Winter Weather Warnings / Watches / Advisories
Issued by NWS Missoula, MT

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WWUS45 KMSO 102134
WSWMSO

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE MISSOULA MT
234 PM MST SAT DEC 10 2016

IDZ005-006-MTZ004-006-112200-
/O.NEW.KMSO.WW.Y.0062.161211T0300Z-161212T0600Z/
234 PM MST SAT DEC 10 2016 /134 PM PST SAT DEC 10 2016/

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM MST /7 PM PST/
THIS EVENING TO 11 PM MST /10 PM PST/ SUNDAY...

* IMPACTS/TIMING: SNOW WILL INCREASE IN THE CLEARWATER AND
  BITTERROOT MOUNTAINS AROUND MIDNIGHT. FIVE TO EIGHT INCHES OF
  SNOW ARE POSSIBLE AT LOLO AND LOOKOUT PASSES BY TOMORROW
  AFTERNOON CAUSING DIFFICULT TRAVEL. MANY ROADS ARE ALREADY IN
  POOR CONDITION WITH COMPACTED SNOW AND ICE, SO THIS WILL ONLY
  EXACERBATE CONDITIONS.

* SNOW ACCUMULATIONS: 5-8 INCHES AT LOLO AND LOOKOUT PASSES, WITH
  LESS AT LOWER ELEVATIONS.

* LOCATIONS IMPACTED INCLUDE: ELK RIVER, HIGHWAY 11 PIERCE TO
  HEADQUARTERS, PIERCE, DIXIE, ELK CITY, HIGHWAY 12 LOWELL TO
  LOLO PASS, EVARO HILL, HIGHWAY 200 THOMPSON FALLS TO PLAINS,
  HIGHWAY 200 TROUT CREEK TO HERON, I-90 LOOKOUT PASS TO HAUGAN,
  HIGHWAY 93 SULA TO LOST TRAIL PASS, AND LOLO PASS

$$

MTZ002-003-112200-
/O.NEW.KMSO.WS.A.0006.161212T0600Z-161213T0300Z/
234 PM MST SAT DEC 10 2016

...WINTER STORM WATCH IN EFFECT FROM SUNDAY EVENING THROUGH
MONDAY EVENING...

* IMPACTS/TIMING: ANOTHER IMPRESSIVE SURGE OF ARCTIC AIR WILL POUR
  ACROSS THE CONTINENTAL DIVIDE AND INTO THE NORTHERN ROCKIES
  MONDAY. THE COMBINATION OF GUSTY WINDS, FRESHLY FALLEN SNOW AND
  PERIODS OF ADDITIONAL HEAVY SNOW ALONG THE ARCTIC BOUNDARY COULD
  LEAD TO DANGEROUS TRAVEL CONDITIONS MONDAY, ESPECIALLY DURING
  THE MORNING HOURS.

* SNOW ACCUMULATIONS: AN ADDITIONAL 3 TO 7 INCHES THROUGHOUT THE
  VALLEYS WITH UP TO ANOTHER FOOT THROUGHOUT THE HIGHER TERRAIN.

* WINDS: STEADY NORTH TO EAST WINDS OF 15 TO 30 MPH WINDS WILL BE
  DEVELOPING AS THE ARCTIC BOUNDARY PUSHES ACROSS THE CONTINENTAL
  DIVIDE. FREQUENT GUSTS TO 40 MPH ARE POSSIBLE WITH OCCASIONAL
  GUSTS TO NEAR 50 MPH ALONG US-2 AND THROUGH BAD ROCK CANYON.

* LOCATIONS IMPACTED INCLUDE: BAD ROCK CANYON, ESSEX, HIGHWAY 83
  BIGFORK TO SWAN LAKE, MARIAS PASS, POLEBRIDGE, FLATHEAD LAKE,
  FLATHEAD VALLEY, MISSION VALLEY, AND POLSON

$$

MTZ005-043-112200-
/O.NEW.KMSO.WS.A.0006.161212T0900Z-161213T0300Z/
234 PM MST SAT DEC 10 2016

...WINTER STORM WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
MONDAY EVENING...

* IMPACTS/TIMING: AN ARCTIC AIR MASS WILL PUSH ACROSS THE
  CONTINENTAL DIVIDE AND INTO THE NORTHERN ROCKIES MONDAY. THE
  COMBINATION OF GUSTY WINDS, FRESHLY FALLEN SNOW AND PERIODS OF
  ADDITIONAL HEAVY SNOW ALONG THE ARCTIC BOUNDARY COULD LEAD TO
  DANGEROUS TRAVEL CONDITIONS MONDAY, ESPECIALLY DURING THE
  AFTERNOON.

* SNOW ACCUMULATIONS: 6 TO 9 INCHES WITH LOCALLY HIGHER AMOUNTS
  POSSIBLE.

* WINDS: STEADY NORTH TO EAST WINDS OF 10 TO 20 MPH WILL BE
  DEVELOPING AS THE ARCTIC BOUNDARY SHIFTS SOUTH AND WEST MONDAY.
  GUSTS WILL FREQUENTLY REACH 30 MPH WITH OCCASIONAL 40 MPH
  READINGS POSSIBLE NEAR HELLGATE CANYON AND ALONG MT-200.

* LOCATIONS IMPACTED INCLUDE: BITTERROOT VALLEY, MISSOULA,
  HIGHWAY 200 BONNER TO GREENOUGH, HIGHWAY 83 SEELEY LAKE TO
  CONDON, AND I-90 EAST MISSOULA TO BEARMOUTH

$$


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