Snow Avalanche Guidance
Issued by NWS Pendleton, OR

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FWUS46 KPDT 251156
SAGPDT

Avalanche Guidance
National Weather Service Pendleton OR
356 AM PST Sat Nov 25 2017

ORZ050-260200-
Wallowa Mountains 8000 to 9000 feet-
356 AM PST Sat Nov 25 2017

.TODAY...Partly cloudy in the morning, then cloudy with chance of
snow in the afternoon. Southwest winds 20 to 30 mph. Gusts up to
35 mph increasing to 45 mph in the afternoon. Highs 31 to 38.
.TONIGHT...Mostly cloudy. Chance of snow in the evening, then chance
of snow and slight chance of rain after midnight. Southwest winds
20 to 35 mph. Gusts up to 40 mph increasing to 50 mph after
midnight. Lows 27 to 34.
.SUNDAY...Chance of rain and snow in the morning, then snow and rain
likely in the afternoon. Little or no snow accumulation. South winds
20 to 35 mph with gusts to 50 mph. Highs 32 to 39.
.SUNDAY NIGHT...Snow showers in the evening, then snow showers
likely after midnight. Snow accumulation up to 2 inches. Southwest
winds 25 to 35 mph with gusts to 45 mph becoming west 15 to 20 mph
with gusts to 30 mph after midnight. Lows 14 to 21.
.MONDAY...Mostly cloudy. Slight chance of snow showers in the
morning. West winds 10 to 15 mph. Highs 17 to 24.
.MONDAY NIGHT...Partly cloudy. West winds around 10 mph. Lows 12 to
19.

$$

ORZ050-260200-
Salt Creek Area 5000 to 7000 feet-
356 AM PST Sat Nov 25 2017

.TODAY...Partly cloudy in the morning, then cloudy with chance of
snow in the afternoon. South winds 10 to 20 mph with gusts to
30 mph. Highs 33 to 40.
.TONIGHT...Mostly cloudy. Chance of rain in the evening, then slight
chance of rain after midnight. South winds 10 to 20 mph with gusts
to 35 mph. Lows 31 to 38.
.SUNDAY...Mostly cloudy with chance of rain in the morning, then
rain likely in the afternoon. South winds 15 to 25 mph with gusts to
35 mph. Highs 36 to 43.
.SUNDAY NIGHT...Showers in the evening, then snow showers likely
after midnight. Snow accumulation up to 1 inch. Southwest winds
15 to 25 mph with gusts to 35 mph becoming northwest around 10 mph
after midnight. Lows 22 to 29.
.MONDAY...Mostly cloudy. Slight chance of snow showers in the
morning. Light winds becoming west around 10 mph in the afternoon.
Highs 28 to 35.
.MONDAY NIGHT...Partly cloudy. Light winds. Lows 18 to 25.

$$

ORZ050-062-260200-
Clear Creek Area 6000 to 8000 feet-
356 AM PST Sat Nov 25 2017

.TODAY...Partly cloudy in the morning, then cloudy with chance of
snow in the afternoon. Little or no snow accumulation. South winds
10 to 15 mph with gusts to 25 mph. Highs 31 to 38.
.TONIGHT...Rain likely in the evening, then slight chance of rain
after midnight. South winds 10 to 20 mph with gusts to 35 mph. Lows
29 to 36.
.SUNDAY...Chance of rain in the morning, then rain in the afternoon.
South winds 15 to 20 mph. Gusts up to 35 mph in the morning. Highs
33 to 40.
.SUNDAY NIGHT...Snow showers and showers in the evening, then snow
showers likely after midnight. Snow accumulation up to 2 inches.
Southwest winds 15 to 25 mph shifting to the northwest 10 to 15 mph
after midnight. Lows 19 to 26.
.MONDAY...Mostly cloudy with slight chance of snow showers in the
morning, then cloudy in the afternoon. Light winds. Highs 24 to 31.
.MONDAY NIGHT...Mostly cloudy with slight chance of snow. Light
winds. Lows 17 to 24.

$$

ORZ050-062-260200-
Catherine Creek Area 6000 to 8000 feet-
356 AM PST Sat Nov 25 2017

.TODAY...Partly cloudy in the morning, then cloudy with chance of
snow in the afternoon. South winds 10 to 20 mph. Gusts up to 30 mph
in the afternoon. Highs 32 to 39.
.TONIGHT...Mostly cloudy. Chance of rain in the evening, then slight
chance of rain after midnight. South winds 15 to 25 mph with gusts
to 35 mph. Lows 30 to 37.
.SUNDAY...Chance of rain in the morning, then rain likely in the
afternoon. South winds 15 to 25 mph with gusts to 35 mph. Highs
35 to 42.
.SUNDAY NIGHT...Snow showers in the evening, then snow showers
likely after midnight. Snow accumulation up to 2 inches. Southwest
winds 15 to 25 mph with gusts to 35 mph shifting to the northwest
10 to 15 mph after midnight. Lows 18 to 25.
.MONDAY...Mostly cloudy. Slight chance of snow showers in the
morning. West winds 10 to 15 mph. Highs 21 to 28.
.MONDAY NIGHT...Partly cloudy. West winds around 10 mph. Lows 16 to
23.

$$

ORZ050-062-260200-
Norway Area 7000 to 10000 feet-
356 AM PST Sat Nov 25 2017

.TODAY...Partly cloudy in the morning, then cloudy with chance of
snow in the afternoon. Little or no snow accumulation. South winds
10 to 15 mph with gusts to 25 mph. Highs 30 to 37.
.TONIGHT...Snow and rain likely in the evening, then chance of rain
and snow after midnight. Little or no snow accumulation. South winds
15 to 20 mph with gusts to 35 mph. Lows 28 to 35.
.SUNDAY...Chance of rain and snow in the morning, then rain and snow
in the afternoon. Snow accumulation up to 1 inch. South winds 15 to
25 mph with gusts to 35 mph. Highs 33 to 40.
.SUNDAY NIGHT...Snow showers in the evening, then snow showers
likely after midnight. Snow accumulation up to 2 inches. Southwest
winds 20 to 30 mph with gusts to 40 mph becoming northwest 10 to
15 mph with gusts to 25 mph after midnight. Lows 16 to 23.
.MONDAY...Mostly cloudy with slight chance of snow showers in the
morning, then cloudy in the afternoon. Light winds becoming west
around 10 mph in the afternoon. Highs 20 to 27.
.MONDAY NIGHT...Mostly cloudy. Slight chance of snow in the evening,
then chance of snow after midnight. Northwest winds around 10 mph.
Lows 14 to 21.

$$

ORZ062-503-260200-
Anthony Lakes Area 7000 to 9000 feet-
356 AM PST Sat Nov 25 2017

.TODAY...Partly cloudy in the morning, then cloudy with chance of
snow in the afternoon. Little or no snow accumulation. South winds
15 to 25 mph. Highs 30 to 37.
.TONIGHT...Mostly cloudy. Chance of rain and snow in the evening,
then slight chance of rain and snow after midnight. Little or no
snow accumulation. South winds 20 to 30 mph with gusts to 45 mph.
Lows 28 to 35.
.SUNDAY...Chance of rain and snow in the morning, then rain and snow
likely in the afternoon. Snow accumulation up to 1 inch. South winds
20 to 30 mph with gusts to 40 mph. Highs 32 to 39.
.SUNDAY NIGHT...Snow showers in the evening, then snow showers
likely after midnight. Snow accumulation up to 2 inches. Southwest
winds 15 to 25 mph with gusts to 35 mph shifting to the west 10 to
15 mph with gusts to 25 mph after midnight. Lows 14 to 21.
.MONDAY...Mostly cloudy with slight chance of snow showers in the
morning, then cloudy in the afternoon. West winds 10 to 20 mph.
Highs 16 to 23.
.MONDAY NIGHT...Partly cloudy with slight chance of snow. West winds
around 10 mph. Lows 12 to 19.

$$

ORZ502-260200-
Blue Mountains 4000 to 6000 feet-
356 AM PST Sat Nov 25 2017

.TODAY...Partly cloudy in the morning, then rain likely in the
afternoon. Southwest winds 10 to 15 mph. Gusts up to 25 mph in the
afternoon. Highs 36 to 43.
.TONIGHT...Cloudy. Chance of rain in the evening, then slight chance
of rain after midnight. Southwest winds 10 to 15 mph with gusts to
35 mph. Lows 33 to 40.
.SUNDAY...Mostly cloudy with slight chance of rain in the morning,
then rain likely in the afternoon. West winds 10 to 15 mph with
gusts to 40 mph shifting to the south 10 to 20 mph with gusts to
30 mph in the afternoon. Highs 41 to 48.
.SUNDAY NIGHT...Snow showers and showers in the evening, then chance
of snow showers after midnight. Snow accumulation up to 3 inches.
West winds 10 to 20 mph with gusts to 30 mph. Lows 23 to 30.
.MONDAY...Mostly cloudy with slight chance of snow showers in the
morning, then partly cloudy in the afternoon. West winds 10 to
15 mph with gusts to 30 mph. Highs 31 to 37.
.MONDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. Southwest winds 10 to 15 mph. Lows 20 to 27.

$$

ORZ509-260200-
Broken Top-
356 AM PST Sat Nov 25 2017

.TODAY...Mostly cloudy in the morning, then rain and snow likely in
the afternoon. Snow accumulation up to 1 inch. Southwest winds 20 to
30 mph with gusts to 40 mph. Highs 34 to 41.
.TONIGHT...Mostly cloudy. Slight chance of rain and snow in the
evening. South winds 25 to 40 mph with gusts to 55 mph. Lows 28 to
35.
.SUNDAY...Rain in the morning, then snow and rain in the afternoon.
Snow accumulation up to 2 inches. Southwest winds 30 to 40 mph with
gusts to 55 mph decreasing to 15 to 25 mph with gusts to 35 mph in
the afternoon. Highs 33 to 40.
.SUNDAY NIGHT...Snow showers likely in the evening, then chance of
snow showers after midnight. Snow accumulation up to 1 inch. West
winds 20 to 30 mph with gusts to 40 mph decreasing to 15 to 20 mph
with gusts to 30 mph after midnight. Lows 15 to 22.
.MONDAY...Mostly cloudy. Slight chance of snow showers in the
morning. West winds 10 to 20 mph with gusts to 30 mph. Highs 22 to
29.
.MONDAY NIGHT...Mostly cloudy in the evening then becoming partly
cloudy. West winds 10 to 15 mph. Lows 17 to 24.

$$

ORZ509-260200-
Tam McArthur Rim-
356 AM PST Sat Nov 25 2017

.TODAY...Mostly cloudy in the morning, then rain and snow likely in
the afternoon. Snow accumulation up to 1 inch. Southwest winds 15 to
25 mph with gusts to 40 mph. Highs 35 to 42.
.TONIGHT...Mostly cloudy. Slight chance of rain in the evening.
South winds 25 to 35 mph with gusts to 55 mph. Lows 29 to 36.
.SUNDAY...Rain likely in the morning, then snow and rain in the
afternoon. Snow accumulation up to 2 inches. Southwest winds 30 to
40 mph with gusts to 55 mph decreasing to 15 to 25 mph with gusts to
35 mph in the afternoon. Highs 33 to 40.
.SUNDAY NIGHT...Snow showers likely in the evening, then chance of
snow showers after midnight. Snow accumulation up to 1 inch. West
winds 20 to 30 mph with gusts to 40 mph decreasing to 15 to 20 mph
after midnight. Lows 15 to 22.
.MONDAY...Mostly cloudy. Slight chance of snow showers in the
morning. West winds 10 to 15 mph. Gusts up to 25 mph in the morning.
Highs 22 to 29.
.MONDAY NIGHT...Mostly cloudy in the evening then becoming partly
cloudy. West winds around 10 mph. Lows 17 to 24.

$$

ORZ509-260200-
Newberry Crater-
356 AM PST Sat Nov 25 2017

.TODAY...Mostly cloudy with slight chance of snow in the morning,
then cloudy with chance of rain in the afternoon. Little or no snow
accumulation. South 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 37 to 44.
.TONIGHT...Mostly cloudy. Slight chance of rain in the evening.
South winds 30 to 40 mph with gusts to 60 mph. Lows 31 to 38.
.SUNDAY...Mostly cloudy with chance of rain in the morning, then
rain and snow in the afternoon. Snow accumulation up to 2 inches.
South winds 30 to 40 mph with gusts to 60 mph becoming southwest
20 to 30 mph with gusts to 40 mph in the afternoon. Highs 36 to 43.
.SUNDAY NIGHT...Snow showers likely in the evening, then chance of
snow showers after midnight. Snow accumulation up to 1 inch. West
winds 20 to 30 mph with gusts to 40 mph decreasing to 15 to 20 mph
with gusts to 30 mph after midnight. Lows 15 to 22.
.MONDAY...Mostly cloudy in the morning then becoming partly cloudy.
West winds 10 to 15 mph. Gusts up to 25 mph in the morning. Highs
23 to 30.
.MONDAY NIGHT...Partly cloudy. West winds around 10 mph. Lows 18 to
25.

$$


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