Snow Avalanche Guidance
Issued by NWS Pocatello, ID

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000
FWUS45 KPIH 201044
SAGPIH

SNOW AVALANCHE GUIDANCE PRODUCT
NATIONAL WEATHER SERVICE POCATELLO ID
344 AM MST Mon Feb 20 2017

.DISCUSSION...Another extremely wet and warm Pacific storm system
will bring heavy snow to the Sawtooth region . Most of the heavy
snow will fall above 6500 to 7000 feet with snow likely turning to
rain below 6500 feet today through Tuesday morning. 1 to 2 feet of
snow are expected through Thursday above 7000 feet. Snow will
likely be wet with very strong winds expected out of the south
ahead of a cold front later tonight and shifting to the southwest
to west on Tuesday with high speeds expected. Temperatures will
turn colder Tuesday night into Wednesday and for several days
after. The pattern will change to much colder and drier with
periods of snow showers through the weekend into next week with
systems originating from Canada rather than the Pacific.


**********SAWTOOTH RECREATION AREA FORECAST**********
...Bald Mtn (9145 ft)...
                         Today...     Tonight...     Tuesday...

Cloud cover                cloudy         cloudy         cloudy
Precip type                  SNOW           SNOW           SNOW
Max/Min/Max temp               32             26             34
Wind                  SW around 8    S around 17    SW around 25
QPF                          0.60           0.51           0.22
Snow amount                   8.1            6.3            3.0
Precip prob (%)               100             90             75
Snow level (ft)              5700           6700           5500

QPF Probabilities...
PROB (%) > 0.10 IN             99             88             68
PROB (%) > 0.25 IN             90             80             45
PROB (%) > 0.50 IN             60             50             25
PROB (%) > 1.00 IN             20             20             10

...Titus Peak (10079 ft)...
                         Today...     Tonight...     Tuesday...

Cloud cover                cloudy         cloudy         cloudy
Precip type                  SNOW           SNOW           SNOW
Max/Min/Max temp               29             23             29
Wind                  S around 15    S around 23   SW around 35
QPF                          0.74           0.71           0.34
Snow amount                  10.5            9.8            5.1
Precip prob (%)               100             95             85
Snow level (ft)              5900           6800           5400

QPF Probabilities...
PROB (%) > 0.10 IN             99             95             82
PROB (%) > 0.25 IN             95             90             65
PROB (%) > 0.50 IN             75             70             35
PROB (%) > 1.00 IN             35             30             15

Estimated Past 24hr (3am-3am) snowfall: 4.8


...Soldier Mtn (9495 ft)...
                         Today...     Tonight...     Tuesday...

Cloud cover                cloudy         cloudy         cloudy
Precip type           SNOWSHOWERS    SNOWSHOWERS          tstms
Max/Min/Max temp               30             25             28
Wind                 SW around 29   SW around 25   SW around 46
QPF                          0.66           0.84           0.31
Snow amount                   6.7            8.3            4.1
Precip prob (%)               100            100             85
Snow level (ft)              5800           6300           5700

QPF Probabilities...
PROB (%) > 0.10 IN             99            100             79
PROB (%) > 0.25 IN             90             95             55
PROB (%) > 0.50 IN             65             80             30
PROB (%) > 1.00 IN             25             45             10

...Sawtooth (7775 ft)...
                         Today...     Tonight...     Tuesday...

Cloud cover                cloudy         cloudy         cloudy
Precip type                  SNOW           SNOW           SNOW
Max/Min/Max temp               35             28             35
Wind                 SE around 10   SE around 16   SE around 18
QPF                          0.54           0.52           0.36
Snow amount                   6.8            6.4            4.4
Precip prob (%)               100             90             80
Snow level (ft)              6000           6700           5300

QPF Probabilities...
PROB (%) > 0.10 IN             99             89             77
PROB (%) > 0.25 IN             90             80             65
PROB (%) > 0.50 IN             55             50             40
PROB (%) > 1.00 IN             15             20             15

...Vienna Mine (8960 ft)...
                         Today...     Tonight...     Tuesday...

Cloud cover                cloudy         cloudy         cloudy
Precip type           SNOWSHOWERS    SNOWSHOWERS          tstms
Max/Min/Max temp               31             25             30
Wind                  S around 24    S around 22   SW around 35
QPF                          0.57           0.66           0.39
Snow amount                   6.2            6.8            5.1
Precip prob (%)               100            100             90
Snow level (ft)              6100           6500           5700

QPF Probabilities...
PROB (%) > 0.10 IN             99             99             87
PROB (%) > 0.25 IN             90             95             70
PROB (%) > 0.50 IN             55             70             40
PROB (%) > 1.00 IN             20             25             10

$$
**********SUN VALLEY AREA FORECAST**********
...valleys to 6500 ft...
                         Today...     Tonight...     Tuesday...

Cloud cover                cloudy         cloudy         cloudy
Precip type                  SNOW           RAIN           SNOW
Max/Min/Max temp         39 to 43       33 to 36       43 to 46
Wind                  W around 10    S around 12    S around 12
Snow amount              around 2          TRACE       around 2

...6500 ft to 8000 ft...
                         Today...     Tonight...     Tuesday...

Cloud cover                cloudy         cloudy         cloudy
Precip type                  SNOW           SNOW           SNOW
Max/Min/Max temp         34 to 42       28 to 33       36 to 45
Wind                   SW 2 to 12     SE 7 to 17      S 4 to 14
Snow amount                   7-9       around 8            2-4

$$



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