Snow Avalanche Guidance
Issued by NWS Pendleton, OR

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000
FWUS46 KPDT 202156
SAGPDT

Avalanche Guidance
National Weather Service Pendleton OR
256 PM PDT Fri Oct 20 2017

ORZ050-211300-
Wallowa Mountains 8000 to 9000 feet-
256 PM PDT Fri Oct 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 AM TO 11 PM PDT
SATURDAY...

.TONIGHT...Numerous snow showers in the evening, then scattered snow
showers after midnight. Snow accumulation up to 2 inches. West winds
10 to 20 mph with gusts to 35 mph. Lows 12 to 19.
.SATURDAY...Snow likely in the morning, then snow in the afternoon.
Snow accumulation of 1 to 6 inches. Southwest winds 10 to 15 mph
increasing to 20 to 30 mph with gusts to 45 mph in the afternoon.
Highs 31 to 37.
.SATURDAY NIGHT...Snow in the evening, then rain and snow after
midnight. Snow accumulation up to 5 inches. Southwest winds 20 to
30 mph with gusts to 50 mph. Lows 22 to 29.
.SUNDAY...Rain and snow. Snow accumulation up to 3 inches. West
winds 25 to 35 mph with gusts to 50 mph decreasing to 15 to 25 mph
with gusts to 40 mph in the afternoon. Highs 27 to 34.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and snow showers in
the evening, then slight chance of snow showers after midnight. Snow
accumulation up to 1 inch. West winds 10 to 20 mph. Lows 24 to 31.
.MONDAY...Mostly cloudy in the morning then becoming partly cloudy.
Northwest winds around 10 mph in the morning becoming light. Highs
32 to 39.

$$

ORZ050-211300-
Salt Creek Area 5000 to 7000 feet-
256 PM PDT Fri Oct 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 AM TO 11 PM PDT
SATURDAY...

.TONIGHT...Mostly cloudy. Scattered snow showers in the evening,
then slight chance of snow showers after midnight. Snow accumulation
up to 1 inch. Light winds. Lows 20 to 27.
.SATURDAY...Snow likely in the morning, then snow in the afternoon.
Snow accumulation up to 4 inches. South winds up to 10 mph
increasing to 10 to 15 mph with gusts to 30 mph in the afternoon.
Highs 27 to 34.
.SATURDAY NIGHT...Rain. South winds 10 to 15 mph. Gusts up to 25 mph
after midnight. Lows 27 to 34.
.SUNDAY...Rain. South winds 10 to 15 mph with gusts to 30 mph. Highs
34 to 41.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers in the evening.
Southwest winds around 10 mph in the evening becoming light. Lows
29 to 36.
.MONDAY...Mostly cloudy in the morning then clearing. Light winds.
Highs 39 to 46.

$$

ORZ050-062-211300-
Clear Creek Area 6000 to 8000 feet-
256 PM PDT Fri Oct 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 AM TO 11 PM PDT
SATURDAY...

.TONIGHT...Mostly cloudy. Scattered snow showers in the evening,
then slight chance of snow showers after midnight. Snow accumulation
up to 1 inch. West winds up to 10 mph. Gusts up to 25 mph in the
evening. Lows 17 to 24.
.SATURDAY...Snow likely in the morning, then snow in the afternoon.
Snow accumulation of 1 to 7 inches. South winds 10 to 15 mph. Gusts
up to 30 mph in the afternoon. Highs 25 to 32.
.SATURDAY NIGHT...Snow in the evening, then rain after midnight.
Snow accumulation up to 5 inches. South winds 10 to 20 mph with
gusts to 30 mph. Lows 24 to 31.
.SUNDAY...Rain. Southwest winds 10 to 15 mph with gusts to 30 mph.
Highs 31 to 38.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers in the evening,
then slight chance of showers after midnight. Southwest winds around
10 mph. Lows 27 to 34.
.MONDAY...Mostly cloudy in the morning then becoming partly cloudy.
Light winds. Highs 37 to 44.

$$

ORZ050-062-211300-
Catherine Creek Area 6000 to 8000 feet-
256 PM PDT Fri Oct 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 AM TO 11 PM PDT
SATURDAY...

.TONIGHT...Numerous snow showers in the evening, then scattered snow
showers after midnight. Snow accumulation up to 1 inch. West winds
10 to 15 mph. Gusts up to 25 mph in the evening. Lows 17 to 24.
.SATURDAY...Snow. Snow accumulation of 1 to 6 inches. South winds
around 10 mph increasing to 15 to 20 mph with gusts to 30 mph in the
afternoon. Highs 27 to 34.
.SATURDAY NIGHT...Snow and rain in the evening, then rain after
midnight. Snow accumulation up to 5 inches. South winds 10 to 15 mph
with gusts to 30 mph. Lows 25 to 32.
.SUNDAY...Rain. Southwest winds 10 to 20 mph with gusts to 30 mph.
Highs 33 to 40.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers in the evening,
then slight chance of showers after midnight. West winds 10 to
15 mph. Lows 27 to 34.
.MONDAY...Mostly cloudy in the morning then becoming partly cloudy.
Light winds. Highs 37 to 44.

$$

ORZ050-062-211300-
Norway Area 7000 to 10000 feet-
256 PM PDT Fri Oct 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 8 AM TO 11 PM PDT
SATURDAY...

.TONIGHT...Mostly cloudy with scattered snow showers. Snow
accumulation up to 1 inch. West winds 10 to 15 mph. Gusts up to
35 mph decreasing to 25 mph after midnight. Lows 14 to 21.
.SATURDAY...Snow. Snow accumulation of 1 to 7 inches. Southwest
winds around 10 mph shifting to the south 15 to 20 mph with gusts to
30 mph in the afternoon. Highs 23 to 30.
.SATURDAY NIGHT...Snow in the evening, then rain and snow after
midnight. Snow accumulation up to 5 inches. Southwest winds 20 to
30 mph with gusts to 40 mph. Lows 22 to 29.
.SUNDAY...Rain and snow. Snow accumulation up to 4 inches. Southwest
winds 10 to 20 mph with gusts to 30 mph. Highs 28 to 35.
.SUNDAY NIGHT...Chance of showers and snow showers likely in the
evening, then slight chance of snow showers and showers after
midnight. Snow accumulation up to 1 inch. West winds 10 to 15 mph.
Gusts up to 25 mph in the evening. Lows 24 to 31.
.MONDAY...Mostly cloudy in the morning then becoming partly cloudy.
North winds around 10 mph. Highs 33 to 40.

$$

ORZ062-503-211300-
Anthony Lakes Area 7000 to 9000 feet-
256 PM PDT Fri Oct 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 5 PM PDT
SATURDAY...

.TONIGHT...Mostly cloudy. Scattered snow showers in the evening,
then isolated snow showers after midnight. Snow accumulation up to
1 inch. West winds 15 to 25 mph decreasing to 10 to 15 mph after
midnight. Lows 14 to 21.
.SATURDAY...Snow. Snow accumulation of 2 to 6 inches. Southwest
winds around 10 mph increasing to 15 to 25 mph in the afternoon.
Highs 31 to 38.
.SATURDAY NIGHT...Rain and snow in the evening, then rain after
midnight. Snow accumulation up to 4 inches. Southwest winds 20 to
30 mph with gusts to 45 mph. Lows 25 to 32.
.SUNDAY...Rain. Southwest winds 20 to 30 mph. Gusts up to 45 mph
decreasing to 35 mph in the afternoon. Highs 33 to 40.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers and snow showers in
the evening, then slight chance of showers and snow showers after
midnight. West winds 10 to 20 mph. Lows 25 to 32.
.MONDAY...Mostly cloudy in the morning then becoming partly cloudy.
Northwest winds around 10 mph in the morning becoming light. Highs
38 to 45.

$$

ORZ502-211300-
Blue Mountains 4000 to 6000 feet-
256 PM PDT Fri Oct 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 11 PM PDT
SATURDAY...

.TONIGHT...Mostly cloudy. Scattered snow showers and showers in the
evening, then isolated snow showers after midnight. Snow
accumulation up to 1 inch. West winds 10 to 15 mph with gusts to
35 mph. Lows 24 to 31.
.SATURDAY...Snow likely in the morning, then snow and rain in the
afternoon. Snow accumulation up to 6 inches. Light winds becoming
south around 10 mph with gusts to 30 mph in the afternoon. Highs
35 to 41.
.SATURDAY NIGHT...Rain. Southwest winds 10 to 15 mph. Gusts up to
35 mph increasing to 45 mph after midnight. Lows 32 to 39.
.SUNDAY...Rain. Southwest winds 15 to 25 mph with gusts to 45 mph.
Highs 40 to 47.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers in the evening.
West winds 10 to 15 mph with gusts to 30 mph. Lows 32 to 39.
.MONDAY...Mostly cloudy in the morning then becoming partly cloudy.
Southwest winds up to 10 mph. Highs 43 to 50.

$$

ORZ509-211300-
Broken Top-
256 PM PDT Fri Oct 20 2017

.TONIGHT...Numerous snow showers in the evening, then snow after
midnight. Snow accumulation of 1 to 3 inches. Southwest winds 10 to
20 mph. Gusts up to 30 mph in the evening. Lows 17 to 24.
.SATURDAY...Snow in the morning, then rain in the afternoon. Snow
accumulation up to 9 inches. Southwest winds 30 to 45 mph with gusts
to 60 mph. Highs 34 to 41.
.SATURDAY NIGHT...Rain. Southwest winds 40 to 55 mph with gusts to
75 mph. Lows 29 to 36.
.SUNDAY...Rain. Southwest winds 20 to 30 mph with gusts to 45 mph.
Highs 36 to 43.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers in the evening,
then slight chance of showers after midnight. West winds 15 to
20 mph with gusts to 30 mph. Lows 29 to 36.
.MONDAY...Partly cloudy in the morning then clearing. Southwest
winds around 10 mph in the morning becoming light. Highs 47 to 54.

$$

ORZ509-211300-
Tam McArthur Rim-
256 PM PDT Fri Oct 20 2017

.TONIGHT...Numerous snow showers in the evening, then snow after
midnight. Snow accumulation of 1 to 3 inches. Southwest winds 10 to
20 mph. Gusts up to 30 mph in the evening. Lows 17 to 24.
.SATURDAY...Snow in the morning, then rain in the afternoon. Snow
accumulation up to 7 inches. Southwest winds 30 to 45 mph with gusts
to 60 mph. Highs 34 to 41.
.SATURDAY NIGHT...Rain. Southwest winds 45 to 55 mph with gusts to
75 mph. Lows 30 to 37.
.SUNDAY...Rain. Southwest winds 20 to 30 mph with gusts to 40 mph.
Highs 36 to 43.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers in the evening,
then slight chance of showers after midnight. West winds 10 to
20 mph with gusts to 30 mph. Lows 29 to 36.
.MONDAY...Partly cloudy in the morning then clearing. Southwest
winds around 10 mph in the morning becoming light. Highs 47 to 54.

$$

ORZ509-211300-
Newberry Crater-
256 PM PDT Fri Oct 20 2017

.TONIGHT...Scattered snow showers in the evening, then snow after
midnight. Snow accumulation up to 2 inches. Southwest winds 10 to
20 mph with gusts to 30 mph. Lows 19 to 26.
.SATURDAY...Snow in the morning, then rain in the afternoon. Snow
accumulation up to 7 inches. Southwest winds 25 to 35 mph with gusts
to 50 mph. Highs 37 to 44.
.SATURDAY NIGHT...Mostly cloudy with chance of rain. Southwest winds
30 to 45 mph with gusts to 60 mph. Lows 31 to 38.
.SUNDAY...Mostly cloudy with chance of rain in the morning, then
rain in the afternoon. Southwest winds 20 to 30 mph with gusts to
40 mph. Highs 39 to 46.
.SUNDAY NIGHT...Mostly cloudy. Chance of showers in the evening.
West winds 10 to 20 mph. Lows 31 to 38.
.MONDAY...Partly cloudy in the morning then clearing. Southwest
winds around 10 mph in the morning becoming light. Highs 50 to 57.

$$


http://weather.gov/pendleton



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