Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
071
FWUS41 KGYX 170830
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 AM EDT THU APR 17 2025
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER BK SC FW FW CL FW CL FW FW FW SC OV OV OV OV OV OV
CLOUD COVER (%) 60 45 20 10 5 15 5 10 25 20 45 85 80 85 85 90 80
TEMPERATURE 13 16 19 20 19 19 21 21 28 37 40 39 36 37 38 40 43
MAX/MIN TEMP 23 17 41 35
WIND CHILL -15 -10 -6 -4 -5 -6 -2 -1 11 19
WIND DIR W NW W NW NW NW NW NW NW W W W S S SW SW SW
WIND (MPH) 65 60 59 59 57 60 56 48 34 29 37 35 56 43 44 43 43
WIND GUST (MPH) 82
PRECIP PROB (%) 20 10 5 0 0 0 0 0 0 0 10 30 70 70 50 50 60
PRECIP TYPE S R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.05
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.1 0.4 0.3 0.1 0.0 0.0 0.1 0.5 2.7 4.0 5.6 8.1 9.5 10.1 10.2 10.2
SNOW RATIO (:1) 14 14 14 14 12 9 6 5 4 2 2 3 2 1 0 0 0
...FRANCONIA NOTCH/MOUNT LAFAYETTE (4000 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER OV SC FW CL CL FW CL FW FW FW BK OV OV OV OV OV OV
CLOUD COVER (%) 80 50 20 5 5 10 5 5 15 20 65 85 85 85 85 90 80
TEMPERATURE 19 23 29 31 27 24 26 24 31 43 47 46 42 41 42 45 47
MAX/MIN TEMP 33 23 48 41
WIND CHILL 0 5 13 16 11 7 11 10
WIND DIR NW NW NW NW NW NW NW NW W W SW SW S S S S SW
WIND (MPH) 29 32 32 31 29 28 24 19 14 12 16 18 19 16 16 14 14
WIND GUST (MPH) 48 50 50 49 48 46
PRECIP PROB (%) 20 5 5 0 0 0 0 0 0 0 10 30 70 70 40 40 50
PRECIP TYPE S R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.04 0.03 0.03
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.1 0.3 0.3 0.1 0.0 0.0 0.1 0.6 2.7 3.9 6.4 8.5 9.8 10.3 10.2 10.2
SNOW RATIO (:1) 14 14 13 12 12 9 7 5 3 1 1 1 1 0 0 0 0
...TUCKERMAN AND HUNTINGTON RAVINES (4500 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER BK SC FW FW CL FW CL FW SC FW SC OV OV OV OV OV OV
CLOUD COVER (%) 50 35 20 10 5 15 5 10 25 20 40 85 80 80 75 80 75
TEMPERATURE 19 23 28 29 26 23 26 23 32 43 49 46 42 41 42 45 49
MAX/MIN TEMP 31 22 50 40
WIND CHILL -1 4 11 13 9 5 11 8
WIND DIR NW NW NW NW NW NW NW NW NW W SW SW S S SW SW SW
WIND (MPH) 35 36 34 34 32 31 25 19 17 12 14 17 18 17 18 17 17
WIND GUST (MPH) 56 57 54 54 50 49
PRECIP PROB (%) 20 5 5 0 0 0 0 0 0 0 10 30 70 70 50 50 60
PRECIP TYPE S R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.05 0.04 0.04
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.1 0.5 0.3 0.1 0.0 0.0 0.1 0.6 2.7 4.0 5.7 8.1 9.5 10.1 10.2 10.2
SNOW RATIO (:1) 12 13 13 12 10 7 4 4 2 1 1 1 1 0 0 0 0
...CRAWFORD NOTCH AMC HIGHLAND CENTER (1900 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER OV BK FW FW CL FW CL FW FW FW BK OV OV OV OV OV OV
CLOUD COVER (%) 75 50 25 10 5 15 5 10 25 20 50 85 85 80 85 90 80
TEMPERATURE 24 31 37 38 30 26 27 23 33 48 54 51 45 44 44 47 51
MAX/MIN TEMP 40 22 55 42
WIND CHILL 9 17 18 13 17 15
WIND DIR NW NW NW NW NW NW NW NW NW SW SW S S S SW SW SW
WIND (MPH) 20 25 26 24 18 16 11 6 6 6 11 11 12 12 12 12 13
WIND GUST (MPH)
PRECIP PROB (%) 20 10 5 0 0 0 0 0 0 0 10 30 70 70 50 50 60
PRECIP TYPE S R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.04 0.04 0.03
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.1 0.4 0.3 0.1 0.0 0.0 0.0 0.6 2.8 3.9 6.1 8.2 9.6 10.2 10.2 10.2
SNOW RATIO (:1) 14 14 12 11 11 9 6 5 2 1 0 0 1 0 0 0 0
...KANCAMAGUS HIGHWAY PASS (2855 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER SC FW FW CL FW FW CL FW FW FW BK OV OV OV OV OV OV
CLOUD COVER (%) 45 20 10 5 5 15 5 5 20 20 55 85 80 75 75 80 75
TEMPERATURE 25 31 36 38 31 28 29 26 34 47 52 51 45 43 43 45 50
MAX/MIN TEMP 40 25 53 42
WIND CHILL 9 17 18 15 18 15
WIND DIR NW NW W NW NW NW NW NW NW W SW SW S SW SW SW SW
WIND (MPH) 25 27 27 26 21 18 13 11 10 8 11 12 11 10 10 10 10
WIND GUST (MPH) 44 44
PRECIP PROB (%) 10 5 5 0 0 0 0 0 0 0 10 30 70 70 40 40 50
PRECIP TYPE R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.03 0.03 0.02
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.2 0.6 0.4 0.1 0.0 0.0 0.1 0.7 2.5 3.8 6.4 8.3 9.8 10.3 10.2 10.2
SNOW RATIO (:1) 13 13 11 10 9 6 3 3 2 1 1 1 1 0 0 0 0
...MOUNT OSCEOLA (4340 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER BK FW FW CL CL FW CL FW FW FW BK OV OV OV OV OV OV
CLOUD COVER (%) 55 20 10 5 5 15 5 5 20 20 60 85 80 75 80 80 75
TEMPERATURE 20 24 29 31 28 26 27 25 32 41 48 47 43 42 42 44 48
MAX/MIN TEMP 33 24 49 41
WIND CHILL 0 6 13 15 12 10 13 11
WIND DIR NW NW W NW NW NW NW NW NW W SW SW S S SW SW SW
WIND (MPH) 34 34 34 34 31 28 21 18 14 12 17 17 19 18 18 17 17
WIND GUST (MPH) 54 54 54 54 49 46
PRECIP PROB (%) 10 5 5 0 0 0 0 0 0 0 10 30 70 70 40 40 50
PRECIP TYPE R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.03 0.03 0.02
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.2 0.6 0.5 0.1 0.0 0.0 0.1 0.7 2.5 3.8 6.2 8.4 9.8 10.3 10.2 10.2
SNOW RATIO (:1) 13 14 12 10 10 6 4 4 2 1 1 1 1 0 0 0 0
...CANNON MOUNTAIN (4080 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER OV SC FW CL CL FW CL FW FW FW BK OV OV OV OV OV OV
CLOUD COVER (%) 80 45 15 5 5 10 5 5 15 20 65 90 85 80 85 90 80
TEMPERATURE 19 23 29 32 28 25 27 25 32 42 47 46 43 42 43 45 48
MAX/MIN TEMP 34 24 48 42
WIND CHILL 0 5 13 17 12 8 13 11
WIND DIR NW NW NW NW NW NW NW NW W W SW SW S S S S SW
WIND (MPH) 29 32 32 31 28 28 23 18 13 12 16 17 21 19 19 18 18
WIND GUST (MPH) 48 50 50 49 46 46
PRECIP PROB (%) 20 5 5 0 0 0 0 0 0 0 10 30 60 60 40 40 50
PRECIP TYPE S R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.04 0.03 0.02
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.1 0.4 0.3 0.1 0.0 0.0 0.2 0.7 2.6 3.9 6.0 8.5 9.8 10.3 10.2 10.2
SNOW RATIO (:1) 14 14 13 12 12 9 7 5 3 1 1 1 1 0 0 0 0
...BALDFACE MOUNTAIN (3547 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER FW FW FW CL CL FW CL FW SC FW SC OV OV OV OV OV OV
CLOUD COVER (%) 15 10 5 5 5 25 5 10 30 15 30 80 80 80 70 80 75
TEMPERATURE 28 33 37 38 33 28 31 28 36 48 55 53 48 46 47 48 52
MAX/MIN TEMP 40 27 56 45
WIND CHILL 15 18
WIND DIR NW NW NW NW NW NW W W W SW S S S S SW SW SW
WIND (MPH) 20 24 24 23 16 11 6 5 3 5 9 9 9 9 9 8 9
WIND GUST (MPH)
PRECIP PROB (%) 5 5 0 0 0 0 0 0 0 0 10 30 70 70 40 40 50
PRECIP TYPE R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.02 0.03 0.03
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.4 0.8 0.6 0.1 0.0 0.0 0.0 0.4 2.5 3.8 5.6 7.8 9.4 10.2 10.2 10.2
SNOW RATIO (:1) 10 10 10 7 7 6 5 3 1 1 0 0 1 0 0 0 0
...MOUNT MOOSILAUKE (4802 FT)...
DATE THURSDAY 04/17/25 FRIDAY 04/18/25
TIME (LT) 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A
CLOUD COVER OV SC FW CL CL FW CL FW FW FW BK OV OV OV OV OV OV
CLOUD COVER (%) 75 35 10 5 5 5 5 5 20 20 70 90 80 85 85 90 85
TEMPERATURE 21 26 32 34 30 27 26 25 32 42 48 47 43 42 42 44 47
MAX/MIN TEMP 36 24 49 42
WIND CHILL 3 9 17 16 12 12 12
WIND DIR NW NW NW NW NW NW NW NW W W SW SW S S S S S
WIND (MPH) 27 29 31 29 26 24 20 16 12 11 16 18 19 17 17 14 14
WIND GUST (MPH)
PRECIP PROB (%) 10 5 5 0 0 0 0 0 0 0 10 30 60 60 30 30 50
PRECIP TYPE R R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.03 0.02 0.02
6 HOUR SNOW 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 0.0 0.1 0.4 0.4 0.2 0.0 0.0 0.2 0.7 2.4 3.9 5.8 8.8 10.0 10.3 10.2 10.2
SNOW RATIO (:1) 14 14 12 11 10 7 4 4 3 1 1 1 1 0 0 0 0
$$
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN
* SNOW LEVEL IS AN AUTOMATED PARAMETER GENERATED FROM A CONSENSUS BLEND OF NUMERICAL WEATHER GUIDANCE.