Avalanche Weather Guidance
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
571
FWUS46 KPDT 172157
AVGPDT
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE PENDLETON OR
256 PM PDT SUN AUG 17 2025
...BROKEN TOP...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER OV OV BK BK BK SC FW FW FW SC FW FW FW FW CL FW FW
CLOUD COVER (%) 85 75 65 50 60 50 15 15 20 30 10 10 5 5 5 15 15
TEMPERATURE 59 51 48 48 47 48 53 59 58 51 48 46 46 50 57 63 61
MIN/MAX TEMP 46 61 45 64
WIND DIR W SW SW SW SW SW SW SW SW W W SW SW S S NW NW
WIND (MPH) 5 4 4 4 4 5 5 6 6 5 3 2 3 3 3 3 8
WIND GUST (MPH)
PRECIP PROB (%) 20 20 10 10 5 5 0 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE T T
6 HOUR QPF 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.8 11.7 11.8 11.6 11.0 9.9 10.4 10.9 11.1 11.1 10.5 10.3 10.5 10.3 10.4 11.4 11.9
...TAM MCARTHUR RIM...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER OV OV BK SC BK SC FW FW FW SC FW FW FW FW CL FW FW
CLOUD COVER (%) 85 75 65 45 55 45 20 20 25 30 15 10 5 5 5 15 15
TEMPERATURE 60 53 49 48 48 49 55 61 60 53 49 47 47 51 59 64 62
MIN/MAX TEMP 47 62 46 65
WIND DIR SW SW SW SW SW SW SW SW SW W W SW SW S SE NW NW
WIND (MPH) 5 4 4 4 4 5 5 5 6 5 3 2 2 3 2 3 6
WIND GUST (MPH)
PRECIP PROB (%) 20 20 10 10 5 5 0 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE T T
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.8 11.7 11.8 11.6 11.0 9.9 10.5 11.0 11.2 11.1 10.5 10.3 10.5 10.3 10.4 11.4 11.9
...NEWBERRY CRATER...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER OV OV SC SC BK SC FW FW FW SC FW CL FW FW CL FW FW
CLOUD COVER (%) 80 85 40 45 55 45 10 10 15 30 5 5 10 5 0 10 15
TEMPERATURE 62 57 50 49 48 48 54 62 64 57 50 49 48 50 59 65 67
MIN/MAX TEMP 47 65 47 69
WIND DIR W NW W SW SW SW SW SW W NW NW NW W S S SW W
WIND (MPH) 5 5 5 4 3 6 8 8 6 6 6 4 2 3 4 5 6
WIND GUST (MPH)
PRECIP PROB (%) 20 20 5 5 5 0 0 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE T T
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.8 11.9 12.0 11.7 11.4 10.5 10.6 11.5 11.8 11.4 11.0 10.4 10.3 10.2 10.2 11.2 12.0
...WALLOWA MOUNTAINS (8,000 FT TO 9,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER SC SC OV OV SC FW FW FW FW FW FW FW FW CL CL FW FW
CLOUD COVER (%) 25 40 75 80 30 10 10 15 15 15 15 15 10 0 0 15 20
TEMPERATURE 60 55 50 50 49 53 61 65 65 57 52 51 50 54 64 69 68
MIN/MAX TEMP 48 67 49 70
WIND DIR W SW S S S S SW SW SW NW NW W SW N NW W NW
WIND (MPH) 3 3 4 5 5 5 8 9 8 5 5 4 4 3 3 5 5
WIND GUST (MPH)
PRECIP PROB (%) 10 10 20 20 10 5 10 20 0 0 0 0 0 0 0 0 5
PRECIP TYPE T T T
6 HOUR QPF 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.7 11.9 12.3 12.3 12.3 12.3 12.4 12.6 12.8 12.5 12.7 12.4 12.2 11.7 12.0 12.6 12.8
...SALT CREEK AREA (5,000 FT TO 7,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER FW SC OV OV SC FW FW FW FW FW FW FW FW CL CL FW FW
CLOUD COVER (%) 20 40 75 80 30 10 10 10 10 20 15 10 10 0 0 10 20
TEMPERATURE 68 61 56 55 54 60 69 73 73 65 58 56 54 61 72 77 77
MIN/MAX TEMP 53 75 53 79
WIND DIR W NW W S S S S S SW NW NW NW NW N E SW W
WIND (MPH) 4 4 4 5 5 5 9 10 9 6 6 5 5 4 4 5 6
WIND GUST (MPH)
PRECIP PROB (%) 10 10 20 20 10 5 10 10 0 0 0 0 0 0 0 0 5
PRECIP TYPE T T
6 HOUR QPF 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.7 11.9 12.3 12.4 12.4 12.3 12.5 12.5 12.6 12.6 12.8 12.4 12.2 11.7 12.1 12.5 12.7
...CLEAR CREEK AREA (6,000 FT TO 8,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER SC BK OV OV SC FW FW FW FW FW FW FW FW CL CL FW FW
CLOUD COVER (%) 30 50 80 80 35 15 10 10 10 20 15 10 10 0 0 10 15
TEMPERATURE 65 60 55 54 53 57 65 69 70 63 58 55 54 60 69 74 74
MIN/MAX TEMP 52 71 54 75
WIND DIR SW N NE SW S S S S SW W N N NW N S SW SW
WIND (MPH) 5 4 4 4 4 6 11 12 11 6 6 6 5 4 5 8 8
WIND GUST (MPH)
PRECIP PROB (%) 10 10 20 20 10 5 10 10 0 0 0 0 0 0 0 0 5
PRECIP TYPE T T
6 HOUR QPF 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.7 12.0 12.5 12.5 12.5 12.4 12.5 12.6 12.6 12.8 12.8 12.4 12.1 11.6 12.0 12.4 12.6
...CATHERINE CREEK AREA (6,000 FT TO 8,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER SC SC OV OV SC FW FW FW FW FW FW FW FW CL CL FW FW
CLOUD COVER (%) 35 50 80 80 30 20 10 15 10 20 15 10 10 5 0 5 15
TEMPERATURE 65 60 55 54 53 55 64 69 70 61 57 55 54 58 67 72 73
MIN/MAX TEMP 52 70 53 74
WIND DIR SW E SE SE SE S S S SW NW NE NE NE NW SW SW W
WIND (MPH) 3 4 4 4 4 5 9 9 8 5 5 5 5 3 5 5 5
WIND GUST (MPH)
PRECIP PROB (%) 20 20 30 20 5 5 10 10 0 0 0 0 0 0 0 0 5
PRECIP TYPE T T R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.6 12.0 12.4 12.4 12.4 12.3 12.3 12.7 12.6 12.2 12.5 12.2 12.1 11.6 11.7 12.3 12.6
...NORWAY AREA (7,000 FT TO 10,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER SC SC OV OV SC FW FW FW FW FW FW FW FW CL CL FW FW
CLOUD COVER (%) 35 50 80 80 35 20 10 10 10 20 20 5 10 5 0 5 15
TEMPERATURE 60 56 52 51 50 54 59 64 65 58 55 53 52 57 64 68 69
MIN/MAX TEMP 49 65 51 70
WIND DIR SW NE E S S S S S SW W N N N N S SW SW
WIND (MPH) 5 4 4 4 5 8 11 12 12 6 6 6 5 4 5 8 8
WIND GUST (MPH)
PRECIP PROB (%) 10 10 20 20 10 5 10 10 0 0 0 0 0 0 0 0 5
PRECIP TYPE T T
6 HOUR QPF 0.00 0.03 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.8 12.0 12.5 12.5 12.5 12.4 12.4 12.6 12.6 12.6 12.8 12.4 12.2 11.6 11.9 12.4 12.6
...ANTHONY LAKES AREA (8,000 FT TO 10,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER BK OV OV SC FW FW FW SC FW FW FW CL FW CL CL FW FW
CLOUD COVER (%) 60 80 75 45 25 15 20 35 20 25 10 5 5 5 0 10 20
TEMPERATURE 60 54 51 51 50 50 58 63 64 54 51 50 49 51 61 66 65
MIN/MAX TEMP 48 66 47 69
WIND DIR W NE S S S S SW SW W NW NW NW W NW N NW NW
WIND (MPH) 3 3 4 4 4 5 6 6 5 6 8 6 5 4 4 5 6
WIND GUST (MPH)
PRECIP PROB (%) 20 20 20 20 5 5 5 10 0 0 0 0 0 0 5 5 5
PRECIP TYPE T T R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 11.8 12.0 12.3 12.4 12.0 12.1 12.2 12.4 12.2 11.8 12.1 11.9 12.0 11.5 11.4 12.4 12.6
...BLUE MOUNTAINS (4,000 FT TO 6,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17
5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P
CLOUD COVER SC BK BK BK SC FW FW FW FW FW FW FW CL CL CL CL FW
CLOUD COVER (%) 35 60 60 55 25 20 10 10 10 15 5 10 5 5 0 5 10
TEMPERATURE 71 63 58 57 55 58 67 73 72 64 59 56 53 59 69 76 74
MIN/MAX TEMP 54 74 53 77
WIND DIR NW N NE NW W W W NW NW NW NW W W W NW NW NW
WIND (MPH) 3 3 3 2 2 2 4 5 5 5 4 3 2 2 3 4 6
WIND GUST (MPH)
PRECIP PROB (%) 5 5 20 20 10 5 5 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE T T
6 HOUR QPF 0.00 0.06 0.00 0.00 0.00 0.00 0.00 0.00
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 10.8 11.5 11.9 12.0 12.0 11.8 11.8 12.2 12.2 12.0 11.7 11.8 11.8 11.6 11.3 11.9 12.4
$$
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN