Snow Avalanche Guidance
Issued by NWS Missoula, MT

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FWUS45 KMSO 241116

Backcountry Forecast for western Montana and north central Idaho
National Weather Service Missoula MT
416 AM MST Sat Feb 24 2018


Snow will begin to increase today mainly across the Clearwater
mountains of Idaho and along the Bitterroot crest. With the cooler
airmass in-place, snow ratios should be fairly high with snowfall
amounts of 4 to 8 inches, locally higher, expected over the next
24 hours.

Another stronger westerly system is expected Sunday into Monday
morning and this system is expected to bring more widespread
Mountain snow. The greatest snow amounts will once again be along
the MT/ID border where a foot of snow is likely and some areas
could see a 1.5 feet of snow in 24 hours over central Idaho.
Mountains of West-central and northwest Montana are expected to
see anywhere from 6 to 12 inches of snow with this system. Winds
are expected to become gusty on Sunday with wind gusts of over 50
mph possible on exposed mountain peaks.

Weather is expected to stay active next week, especially Thursday
into the weekend as a low pressure system off the coast moves
further inland.

Elevations above 4,000 FT:

                      Today        Tonight      Sun
Cloud Cover           85%          80%          90%
Hi/Lo Temps           16 to 27     9 to 17      20 to 31
Winds(mph)            W 16G39      W 13G44      SW 30G63
Precip Chc            80           70           100
Precip Type           snow         snow         snow
Liquid Amt            0.09         0.10         0.31
Snow Ratio(SLR)       21:1         20:1         19:1
Snow Amt(in)          1-5          2-4          5-9

Snow Level            0            500          500

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