937  
FWUS46 KPDT 211156  
AVGPDT  
 
AVALANCHE WEATHER GUIDANCE  
NATIONAL WEATHER SERVICE PENDLETON OR  
356 AM PST SAT DEC 21 2024  
 
   
..BROKEN TOP  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV SC  
CLOUD COVER (%) 80 85 90 85 75 80 80 80 90 90 80 80 90 85 80 70 50  
TEMPERATURE 33 32 30 31 27 25 25 25 26 26 28 31 32 32 31 29 26  
MAX/MIN TEMP 34 24 33 23  
WIND DIR S SW SW SW SW SW SW SW SW SW SW SW SW SW SW W SW  
WIND (MPH) 26 24 19 19 17 16 14 14 14 18 19 20 20 23 21 21 17  
WIND GUST (MPH) 51 47 39 40 42 43 42 42  
PRECIP PROB (%) 30 90 90 90 50 40 20 20 40 40 80 80 90 90 60 60 10  
PRECIP TYPE S S S S S S S S S S S S S S S S  
6 HOUR QPF 0.16 0.37 0.10 0.04 0.07 0.24 0.68 0.10  
6 HOUR SNOW 1.1 4.6 1.3 0.4 0.8 1.3 3.3 0.8  
12 HOUR SNOW 5.7 1.7 2.1 4.1  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 6.2 5.8 5.5 4.9 4.7 4.6 4.6 4.6 4.8 5.0 5.6 6.6 6.9 6.5 5.9 5.4 4.9  
 
   
..TAM MCARTHUR RIM  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV BK SC  
CLOUD COVER (%) 80 85 85 85 75 75 80 80 90 90 80 75 85 75 75 65 45  
TEMPERATURE 34 33 31 32 28 26 26 26 27 27 29 33 33 33 31 30 27  
MAX/MIN TEMP 35 25 33 24  
WIND DIR S SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW  
WIND (MPH) 27 26 20 19 17 16 14 16 16 19 20 21 21 24 23 23 18  
WIND GUST (MPH) 51 47 39 40 42 43 42 42  
PRECIP PROB (%) 30 90 90 90 50 40 10 10 40 40 80 80 90 90 60 60 5  
PRECIP TYPE S S S S S S S S S S S S S S S  
6 HOUR QPF 0.17 0.35 0.10 0.04 0.06 0.24 0.73 0.11  
6 HOUR SNOW 1.0 4.3 1.3 0.4 0.7 1.2 3.4 0.8  
12 HOUR SNOW 5.3 1.7 1.9 4.2  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 6.3 5.9 5.5 4.9 4.6 4.6 4.6 4.6 4.8 5.0 5.6 6.7 7.0 6.5 5.9 5.4 4.8  
 
   
..NEWBERRY CRATER  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV SC  
CLOUD COVER (%) 85 90 90 85 80 80 85 85 90 90 85 70 95 90 85 75 50  
TEMPERATURE 35 33 31 32 29 27 27 27 27 27 27 32 32 33 33 31 27  
MAX/MIN TEMP 35 25 33 24  
WIND DIR S S SW SW SW SW SW S S S S S S S SW SW SW  
WIND (MPH) 20 19 18 16 12 11 11 12 12 13 14 14 14 17 19 18 13  
WIND GUST (MPH) 46 47 42 33 33 33 35 39 37  
PRECIP PROB (%) 20 80 80 60 30 20 10 10 40 40 80 80 80 80 50 50 5  
PRECIP TYPE S S S S S S S S S S S S S S  
6 HOUR QPF 0.05 0.15 0.03 0.00 0.03 0.05 0.20 0.06  
6 HOUR SNOW 0.2 1.4 0.3 0.0 0.3 0.3 0.6 0.4  
12 HOUR SNOW 1.6 0.3 0.6 1.0  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 6.1 5.8 5.6 5.2 4.8 4.7 4.7 4.7 4.8 5.0 5.4 6.4 6.7 6.6 6.1 5.5 5.0  
 
   
..WALLOWA MOUNTAINS (8,000 FT TO 9,000 FT)  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER BK BK BK OV OV BK BK SC BK OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 65 65 65 80 80 65 50 45 70 75 80 85 85 80 85 75 75  
TEMPERATURE 34 34 35 35 30 26 23 21 22 23 27 29 28 29 29 29 27  
MAX/MIN TEMP 37 20 30 25  
WIND DIR S S S S SW W SW SW SW SW SW SW SW S S SW SW  
WIND (MPH) 26 26 26 25 18 12 11 11 12 13 14 17 18 23 23 18 11  
WIND GUST (MPH) 46 44  
PRECIP PROB (%) 5 5 50 80 70 50 10 10 5 5 30 30 80 80 90 90 50  
PRECIP TYPE S S S S S S S S S S S  
6 HOUR QPF 0.00 0.25 0.13 0.00 0.00 0.01 0.05 0.16  
6 HOUR SNOW 0.0 1.5 1.5 0.0 0.0 0.1 0.4 1.5  
12 HOUR SNOW 1.5 1.5 0.1 1.9  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 6.3 6.0 5.8 5.7 5.5 4.8 4.4 4.1 4.1 4.3 4.7 5.0 5.2 5.4 5.7 5.7 5.4  
 
   
..SALT CREEK AREA (5,000 FT TO 7,000 FT)  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER OV BK BK OV OV BK SC BK OV OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 70 65 65 85 80 65 50 50 70 75 85 90 85 80 90 85 75  
TEMPERATURE 34 34 37 38 32 30 26 25 25 26 31 33 32 31 31 32 30  
MAX/MIN TEMP 39 24 34 28  
WIND DIR S S S S S S S SW S S S S S S S S SW  
WIND (MPH) 18 18 18 18 13 10 8 9 9 10 12 14 16 18 18 14 9  
WIND GUST (MPH) 39 40  
PRECIP PROB (%) 5 5 50 80 70 40 10 10 10 10 40 40 90 90 90 90 50  
PRECIP TYPE S S S S S S S S S S S  
6 HOUR QPF 0.00 0.17 0.09 0.00 0.00 0.01 0.04 0.12  
6 HOUR SNOW 0.0 0.5 0.7 0.0 0.0 0.0 0.3 0.7  
12 HOUR SNOW 0.5 0.7 0.0 1.0  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 5.7 5.4 5.3 5.3 5.2 4.8 4.3 4.0 3.9 4.1 4.5 4.8 4.9 5.1 5.3 5.4 5.2  
 
   
..CLEAR CREEK AREA (6,000 FT TO 8,000 FT)  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER BK BK BK OV OV BK BK BK OV OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 60 60 70 95 90 65 50 60 75 75 90 95 90 85 90 85 80  
TEMPERATURE 30 30 33 33 30 28 24 23 22 23 26 29 28 29 28 29 28  
MAX/MIN TEMP 34 22 30 25  
WIND DIR SW SW SW S SW W W W SW SW SW S S S S S SW  
WIND (MPH) 12 12 16 14 12 9 6 6 6 8 10 12 12 13 13 11 8  
WIND GUST (MPH)  
PRECIP PROB (%) 5 10 60 80 70 40 10 10 10 10 40 40 90 90 100 100 60  
PRECIP TYPE S S S S S S S S S S S  
6 HOUR QPF 0.00 0.29 0.22 0.00 0.00 0.09 0.14 0.32  
6 HOUR SNOW 0.0 1.8 2.5 0.0 0.1 1.1 1.1 2.7  
12 HOUR SNOW 1.8 2.5 1.2 3.8  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 5.2 5.1 5.0 5.1 5.2 4.8 4.4 4.2 4.2 4.2 4.5 4.7 4.8 5.0 5.3 5.4 5.3  
 
   
..CATHERINE CREEK AREA (6,000 FT TO 8,000 FT)  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER OV OV OV OV OV OV BK BK OV OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 75 75 85 95 90 80 65 60 70 75 85 95 90 90 95 85 90  
TEMPERATURE 33 34 34 34 31 29 26 24 24 25 28 29 29 30 30 30 29  
MAX/MIN TEMP 35 24 30 27  
WIND DIR SE SE SE S S W W SE SE SE S S SE SE SE S SW  
WIND (MPH) 17 18 17 16 11 6 5 6 9 10 11 13 13 14 14 11 8  
WIND GUST (MPH) 35 33  
PRECIP PROB (%) 5 10 60 90 70 40 10 10 10 10 40 40 90 90 90 90 50  
PRECIP TYPE S S S S S S S S S S S  
6 HOUR QPF 0.00 0.19 0.13 0.00 0.00 0.04 0.12 0.26  
6 HOUR SNOW 0.0 1.2 1.4 0.1 0.0 0.5 0.9 1.9  
12 HOUR SNOW 1.2 1.5 0.5 2.8  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 5.6 5.3 5.2 5.3 5.2 4.9 4.5 4.3 4.2 4.3 4.6 4.8 5.0 5.2 5.5 5.5 5.3  
 
   
..NORWAY AREA (7,000 FT TO 10,000 FT)  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER BK BK OV OV OV BK BK BK OV OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 60 60 75 95 90 65 55 60 75 75 85 90 90 85 90 85 75  
TEMPERATURE 28 29 31 31 28 26 22 21 21 22 23 25 26 26 27 28 26  
MAX/MIN TEMP 32 20 27 24  
WIND DIR S S S S SW W W W SW SW SW SW S S S SW SW  
WIND (MPH) 16 16 17 17 14 11 9 9 10 11 11 14 14 16 17 14 11  
WIND GUST (MPH)  
PRECIP PROB (%) 5 10 60 80 70 40 10 10 10 10 40 40 100 100 100 100 60  
PRECIP TYPE S S S S S S S S S S S  
6 HOUR QPF 0.00 0.29 0.22 0.00 0.00 0.06 0.13 0.36  
6 HOUR SNOW 0.0 2.4 2.9 0.0 0.0 0.7 1.3 3.7  
12 HOUR SNOW 2.4 2.9 0.7 5.0  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 5.4 5.3 5.1 5.3 5.3 4.8 4.4 4.3 4.3 4.3 4.6 4.8 5.0 5.1 5.4 5.5 5.3  
 
   
..ANTHONY LAKES AREA (8,000 FT TO 10,000 FT)  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER OV OV OV OV OV BK BK BK OV OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 75 75 90 90 80 65 55 65 75 70 85 90 85 90 90 85 75  
TEMPERATURE 34 33 33 33 30 26 24 22 23 23 25 28 28 29 30 30 28  
MAX/MIN TEMP 35 21 30 25  
WIND DIR S S S SW W W SW SW SW S S S S S S SW W  
WIND (MPH) 19 19 18 16 12 10 8 9 10 11 12 13 12 16 16 12 12  
WIND GUST (MPH) 37 37 33  
PRECIP PROB (%) 10 10 80 80 70 40 5 5 10 10 50 50 90 90 70 70 30  
PRECIP TYPE S S S S S S S S S S S S  
6 HOUR QPF 0.00 0.19 0.12 0.00 0.00 0.01 0.14 0.19  
6 HOUR SNOW 0.0 1.5 1.6 0.0 0.0 0.1 1.0 1.7  
12 HOUR SNOW 1.5 1.6 0.1 2.7  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 5.9 5.7 5.6 5.6 5.3 4.8 4.5 4.3 4.4 4.4 4.7 5.2 5.5 5.7 6.0 5.7 5.3  
 
   
..BLUE MOUNTAINS (4,000 FT TO 6,000 FT)  
 
DATE SATURDAY 12/21/24 SUNDAY 12/22/24  
TIME (LT) 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04  
4A 7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A  
 
CLOUD COVER OV OV OV OV OV BK BK SC BK OV OV OV OV OV OV OV OV  
CLOUD COVER (%) 75 80 90 95 85 70 60 50 65 75 80 85 85 90 90 85 75  
TEMPERATURE 37 37 38 37 35 34 32 31 30 30 32 35 34 34 35 35 35  
MAX/MIN TEMP 38 29 35 33  
WIND DIR S S S S SW W SW S S S S S S S S S SW  
WIND (MPH) 16 17 14 12 9 8 6 6 6 8 9 11 12 14 13 11 10  
WIND GUST (MPH) 39 41 41 34 28 25 29 35 34 29 34  
PRECIP PROB (%) 10 20 80 100 80 50 20 10 5 5 30 30 90 90 90 90 30  
PRECIP TYPE S R S S S S S S S S S S R R S  
6 HOUR QPF 0.00 0.16 0.20 0.00 0.00 0.01 0.10 0.28  
6 HOUR SNOW 0.0 0.0 0.6 0.0 0.0 0.0 0.1 0.0  
12 HOUR SNOW 0.0 0.6 0.0 0.1  
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00  
SNOW LEVEL (KFT) 6.6 6.5 5.7 5.3 5.0 4.7 4.3 4.1 4.0 3.9 4.0 4.5 4.9 5.4 5.8 5.6 5.2  
 
 
 
--- PRECIP TYPE CODES ---  
 
CODE TYPE  
T THUNDERSTORMS  
R RAIN  
S SNOW  
I SLEET  
Z FREEZING RAIN  
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