Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
425
FWUS41 KGYX 182030
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 PM EDT MON AUG 18 2025
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC SC BK BK BK BK OV OV OV BK OV BK BK OV OV OV
CLOUD COVER (%) 40 40 45 70 65 65 60 75 80 75 70 70 60 65 75 75 70
TEMPERATURE 40 38 36 36 38 43 47 47 43 43 43 42 43 45 46 46 43
MIN/MAX TEMP 36 49 41 47
WIND CHILL
WIND DIR N N S SW W SW SW SW SW S S S W S S SW W
WIND (MPH) 24 17 13 13 14 11 10 13 20 23 20 14 16 6 11 16 13
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 10 10 20 30 40 50 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.03 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) 6.6 6.7 6.7 6.6 6.6 6.8 7.5 7.8 7.6 7.7 8.3 8.9 9.6 9.3 9.8 10.6 10.7
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 TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC BK BK OV BK BK OV OV OV OV OV BK BK OV OV OV
CLOUD COVER (%) 45 40 50 70 75 65 65 75 85 75 75 75 60 65 70 75 70
TEMPERATURE 49 46 43 44 48 54 58 58 53 51 49 49 51 54 56 55 53
MIN/MAX TEMP 43 60 48 58
WIND CHILL
WIND DIR N E SE S S S S S S S S S W S S S W
WIND (MPH) 8 6 6 6 5 5 5 5 5 9 9 6 8 5 8 3 5
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 10 10 30 30 40 50 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.03 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) 6.7 6.7 6.7 6.7 6.6 6.7 7.2 7.4 7.6 7.9 8.6 8.8 10.2 10.3 10.4 10.7 10.9
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 TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC SC BK BK BK BK OV OV OV BK OV BK BK OV OV BK
CLOUD COVER (%) 40 40 45 70 65 65 55 75 80 70 70 70 60 65 75 75 70
TEMPERATURE 49 44 41 41 46 55 58 59 52 50 49 49 51 56 57 56 52
MIN/MAX TEMP 41 60 48 57
WIND CHILL
WIND DIR N N SE S SW S S S S S S S W S S SW W
WIND (MPH) 9 6 5 5 5 5 5 6 8 9 8 5 5 4 8 3 4
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 10 10 20 30 40 40 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.03 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) 6.7 6.7 6.7 6.6 6.6 6.8 7.5 7.8 7.6 7.7 8.4 9.0 9.4 9.3 9.8 10.6 10.8
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 TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC SC BK BK BK BK OV OV OV OV OV BK BK OV OV OV
CLOUD COVER (%) 40 40 50 70 70 65 60 75 80 75 70 75 60 65 75 75 70
TEMPERATURE 50 46 41 41 47 58 62 62 57 53 51 51 53 59 60 59 56
MIN/MAX TEMP 40 64 49 60
WIND CHILL
WIND DIR N E SE SE SE S SW S SE S S S S S S S SE
WIND (MPH) 6 4 4 4 4 4 5 5 5 5 5 4 3 5 6 5 5
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 10 10 20 30 40 50 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.02 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) 6.7 6.7 6.7 6.6 6.5 6.6 7.4 7.7 7.6 7.8 8.3 8.6 9.8 9.9 10.2 10.6 10.8
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 TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC SC BK OV BK BK OV OV BK OV OV BK BK BK OV BK
CLOUD COVER (%) 40 35 50 65 70 60 60 80 80 65 75 70 55 55 65 70 65
TEMPERATURE 51 48 44 44 49 57 61 61 55 51 50 49 52 58 59 59 55
MIN/MAX TEMP 43 61 48 60
WIND CHILL
WIND DIR N NE E E E S S S S S SW SW W S S NW W
WIND (MPH) 5 5 4 4 4 4 5 5 4 4 4 3 4 4 5 1 3
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 10 10 30 30 40 50 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.01 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) 6.9 6.9 6.8 6.8 6.7 6.7 7.1 7.4 7.6 7.8 8.3 9.2 10.3 10.3 10.5 10.7 11.0
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 TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC SC BK OV BK BK OV OV BK OV OV BK BK BK OV BK
CLOUD COVER (%) 45 40 50 65 70 60 60 80 80 70 75 70 55 55 65 70 65
TEMPERATURE 48 46 45 44 47 52 56 57 52 50 48 49 50 53 55 55 52
MIN/MAX TEMP 43 57 48 56
WIND CHILL
WIND DIR N E E E SE S SW S S SE S S W S S W W
WIND (MPH) 9 9 8 6 5 5 5 5 8 9 8 5 8 4 6 3 5
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 10 10 30 30 40 50 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.02 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) 6.9 6.9 6.8 6.8 6.7 6.7 7.1 7.4 7.7 7.9 8.3 9.4 10.3 10.3 10.5 10.8 11.0
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 TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC BK BK OV BK BK OV OV OV OV OV BK BK OV OV BK
CLOUD COVER (%) 45 40 50 70 80 65 65 75 80 75 75 75 60 65 70 75 70
TEMPERATURE 50 46 42 44 47 52 57 57 54 53 51 51 51 53 55 55 54
MIN/MAX TEMP 42 61 49 58
WIND CHILL
WIND DIR N E SE SE S S S S S SE SE SE W S S SW W
WIND (MPH) 10 9 8 8 6 5 5 5 8 11 11 9 8 5 8 4 4
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 10 10 30 30 40 50 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.03 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) 6.7 6.7 6.7 6.7 6.6 6.7 7.1 7.4 7.6 8.0 8.7 9.2 10.3 10.3 10.5 10.8 10.9
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 TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC SC BK BK BK SC OV OV OV BK BK BK BK BK OV BK
CLOUD COVER (%) 35 40 40 65 60 70 50 70 75 70 70 65 55 60 65 75 65
TEMPERATURE 54 48 44 43 47 59 64 64 57 54 53 53 54 60 63 62 58
MIN/MAX TEMP 43 66 51 64
WIND CHILL
WIND DIR N N E SE S S S S S S S SW SE S S S SE
WIND (MPH) 5 4 2 2 2 3 4 5 5 5 3 2 2 4 5 5 4
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 5 10 20 20 40 40 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.01 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) 6.6 6.6 6.6 6.6 6.6 6.6 7.2 7.6 7.6 7.8 8.3 8.7 9.1 9.2 9.5 10.5 10.7
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 TUESDAY 08/19/25 WEDNESDAY 08/20/25
TIME (LT) 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
8P 11P 2A 5A 8A 11A 2P 5P 8P 11P 2A 5A 8A 11A 2P 5P 8P
CLOUD COVER SC SC BK BK OV BK BK OV OV OV OV OV BK BK BK OV BK
CLOUD COVER (%) 50 45 50 70 80 60 60 80 75 70 75 75 60 60 65 70 65
TEMPERATURE 48 44 43 43 46 53 56 57 53 51 50 49 51 53 54 54 53
MIN/MAX TEMP 43 57 48 55
WIND CHILL
WIND DIR N NE SE SE SE S S S SE SE SE SE SW S S SW W
WIND (MPH) 9 8 6 6 5 5 5 5 6 10 10 9 6 5 8 3 5
WIND GUST (MPH)
PRECIP PROB (%) 0 0 0 0 0 0 0 0 5 5 10 10 30 30 40 50 30
PRECIP TYPE R R R R R
6 HOUR QPF 0.00 0.00 0.00 0.00 0.00 0.00 0.03 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) 6.7 6.8 6.8 6.7 6.6 6.8 7.1 7.5 7.7 8.0 8.8 10.0 10.4 10.4 10.7 10.9 11.0
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.