Avalanche Weather Guidance
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
959
FWUS46 KPDT 181056
AVGPDT
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE PENDLETON OR
356 AM PDT MON AUG 18 2025
...BROKEN TOP...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER SC SC SC SC SC SC FW FW FW CL CL FW SC FW FW FW FW
CLOUD COVER (%) 50 50 30 30 25 40 25 10 10 0 5 10 30 20 10 10 10
TEMPERATURE 48 48 53 58 58 51 48 46 47 50 57 62 60 52 48 47 46
MAX/MIN TEMP 59 45 64 44
WIND DIR SW SW SW SW SW SW S SW SW SW S NW NW W W W W
WIND (MPH) 4 4 5 5 6 5 2 2 2 3 3 4 8 6 4 3 3
WIND GUST (MPH)
PRECIP PROB (%) 5 5 5 5 5 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE
6 HOUR QPF 0.01 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) 11.5 10.7 10.8 11.4 11.5 11.3 10.7 10.6 10.5 10.3 10.4 11.6 12.0 12.0 11.3 11.1 10.8
...TAM MCARTHUR RIM...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER SC SC SC SC SC SC SC FW FW CL CL FW SC FW FW FW FW
CLOUD COVER (%) 45 45 30 30 35 45 30 10 10 5 5 15 30 20 10 10 10
TEMPERATURE 48 49 55 60 60 52 49 47 47 51 59 64 62 53 49 47 47
MAX/MIN TEMP 61 46 65 45
WIND DIR SW SW SW SW SW SW S SW SW SW SE NW NW W W W W
WIND (MPH) 4 4 4 5 6 5 2 2 2 2 2 3 8 8 4 3 3
WIND GUST (MPH)
PRECIP PROB (%) 5 5 5 5 5 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE
6 HOUR QPF 0.01 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) 11.5 10.7 10.9 11.4 11.6 11.4 10.7 10.6 10.5 10.3 10.4 11.7 12.0 12.0 11.4 11.1 10.9
...NEWBERRY CRATER...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER SC SC FW FW FW SC FW CL FW CL CL FW FW FW FW CL FW
CLOUD COVER (%) 40 35 15 15 20 40 15 5 15 5 0 10 20 15 10 5 10
TEMPERATURE 48 48 54 62 64 57 50 49 48 50 59 66 66 57 51 50 48
MAX/MIN TEMP 66 47 69 47
WIND DIR SW SW SW SW W NW N SW S S SW W NW NW NW NW NW
WIND (MPH) 3 5 8 6 6 6 5 4 3 3 3 5 6 8 6 5 4
WIND GUST (MPH)
PRECIP PROB (%) 5 0 0 5 5 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE
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) 11.3 10.8 11.0 11.6 11.8 11.5 11.0 10.5 10.4 10.2 10.3 11.3 12.2 12.0 11.6 11.5 11.2
...WALLOWA MOUNTAINS (8,000 FT TO 9,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER FW FW FW FW FW FW SC FW FW CL CL FW SC FW FW FW FW
CLOUD COVER (%) 20 10 15 15 10 20 25 15 15 0 0 15 25 20 10 10 10
TEMPERATURE 49 54 61 65 65 57 51 51 50 55 65 69 68 58 52 50 48
MAX/MIN TEMP 67 49 71 47
WIND DIR SW S SW SW SW W S S S SE NE W NW N NW NW W
WIND (MPH) 5 5 8 9 8 5 5 4 4 3 3 5 5 8 8 6 6
WIND GUST (MPH)
PRECIP PROB (%) 10 5 10 10 5 5 0 0 0 0 0 0 5 5 5 5 5
PRECIP TYPE
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) 12.2 12.2 12.5 12.6 12.6 12.7 12.6 12.2 11.7 11.3 11.4 12.3 12.8 12.7 12.4 12.2 12.0
...SALT CREEK AREA (5,000 FT TO 7,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER FW FW FW FW FW FW SC FW FW CL CL FW FW FW FW FW FW
CLOUD COVER (%) 25 10 10 15 10 20 30 10 15 0 0 10 25 25 10 5 10
TEMPERATURE 53 61 70 73 74 65 58 56 54 61 72 78 77 65 59 56 53
MAX/MIN TEMP 75 54 79 53
WIND DIR S S S S SW NW NW NW NW N E SW W NW NW NW NW
WIND (MPH) 5 5 9 10 9 6 6 5 5 4 4 5 6 8 9 8 6
WIND GUST (MPH)
PRECIP PROB (%) 10 5 10 10 5 5 0 0 0 0 0 0 5 5 5 5 0
PRECIP TYPE
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) 12.3 12.3 12.5 12.7 12.6 12.8 12.7 12.2 11.7 11.3 11.5 12.5 12.8 12.7 12.4 12.2 12.0
...CLEAR CREEK AREA (6,000 FT TO 8,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER SC FW FW FW FW FW SC FW FW CL CL FW FW FW FW FW FW
CLOUD COVER (%) 35 15 10 15 10 25 30 15 15 0 0 10 25 20 10 5 10
TEMPERATURE 52 58 65 69 71 63 58 55 54 61 69 74 74 64 58 54 53
MAX/MIN TEMP 71 54 75 52
WIND DIR SW S S S SW NW N N NW W S SW SW N N N N
WIND (MPH) 4 5 11 12 10 6 6 5 5 4 5 8 6 8 9 8 6
WIND GUST (MPH)
PRECIP PROB (%) 10 5 10 10 5 5 0 0 0 0 0 0 5 5 0 0 0
PRECIP TYPE
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) 12.5 12.4 12.5 12.8 12.7 12.9 12.7 12.2 11.7 11.3 11.6 12.5 12.8 12.6 12.3 12.1 11.9
...CATHERINE CREEK AREA (6,000 FT TO 8,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER FW FW FW FW FW FW FW FW FW CL CL FW FW FW FW CL FW
CLOUD COVER (%) 25 20 15 10 10 20 20 10 10 5 0 10 25 10 10 5 10
TEMPERATURE 53 57 64 69 70 61 57 55 54 58 67 72 73 62 56 54 52
MAX/MIN TEMP 71 53 74 51
WIND DIR SE S S S SW NE E SE SE S SW SW W N N N N
WIND (MPH) 5 5 9 9 8 6 5 5 4 3 5 5 5 9 10 9 6
WIND GUST (MPH)
PRECIP PROB (%) 5 5 10 10 5 5 0 0 0 0 0 0 5 5 0 0 0
PRECIP TYPE
6 HOUR QPF 0.01 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) 12.4 12.4 12.4 12.7 12.7 12.5 12.3 11.9 11.7 11.2 11.1 12.2 12.8 12.6 12.3 12.1 11.8
...NORWAY AREA (7,000 FT TO 10,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER SC FW FW FW FW FW SC FW FW CL CL FW FW FW FW CL FW
CLOUD COVER (%) 35 20 15 15 10 25 30 15 15 5 0 10 25 20 10 5 10
TEMPERATURE 49 55 60 64 65 59 55 53 52 58 64 68 68 60 55 52 50
MAX/MIN TEMP 65 52 69 50
WIND DIR SW S S S SW W NE N W SW S SW W N N N N
WIND (MPH) 5 8 11 13 12 8 8 6 5 4 5 8 8 10 11 10 10
WIND GUST (MPH)
PRECIP PROB (%) 10 0 10 10 5 5 0 0 0 0 0 0 5 5 0 0 0
PRECIP TYPE
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) 12.5 12.4 12.5 12.8 12.6 12.9 12.6 12.2 11.7 11.3 11.4 12.5 12.8 12.6 12.3 12.1 11.9
...ANTHONY LAKES AREA (8,000 FT TO 10,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER FW FW FW FW FW SC FW FW FW CL CL FW SC FW FW FW FW
CLOUD COVER (%) 15 10 25 25 15 30 10 10 10 0 0 10 30 10 5 5 5
TEMPERATURE 50 51 59 64 65 54 51 50 50 52 62 67 65 54 51 49 48
MAX/MIN TEMP 66 47 69 46
WIND DIR S S S SW W NW SW S SW W NW NW NW NW NW NW W
WIND (MPH) 4 5 6 6 6 6 8 5 5 4 4 5 6 9 10 9 8
WIND GUST (MPH)
PRECIP PROB (%) 5 5 10 10 5 0 0 0 0 0 5 5 5 5 0 0 0
PRECIP TYPE
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.01 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) 12.2 12.2 12.4 12.5 12.2 11.8 11.6 11.5 11.3 11.1 11.0 12.2 12.6 12.6 12.1 11.9 11.8
...BLUE MOUNTAINS (4,000 FT TO 6,000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
TIME (LT) 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05
5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A
CLOUD COVER FW FW FW FW FW FW FW FW FW CL CL CL FW FW CL FW CL
CLOUD COVER (%) 20 20 10 15 10 20 20 20 5 0 0 5 20 10 5 5 5
TEMPERATURE 54 59 67 73 72 64 59 56 53 59 69 76 74 64 59 56 53
MAX/MIN TEMP 74 52 76 52
WIND DIR SW W W NW NW NW NW NW NW W NW NW NW NW W W W
WIND (MPH) 2 2 4 5 5 4 3 2 2 2 3 4 6 4 3 3 3
WIND GUST (MPH)
PRECIP PROB (%) 10 5 5 5 5 5 0 0 0 0 0 0 5 5 0 0 0
PRECIP TYPE
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) 11.9 12.1 12.1 12.4 12.4 11.9 11.6 11.5 11.3 11.1 10.9 11.4 12.5 12.5 12.3 11.9 11.7
$$
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN