Snow Avalanche Guidance
Issued by NWS Missoula, MT

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000
FWUS45 KMSO 221135
SAGMSO

Backcountry Forecast for western Montana and north central Idaho
National Weather Service Missoula MT
434 AM MST MON DEC 22 2014

DISCUSSION: SNOW SHOWERS ARE LIKELY TO PRODUCE AN ADDIONAL INCH OR
TWO IN SOUTHWEST MONTANA THIS MORNING. THIS STORM SYSTEM WILL MOVE
OUT OF THE REGION DURING THE AFTERNOON. SCATTERED SNOW SHOWERS
WITH LITTLE SNOW ACCUMULATIONS ARE EXPECTED THIS AFTERNOON. A
RIDGE BUILDS INTO THE REGION TONIGHT AND TUESDAY FOR MAINLY DRY
CONDITIONS.

WEDENESDAY AND THURSDAY ANOTHER STRONG STORM WILL MOVE THROUGH THE
NORTHERN ROCKIES. SNOW LEVELS WILL FALL TO THE VALLEY FLOORS
WEDNESDAY EVENING THROUGH THURSDAY. THERE IS SOME UNCERTAINTY AS
TO THE AMOUNT OF SNOW POSSIBLE WITH THIS SYSTEM. HOWEVER
CONFIDENCE IS INCREASING FOR SNOW AMOUNTS IN THE MOUNTAINS WHICH
WILL BE ANYWERE FROM 6-8" WITH OVER A FOOT NOT OUT OF THE
QUESTION IN MANY AREAS IN THE CLEARWATER AND BITTERROOT
MOUNTAINS.

FOR THE LATEST INFORMATION ON WATCHES, WARNINGS AND ADVISORIES,
GO TO WEATHER.GOV/MISSOULA.

&&
Elevations above 4,000 FT:

                      TODAY        TONIGHT      TUE
Cloud Cover           75%          55%          75%
Hi/Lo Temps           26 to 35     13 to 22     27 to 33
Winds(mph)            W 12G29      W  7         SW 10G25
Precip Chc            70           0            40
Precip Type           sno/shr      sno/shr      snow
Liquid Amt            0.05         0.00         0.01
Snow Ratio(SLR)       14:1         16:1         17:1
Snow Amt(in)          0-2          0            0

Snow Level            3000         2500         2500

$$


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