Snow Avalanche Guidance
Issued by NWS Pendleton, OR

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985
FWUS46 KPDT 172256
SAGPDT

Avalanche Guidance
National Weather Service Pendleton OR
256 PM PST Sun Dec 17 2017

ORZ050-181400-
Wallowa Mountains 8000 to 9000 feet-
256 PM PST Sun Dec 17 2017

.TONIGHT...Cloudy with chance of snow. Little or no snow
accumulation. West winds 10 to 20 mph with gusts to 30 mph. Lows
23 to 30.
.MONDAY...Cloudy with chance of snow. West winds 10 to 15 mph with
gusts to 25 mph. Highs 26 to 33.
.MONDAY NIGHT...Cloudy with chance of snow. Southwest winds 10 to
15 mph. Gusts up to 25 mph after midnight. Lows 22 to 29.
.TUESDAY...Cloudy with chance of snow. Southwest winds 15 to 20 mph
with gusts to 30 mph increasing to 20 to 30 mph with gusts to 40 mph
in the afternoon. Highs 27 to 34.
.TUESDAY NIGHT...Chance of snow in the evening, then snow after
midnight. Snow accumulation up to 1 inch. South winds 20 to 30 mph
with gusts to 45 mph. Lows 10 to 17.
.WEDNESDAY...Snow likely in the morning, then mostly cloudy with
chance of snow in the afternoon. Snow accumulation up to 1 inch.
West winds around 10 mph. Highs 13 to 20.

$$

ORZ050-181400-
Salt Creek Area 5000 to 7000 feet-
256 PM PST Sun Dec 17 2017

.TONIGHT...Cloudy. Chance of snow in the evening, then slight chance
of snow after midnight. South winds around 10 mph. Lows 20 to 27.
.MONDAY...Cloudy with chance of snow. South winds around 10 mph.
Highs 29 to 36.
.MONDAY NIGHT...Cloudy with chance of snow. South winds around
10 mph. Lows 22 to 29.
.TUESDAY...Cloudy with chance of snow. South winds 10 to 15 mph.
Highs 29 to 36.
.TUESDAY NIGHT...Chance of snow in the evening, then snow after
midnight. Snow accumulation up to 1 inch. South winds 10 to 20 mph
with gusts to 30 mph. Lows 18 to 25.
.WEDNESDAY...Snow likely in the morning, then chance of snow in the
afternoon. Snow accumulation up to 1 inch. Light winds. Highs 21 to
28.

$$

ORZ050-062-181400-
Clear Creek Area 6000 to 8000 feet-
256 PM PST Sun Dec 17 2017

.TONIGHT...Cloudy with chance of snow. Southwest winds around
10 mph. Lows 18 to 25.
.MONDAY...Cloudy with chance of snow. Southwest winds around 10 mph
in the morning becoming light. Highs 26 to 33.
.MONDAY NIGHT...Cloudy with chance of snow. South winds around
10 mph. Lows 19 to 26.
.TUESDAY...Cloudy with chance of snow. South winds 10 to 15 mph.
Gusts up to 25 mph in the afternoon. Highs 27 to 34.
.TUESDAY NIGHT...Snow likely in the evening, then snow after
midnight. Snow accumulation of 1 to 2 inches. South winds 15 to
25 mph with gusts to 35 mph. Lows 14 to 21.
.WEDNESDAY...Snow likely in the morning, then chance of snow in the
afternoon. Snow accumulation up to 1 inch. West winds around 10 mph.
Highs 15 to 22.

$$

ORZ050-062-181400-
Catherine Creek Area 6000 to 8000 feet-
256 PM PST Sun Dec 17 2017

.TONIGHT...Snow likely in the evening, then chance of snow after
midnight. Snow accumulation up to 1 inch. Southwest winds around
10 mph. Lows 23 to 30.
.MONDAY...Cloudy with chance of snow. Southwest winds around 10 mph.
Highs 28 to 35.
.MONDAY NIGHT...Cloudy with chance of snow. South winds around
10 mph. Lows 23 to 30.
.TUESDAY...Cloudy with chance of snow. South winds 10 to 15 mph.
Gusts up to 25 mph in the afternoon. Highs 29 to 36.
.TUESDAY NIGHT...Snow likely in the evening, then snow after
midnight. Snow accumulation up to 1 inch. South winds 15 to 25 mph
with gusts to 35 mph. Lows 15 to 22.
.WEDNESDAY...Snow likely in the morning, then mostly cloudy with
chance of snow in the afternoon. Snow accumulation up to 1 inch.
West winds around 10 mph. Highs 18 to 25.

$$

ORZ050-062-181400-
Norway Area 7000 to 10000 feet-
256 PM PST Sun Dec 17 2017

.TONIGHT...Cloudy with chance of snow. Little or no snow
accumulation. Southwest winds around 10 mph. Lows 21 to 28.
.MONDAY...Cloudy with chance of snow. Little or no snow
accumulation. Southwest winds around 10 mph. Highs 26 to 33.
.MONDAY NIGHT...Cloudy with chance of snow. Southwest winds around
10 mph. Lows 19 to 26.
.TUESDAY...Cloudy with chance of snow. South winds 10 to 15 mph.
Gusts up to 30 mph in the afternoon. Highs 28 to 35.
.TUESDAY NIGHT...Snow likely in the evening, then snow after
midnight. Snow accumulation around 1 inch. South winds 15 to 25 mph
with gusts to 35 mph. Lows 13 to 20.
.WEDNESDAY...Snow likely in the morning, then chance of snow in the
afternoon. Snow accumulation up to 1 inch. West winds around 10 mph.
Highs 14 to 21.

$$

ORZ062-503-181400-
Anthony Lakes Area 7000 to 9000 feet-
256 PM PST Sun Dec 17 2017

.TONIGHT...Cloudy. Chance of snow in the evening, then slight chance
of snow after midnight. West winds 10 to 15 mph. Gusts up to 25 mph
after midnight. Lows 22 to 29.
.MONDAY...Mostly cloudy in the morning then becoming cloudy. Chance
of snow. West winds 10 to 15 mph. Highs 26 to 33.
.MONDAY NIGHT...Cloudy with slight chance of snow. Southwest winds
10 to 15 mph. Lows 22 to 29.
.TUESDAY...Cloudy. Slight chance of snow in the morning, then chance
of snow in the afternoon. Southwest winds 10 to 20 mph with gusts to
30 mph. Highs 27 to 34.
.TUESDAY NIGHT...Snow likely in the evening, then snow after
midnight. Snow accumulation up to 1 inch. Southwest winds 20 to
30 mph with gusts to 40 mph. Lows 11 to 18.
.WEDNESDAY...Snow likely. Snow accumulation around 1 inch. Northwest
winds 10 to 15 mph. Gusts up to 25 mph in the morning. Highs 11 to
18.

$$

ORZ502-181400-
Blue Mountains 4000 to 6000 feet-
256 PM PST Sun Dec 17 2017

.TONIGHT...Rain and snow likely in the evening, then chance of rain
and snow after midnight. Snow accumulation up to 1 inch. Southwest
winds around 10 mph with gusts to 30 mph. Lows 25 to 32.
.MONDAY...Chance of snow and rain in the morning, then rain and snow
likely in the afternoon. Snow accumulation up to 2 inches. Southwest
winds 10 to 15 mph with gusts to 30 mph. Highs 34 to 41.
.MONDAY NIGHT...Rain and snow likely in the evening, then chance of
rain and snow after midnight. Snow accumulation up to 2 inches.
Southwest winds around 10 mph. Lows 26 to 33.
.TUESDAY...Cloudy. Chance of snow and rain in the morning, then
chance of snow in the afternoon. Little or no snow accumulation.
South winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Highs
33 to 40.
.TUESDAY NIGHT...Snow likely in the evening, then snow after
midnight. Snow accumulation up to 1 inch. Southwest winds 10 to
15 mph with gusts to 30 mph. Lows 17 to 24.
.WEDNESDAY...Cloudy with chance of snow. Little or no snow
accumulation. West winds 10 to 15 mph. Highs 21 to 28.

$$

ORZ509-181400-
Broken Top-
256 PM PST Sun Dec 17 2017

.TONIGHT...Mostly cloudy. West winds 10 to 15 mph with gusts to
25 mph increasing to 15 to 25 mph with gusts to 35 mph after
midnight. Lows 24 to 31.
.MONDAY...Mostly cloudy. West winds 10 to 20 mph. Gusts up to 30 mph
in the morning. Highs 31 to 38.
.MONDAY NIGHT...Mostly cloudy. Southwest winds 10 to 20 mph with
gusts to 30 mph. Lows 22 to 29.
.TUESDAY...Mostly cloudy with slight chance of snow in the morning,
then cloudy with chance of snow in the afternoon. Snow accumulation
up to 1 inch. Southwest winds 20 to 30 mph with gusts to 40 mph
increasing to 35 to 45 mph with gusts to 65 mph in the afternoon.
Highs 31 to 38.
.TUESDAY NIGHT...Snow. Snow accumulation of 2 to 3 inches. Southwest
winds 35 to 45 mph with gusts to 65 mph becoming west 15 to 25 mph
after midnight. Lows 9 to 16.
.WEDNESDAY...Snow likely. Snow accumulation of 1 to 2 inches. West
winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Highs 16 to
23.

$$

ORZ509-181400-
Tam McArthur Rim-
256 PM PST Sun Dec 17 2017

.TONIGHT...Mostly cloudy. West winds 10 to 15 mph increasing to
15 to 25 mph after midnight. Lows 25 to 32.
.MONDAY...Mostly cloudy. West winds 15 to 20 mph with gusts to
30 mph shifting to the southwest around 10 mph in the afternoon.
Highs 32 to 39.
.MONDAY NIGHT...Mostly cloudy. Southwest winds 10 to 20 mph with
gusts to 30 mph. Lows 23 to 30.
.TUESDAY...Mostly cloudy with slight chance of snow in the morning,
then cloudy with chance of snow in the afternoon. Little or no snow
accumulation. Southwest winds 15 to 25 mph with gusts to 35 mph
increasing to 35 to 45 mph with gusts to 60 mph in the afternoon.
Highs 32 to 39.
.TUESDAY NIGHT...Snow. Snow accumulation of 2 to 3 inches. Southwest
winds 35 to 45 mph with gusts to 65 mph becoming west 10 to 20 mph
with gusts to 30 mph after midnight. Lows 10 to 17.
.WEDNESDAY...Snow likely. Snow accumulation of 1 to 2 inches. West
winds 10 to 15 mph. Gusts up to 25 mph in the afternoon. Highs 16 to
23.

$$

ORZ509-181400-
Newberry Crater-
256 PM PST Sun Dec 17 2017

.TONIGHT...Mostly cloudy. West winds 10 to 20 mph. Gusts up to
30 mph after midnight. Lows 26 to 33.
.MONDAY...Mostly cloudy. West winds 10 to 15 mph. Gusts up to 25 mph
in the morning. Highs 36 to 43.
.MONDAY NIGHT...Mostly cloudy. Southwest winds 10 to 20 mph with
gusts to 30 mph. Lows 26 to 33.
.TUESDAY...Mostly cloudy. Slight chance of snow in the afternoon.
Southwest winds 15 to 25 mph with gusts to 40 mph increasing to
25 to 35 mph with gusts to 50 mph in the afternoon. Highs 36 to 43.
.TUESDAY NIGHT...Snow in the evening, then snow likely after
midnight. Snow accumulation of 1 to 3 inches. Southwest winds 30 to
40 mph with gusts to 55 mph becoming west 15 to 25 mph after
midnight. Lows 14 to 21.
.WEDNESDAY...Mostly cloudy in the morning then becoming cloudy.
Chance of snow. Snow accumulation up to 1 inch. West winds 10 to
20 mph. Highs 19 to 26.

$$


http://weather.gov/pendleton



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