Avalanche Weather Guidance
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
002
FWUS46 KPDT 112156
AVGPDT
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE PENDLETON OR
256 PM PDT SUN MAY 11 2025
...BROKEN TOP...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 BK OV OV OV OV OV OV BK OV BK OV OV OV OV BK BK
CLOUD COVER (%) 65 65 85 80 90 90 95 95 70 75 70 70 75 75 80 70 55
TEMPERATURE 34 31 29 28 26 26 29 30 30 28 27 27 26 27 29 31 32
MIN/MAX TEMP 25 31 26 32
WIND DIR SW SW SW SW SW SW SW W W W W W W W W W W
WIND (MPH) 14 9 6 6 8 8 9 11 11 9 8 9 9 9 11 13 14
WIND GUST (MPH)
PRECIP PROB (%) 60 60 100 100 90 90 90 90 70 70 20 20 60 60 70 70 30
PRECIP TYPE S S S S S S S S S S S S S S S S S
6 HOUR QPF 0.06 0.29 0.18 0.16 0.03 0.02 0.10 0.04
6 HOUR SNOW 0.7 4.2 2.6 1.9 0.3 0.3 1.0 0.2
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.0 5.7 5.4 5.1 4.6 4.8 5.3 5.4 5.4 5.2 5.1 4.9 4.7 4.9 5.5 6.0 6.4
...TAM MCARTHUR RIM...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 BK OV OV OV OV OV OV BK OV BK BK OV OV OV BK BK
CLOUD COVER (%) 60 60 80 75 90 90 95 95 65 70 60 65 70 75 80 70 55
TEMPERATURE 36 31 29 29 27 28 30 32 31 28 27 27 26 28 30 32 33
MIN/MAX TEMP 26 32 26 33
WIND DIR SW SW SW SW SW SW W W W W W W W W W W W
WIND (MPH) 16 10 6 6 8 8 9 11 11 10 9 9 9 9 12 13 14
WIND GUST (MPH)
PRECIP PROB (%) 60 60 90 90 90 90 90 90 70 70 20 20 60 60 60 60 30
PRECIP TYPE S S S S S S S S S S S S S S S S S
6 HOUR QPF 0.06 0.26 0.15 0.13 0.02 0.02 0.08 0.03
6 HOUR SNOW 0.6 3.8 2.1 1.5 0.2 0.2 0.9 0.2
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.0 5.7 5.4 5.2 4.6 4.8 5.3 5.4 5.4 5.2 5.1 4.9 4.7 4.9 5.5 6.0 6.4
...NEWBERRY CRATER...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 BK OV OV OV OV OV OV OV OV BK OV OV OV OV OV OV
CLOUD COVER (%) 70 55 70 90 85 85 90 90 70 80 60 70 75 75 80 80 70
TEMPERATURE 41 35 31 30 29 28 30 33 33 29 28 28 27 28 31 33 34
MIN/MAX TEMP 27 35 27 35
WIND DIR W SW SW SW SW SW W W W W W W W W W NW NW
WIND (MPH) 16 11 9 9 10 10 10 11 11 10 10 10 11 11 12 13 14
WIND GUST (MPH)
PRECIP PROB (%) 40 40 90 90 70 70 90 90 50 50 10 10 20 20 40 40 20
PRECIP TYPE S S S S S S S S T S S S S S S
6 HOUR QPF 0.00 0.24 0.10 0.09 0.04 0.03 0.03 0.05
6 HOUR SNOW 0.0 3.4 1.3 0.7 0.4 0.2 0.3 0.3
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 6.5 5.9 5.5 5.4 5.0 5.1 5.6 5.8 5.8 5.5 5.2 5.1 4.7 4.9 5.5 6.1 6.5
...WALLOWA MOUNTAINS (8,000 FT TO 9,000 FT)...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 OV BK OV OV OV OV OV OV BK BK BK OV OV BK BK
CLOUD COVER (%) 75 90 80 65 80 80 95 95 80 75 50 65 70 75 75 70 65
TEMPERATURE 48 39 34 32 30 31 34 35 33 29 27 26 25 28 31 34 34
MIN/MAX TEMP 29 37 24 35
WIND DIR SW SW SW SW SW S SW W W NW W W W NW NW NW NW
WIND (MPH) 19 14 9 8 8 9 9 11 8 9 9 8 8 10 13 14 16
WIND GUST (MPH)
PRECIP PROB (%) 90 90 70 70 80 80 100 100 70 70 20 20 40 40 80 80 40
PRECIP TYPE S S S S S S S S S S S S S S S S S
6 HOUR QPF 0.12 0.13 0.07 0.21 0.08 0.02 0.03 0.05
6 HOUR SNOW 0.1 1.0 0.7 1.4 0.7 0.2 0.3 0.2
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 8.6 8.1 7.5 6.6 6.1 6.1 6.3 6.4 6.2 5.6 5.3 5.2 5.1 5.4 5.8 6.2 6.5
...SALT CREEK AREA (5,000 FT TO 7,000 FT)...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 OV OV OV OV OV OV OV OV SC BK BK BK BK BK BK
CLOUD COVER (%) 80 90 80 70 80 80 90 90 70 70 50 55 65 70 70 65 60
TEMPERATURE 57 45 40 37 35 37 41 42 40 33 31 31 29 33 40 43 41
MIN/MAX TEMP 34 44 29 43
WIND DIR SW NW N N S S S W NW NW NW NW NW NW NW NW N
WIND (MPH) 14 11 8 3 6 8 9 10 6 6 6 6 6 6 9 11 11
WIND GUST (MPH)
PRECIP PROB (%) 80 80 70 70 70 70 90 90 70 70 20 20 40 40 70 70 30
PRECIP TYPE R R R S S S S S S S S S S S S R R
6 HOUR QPF 0.06 0.07 0.09 0.19 0.13 0.01 0.02 0.04
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.3 0.1 0.1 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 8.6 8.2 7.6 6.7 6.1 6.1 6.3 6.4 6.2 5.7 5.3 5.1 5.0 5.4 5.8 6.2 6.5
...CLEAR CREEK AREA (6,000 FT TO 8,000 FT)...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 OV BK OV OV OV OV BK OV SC SC BK BK BK BK SC
CLOUD COVER (%) 85 90 70 65 75 75 90 90 60 75 45 50 55 60 70 60 45
TEMPERATURE 51 41 37 34 32 33 36 37 37 32 28 27 27 31 35 38 39
MIN/MAX TEMP 31 39 26 39
WIND DIR SW W S SW SW S SW SW W NW NW NW NW NW NW NW N
WIND (MPH) 14 10 5 6 8 10 11 11 6 8 8 8 8 6 9 11 12
WIND GUST (MPH)
PRECIP PROB (%) 80 80 60 60 70 70 90 90 60 60 20 20 40 40 70 70 30
PRECIP TYPE R R R S S S S S S S S S S S S S S
6 HOUR QPF 0.04 0.05 0.13 0.25 0.05 0.00 0.03 0.05
6 HOUR SNOW 0.0 0.2 1.0 0.6 0.3 0.0 0.2 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 8.5 8.1 7.7 6.9 6.2 6.2 6.3 6.4 6.2 5.7 5.2 5.1 5.1 5.4 5.9 6.2 6.6
...CATHERINE CREEK AREA (6,000 FT TO 8,000 FT)...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 OV OV OV OV OV OV OV OV BK BK OV OV BK BK BK
CLOUD COVER (%) 85 85 70 70 85 85 95 95 75 75 55 65 75 75 65 60 50
TEMPERATURE 49 40 36 33 32 34 36 35 34 31 30 30 29 31 35 37 37
MIN/MAX TEMP 31 37 29 38
WIND DIR W NW NW W S SW SW W NW NW NW NW NW NW NW NW NW
WIND (MPH) 13 10 6 4 6 8 6 11 9 9 9 9 9 10 12 13 13
WIND GUST (MPH)
PRECIP PROB (%) 90 90 70 70 80 80 100 100 70 70 20 20 50 50 70 70 40
PRECIP TYPE R R S S S S S S S S S S S S S S S
6 HOUR QPF 0.04 0.13 0.11 0.24 0.03 0.06 0.02 0.04
6 HOUR SNOW 0.0 0.7 0.8 0.8 0.3 0.6 0.2 0.0
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 8.6 8.0 7.2 6.2 6.0 6.0 6.3 6.0 5.9 5.6 5.5 5.4 5.2 5.3 5.7 6.1 6.5
...NORWAY AREA (7,000 FT TO 10,000 FT)...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 OV BK OV OV OV OV BK OV SC SC BK BK BK BK SC
CLOUD COVER (%) 90 90 70 65 80 80 95 95 60 75 40 50 55 65 70 65 45
TEMPERATURE 45 37 34 31 28 30 31 32 32 28 26 25 24 28 30 32 33
MIN/MAX TEMP 28 33 24 34
WIND DIR SW W SW SW SW SW SW W W NW NW NW NW NW NW NW NW
WIND (MPH) 18 14 10 10 11 13 12 12 10 11 11 11 11 11 13 13 17
WIND GUST (MPH)
PRECIP PROB (%) 80 80 60 60 80 80 90 90 70 70 20 20 40 40 70 70 30
PRECIP TYPE S S S S S S S S S S S S S S S S S
6 HOUR QPF 0.06 0.06 0.12 0.25 0.04 0.00 0.03 0.06
6 HOUR SNOW 0.0 0.6 1.4 2.5 0.5 0.0 0.3 0.4
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 8.5 8.0 7.6 6.8 6.2 6.1 6.3 6.4 6.1 5.6 5.3 5.2 5.1 5.4 6.0 6.2 6.6
...ANTHONY LAKES AREA (8,000 FT TO 10,000 FT)...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 OV OV OV OV OV OV OV OV BK OV OV OV OV BK BK
CLOUD COVER (%) 80 75 75 75 85 85 95 95 75 75 65 70 80 80 75 65 65
TEMPERATURE 45 37 33 31 31 31 32 32 31 28 28 29 28 28 31 32 34
MIN/MAX TEMP 30 35 28 35
WIND DIR W W W SW SW SW W W W W W W W NW NW NW NW
WIND (MPH) 12 11 8 6 8 9 9 11 10 10 10 11 10 11 12 13 14
WIND GUST (MPH)
PRECIP PROB (%) 90 90 70 70 90 90 100 100 70 70 20 20 50 50 70 70 40
PRECIP TYPE R S S S S S S S S S S S S S S S S
6 HOUR QPF 0.07 0.18 0.17 0.12 0.14 0.07 0.01 0.02
6 HOUR SNOW 0.0 2.0 2.1 1.0 1.5 0.8 0.1 0.2
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 8.5 7.8 6.6 6.1 5.9 6.0 6.1 6.1 6.0 5.6 5.4 5.3 5.2 5.2 5.6 6.0 6.4
...BLUE MOUNTAINS (4,000 FT TO 6,000 FT)...
DATE MONDAY 05/12/25 TUESDAY 05/13/25
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 OV OV OV OV OV OV OV BK OV OV OV OV OV BK BK
CLOUD COVER (%) 90 90 90 85 85 80 90 90 75 65 70 80 80 85 75 65 55
TEMPERATURE 50 42 39 38 37 38 40 41 41 38 37 37 36 37 40 42 44
MIN/MAX TEMP 36 43 35 44
WIND DIR NW NW W W SW SW W W W W W SW SW SW W W W
WIND (MPH) 11 10 4 4 3 4 5 9 5 5 5 5 5 5 6 6 6
WIND GUST (MPH)
PRECIP PROB (%) 90 90 70 70 80 80 90 90 60 60 30 30 60 60 70 70 30
PRECIP TYPE R R R S S S S S R R S S S S S R R
6 HOUR QPF 0.18 0.13 0.12 0.19 0.03 0.09 0.02 0.02
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) 8.4 7.3 6.1 5.5 5.4 5.6 5.5 5.7 5.8 5.7 5.4 5.3 5.1 4.9 5.4 5.9 6.4
$$
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN