Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
643
FWUS41 KGYX 090931
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 AM EST TUE DEC 9 2025
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW FW SC OV OV OV OV BK OV OV OV OV OV OV OV OV OV
CLOUD COVER (%) 15 25 45 75 70 90 80 65 75 75 90 100 90 85 85 85 80
TEMPERATURE -11 -3 1 2 1 2 5 8 10 12 12 15 17 17 17 11 7
MAX/MIN TEMP 5 0 18 2
WIND CHILL -40 -22 -14 -17 -24 -25 -21 -15 -11 -8 -9 -5 -6 -6 -6 -17 -24
WIND DIR NW W SW SW SW SW SW SW SW S S S SW W W W W
WIND (MPH) 28 12 9 14 28 34 35 29 26 25 27 28 44 44 43 56 67
WIND GUST (MPH) 85
PRECIP PROB (%) 0 0 0 0 5 60 30 10 40 70 80 100 90 80 50 40 40
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.05 0.01 0.08 0.29 0.13 0.10
6 HOUR SNOW 0.0 0.0 0.9 0.2 1.1 3.8 2.1 1.7
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5 0.8 1.1 0.9 0.7 0.4 0.1
SNOW RATIO (:1) 16 16 16 15 16 18 18 17 16 14 14 13 13 16 17 17 18
SNOW DENSITY (%) 6 6 6 6 6 5 5 5 6 7 7 7 7 6 5 5 5
...FRANCONIA NOTCH/MOUNT LAFAYETTE (4000 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW SC BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUD COVER (%) 10 25 50 75 75 90 90 70 75 80 90 100 95 90 90 90 85
TEMPERATURE -7 3 10 10 8 9 12 14 15 19 21 23 25 25 25 22 19
MAX/MIN TEMP 13 8 25 13
WIND CHILL -21 -6 0 -1 -7 -8 -3 0 2 7 9 12 9 10 10 4 -1
WIND DIR NW NW SW S S S S SW S S SE S SW SW W W W
WIND (MPH) 6 4 5 6 11 14 13 11 10 10 11 11 25 24 24 29 35
WIND GUST (MPH) 48 56
PRECIP PROB (%) 0 0 0 0 5 60 20 5 30 70 80 100 90 70 50 30 40
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.07 0.02 0.10 0.25 0.06 0.05
6 HOUR SNOW 0.0 0.0 1.3 0.3 1.3 3.2 0.9 0.9
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5 0.8 1.0 0.9 0.7 0.3 0.1
SNOW RATIO (:1) 16 16 16 16 17 18 19 17 15 14 13 13 13 15 16 17 19
SNOW DENSITY (%) 6 6 6 6 5 5 5 5 6 7 7 7 7 6 6 5 5
...TUCKERMAN AND HUNTINGTON RAVINES (4500 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW FW SC OV OV OV OV BK OV OV OV OV OV OV OV OV OV
CLOUD COVER (%) 15 25 45 75 70 90 80 65 70 75 90 100 95 85 85 85 75
TEMPERATURE -7 4 11 10 7 9 12 14 15 19 21 22 24 25 24 23 19
MAX/MIN TEMP 13 7 25 14
WIND CHILL -25 -7 2 0 -8 -7 -3 1 2 7 9 11 9 10 9 6 -1
WIND DIR NW W SW SW SW SW SW SW SW S S S SW W W W W
WIND (MPH) 10 5 5 5 10 12 12 10 10 10 11 10 23 23 20 28 35
WIND GUST (MPH) 46 56
PRECIP PROB (%) 0 0 0 0 5 60 30 10 40 70 80 100 90 80 50 40 40
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.05 0.01 0.08 0.31 0.10 0.07
6 HOUR SNOW 0.0 0.0 0.9 0.2 1.2 4.2 1.5 1.1
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 0.8 1.1 0.9 0.7 0.4 0.1
SNOW RATIO (:1) 16 16 16 16 16 18 18 16 14 14 14 13 13 15 16 16 18
SNOW DENSITY (%) 6 6 6 6 6 5 5 6 7 7 7 7 7 6 6 6 5
...CRAWFORD NOTCH AMC HIGHLAND CENTER (1900 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW FW SC OV OV OV OV BK OV OV OV OV OV OV OV OV OV
CLOUD COVER (%) 15 25 50 75 75 90 80 65 75 75 90 100 90 90 90 90 80
TEMPERATURE -8 3 14 13 10 12 14 16 17 23 24 26 27 27 27 24 21
MAX/MIN TEMP 16 10 28 17
WIND CHILL -23 -6 5 4 -3 0 2 4 7 13 14 16 17 17 16 11 7
WIND DIR N NW W S S S S S S SE SE SE S SW SW W W
WIND (MPH) 6 4 5 5 9 9 9 9 8 9 10 10 10 10 12 14 17
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 5 60 30 10 40 70 80 100 90 80 50 40 40
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.05 0.01 0.08 0.28 0.07 0.05
6 HOUR SNOW 0.0 0.0 0.9 0.2 1.1 3.8 1.0 0.8
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5 0.8 1.1 0.9 0.7 0.4 0.1
SNOW RATIO (:1) 16 16 16 16 16 18 19 17 14 14 14 13 14 14 15 16 18
SNOW DENSITY (%) 6 6 6 6 6 5 5 5 7 7 7 7 7 7 6 6 5
...KANCAMAGUS HIGHWAY PASS (2855 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW FW SC OV BK OV OV OV OV OV OV OV OV OV OV OV OV
CLOUD COVER (%) 5 15 45 75 70 90 80 75 70 75 90 100 95 90 85 85 70
TEMPERATURE -6 8 14 12 9 10 14 15 15 20 23 24 25 26 26 24 21
MAX/MIN TEMP 15 9 26 18
WIND CHILL -21 -1 6 4 -2 -2 3 5 6 11 14 15 13 15 14 10 4
WIND DIR NW W SW SW SW SW SW SW SW S SE SE SW SW W W W
WIND (MPH) 8 4 4 4 6 8 8 6 5 6 8 8 13 12 13 19 24
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 5 60 30 5 30 70 80 100 90 70 40 30 30
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.08 0.02 0.08 0.33 0.09 0.04
6 HOUR SNOW 0.0 0.0 1.5 0.3 1.2 4.2 1.3 0.6
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5 0.8 1.1 0.9 0.6 0.4 0.1
SNOW RATIO (:1) 16 16 16 16 16 18 18 16 14 14 13 12 13 14 15 16 17
SNOW DENSITY (%) 6 6 6 6 6 5 5 6 7 7 7 8 7 7 6 6 5
...MOUNT OSCEOLA (4340 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW FW SC OV BK OV OV OV OV OV OV OV OV OV OV OV OV
CLOUD COVER (%) 5 20 45 75 70 90 85 75 70 75 90 100 95 90 85 85 70
TEMPERATURE -8 4 10 9 8 9 12 14 15 17 19 22 23 24 24 21 17
MAX/MIN TEMP 12 8 24 13
WIND CHILL -28 -7 2 -1 -8 -8 -4 0 2 6 7 10 8 9 9 3 -4
WIND DIR NW NW SW SW S S SW SW SW S SE SE SW SW W W W
WIND (MPH) 12 5 4 5 13 14 14 12 10 9 10 11 21 21 20 27 34
WIND GUST (MPH) 44 54
PRECIP PROB (%) 0 0 0 0 5 60 30 5 30 70 80 100 90 70 40 30 30
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.08 0.02 0.08 0.31 0.07 0.03
6 HOUR SNOW 0.0 0.0 1.5 0.3 1.1 3.9 1.0 0.5
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5 0.8 1.0 0.9 0.6 0.4 0.1
SNOW RATIO (:1) 16 16 16 16 17 19 18 16 15 14 13 12 12 15 16 17 18
SNOW DENSITY (%) 6 6 6 6 5 5 5 6 6 7 7 8 8 6 6 5 5
...CANNON MOUNTAIN (4080 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW FW BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUD COVER (%) 10 25 55 75 75 90 90 70 75 80 90 100 95 90 95 90 85
TEMPERATURE -8 1 9 10 9 10 13 15 16 18 20 23 25 26 26 22 19
MAX/MIN TEMP 13 9 26 13
WIND CHILL -24 -9 -1 -2 -8 -8 -4 0 2 5 7 11 10 11 12 4 -1
WIND DIR NW NW SW S S S S S S SE SE S SW SW W W W
WIND (MPH) 8 4 5 8 16 18 17 14 13 12 13 13 23 23 21 28 34
WIND GUST (MPH) 46 54
PRECIP PROB (%) 0 0 0 0 5 50 20 5 30 70 80 100 80 70 40 30 30
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.06 0.01 0.10 0.24 0.04 0.03
6 HOUR SNOW 0.0 0.0 1.1 0.2 1.3 2.9 0.6 0.5
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5 0.8 1.0 0.9 0.7 0.3 0.1
SNOW RATIO (:1) 16 16 16 16 17 18 19 17 15 14 13 12 12 15 16 17 19
SNOW DENSITY (%) 6 6 6 6 5 5 5 5 6 7 7 8 8 6 6 5 5
...BALDFACE MOUNTAIN (3547 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW FW SC OV OV OV OV BK BK OV OV OV OV OV OV OV BK
CLOUD COVER (%) 15 15 40 75 75 90 80 65 70 75 85 100 90 85 75 75 65
TEMPERATURE -4 6 13 13 10 11 14 14 15 20 23 24 26 27 26 24 22
MAX/MIN TEMP 15 9 26 19
WIND CHILL -16 7 0 0 5 6 8 13 16 17 18 20 18 14 10
WIND DIR NW W SW SW SW SW SW SW SW S SE S SW SW SW W W
WIND (MPH) 5 2 2 3 5 6 5 4 4 4 5 5 6 6 8 10 12
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 5 50 30 10 30 60 80 100 80 70 40 30 30
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.02 0.01 0.06 0.31 0.05 0.01
6 HOUR SNOW 0.0 0.0 0.4 0.2 0.8 3.6 0.6 0.2
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.4 0.8 0.8 0.8 0.6 0.3 0.1
SNOW RATIO (:1) 17 16 16 16 16 18 17 16 14 14 13 11 11 12 13 15 16
SNOW DENSITY (%) 5 6 6 6 6 5 5 6 7 7 7 9 9 8 7 6 6
...MOUNT MOOSILAUKE (4802 FT)...
DATE TUESDAY 12/09/25 WEDNESDAY 12/10/25
TIME (LT) 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
7A 10A 1P 4P 7P 10P 1A 4A 7A 10A 1P 4P 7P 10P 1A 4A 7A
CLOUD COVER FW FW BK OV OV OV OV OV OV OV OV OV OV OV OV OV OV
CLOUD COVER (%) 10 20 50 75 75 95 90 75 70 80 90 100 95 90 90 90 80
TEMPERATURE -8 3 8 8 9 10 13 15 16 17 18 22 23 24 25 21 16
MAX/MIN TEMP 13 9 24 13
WIND CHILL -23 -4 -1 -2 -7 -7 -3 0 2 4 5 10 7 9 10 3 -5
WIND DIR NW NW S S S S S S S SE SE S SW SW W W W
WIND (MPH) 6 3 4 5 13 16 14 13 12 11 11 12 24 23 21 28 34
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 5 40 20 5 30 70 80 100 80 50 30 20 20
PRECIP TYPE S S S S S S S S S S S
6 HOUR QPF 0.00 0.00 0.08 0.02 0.09 0.25 0.07 0.02
6 HOUR SNOW 0.0 0.0 1.5 0.3 1.2 3.0 1.0 0.3
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.5 0.8 1.0 0.9 0.6 0.3 0.0
SNOW RATIO (:1) 16 16 16 16 17 18 18 16 15 14 13 12 12 15 16 17 18
SNOW DENSITY (%) 6 6 6 6 5 5 5 6 6 7 7 8 8 6 6 5 5
$$
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN