Snow Avalanche Guidance
Issued by NWS Pendleton, OR

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FWUS46 KPDT 222156
SAGPDT

Avalanche Guidance
National Weather Service Pendleton OR
256 PM PDT Mon May 22 2017

ORZ050-231300-
Wallowa Mountains 8000 to 9000 feet-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Light winds. Lows 39 to 46.
.TUESDAY...Sunny. Southwest winds around 10 mph in the morning
becoming light. Highs 56 to 63.
.TUESDAY NIGHT...Clear. Southwest winds 10 to 15 mph. Gusts up to
25 mph after midnight. Lows 30 to 37.
.WEDNESDAY...Sunny in the morning then becoming partly cloudy.
Northwest winds 15 to 25 mph with gusts to 35 mph decreasing to
10 to 15 mph in the afternoon. Highs 36 to 43.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with slight chance of snow showers after midnight. West winds 10 to
15 mph shifting to the north after midnight. Lows 22 to 29.
.THURSDAY...Mostly cloudy. Chance of snow showers in the morning,
then chance of snow showers and slight chance of thunderstorms in
the afternoon. Snow accumulation up to 2 inches. North winds around
10 mph. Highs 33 to 40.

$$

ORZ050-231300-
Salt Creek Area 5000 to 7000 feet-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Light winds. Lows 41 to 48.
.TUESDAY...Sunny. South winds around 10 mph. Highs 64 to 71.
.TUESDAY NIGHT...Clear. Southwest winds around 10 mph. Lows 36 to
43.
.WEDNESDAY...Sunny. Northwest winds 10 to 15 mph. Highs 48 to 55.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with slight chance of showers and snow showers after midnight.
Northwest winds around 10 mph in the evening becoming light. Lows
30 to 37.
.THURSDAY...Mostly cloudy. Slight chance of showers and snow showers
in the morning, then chance of showers and slight chance of
thunderstorms in the afternoon. No snow accumulation. Light winds
becoming north around 10 mph in the afternoon. Highs 43 to 50.

$$

ORZ050-062-231300-
Clear Creek Area 6000 to 8000 feet-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Light winds. Lows 38 to 45.
.TUESDAY...Sunny. Southwest winds around 10 mph. Highs 61 to 68.
.TUESDAY NIGHT...Clear. Southwest winds 10 to 15 mph. Lows 34 to 41.
.WEDNESDAY...Sunny. Northwest winds 10 to 15 mph. Highs 44 to 51.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with slight chance of snow showers and showers after midnight.
Northwest winds 10 to 15 mph. Lows 27 to 34.
.THURSDAY...Mostly cloudy. Chance of snow showers and slight chance
of showers in the morning, then chance of showers, snow showers and
slight chance of thunderstorms in the afternoon. Snow accumulation
up to 1 inch. North winds around 10 mph. Highs 40 to 47.

$$

ORZ050-062-231300-
Catherine Creek Area 6000 to 8000 feet-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Light winds. Lows 42 to 49.
.TUESDAY...Sunny. South winds around 10 mph in the morning becoming
light. Highs 62 to 69.
.TUESDAY NIGHT...Clear. West winds 10 to 15 mph. Lows 33 to 40.
.WEDNESDAY...Sunny in the morning then becoming partly cloudy.
Northwest winds 10 to 15 mph. Highs 41 to 48.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with slight chance of snow showers after midnight. Northwest winds
10 to 15 mph. Lows 27 to 34.
.THURSDAY...Mostly cloudy. Slight chance of showers and snow showers
in the morning, then chance of showers, snow showers and slight
chance of thunderstorms in the afternoon. Light winds becoming north
around 10 mph in the afternoon. Highs 39 to 46.

$$

ORZ050-062-231300-
Norway Area 7000 to 10000 feet-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Light winds. Lows 40 to 47.
.TUESDAY...Sunny. Southwest winds around 10 mph in the morning
becoming light. Highs 57 to 64.
.TUESDAY NIGHT...Clear. Southwest winds 10 to 15 mph. Lows 32 to 39.
.WEDNESDAY...Sunny in the morning then becoming partly cloudy.
Northwest winds 10 to 15 mph. Gusts up to 25 mph in the morning.
Highs 40 to 47.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then mostly cloudy
with slight chance of snow showers after midnight. Northwest winds
10 to 15 mph. Lows 24 to 31.
.THURSDAY...Mostly cloudy. Chance of snow showers in the morning,
then chance of snow showers, showers and slight chance of
thunderstorms in the afternoon. Snow accumulation up to 1 inch.
North winds around 10 mph. Highs 37 to 44.

$$

ORZ062-503-231300-
Anthony Lakes Area 7000 to 9000 feet-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Light winds. Lows 40 to 47.
.TUESDAY...Sunny. Southwest winds around 10 mph in the morning
becoming light. Highs 63 to 70.
.TUESDAY NIGHT...Clear. West winds 10 to 15 mph. Lows 31 to 38.
.WEDNESDAY...Sunny in the morning then becoming partly cloudy.
Northwest winds 15 to 20 mph with gusts to 30 mph. Highs 40 to 47.
.WEDNESDAY NIGHT...Clear in the evening, then partly cloudy with
slight chance of snow showers after midnight. Northwest winds 10 to
15 mph. Gusts up to 25 mph in the evening. Lows 25 to 32.
.THURSDAY...Mostly cloudy. Slight chance of snow showers in the
morning, then chance of snow showers, showers and slight chance of
thunderstorms in the afternoon. North winds around 10 mph. Highs
38 to 45.

$$

ORZ502-231300-
Blue Mountains 4000 to 6000 feet-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Light winds. Lows 42 to 49.
.TUESDAY...Sunny. South winds around 10 mph in the morning becoming
light. Highs 68 to 75.
.TUESDAY NIGHT...Clear. West winds 10 to 15 mph with gusts to
30 mph. Lows 34 to 41.
.WEDNESDAY...Sunny. West winds up to 10 mph increasing to 10 to
15 mph in the afternoon. Highs 50 to 56.
.WEDNESDAY NIGHT...Partly cloudy in the evening then becoming mostly
cloudy. West winds 10 to 15 mph. Lows 30 to 37.
.THURSDAY...Mostly cloudy. Slight chance of showers in the morning,
then chance of showers and slight chance of thunderstorms in the
afternoon. Light winds becoming northwest around 10 mph in the
afternoon. Highs 46 to 53.

$$

ORZ509-231300-
Broken Top-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Northeast winds around 10 mph in the evening
becoming light. Lows 45 to 52.
.TUESDAY...Sunny. Southwest winds around 10 mph shifting to the west
in the afternoon. Highs 66 to 73.
.TUESDAY NIGHT...Clear. West winds 10 to 15 mph with gusts to
25 mph. Lows 35 to 42.
.WEDNESDAY...Sunny. Northwest winds 10 to 15 mph. Gusts up to 25 mph
in the afternoon. Highs 48 to 55.
.WEDNESDAY NIGHT...Clear. Northwest winds 10 to 15 mph with gusts to
25 mph in the evening becoming light. Lows 28 to 35.
.THURSDAY...Sunny in the morning then becoming partly cloudy. Light
winds becoming northeast around 10 mph in the afternoon. Highs 48 to
55.

$$

ORZ509-231300-
Tam McArthur Rim-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Northeast winds around 10 mph in the evening
becoming light. Lows 46 to 53.
.TUESDAY...Sunny. Light winds becoming west around 10 mph in the
afternoon. Highs 66 to 73.
.TUESDAY NIGHT...Clear. West winds 10 to 15 mph. Lows 35 to 42.
.WEDNESDAY...Sunny. Northwest winds 10 to 15 mph. Gusts up to 25 mph
in the afternoon. Highs 47 to 54.
.WEDNESDAY NIGHT...Clear. Northwest winds 10 to 15 mph with gusts to
25 mph in the evening becoming light. Lows 28 to 35.
.THURSDAY...Sunny in the morning then becoming partly cloudy. Light
winds becoming northeast around 10 mph in the afternoon. Highs 48 to
55.

$$

ORZ509-231300-
Newberry Crater-
256 PM PDT Mon May 22 2017

.TONIGHT...Clear. Northeast winds around 10 mph in the evening
becoming light. Lows 45 to 52.
.TUESDAY...Sunny. South winds around 10 mph shifting to the west in
the afternoon. Highs 68 to 75.
.TUESDAY NIGHT...Clear. West winds 10 to 15 mph. Lows 35 to 42.
.WEDNESDAY...Sunny. Northwest winds 10 to 20 mph. Highs 50 to 57.
.WEDNESDAY NIGHT...Clear. Northwest winds 10 to 20 mph in the
evening becoming light. Lows 27 to 34.
.THURSDAY...Sunny in the morning then becoming partly cloudy. Light
winds becoming northeast around 10 mph in the afternoon. Highs 49 to
56.

$$


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