Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
407
FWUS41 KGYX 180830
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 AM EDT MON AUG 18 2025
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 SC SC SC SC SC BK OV BK BK BK OV OV OV OV OV
CLOUD COVER (%) 5 15 30 35 45 35 30 60 75 65 65 60 70 80 70 85 70
TEMPERATURE 40 42 44 45 39 38 37 37 38 42 44 48 45 44 43 43 43
MAX/MIN TEMP 47 35 49 41
WIND CHILL
WIND DIR N N N NW NW N S SW SW SE S S SE SE SE SE SE
WIND (MPH) 32 24 18 14 13 17 13 12 13 12 12 17 24 26 24 18 17
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 10 20 30
PRECIP TYPE R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 4.9 5.2 6.2 6.7 6.8 6.8 6.7 6.6 6.6 6.9 7.6 8.2 8.2 8.4 8.8 9.9 10.5
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...FRANCONIA NOTCH/MOUNT LAFAYETTE (4000 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 SC SC SC SC SC BK BK BK BK BK OV OV OV OV OV
CLOUD COVER (%) 10 25 30 30 45 30 35 60 65 70 65 60 75 70 75 85 70
TEMPERATURE 46 51 55 56 48 44 43 43 46 52 55 58 54 53 51 50 51
MAX/MIN TEMP 58 42 61 49
WIND CHILL
WIND DIR N N N N N E SE S S S S S SE SE SE SE SE
WIND (MPH) 16 14 12 9 6 6 6 5 5 5 6 6 6 10 10 8 6
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 20 20 30
PRECIP TYPE R R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 5.0 5.1 6.1 6.6 6.8 6.8 6.7 6.6 6.6 6.7 7.3 7.9 8.3 8.6 8.9 10.1 10.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...TUCKERMAN AND HUNTINGTON RAVINES (4500 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 SC SC SC SC SC BK OV BK BK BK OV OV OV OV BK
CLOUD COVER (%) 5 15 30 35 45 35 30 55 75 65 65 60 70 80 70 85 70
TEMPERATURE 47 54 57 59 50 44 42 42 47 52 56 60 54 52 50 49 51
MAX/MIN TEMP 60 41 61 49
WIND CHILL
WIND DIR N N N N NW N SE S S S S S S SE S S S
WIND (MPH) 16 14 12 9 6 6 5 5 5 5 5 8 9 10 9 6 6
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 10 20 20
PRECIP TYPE R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 5.0 5.3 6.2 6.7 6.8 6.8 6.7 6.6 6.6 6.9 7.6 8.2 8.3 8.4 8.8 9.9 10.5
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...CRAWFORD NOTCH AMC HIGHLAND CENTER (1900 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 SC SC SC SC SC BK OV BK BK BK OV OV OV OV OV
CLOUD COVER (%) 10 20 30 35 45 30 30 60 70 65 65 60 75 75 70 85 70
TEMPERATURE 49 55 60 61 52 47 45 44 48 55 60 63 57 55 52 52 53
MAX/MIN TEMP 62 41 64 50
WIND CHILL
WIND DIR N N N N N E SE SE SE S S S S SE S S S
WIND (MPH) 9 11 9 8 3 4 3 4 4 5 5 6 5 6 5 5 5
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 20 20 30
PRECIP TYPE R R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 4.9 5.2 6.2 6.8 6.8 6.8 6.7 6.6 6.5 6.8 7.5 8.1 8.1 8.3 8.8 10.0 10.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...KANCAMAGUS HIGHWAY PASS (2855 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 CL FW SC SC SC SC SC BK BK BK BK BK OV OV OV OV BK
CLOUD COVER (%) 5 15 35 30 45 30 30 55 65 65 60 60 75 70 70 85 65
TEMPERATURE 50 57 61 62 52 47 44 44 48 55 58 62 56 53 51 50 53
MAX/MIN TEMP 62 43 62 49
WIND CHILL
WIND DIR N N N N N E E E E S S S S SE S S S
WIND (MPH) 8 9 8 5 3 5 4 3 3 4 5 5 5 5 4 4 4
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 20 20 20
PRECIP TYPE R R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 5.2 5.4 6.5 7.1 7.1 6.9 6.8 6.7 6.6 6.9 7.3 7.9 8.3 8.5 8.9 10.1 10.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...MOUNT OSCEOLA (4340 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 CL FW SC SC SC SC SC BK BK BK BK BK OV OV OV OV BK
CLOUD COVER (%) 5 20 35 30 45 30 30 55 65 65 60 60 75 70 70 85 65
TEMPERATURE 48 53 56 57 50 46 43 44 46 50 53 58 53 52 49 49 50
MAX/MIN TEMP 58 42 58 48
WIND CHILL
WIND DIR N N N N N E E E SE S S S S SE SE SE SE
WIND (MPH) 14 11 10 6 4 9 8 5 5 5 5 6 9 10 9 6 6
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 20 20 20
PRECIP TYPE R R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 5.1 5.4 6.5 7.1 7.1 6.9 6.8 6.7 6.6 6.8 7.2 7.9 8.4 8.6 8.9 10.1 10.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...CANNON MOUNTAIN (4080 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 SC SC SC SC SC BK BK BK BK BK OV OV OV OV OV
CLOUD COVER (%) 10 25 30 30 45 30 35 65 65 70 65 60 75 70 75 85 70
TEMPERATURE 47 50 54 55 50 47 45 44 48 50 54 58 56 55 52 52 52
MAX/MIN TEMP 59 42 62 50
WIND CHILL
WIND DIR N N N N N E SE SE S S S S SE SE SE SE SE
WIND (MPH) 17 14 12 10 6 9 8 8 6 5 6 6 9 12 12 10 9
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 20 20 30
PRECIP TYPE R R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 4.9 5.0 6.0 6.5 6.7 6.8 6.6 6.6 6.6 6.7 7.2 7.8 8.3 8.6 8.9 10.1 10.7
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...BALDFACE MOUNTAIN (3547 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 CL FW SC SC SC SC FW BK OV BK BK BK OV OV BK OV BK
CLOUD COVER (%) 5 15 30 30 35 40 25 55 75 60 65 55 70 75 70 80 65
TEMPERATURE 51 59 64 64 56 49 47 46 50 57 62 65 58 55 54 53 54
MAX/MIN TEMP 66 44 66 52
WIND CHILL
WIND DIR N N N N N N E SE SE S S S S S S S S
WIND (MPH) 12 12 10 8 5 4 2 2 2 3 4 5 6 5 4 3 3
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 10 20 20
PRECIP TYPE R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 4.8 5.0 6.0 6.5 6.7 6.7 6.7 6.6 6.6 6.7 7.4 8.3 8.4 8.3 8.7 9.8 10.4
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...MOUNT MOOSILAUKE (4802 FT)...
DATE MONDAY 08/18/25 TUESDAY 08/19/25
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 SC SC SC SC SC BK BK BK BK BK OV BK OV OV OV
CLOUD COVER (%) 5 20 30 30 45 30 30 65 60 65 65 60 75 65 75 85 70
TEMPERATURE 47 50 54 55 49 45 43 43 47 50 53 58 54 53 51 51 51
MAX/MIN TEMP 56 43 58 50
WIND CHILL
WIND DIR N N N N N E SE SE SE S S S SE SE SE SE SE
WIND (MPH) 17 14 12 10 8 8 6 6 5 5 5 5 8 11 11 10 9
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 0 0 0 0 5 10 10 20 20
PRECIP TYPE R R
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 5.1 5.2 5.9 6.5 6.8 6.8 6.7 6.6 6.6 6.8 7.2 7.9 8.5 8.7 9.0 10.3 10.7
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 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.