TO 24 INCHES.

* WINDS...WEST 25 TO 40 MPH ON EXPOSED SLOPES.

&&

$$

MTZ031-058-WYZ099-170600-
/O.CON.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
NORTHERN ROSEBUD-SOUTHERN ROSEBUD-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF...COLSTRIP...FORSYTH...INGOMAR...
ANGELA...LAME DEER...ASHLAND...BIRNEY...SHERIDAN...DAYTON...
RANCHESTER...BIG HORN...STORY...CLEARMONT
259 PM MST FRI DEC 16 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS DUE TO HEAVY ACCUMULATING
  SNOWFALL AND REDUCED VISIBILITY. EXPECT LOCALIZED BLOWING SNOW
  AND BITTER WIND CHILLS THROUGH LATE TONIGHT.

* TIMING...PERIODS OF SNOW WILL DECREASE THIS EVENING.

* ADDITIONAL SNOW ACCUMULATION...MANY AREAS WILL RECEIVE ANOTHER
  ONE TO TWO INCHES WITH LOCALLY HIGHER AMOUNTS POSSIBLE. 

* WIND CHILLS....WINDS 10 TO 20 MPH COMBINED WITH NEAR ZERO
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -20 AND -40
  DEGREES THROUGH THIS EVENING.

* WEEKEND CONCERNS...WEST WINDS WILL INCREASE SUNDAY...CAUSING
  SUBSTANTIAL BLOWING AND DRIFTING SNOW. THIS MAY MAKE TRAVEL
  DIFFICULT TO IMPOSSIBLE AT TIMES WITH ROADS DRIFTED OVER AND
  POOR VISIBILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SIGNIFICANT AMOUNT OF SNOW IS OCCURRING. THE THREAT OF DANGEROUS
WIND CHILLS WILL INCREASE TODAY AS WELL. TRAVEL WILL BE VERY
HAZARDOUS OR IMPOSSIBLE.

&&

$$

WYZ098-170600-
/O.CON.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
NORTHEAST BIGHORN MOUNTAINS-
INCLUDING THE LOCATIONS OF...BURGESS JCT
259 PM MST FRI DEC 16 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...

* IMPACTS...DANGEROUS BACK COUNTRY TRAVEL CONDITIONS DUE TO 
  HEAVY SNOWFALL AND BLOWING AND DRIFTING SNOW. THIS INCLUDES 
  TRAVEL ON HIGHWAY 14 THROUGH BURGESS JUNCTION. 

* TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THIS 
  EVENING. SNOW WILL DECREASE AFTER MIDNIGHT.

* TOTAL SNOW ACCUMULATION...10 TO 15 INCHES.

* WINDS...WEST 20 TO 30 MPH. EXPECT AREAS OF BLOWING AND 
  DRIFTING SNOW ON EXPOSED WESTERLY SLOPES.

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.

&&

$$

MTZ036-037-171200-
/O.CON.KBYZ.WS.W.0009.000000T0000Z-161217T1200Z/
POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
259 PM MST FRI DEC 16 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS DUE TO ACCUMULATING 
  SNOWFALL AND REDUCED VISIBILITY. EXPECT LOCALIZED BLOWING SNOW 
  AND BITTER WIND CHILLS. 

* TIMING...SNOW IS EXPECTED TO DECREASE LATE THIS EVENING.

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

* WIND CHILLS....WINDS 10 TO 20 MPH COMBINED WITH NEAR ZERO 
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -20 AND 
  -40 DEGREES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. DANGEROUS WIND CHILLS ARE ALSO LIKELY.
THIS WILL MAKE TRAVEL AND OUTDOOR ACTIVITY HAZARDOUS.

&&

$$

MTZ032-033-171200-
/O.CON.KBYZ.WW.Y.0022.000000T0000Z-161217T1200Z/
CUSTER-FALLON-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER
259 PM MST FRI DEC 16 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...

* IMPACTS...DIFFICULT TRAVEL CONDITIONS DUE TO ACCUMULATING 
  SNOWFALL AND REDUCED VISIBILITY. EXPECT LOCALIZED BLOWING SNOW 
  AND BITTER WIND CHILLS. 

* TIMING...SNOW WILL DECREASE THIS EVENING.

* TOTAL SNOW ACCUMULATION...3 TO 6 INCHES. LOCALLY HIGHER 
  AMOUNTS POSSIBLE. 

* WIND CHILLS....WINDS 10 TO 20 MPH COMBINED WITH NEAR ZERO
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -20 AND -40
  DEGREES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ACCUMULATING SNOW WITH POOR TRAVEL CONDITIONS AND DANGEROUS WIND
CHILLS IS EXPECTED. TRAVEL AND OUTDOOR ACTIVITY SHOULD BE
CURTAILED IF POSSIBLE.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
4 follow-up statements
175 
WWUS45 KBYZ 170333
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
833 PM MST FRI DEC 16 2016

MTZ028-034-040>042-063>066-180345-
/O.CAN.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
/O.CON.KBYZ.WC.W.0001.161217T0600Z-161217T1900Z/
/O.CON.KBYZ.BZ.A.0001.161218T0100Z-161219T1900Z/
SOUTHERN WHEATLAND-NORTHERN STILLWATER-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE... CLYDE
PARK...WILSALL...BIG TIMBER...MELVILLE...RYEGATE...LAVINA...
JUDITH GAP...EMIGRANT...LIVINGSTON...SPRINGDALE...FISHTAIL...
MCLEOD...NYE
833 PM MST FRI DEC 16 2016


...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST SATURDAY...
...BLIZZARD WATCH REMAINS IN EFFECT FROM SATURDAY EVENING THROUGH
MONDAY MORNING...

* WIND CHILL WARNING INFORMATION...EXPECT TEMPERATURES OF -15F TO
  -25F TONIGHT AND EARLY SATURDAY TO COMBINE WITH WINDS OF 10 TO
  15 MPH TO GENERATE WIND CHILLS OF 30 TO 50 BELOW ZERO.

* WIND CHILL IMPACTS...ANYONE OUTSIDE TONIGHT OR EARLY SATURDAY
  AND INADEQUATELY PREPARED COULD SEE EXPOSED FLESH FREEZE IN 10
  MINUTES. 

* BLIZZARD WATCH INFORMATION...WEST WINDS GUSTING 40 TO 60 MPH
  WILL DEVELOP LATE IN THE DAY SATURDAY AND PERSIST THROUGH SUNDAY
  NIGHT. THESE STRONG WINDS COMBINED WITH 1 TO 2 FEET OF FRESH
  SNOW WILL LIKELY RESULT IN BLIZZARD CONDITIONS. 

* SEVERE TRAVEL IMPACTS ARE POSSIBLE SATURDAY NIGHT INTO MONDAY
  MORNING...INCLUDING ALONG A LARGE PORTION OF I-90 FROM COLUMBUS
  TO THE WEST. THIS CAN INCLUDE SEVERE DRIFTING AND ZERO VISIBILITY.


&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY
DANGEROUS.

&&

$$

MTZ039-056-171900-
/O.CAN.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
/O.CON.KBYZ.WC.W.0001.161217T0600Z-161217T1900Z/
EASTERN CARBON-RED LODGE FOOTHILLS-
INCLUDING THE LOCATIONS OF...BRIDGER...JOLIET...FROMBERG...
BELFRY...WARREN...RED LODGE...ROBERTS...ROSCOE
833 PM MST FRI DEC 16 2016

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST SATURDAY...

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE
  EXPOSED FLESH FREEZE IN 10 MINUTES.

* TIMING...TONIGHT THROUGH SATURDAY MORNING.

* WIND CHILLS....WINDS 10 TO 15 MPH COMBINED WITH BELOW ZERO
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -30 AND -50
  DEGREES TONIGHT INTO SATURDAY MORNING.

* BLOWING SNOW CONCERNS...WEST WINDS WILL INCREASE SUNDAY...
  CAUSING SUBSTANTIAL BLOWING AND DRIFTING SNOW. THIS MAY MAKE
  TRAVEL DIFFICULT TO IMPOSSIBLE AT TIMES WITH ROADS DRIFTED OVER
  AND POOR VISIBILITY.

&&


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ029-030-035-038-057-171900-
/O.CAN.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
/O.CON.KBYZ.WC.W.0001.161217T0600Z-161217T1900Z/
MUSSELSHELL-TREASURE-YELLOWSTONE-SOUTHERN BIG HORN-
NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
HYSHAM...BIGHORN...BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...
CUSTER...BROADVIEW...LODGE GRASS...PRYOR...WYOLA...FORT SMITH...
HARDIN...CROW AGENCY...BUSBY
833 PM MST FRI DEC 16 2016

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST SATURDAY...

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE
  EXPOSED FLESH FREEZE IN 10 MINUTES.

* TIMING...TONIGHT THROUGH SATURDAY MORNING.

* WIND CHILLS....WINDS 10 TO 15 MPH COMBINED WITH WELL BELOW ZERO
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -30 AND -50
  DEGREES TONIGHT INTO SATURDAY MORNING.

* BLOWING SNOW CONCERNS...WEST WINDS WILL INCREASE SUNDAY...
  CAUSING SUBSTANTIAL BLOWING AND DRIFTING SNOW. THIS MAY MAKE
  TRAVEL DIFFICULT TO IMPOSSIBLE AT TIMES WITH ROADS DRIFTED OVER
  AND POOR VISIBILITY.

&&



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ031-058-067-068-WYZ098-099-170445-
/O.CAN.KBYZ.WS.W.0009.000000T0000Z-161217T0600Z/
NORTHERN ROSEBUD-SOUTHERN ROSEBUD-ABSAROKA/BEARTOOTH MOUNTAINS-
CRAZY MOUNTAINS-NORTHEAST BIGHORN MOUNTAINS-SHERIDAN FOOTHILLS-
833 PM MST FRI DEC 16 2016

...WINTER STORM WARNING IS CANCELLED...

HEAVY SNOW HAS ENDED ACROSS THE REGION. WINDS WILL INCREASE
SATURDAY NIGHT AND SUNDAY SO BACK COUNTRY TRAVELERS SHOULD BE
PREPARED FOR BLOWING AND DRIFTING SNOW. 

$$

MTZ036-037-171200-
/O.CON.KBYZ.WS.W.0009.000000T0000Z-161217T1200Z/
POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
833 PM MST FRI DEC 16 2016

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS DUE TO ACCUMULATING 
  SNOWFALL AND REDUCED VISIBILITY. EXPECT LOCALIZED BLOWING SNOW 
  AND BITTER WIND CHILLS. 

* TIMING...SNOW IS EXPECTED TO DECREASE LATE THIS EVENING.

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

* WIND CHILLS....WINDS 10 TO 20 MPH COMBINED WITH NEAR ZERO 
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -20 AND 
  - 40 DEGREES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS A SIGNIFICANT AMOUNT OF SNOW IS
EXPECTED OR OCCURRING. DANGEROUS WIND CHILLS ARE ALSO LIKELY.
THIS WILL MAKE TRAVEL AND OUTDOOR ACTIVITY HAZARDOUS.

&&

$$

MTZ032-033-171200-
/O.CON.KBYZ.WW.Y.0022.000000T0000Z-161217T1200Z/
CUSTER-FALLON-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER
833 PM MST FRI DEC 16 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST
SATURDAY...

* IMPACTS...DIFFICULT TRAVEL CONDITIONS DUE TO ACCUMULATING 
  SNOWFALL AND REDUCED VISIBILITY. EXPECT LOCALIZED BLOWING SNOW 
  AND BITTER WIND CHILLS. 

* TIMING...SNOW WILL DECREASE LATE THIS EVENING.

* TOTAL SNOW ACCUMULATION...3 TO 6 INCHES. LOCALLY HIGHER 
  AMOUNTS POSSIBLE.

* WIND CHILLS....WINDS 10 TO 20 MPH COMBINED WITH NEAR ZERO 
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -20 AND 
  -40 DEGREES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ACCUMULATING SNOW WITH POOR TRAVEL CONDITIONS AND DANGEROUS WIND
CHILLS IS EXPECTED. TRAVEL AND OUTDOOR ACTIVITY SHOULD BE
CURTAILED IF POSSIBLE.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
990 
WWUS45 KBYZ 171059
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
359 AM MST SAT DEC 17 2016

MTZ036-037-171900-
/O.CAN.KBYZ.WS.W.0009.000000T0000Z-161217T1200Z/
/O.EXA.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
POWDER RIVER-CARTER-
INCLUDING THE LOCATIONS OF...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER
359 AM MST SAT DEC 17 2016

...WIND CHILL WARNING IN EFFECT UNTIL NOON MST TODAY...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL NOON MST TODAY. 

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE 
  EXPOSED FLESH FREEZE IN 10 MINUTES.

* TIMING...COLDEST WIND CHILLS ARE EXPECTED THROUGH LATE MORNING. 

* WIND CHILLS....WINDS 10 TO 15 MPH WILL CAUSE WIND CHILLS TO
  RANGE BETWEEN -35 AND -45 DEGREES AT TIMES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ032-033-171900-
/O.CAN.KBYZ.WW.Y.0022.000000T0000Z-161217T1200Z/
/O.EXA.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
CUSTER-FALLON-
INCLUDING THE LOCATIONS OF...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER
359 AM MST SAT DEC 17 2016

...WIND CHILL WARNING IN EFFECT UNTIL NOON MST TODAY...
...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL NOON MST TODAY. 

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE 
  EXPOSED FLESH FREEZE IN 10 MINUTES.

* TIMING...COLDEST WIND CHILLS WILL OCCUR THROUGH LATE MORNING
  TODAY.

* WIND CHILLS....WINDS 10 TO 15 MPH WILL CAUSE WIND CHILLS TO
  RANGE BETWEEN -35 AND -45 DEGREES AT TIMES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ031-058-171900-
/O.EXA.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
NORTHERN ROSEBUD-SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF...COLSTRIP...FORSYTH...INGOMAR...
ANGELA...LAME DEER...ASHLAND...BIRNEY
359 AM MST SAT DEC 17 2016

...WIND CHILL WARNING IN EFFECT UNTIL NOON MST TODAY...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WIND CHILL
WARNING...WHICH IS IN EFFECT UNTIL NOON MST TODAY. 

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE 
  EXPOSED FLESH FREEZE IN 10 MINUTES. 

* TIMING...THE COLDEST WIND CHILLS WILL OCCUR THROUGH LATE THIS
  MORNING.

* WIND CHILLS....WINDS 10 TO 15 MPH TO RANGE BETWEEN -30 AND -45
  DEGREES THIS MORNING. 

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ028-034-040>042-063>066-181100-
/O.CON.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
/O.CON.KBYZ.BZ.A.0001.161218T0100Z-161219T1900Z/
SOUTHERN WHEATLAND-NORTHERN STILLWATER-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
CLYDE PARK...WILSALL...BIG TIMBER...MELVILLE...RYEGATE...LAVINA...
JUDITH GAP...EMIGRANT...LIVINGSTON...SPRINGDALE...FISHTAIL...
MCLEOD...NYE
359 AM MST SAT DEC 17 2016

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...
...BLIZZARD WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
MONDAY MORNING...

* WIND CHILL IMPACTS...ANYONE OUTSIDE THIS MORNING AND
  INADEQUATELY PREPARED COULD SEE EXPOSED FLESH FREEZE IN 10
  MINUTES.

* BLIZZARD WATCH INFORMATION...WEST WINDS GUSTING 40 TO 60 MPH
  WILL DEVELOP LATE TODAY AND PERSIST THROUGH AT LEAST MONDAY
  MORNING. THESE HIGH WINDS COMBINED WITH 1 TO 2 FEET OF FRESH
  SNOW WILL LIKELY RESULT IN BLIZZARD CONDITIONS.

* SEVERE TRAVEL IMPACTS ARE POSSIBLE SATURDAY NIGHT INTO MONDAY
  MORNING...INCLUDING ALONG A LARGE PORTION OF I-90 FROM COLUMBUS
  TO THE WEST. THIS CAN INCLUDE SEVERE DRIFTING AND ZERO
  VISIBILITY WITH POSSIBLE ROAD CLOSURES.  

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. 

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY
DANGEROUS OR IMPOSSIBLE.

&&

$$

MTZ039-056-171900-
/O.CON.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
EASTERN CARBON-RED LODGE FOOTHILLS-
INCLUDING THE LOCATIONS OF...BRIDGER...JOLIET...FROMBERG...
BELFRY...WARREN...RED LODGE...ROBERTS...ROSCOE
359 AM MST SAT DEC 17 2016

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE 
  EXPOSED FLESH FREEZE IN 10 MINUTES. 

* TIMING...COLDEST WIND CHILLS WILL OCCUR THROUGH THIS MORNING.

* WIND CHILLS....WINDS 10 TO 15 MPH COMBINED WITH BELOW ZERO
  TEMPERATURES WILL CAUSE WIND CHILLS TO RANGE BETWEEN -30 AND -45
  DEGREES TONIGHT INTO SATURDAY MORNING.

* BLOWING SNOW CONCERNS...WEST WINDS WILL INCREASE SUNDAY... 
  CAUSING SUBSTANTIAL BLOWING AND DRIFTING SNOW. THIS MAY MAKE 
  TRAVEL DIFFICULT TO IMPOSSIBLE AT TIMES WITH ROADS DRIFTED 
  OVER AND POOR VISIBILITY.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ029-030-035-038-057-171900-
/O.CON.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
MUSSELSHELL-TREASURE-YELLOWSTONE-SOUTHERN BIG HORN-
NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
HYSHAM...BIGHORN...BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...
CUSTER...BROADVIEW...LODGE GRASS...PRYOR...WYOLA...FORT SMITH...
HARDIN...CROW AGENCY...BUSBY
359 AM MST SAT DEC 17 2016

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE 
  EXPOSED FLESH FREEZE IN 10 MINUTES. 

* TIMING...COLDEST WIND CHILLS WILL OCCUR THROUGH THIS MORNING. 

* WIND CHILLS....WINDS 10 TO 15 MPH WILL CAUSE WIND CHILLS TO
  RANGE BETWEEN -30 AND -45 DEGREES THIS MORNING.

* BLOWING SNOW CONCERNS...WEST WINDS WILL INCREASE SUNDAY... 
  CAUSING SUBSTANTIAL BLOWING AND DRIFTING SNOW. THIS MAY MAKE 
  TRAVEL DIFFICULT TO IMPOSSIBLE AT TIMES WITH ROADS DRIFTED 
  OVER AND POOR VISIBILITY.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
861 
WWUS45 KBYZ 171550
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
850 AM MST SAT DEC 17 2016

MTZ028-034-040>042-063>066-181600-
/O.CAN.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
/O.NEW.KBYZ.WW.Y.0023.161217T1550Z-161218T0100Z/
/O.CON.KBYZ.BZ.A.0001.161218T0100Z-161219T1900Z/
SOUTHERN WHEATLAND-NORTHERN STILLWATER-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE... CLYDE
PARK...WILSALL...BIG TIMBER...MELVILLE...RYEGATE...LAVINA...
JUDITH GAP...EMIGRANT...LIVINGSTON...SPRINGDALE...FISHTAIL...
MCLEOD...NYE
850 AM MST SAT DEC 17 2016

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MST THIS
EVENING...
...BLIZZARD WATCH REMAINS IN EFFECT FROM 6 PM MST THIS EVENING
THROUGH MONDAY MORNING...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW AND BITTER WIND CHILL
VALUES...WHICH IS IN EFFECT UNTIL 6 PM MST THIS EVENING.

* WIND CHILL IMPACTS...ANYONE OUTSIDE THIS MORNING AND
  INADEQUATELY PREPARED COULD SEE EXPOSED FLESH FREEZE IN 10
  MINUTES WITH WIND CHILL VALUES OF -30 TO -50 DEGREES.

* BLOWING AND DRIFTING SNOW TODAY...WEST WINDS GUSTING 25 TO 40
  MPH WILL CREATE AREAS OF BLOWING SNOW TODAY WITH VISIBILITIES
  UNDER 2 MILES AT TIMES. DRIFTING SNOW MAY MAKE SOME RURAL ROADS
  IMPASSABLE BY LATER IN THE DAY TODAY.

* BLIZZARD WATCH INFORMATION...WEST WINDS GUSTING 40 TO 60 MPH ARE
  EXPECTED TO DEVELOP THIS EVENING AND PERSIST THROUGH AT LEAST
  MONDAY MORNING. THESE HIGH WINDS COMBINED WITH 1 TO 2 FEET OF
  FRESH SNOW WILL LIKELY RESULT IN BLIZZARD CONDITIONS. SNOW
  DRIFTS 4 TO 8 FEET DEEP APPEAR LIKELY GIVEN THESE CONDITIONS.

* SEVERE TRAVEL IMPACTS ARE POSSIBLE SATURDAY NIGHT INTO MONDAY 
  MORNING...INCLUDING ALONG A LARGE PORTION OF I-90 FROM 
  COLUMBUS TO THE WEST. THIS CAN INCLUDE SEVERE DRIFTING AND 
  ZERO VISIBILITY WITH POSSIBLE ROAD CLOSURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY
DANGEROUS OR IMPOSSIBLE.

&&


$$

MTZ029-035-039-180100-
/O.CAN.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
/O.NEW.KBYZ.WW.Y.0023.161217T1550Z-161218T0100Z/
MUSSELSHELL-YELLOWSTONE-EASTERN CARBON-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...CUSTER...
BROADVIEW...BRIDGER...JOLIET...FROMBERG...BELFRY...WARREN
850 AM MST SAT DEC 17 2016

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

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WINTER
WEATHER ADVISORY FOR BLOWING SNOW AND BITTER WIND CHILL VALUES...WHICH
IS IN EFFECT UNTIL 6 PM MST THIS EVENING.

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE
  EXPOSED FLESH FREEZE IN 10 MINUTES THIS MORNING WITH WIND CHILL
  VALUES OF -30 TO -50 DEGREES.

* BLOWING AND DRIFTING SNOW TODAY...WESTERLY WINDS GUSTING 20 TO
  30 MPH WILL CREATE AREAS OF BLOWING SNOW TODAY WITH
  VISIBILITIES UNDER 3 MILES AT TIMES. DRIFTING SNOW MAY MAKE SOME
  RURAL ROADS IMPASSABLE BY LATER IN THE DAY TODAY.

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.

&&

$$

MTZ056-171700-
/O.CAN.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
RED LODGE FOOTHILLS-
850 AM MST SAT DEC 17 2016

...WIND CHILL WARNING IS CANCELLED...

TEMPERATURES HAVE WARMED UP INTO THE SINGLE DIGITS BELOW ZERO
WITH LIGHT WINDS THIS MORNING SO THE WIND CHILL WARNING HAS BEEN
CANCELLED. CONTINUE TO DRESS WARMLY AND COVER ALL EXPOSED SKIN TO
PREVENT FROSTBITE AS TEMPERATURES REMAIN VERY COLD THROUGH THE DAY
TODAY.

$$

MTZ030-038-057-171900-
/O.CON.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
TREASURE-SOUTHERN BIG HORN-NORTHERN BIG HORN-
INCLUDING THE LOCATIONS OF...HYSHAM...BIGHORN...LODGE GRASS...
PRYOR...WYOLA...FORT SMITH...HARDIN...CROW AGENCY...BUSBY
850 AM MST SAT DEC 17 2016

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE 
  EXPOSED FLESH FREEZE IN 10 MINUTES. 

* TIMING...COLDEST WIND CHILLS WILL OCCUR THROUGH THIS MORNING.

* WIND CHILLS....WINDS 10 TO 15 MPH WILL CAUSE WIND CHILLS TO 
  RANGE BETWEEN -30 AND -45 DEGREES THIS MORNING.

* BLOWING SNOW CONCERNS...WEST WINDS WILL INCREASE SUNDAY... 
  CAUSING SUBSTANTIAL BLOWING AND DRIFTING SNOW. THIS MAY MAKE 
  TRAVEL DIFFICULT TO IMPOSSIBLE AT TIMES WITH ROADS DRIFTED 
  OVER AND POOR VISIBILITY.

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

MTZ031>033-036-037-058-171900-
/O.CON.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
NORTHERN ROSEBUD-CUSTER-FALLON-POWDER RIVER-CARTER-
SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF...COLSTRIP...FORSYTH...INGOMAR...
ANGELA...MILES CITY...ISMAY...VOLBORG...BAKER...PLEVNA...
WEBSTER...BROADUS...BIDDLE...POWDERVILLE...SONNETTE...EKALAKA...
ALZADA...HAMMOND...BELLTOWER...LAME DEER...ASHLAND...BIRNEY
850 AM MST SAT DEC 17 2016

...WIND CHILL WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY...

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE 
  EXPOSED FLESH FREEZE IN 10 MINUTES. 

* TIMING...THE COLDEST WIND CHILLS WILL OCCUR THROUGH LATE THIS 
  MORNING.

* WIND CHILLS....WINDS 10 TO 15 MPH TO RANGE BETWEEN -30 AND 
  -45 DEGREES THIS MORNING. 

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL WARNING IS ISSUED WHEN WINDS WILL COMBINE WITH COLD
TEMPERATURES TO CREATE DANGEROUSLY COLD CONDITIONS FOR EXPOSED
SKIN. THE WIND WILL MAKE IT FEEL LIKE IT IS 40 DEGREES BELOW ZERO
OR COLDER FOR A PERIOD OF SEVERAL HOURS. THOSE PLANNING TO
VENTURE OUTDOORS SHOULD USE COMMON SENSE AND DRESS WARMLY...
MAKING SURE THAT ALL EXPOSED SKIN IS COVERED.

&&

$$

HTTP://WEATHER.GOV/BILLINGS
023 
WWUS45 KBYZ 171822
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
1122 AM MST SAT DEC 17 2016

MTZ030>033-036>038-057-058-181830-
/O.CAN.KBYZ.WC.W.0001.000000T0000Z-161217T1900Z/
/O.NEW.KBYZ.WC.Y.0004.161217T1822Z-161218T1900Z/
TREASURE-NORTHERN ROSEBUD-CUSTER-FALLON-POWDER RIVER-CARTER-
SOUTHERN BIG HORN-NORTHERN BIG HORN-SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF...HYSHAM...BIGHORN...COLSTRIP...
FORSYTH...INGOMAR...ANGELA...MILES CITY...ISMAY...VOLBORG...
BAKER...PLEVNA...WEBSTER...BROADUS...BIDDLE...POWDERVILLE...
SONNETTE...EKALAKA...ALZADA...HAMMOND...BELLTOWER...LODGE GRASS...
PRYOR...WYOLA...FORT SMITH...HARDIN...CROW AGENCY...BUSBY...
LAME DEER...ASHLAND...BIRNEY
1122 AM MST SAT DEC 17 2016

...WIND CHILL ADVISORY IN EFFECT UNTIL NOON MST SUNDAY...

THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A WIND CHILL
ADVISORY...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. 

* IMPACTS...EXPOSED SKIN CAN FREEZE IN A SHORT AMOUNT OF TIME. 

* TIMING...THROUGH SUNDAY MORNING. 

* WIND CHILLS....BETWEEN -20 AND -40 DEGREES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND CHILL ADVISORY MEANS THAT VERY COLD AIR AND WINDS WILL
COMBINE TO GENERATE LOW WIND CHILLS. THIS WILL RESULT IN FROST
BITE AND LEAD TO HYPOTHERMIA IF PRECAUTIONS ARE NOT TAKEN. IF YOU
MUST VENTURE OUTDOORS...MAKE SURE YOU COVER ALL EXPOSED SKIN.

&&

$$

MTZ028-034-040>042-063>066-181830-
/O.CON.KBYZ.WW.Y.0023.000000T0000Z-161218T0100Z/
/O.CON.KBYZ.BZ.A.0001.161218T0100Z-161219T1900Z/
SOUTHERN WHEATLAND-NORTHERN STILLWATER-NORTHERN PARK-
NORTHERN SWEET GRASS-GOLDEN VALLEY-JUDITH GAP-PARADISE VALLEY-
LIVINGSTON AREA-BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF...HARLOWTON...TWODOT...SHAWMUT...
COLUMBUS...ABSAROKEE...PARK CITY...REED POINT...RAPELJE...
CLYDE PARK...WILSALL...BIG TIMBER...MELVILLE...RYEGATE...LAVINA...
JUDITH GAP...EMIGRANT...LIVINGSTON...SPRINGDALE...FISHTAIL...
MCLEOD...NYE
1122 AM MST SAT DEC 17 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS
EVENING...
...BLIZZARD WATCH REMAINS IN EFFECT FROM 6 PM MST THIS EVENING
THROUGH MONDAY MORNING...

* WIND CHILL IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED
  COULD SEE EXPOSED SKIN FREEZE IN A VERY SHORT TIME WITH WIND
  CHILL VALUES OF -20 TO -40 DEGREES.

* BLOWING AND DRIFTING SNOW TODAY...WEST WINDS GUSTING 25 TO 40 
  MPH WILL CREATE AREAS OF BLOWING SNOW TODAY WITH 
  VISIBILITIES UNDER 2 MILES AT TIMES. DRIFTING SNOW MAY MAKE 
  SOME RURAL ROADS IMPASSABLE BY LATER IN THE DAY TODAY.

* BLIZZARD WATCH INFORMATION...WEST WINDS GUSTING 40 TO 60 MPH
  ARE EXPECTED TO DEVELOP THIS EVENING AND PERSIST THROUGH AT 
  LEAST MONDAY MORNING. THESE HIGH WINDS COMBINED WITH 1 TO 2 
  FEET OF FRESH SNOW WILL LIKELY RESULT IN BLIZZARD 
  CONDITIONS. SNOW DRIFTS 4 TO 8 FEET DEEP APPEAR LIKELY GIVEN 
  THESE CONDITIONS.

* SEVERE TRAVEL IMPACTS ARE POSSIBLE SATURDAY NIGHT INTO MONDAY 
  MORNING...INCLUDING ALONG A LARGE PORTION OF I-90 FROM 
  COLUMBUS TO THE WEST. THIS CAN INCLUDE SEVERE DRIFTING AND 
  ZERO VISIBILITY WITH POSSIBLE ROAD CLOSURES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BLIZZARD WATCH MEANS THERE IS A POTENTIAL FOR FALLING AND/OR
BLOWING SNOW WITH STRONG WINDS AND EXTREMELY POOR VISIBILITIES.
THIS CAN LEAD TO WHITEOUT CONDITIONS AND MAKE TRAVEL VERY
DANGEROUS OR IMPOSSIBLE.

&&

$$

MTZ029-035-039-180100-
/O.CON.KBYZ.WW.Y.0023.000000T0000Z-161218T0100Z/
MUSSELSHELL-YELLOWSTONE-EASTERN CARBON-
INCLUDING THE LOCATIONS OF...ROUNDUP...MELSTONE...MUSSELSHELL...
BILLINGS...LAUREL...HUNTLEY...POMPEYS PILLAR...CUSTER...
BROADVIEW...BRIDGER...JOLIET...FROMBERG...BELFRY...WARREN
1122 AM MST SAT DEC 17 2016

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

* IMPACTS...ANYONE OUTSIDE AND INADEQUATELY PREPARED COULD SEE
  EXPOSED SKIN FREEZE IN A SHORT PERIOD OF TIME WITH WIND CHILL
  VALUES OF -20 TO -40 DEGREES.

* BLOWING AND DRIFTING SNOW TODAY...WESTERLY WINDS GUSTING 20 
  TO 30 MPH WILL CREATE AREAS OF BLOWING SNOW TODAY WITH 
  VISIBILITIES UNDER 3 MILES AT TIMES. DRIFTING SNOW MAY MAKE 
  SOME RURAL ROADS IMPASSABLE BY LATER IN THE DAY TODAY. 

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

What forecasters said that day

The local office's own words before this wind chill 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 wind chill warning went out at Dec 16, 9:40 AM MST, 5 hours 19 minutes earlier.

Area forecast discussion, Dec 16, 9:40 AM MST, 5 hours 19 minutes before
Area Forecast Discussion...Updated
National Weather Service Billings MT
940 AM MST Fri Dec 16 2016

.UPDATE...

Only minor adjustments mainly for current temperatures and wind
speeds this morning. Continue to see widespread light snow across
the area this morning with right rear quad of the jet and
baroclinic leaf of sub-tropical moisture moving over the cold
surface airmass in place. In addition, another arctic surge is
working into the area with temperatures already falling to below
zero from Harlowton to just north of Billings to just west of
Miles City. Expect falling temperatures through the afternoon with
3 pm temperatures below zero in many areas. Snow will taper off
this evening, but consistency of the snow will make accumulations
more difficult this afternoon as temperatures through the column
fall well below the dendritic growth zone. Still expect 2 to 4
inches of snow today but heaviest accumulations through early
afternoon. This afternoons forecast package will begin to
transition messaging in the highlites to cover onset of bitter
cold wind chill values and blowing snow/strong winds for the
weekend. May need a Blizzard Watch for western zones based on
anticipated wind gusts to 60 mph there with upwards of 20 inches
of fresh snow on the ground. Expecting wind chill values tonight
in the 40 to 50 below zero range over many areas as well. Chambers

.LONG TERM...valid for Sun...Mon...Tue...Wed...Thu...

Sunday will be a windy day across the western half of the region
with recent fresh snow creating a substantial blowing and drifting
snow threat. The blowing and drifting snow problem could be
greatest in the Livingston gap area where wind speeds are expected
to be highest.

The klondike chinook will continue Monday and Tuesday as strong
downslope gradients persist. The gradient over the plains does
appear to flatten on Tuesday...which should restrict the highest
winds to the gap areas. Temps will climb to the 20s and 30s on
Monday. Blowing and drifting snow should become less of an issue
through early portions of the work week...with snow crusting over
as temperatures moderate.

Pacific flow will bring some snow to mountains by Monday
evening...with some indication of stronger shortwaves crossing the
mountains...and bringing periods of snow showers across the CWA Monday
night through Thursday morning. Models are quite different in the
specifics for these waves...so used a general broadbrush of pops
at this time. Seasonal type temps are expected through through
the end of the period. RMS/BT

&&

.AVIATION...

Expect IFR with periods of LIFR possible in snow through this
evening. Conditions should improve from northwest to southeast
Friday night. Mountain obscurations will be widespread. RMS/BT

&&

.PRELIMINARY POINT TEMP/POPS...

    Tdy Sat     Sun     Mon     Tue     Wed     Thu
-------------------------------------------------------
BIL 005 924/901 903/019 013/033 023/039 027/035 017/033
    +/S 70/I    01/Q    01/Q    22/J    22/J    11/N
LVM 004 923/006 006/019 014/029 025/037 026/034 017/033
    +/S 60/Q    01/Q    12/Q    23/J    33/J    12/J
HDN 006 923/902 912/020 010/032 017/039 025/036 009/034
    +/S 70/I    00/B    01/B    22/J    22/J    11/B
MLS 006 922/906 914/020 014/032 021/038 023/035 014/031
    +/S 70/I    00/B    01/B    21/N    22/J    11/U
4BQ 007 921/905 916/020 010/031 021/038 023/036 014/032
    +/S 80/I    00/B    01/B    21/N    22/J    11/U
BHK 004 920/908 916/015 011/030 021/034 020/033 015/029
    +/S 80/I    00/B    01/B    21/N    23/J    11/U
SHR 007 921/902 912/020 006/030 019/036 021/034 013/033
    +/S 80/I    00/U    01/U    21/B    22/J    11/B

&&

.BYZ WATCHES/WARNINGS/ADVISORIES...
MT...Winter Storm Warning in effect until 5 PM MST this afternoon
      FOR ZONES 28-34-39>42-56-63>68.
     Winter Storm Warning in effect until 11 PM MST this evening
      FOR ZONES 29>31-35-38-57-58.
     Winter Weather Advisory in effect until 5 AM MST Saturday FOR
      ZONES 32-33.
     Winter Storm Warning in effect until 5 AM MST Saturday FOR
      ZONES 36-37.
WY...Winter Storm Warning in effect until 11 PM MST this evening
      FOR ZONES 98-99.

&&

weather.gov/billings
Hazardous weather outlook, Dec 16, 10:11 AM MST, 4 hours 48 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BILLINGS MT
1011 AM MST FRI DEC 16 2016

MTZ028>042-056>058-063>068-WYZ098-099-171715-
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 BIGHORN MOUNTAINS-SHERIDAN FOOTHILLS-
1011 AM MST FRI DEC 16 2016

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

* POTENTIAL IMPACTS:  BLIZZARD CONDITIONS, BITTER COLD WIND
CHILLS, AND COLD TEMPERATURES.

* TIMING: BITTER COLD TEMPERATURES TONIGHT. BITTER COLD WIND
  CHILLS SATURDAY AND SUNDAY. STRONG WIND GUSTS AND SERIOUS
  BLOWING AND DRIFTING SNOW CONCERNS LATE SATURDAY THROUGH
  SUNDAY.

* TEMPERATURES: -20 TO -30 DEGREES TONIGHT.

* WIND: WEST WINDS INCREASE LATE SATURDAY WITH GUSTS OF 40 TO 60
  MPH OVER AREAS WEST OF BILLINGS, 20 TO 30 MPH EAST OF BILLINGS.

* BLOWING SNOW: NEAR BLIZZARD CONDITIONS WEST LATE SATURDAY
  THROUGH SUNDAY, ESPECIALLY ALONG I-90 LIVINGSTON TO REED POINT
  AND US191 BIG TIMBER TO HARLOWTON. BLOWING AND DRIFTING SNOW
  ELSEWHERE SATURDAY NIGHT AND SUNDAY.

* WIND CHILLS: -30 TO -50 DEGREES TONIGHT. -15 TO -30 SATURDAY
  AFTERNOON INTO SUNDAY.

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.

&&

In the hours before

Local storm report, Dec 16, 9:40 AM MST, 5 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
940 AM MST FRI DEC 16 2016

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

0900 AM     SNOW             13 SW MCLEOD            45.49N 110.23W
12/16/2016  M5.1 INCH        PARK               MT   COCORAHS

0900 AM     HEAVY SNOW       1 SE BILLINGS           45.77N 108.48W
12/16/2016  M9.0 INCH        YELLOWSTONE        MT   CO-OP OBSERVER

0830 AM     SNOW             5 E EMIGRANT            45.38N 110.64W
12/16/2016  M3.2 INCH        PARK               MT   COCORAHS

0815 AM     HEAVY SNOW       8 W HYSHAM              46.27N 107.40W
12/16/2016  M8.5 INCH        TREASURE           MT   COCORAHS

0800 AM     HEAVY SNOW       1 NW BILLINGS           45.80N 108.56W
12/16/2016  M8.0 INCH        YELLOWSTONE        MT   COCORAHS

0800 AM     SNOW             2 NW SHERIDAN           44.81N 106.98W
12/16/2016  M2.7 INCH        SHERIDAN           WY   COCORAHS

0800 AM     HEAVY SNOW       SPRINGDALE              45.74N 110.23W
12/16/2016  M9.0 INCH        PARK               MT   CO-OP OBSERVER

0800 AM     SNOW             8 SW RYEGATE            46.20N 109.34W
12/16/2016  M4.0 INCH        GOLDEN VALLEY      MT   COCORAHS

0700 AM     SNOW             2 W KINSEY              46.57N 105.71W
12/16/2016  M2.5 INCH        CUSTER             MT   COCORAHS

0700 AM     SNOW             4 NE RIDGE              45.09N 104.98W
12/16/2016  M3.0 INCH        CARTER             MT   COCORAHS

0700 AM     SNOW             10 ENE MELVILLE         46.17N 109.77W
12/16/2016  M5.0 INCH        SWEET GRASS        MT   COCORAHS

0700 AM     HEAVY SNOW       RYEGATE                 46.30N 109.26W
12/16/2016  M8.0 INCH        GOLDEN VALLEY      MT   COCORAHS

&&

REIMER
Local storm report, Dec 16, 10:23 AM MST, 4 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
1023 AM MST FRI DEC 16 2016

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

0800 AM     HEAVY SNOW       1 N COLSTRIP            45.89N 106.63W
12/16/2016  M6.0 INCH        ROSEBUD            MT   CO-OP OBSERVER

&&

REIMER
Local storm report, Dec 16, 10:36 AM MST, 4 hours 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
1036 AM MST FRI DEC 16 2016

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

0900 AM     SNOW             1 SSW SHERIDAN          44.78N 106.96W
12/16/2016  M2.4 INCH        SHERIDAN           WY   CO-OP OBSERVER

0900 AM     HEAVY SNOW       8 SE ROUNDUP            46.35N 108.44W
12/16/2016  M10.0 INCH       MUSSELSHELL        MT   COCORAHS

0700 AM     SNOW             12 SSE BROADUS          45.27N 105.33W
12/16/2016  M4.2 INCH        POWDER RIVER       MT   COCORAHS

0700 AM     SNOW             19 NNW BROADUS          45.67N 105.62W
12/16/2016  M4.0 INCH        POWDER RIVER       MT   COCORAHS

0100 AM     HEAVY SNOW       14 W NYE                45.42N 110.09W
12/16/2016  M14.0 INCH       SWEET GRASS        MT   MESONET

0100 AM     HEAVY SNOW       12 NE WILSALL           46.11N 110.47W
12/16/2016  M6.0 INCH        PARK               MT   MESONET

0100 AM     HEAVY SNOW       3 N COOKE CITY          45.06N 109.95W
12/16/2016  M11.0 INCH       PARK               MT   MESONET

0100 AM     HEAVY SNOW       2 N COOKE CITY          45.05N 109.94W
12/16/2016  M14.0 INCH       PARK               MT   MESONET

0100 AM     SNOW             25 ESE EMIGRANT         45.27N 110.25W
12/16/2016  M5.0 INCH        PARK               MT   MESONET

&&

REIMER
Local storm report, Dec 16, 12:37 PM MST, 2 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
1237 PM MST FRI DEC 16 2016

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

1100 AM     HEAVY SNOW       6 WSW PARK CITY         45.60N 109.03W
12/16/2016  M7.3 INCH        STILLWATER         MT   COCORAHS

1047 AM     HEAVY SNOW       9 SSE BIG HORN          46.04N 107.34W
12/16/2016  M6.0 INCH        TREASURE           MT   TRAINED SPOTTER

            6 INCHES OF NEW SNOWFALL ESTIMATED.

0900 AM     SNOW             1 SSW SHERIDAN          44.78N 106.96W
12/16/2016  M4.8 INCH        SHERIDAN           WY   CO-OP OBSERVER

0900 AM     HEAVY SNOW       8 WSW LAME DEER         45.56N 106.76W
12/16/2016  M7.5 INCH        BIG HORN           MT   COCORAHS

0800 AM     SNOW             2 NNW SHERIDAN          44.81N 106.97W
12/16/2016  M1.0 INCH        SHERIDAN           WY   COCORAHS

0800 AM     SNOW             1 ESE RANCHESTER        44.90N 107.14W
12/16/2016  M3.8 INCH        SHERIDAN           WY   COCORAHS

0800 AM     HEAVY SNOW       6 WSW MCLEOD            45.62N 110.22W
12/16/2016  M7.0 INCH        PARK               MT   TRAINED SPOTTER

            7 INCHES OF SNOWFALL REPORTED 5 MILES WEST OF MCLEOD.

0700 AM     SNOW             3 NE FROMBERG           45.42N 108.87W
12/16/2016  M5.0 INCH        CARBON             MT   COCORAHS

0700 AM     HEAVY SNOW       6 ENE ROUNDUP           46.48N 108.42W
12/16/2016  M7.0 INCH        MUSSELSHELL        MT   COCORAHS

0700 AM     HEAVY SNOW       15 N POMPEYS PILLAR     46.20N 108.00W
12/16/2016  M6.0 INCH        YELLOWSTONE        MT   CO-OP OBSERVER

0700 AM     SNOW             15 SSW VOLBORG          45.63N 105.76W
12/16/2016  M3.0 INCH        POWDER RIVER       MT   COCORAHS

&&

REIMER
Local storm report, Dec 16, 2:42 PM MST, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
242 PM MST FRI DEC 16 2016

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

0146 PM     HEAVY SNOW       1 W BILLINGS            45.79N 108.55W
12/16/2016  M11.0 INCH       YELLOWSTONE        MT   COCORAHS

0945 AM     SNOW             3 NNE ROUNDUP           46.49N 108.51W
12/16/2016  M1.0 INCH        MUSSELSHELL        MT   COCORAHS

0930 AM     SNOW             2 NNE ROUNDUP           46.47N 108.52W
12/16/2016  M3.5 INCH        MUSSELSHELL        MT   COCORAHS

0900 AM     HEAVY SNOW       1 S ABSAROKEE           45.52N 109.45W
12/16/2016  M6.0 INCH        STILLWATER         MT   COCORAHS

0900 AM     SNOW             1 SSW SHERIDAN          44.78N 106.96W
12/16/2016  M2.4 INCH        SHERIDAN           WY   CO-OP OBSERVER

0900 AM     SNOW             NYE                     45.43N 109.81W
12/16/2016  M5.0 INCH        STILLWATER         MT   CO-OP OBSERVER

0700 AM     HEAVY SNOW       1 ENE FORT SMITH        45.31N 107.92W
12/16/2016  M7.3 INCH        BIG HORN           MT   COCORAHS

0700 AM     HEAVY SNOW       MCLEOD                  45.66N 110.12W
12/16/2016  M6.0 INCH        SWEET GRASS        MT   CO-OP OBSERVER

&&

REIMER

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 15, 6:03 PM MSTSpecial Weather StatementBYZStillwater, Sweet Grass, Treasure, Yellowstone117 min
Dec 16, 2:59 PM MSTBlizzard WatchBYZGolden Valley, Park, Stillwater, Sweet Grass, Wheatland23 hr

Nearby

Wind Chill Warnings in Montana, 2016Every wind chill 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.