Snow Avalanche Guidance
Issued by NWS Pendleton, OR

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FWUS46 KPDT 171156
SAGPDT

Avalanche Guidance
National Weather Service Pendleton OR
356 AM PST Sat Feb 17 2018

ORZ050-180200-
Wallowa Mountains 8000 to 9000 feet-
356 AM PST Sat Feb 17 2018

.TODAY...Snow. Areas of blowing snow in the afternoon. Snow
accumulation of 2 to 4 inches. Southwest winds 20 to 35 mph. Gusts
up to 45 mph increasing to 65 mph in the afternoon. Highs 22 to 29.
.TONIGHT...Areas of blowing snow in the evening. Snow. Snow
accumulation of 1 to 3 inches. West winds 25 to 35 mph with gusts to
50 mph decreasing to 15 to 25 mph with gusts to 35 mph after
midnight. Lows 6 to 13.
.SUNDAY...Snow likely. Snow accumulation around 2 inches. Northwest
winds 15 to 20 mph with gusts to 30 mph. Highs 7 to 14.
.SUNDAY NIGHT...Snow likely in the evening, then chance of snow
after midnight. Snow accumulation around 1 inch. Northwest winds
10 to 20 mph. Lows 1 below to 8 below zero.
.WASHINGTONS BIRTHDAY...Cloudy in the morning then becoming mostly
cloudy. Chance of snow showers. Northwest winds 10 to 15 mph. Highs
2 below to 5 above zero.
.MONDAY NIGHT...Mostly cloudy. Slight chance of snow in the evening.
North winds 10 to 15 mph. Lows 11 below to 18 below zero.

$$

ORZ050-180200-
Salt Creek Area 5000 to 7000 feet-
356 AM PST Sat Feb 17 2018

.TODAY...Snow. Areas of blowing snow in the afternoon. Snow
accumulation of 1 to 2 inches. South winds 10 to 15 mph with gusts
to 35 mph increasing to southwest 20 to 30 mph with gusts to 55 mph
in the afternoon. Highs 28 to 35.
.TONIGHT...Areas of blowing snow in the evening. Snow. Snow
accumulation of 1 to 2 inches. West winds 20 to 30 mph with gusts to
40 mph decreasing to 10 to 15 mph after midnight. Lows 15 to 22.
.SUNDAY...Snow likely. Snow accumulation around 1 inch. West winds
10 to 15 mph. Highs 18 to 25.
.SUNDAY NIGHT...Snow likely in the evening, then chance of snow
after midnight. Snow accumulation up to 1 inch. Northwest winds
10 to 15 mph. Lows 1 below to 6 above zero.
.WASHINGTONS BIRTHDAY...Cloudy in the morning then becoming mostly
cloudy. Chance of snow showers. Northwest winds around 10 mph. Highs
7 to 14.
.MONDAY NIGHT...Mostly cloudy. Slight chance of snow in the evening.
North winds 10 to 15 mph. Lows 5 below to 12 below zero.

$$

ORZ050-062-180200-
Clear Creek Area 6000 to 8000 feet-
356 AM PST Sat Feb 17 2018

.TODAY...Snow. Areas of blowing snow in the afternoon. Snow
accumulation of 1 to 4 inches. Southwest winds 15 to 20 mph with
gusts to 30 mph increasing to 20 to 30 mph with gusts to 55 mph in
the afternoon. Highs 25 to 32.
.TONIGHT...Areas of blowing snow in the evening. Snow. Snow
accumulation of 1 to 2 inches. West winds 20 to 30 mph with gusts to
40 mph decreasing to 15 to 20 mph after midnight. Lows 13 to 20.
.SUNDAY...Snow likely. Snow accumulation of 1 to 2 inches. West
winds 10 to 15 mph. Gusts up to 25 mph in the morning. Highs 14 to
21.
.SUNDAY NIGHT...Snow likely in the evening, then chance of snow
after midnight. Snow accumulation up to 1 inch. Northwest winds
10 to 15 mph. Gusts up to 25 mph in the evening. Lows 2 below to
5 above zero.
.WASHINGTONS BIRTHDAY...Cloudy in the morning then becoming mostly
cloudy. Chance of snow showers. Northwest winds 10 to 15 mph. Highs
4 to 11.
.MONDAY NIGHT...Mostly cloudy. Slight chance of snow in the evening.
North winds 10 to 15 mph. Lows 5 below to 12 below zero.

$$

ORZ050-062-180200-
Catherine Creek Area 6000 to 8000 feet-
356 AM PST Sat Feb 17 2018

.TODAY...Snow. Areas of blowing snow in the afternoon. Snow
accumulation of 2 to 4 inches. Southwest winds 15 to 20 mph with
gusts to 35 mph increasing to 20 to 30 mph with gusts to 55 mph in
the afternoon. Highs 25 to 32.
.TONIGHT...Areas of blowing snow in the evening. Snow. Snow
accumulation of 1 to 2 inches. West winds 20 to 30 mph with gusts to
45 mph decreasing to 15 to 20 mph with gusts to 30 mph after
midnight. Lows 12 to 19.
.SUNDAY...Snow in the morning, then snow likely in the afternoon.
Snow accumulation of 1 to 2 inches. Northwest winds 10 to 15 mph
with gusts to 25 mph. Highs 12 to 19.
.SUNDAY NIGHT...Snow likely in the evening, then chance of snow
after midnight. Snow accumulation up to 1 inch. Northwest winds
10 to 15 mph. Gusts up to 25 mph in the evening. Lows 4 below to
3 above zero.
.WASHINGTONS BIRTHDAY...Cloudy in the morning then becoming mostly
cloudy. Chance of snow showers. Northwest winds 10 to 15 mph. Highs
2 to 9.
.MONDAY NIGHT...Mostly cloudy with slight chance of snow in the
evening, then partly cloudy after midnight. North winds 10 to
15 mph. Lows 5 below to 12 below zero.

$$

ORZ050-062-180200-
Norway Area 7000 to 10000 feet-
356 AM PST Sat Feb 17 2018

.TODAY...Snow. Areas of blowing snow in the afternoon. Snow
accumulation of 3 to 5 inches. Southwest winds 20 to 30 mph. Gusts
up to 35 mph increasing to 55 mph in the afternoon. Highs 22 to 29.
.TONIGHT...Areas of blowing snow in the evening. Snow. Snow
accumulation of 1 to 3 inches. West winds 20 to 30 mph. Gusts up to
45 mph decreasing to 35 mph after midnight. Lows 9 to 16.
.SUNDAY...Snow. Snow accumulation of 1 to 2 inches. Northwest winds
15 to 20 mph with gusts to 30 mph. Highs 10 to 17.
.SUNDAY NIGHT...Snow likely in the evening, then chance of snow
after midnight. Snow accumulation around 1 inch. Northwest winds
10 to 20 mph. Lows 6 below to 1 above zero.
.WASHINGTONS BIRTHDAY...Cloudy in the morning then becoming mostly
cloudy. Chance of snow showers. Northwest winds 10 to 15 mph. Highs
zero to 7 above zero.
.MONDAY NIGHT...Mostly cloudy. Slight chance of snow in the evening.
North winds 10 to 15 mph. Lows 7 below to 14 below zero.

$$

ORZ062-503-180200-
Anthony Lakes Area 7000 to 9000 feet-
356 AM PST Sat Feb 17 2018

.TODAY...Snow. Areas of blowing snow in the afternoon. Snow
accumulation of 2 to 3 inches. West winds 20 to 35 mph with gusts to
50 mph. Highs 25 to 32.
.TONIGHT...Areas of blowing snow in the evening. Snow likely. Snow
accumulation of 1 to 2 inches. West winds 20 to 30 mph with gusts to
45 mph. Lows 9 to 16.
.SUNDAY...Snow. Snow accumulation of 1 to 2 inches. Northwest winds
15 to 25 mph with gusts to 35 mph. Highs 9 to 16.
.SUNDAY NIGHT...Snow likely. Snow accumulation of 1 to 3 inches.
Northwest winds 10 to 20 mph with gusts to 30 mph. Lows 1 below to
8 below zero.
.WASHINGTONS BIRTHDAY...Cloudy in the morning then becoming mostly
cloudy. Slight chance of snow showers. Northwest winds 10 to 15 mph.
Highs 2 below to 5 above zero.
.MONDAY NIGHT...Partly cloudy. Northwest winds 10 to 15 mph. Lows
9 below to 16 below zero.

$$

ORZ502-180200-
Blue Mountains 4000 to 6000 feet-
356 AM PST Sat Feb 17 2018

...WINTER STORM WARNING IN EFFECT FROM 7 AM THIS MORNING TO 10 PM
PST SUNDAY...

.TODAY...Snow in the morning, then snow and rain in the afternoon.
Areas of blowing snow in the afternoon. Snow accumulation of 2 to
3 inches. Southwest winds 15 to 25 mph increasing to west 25 to
35 mph in the afternoon. Gusts up to 55 mph. Highs 31 to 38.
.TONIGHT...Areas of blowing snow in the evening. Snow. Snow
accumulation of 1 to 2 inches. West winds 20 to 30 mph. Gusts up to
45 mph decreasing to 35 mph after midnight. Lows 17 to 24.
.SUNDAY...Snow likely in the morning, then snow in the afternoon.
Snow accumulation of 1 to 2 inches. West winds 15 to 20 mph. Gusts
up to 35 mph in the morning. Highs 17 to 24.
.SUNDAY NIGHT...Snow likely. Snow accumulation up to 2 inches.
Northwest winds 10 to 20 mph. Lows 2 below to 5 above zero.
.WASHINGTONS BIRTHDAY...Cloudy with chance of snow showers in the
morning, then mostly cloudy with slight chance of snow showers in
the afternoon. West winds 10 to 15 mph. Highs 4 to 11.
.MONDAY NIGHT...Partly cloudy in the evening then clearing.
Northwest winds around 10 mph in the evening becoming light. Lows
3 below to 10 below zero.

$$

ORZ509-180200-
Broken Top-
356 AM PST Sat Feb 17 2018

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM PST SUNDAY...

.TODAY...Snow. Areas of blowing snow in the afternoon. Snow
accumulation of 1 to 3 inches. West winds 25 to 35 mph increasing to
35 to 45 mph in the afternoon. Gusts up to 55 mph. Highs 26 to 33.
.TONIGHT...Areas of blowing snow in the evening. Snow likely. Snow
accumulation of 3 to 6 inches. West winds 20 to 35 mph with gusts to
50 mph. Lows 7 to 14.
.SUNDAY...Snow. Snow accumulation of 4 to 7 inches. West winds 20 to
30 mph with gusts to 45 mph. Highs 8 to 15.
.SUNDAY NIGHT...Snow in the evening, then snow likely after
midnight. Snow accumulation of 2 to 3 inches. Northwest winds 15 to
25 mph with gusts to 35 mph. Lows 6 below to 1 above zero.
.WASHINGTONS BIRTHDAY...Mostly cloudy. Chance of snow showers in the
morning, then slight chance of snow showers in the afternoon.
Northwest winds 10 to 15 mph with gusts to 25 mph. Highs 3 to 10.
.MONDAY NIGHT...Partly cloudy. Northwest winds around 10 mph in the
evening becoming light. Lows 5 below to 12 below zero.

$$

ORZ509-180200-
Tam McArthur Rim-
356 AM PST Sat Feb 17 2018

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM PST SUNDAY...

.TODAY...Snow. Areas of blowing snow in the afternoon. Snow
accumulation of 1 to 3 inches. West winds 20 to 30 mph increasing to
30 to 40 mph in the afternoon. Gusts up to 55 mph. Highs 27 to 34.
.TONIGHT...Areas of blowing snow in the evening. Snow likely. Snow
accumulation of 3 to 5 inches. West winds 20 to 35 mph with gusts to
50 mph. Lows 8 to 15.
.SUNDAY...Snow. Snow accumulation of 4 to 6 inches. West winds 20 to
30 mph with gusts to 45 mph. Highs 8 to 15.
.SUNDAY NIGHT...Snow in the evening, then snow likely after
midnight. Snow accumulation of 2 to 3 inches. Northwest winds 15 to
25 mph. Lows 5 below to 2 above zero.
.WASHINGTONS BIRTHDAY...Mostly cloudy. Chance of snow showers in the
morning, then slight chance of snow showers in the afternoon.
Northwest winds 10 to 15 mph with gusts to 25 mph. Highs 3 to 10.
.MONDAY NIGHT...Partly cloudy. Northwest winds around 10 mph in the
evening becoming light. Lows 4 below to 11 below zero.

$$

ORZ509-180200-
Newberry Crater-
356 AM PST Sat Feb 17 2018

...WINTER STORM WARNING IN EFFECT UNTIL 6 PM PST SUNDAY...

.TODAY...Snow likely. Areas of blowing snow in the afternoon. Snow
accumulation up to 1 inch. West winds 20 to 35 mph with gusts to
45 mph. Highs 30 to 37.
.TONIGHT...Areas of blowing snow in the evening. Mostly cloudy with
chance of snow. West winds 20 to 30 mph with gusts to 45 mph. Lows
10 to 17.
.SUNDAY...Snow likely. Snow accumulation of 2 to 3 inches. Northwest
winds 20 to 30 mph with gusts to 40 mph. Highs 11 to 18.
.SUNDAY NIGHT...Snow likely in the evening, then chance of snow
after midnight. Snow accumulation of 1 to 2 inches. Northwest winds
15 to 25 mph with gusts to 35 mph. Lows 3 below to 4 above zero.
.WASHINGTONS BIRTHDAY...Mostly cloudy. Chance of snow showers in the
morning, then slight chance of snow showers in the afternoon.
Northwest winds 15 to 20 mph. Highs 6 to 13.
.MONDAY NIGHT...Partly cloudy in the evening then becoming clear.
North winds 10 to 15 mph in the evening becoming light. Lows 2 below
to 9 below zero.

$$


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