Snow Avalanche Guidance
Issued by NWS Missoula, MT

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FWUS45 KMSO 201107
SAGMSO

Backcountry Forecast for western Montana and north central Idaho
National Weather Service Missoula MT
407 AM MST Mon Feb 20 2017

DISCUSSION:
Precipitation will move northward across the Northern Rockies
today, initially beginning with lower snow levels that will raise
throughout the day. Afternoon showers will become more convective
in nature and could produce periods of heavier precipitation,
especially for the ID/MT border and west-central/northwest
Montana. Another round of precipitation will continue into
Tuesday, which could drop several inches of additional snowfall
on the mountains. A much colder air mass moves in Wednesday.

&&
Elevations above 4,000 FT:

                      Today        Tonight      Tue
Cloud Cover           90%          90%          90%
Hi/Lo Temps           32 to 43     25 to 32     31 to 42
Winds(mph)            SW 10G29     SW 15G33     SW 13G31
Precip Chc            100          90           90
Precip Type           snow         showers      snow
Liquid Amt            0.14         0.15         0.29
Snow Ratio(SLR)       17:1         16:1         16:1
Snow Amt(in)          1-4          2-3          3-6

Snow Level            2500         4500         3500

$$



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