Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
256
FWUS41 KGYX 182030
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 PM EDT TUE AUG 18 2026
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK OV OV SC BK OV SC FW OV OV BK FW SC BK BK SC
CLOUD COVER (%) 35 60 85 75 40 60 85 40 20 75 80 60 20 35 55 60 45
TEMPERATURE 49 47 46 46 48 51 53 53 49 48 48 47 46 48 50 50 46
MIN/MAX TEMP 46 55 46 52
WIND CHILL 39 39 39 39 38 38 38
WIND DIR W W W W W SW W W W W W W W W W W NW
WIND (MPH) 16 19 18 17 18 16 21 31 34 32 31 31 20 14 14 18 20
WIND GUST (MPH)
PRECIP PROB (%) 10 0 0 0 0 5 5 5 5 0 0 10 5 10 20 10 5
PRECIP TYPE 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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.3 9.4 9.7 9.6 9.1 9.4 10.0 11.2 11.2 10.7 10.0 9.5 9.2 8.9 8.6 8.9 8.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...FRANCONIA NOTCH/MOUNT LAFAYETTE (4000 FT)...
DATE WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK OV OV SC BK OV SC SC BK OV BK FW SC BK BK SC
CLOUD COVER (%) 40 60 70 75 35 55 80 40 25 65 75 60 20 30 60 65 45
TEMPERATURE 58 56 54 54 57 63 65 65 59 57 56 54 56 60 63 63 56
MIN/MAX TEMP 54 67 54 65
WIND CHILL
WIND DIR NW NW NW W W SW W W W W W NW NW NW W W NW
WIND (MPH) 6 6 5 4 6 9 11 13 11 10 8 9 5 6 8 8 5
WIND GUST (MPH)
PRECIP PROB (%) 5 0 0 0 0 0 5 5 5 0 0 10 5 10 20 10 5
PRECIP TYPE 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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.2 9.5 9.6 9.4 9.0 9.3 10.1 11.3 11.2 10.7 10.1 9.6 9.1 8.8 8.5 8.9 8.7
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...TUCKERMAN AND HUNTINGTON RAVINES (4500 FT)...
DATE WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK OV OV SC BK OV SC FW OV BK BK FW SC BK BK SC
CLOUD COVER (%) 35 55 75 70 35 60 85 45 15 70 65 55 15 30 55 55 40
TEMPERATURE 60 57 56 55 57 65 67 67 61 58 57 56 57 63 65 65 58
MIN/MAX TEMP 55 68 55 66
WIND CHILL
WIND DIR NW NW NW W W SW W W W W W NW NW NW W W NW
WIND (MPH) 8 8 8 8 8 8 11 13 12 12 10 12 8 6 6 8 8
WIND GUST (MPH)
PRECIP PROB (%) 10 0 0 0 0 5 5 5 0 0 0 10 5 10 20 10 5
PRECIP TYPE 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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.4 9.4 9.8 9.6 9.1 9.5 10.1 11.2 11.2 10.7 10.1 9.6 9.2 9.0 8.6 8.9 8.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 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 WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK OV BK SC BK OV SC FW OV OV BK FW SC BK BK SC
CLOUD COVER (%) 40 55 75 70 35 50 85 45 20 70 80 55 20 30 55 60 45
TEMPERATURE 62 58 56 55 60 68 71 70 63 59 57 55 58 65 69 67 59
MIN/MAX TEMP 55 71 55 69
WIND CHILL
WIND DIR N N N N SW W W W NW W NW NW NW NW W W NW
WIND (MPH) 2 2 2 2 2 5 9 8 4 4 4 5 5 6 8 6 5
WIND GUST (MPH)
PRECIP PROB (%) 10 0 0 0 0 5 5 5 5 0 0 10 5 10 20 10 5
PRECIP TYPE 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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.3 9.5 9.7 9.5 9.0 9.4 10.0 11.3 11.2 10.7 10.1 9.6 9.1 9.0 8.6 8.9 8.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...KANCAMAGUS HIGHWAY PASS (2855 FT)...
DATE WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK OV BK SC SC OV SC FW BK SC SC FW SC BK BK SC
CLOUD COVER (%) 35 55 80 70 30 45 90 50 15 60 45 45 15 25 55 55 40
TEMPERATURE 61 58 56 55 60 68 69 70 62 59 57 55 58 66 68 67 59
MIN/MAX TEMP 55 70 55 69
WIND CHILL
WIND DIR W NW NW W W SW W W W W W NW NW W W W NW
WIND (MPH) 3 4 4 4 4 6 9 9 8 6 5 6 4 5 5 5 4
WIND GUST (MPH)
PRECIP PROB (%) 10 0 0 0 0 0 0 0 0 0 0 5 5 10 20 20 5
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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.4 9.5 9.8 9.4 9.1 9.2 10.0 11.3 11.2 10.9 10.3 9.8 9.3 9.1 8.6 8.9 8.8
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...MOUNT OSCEOLA (4340 FT)...
DATE WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK OV BK SC SC OV SC FW BK SC SC FW SC BK BK SC
CLOUD COVER (%) 30 50 75 70 35 40 90 40 15 55 40 45 15 25 55 55 40
TEMPERATURE 58 56 54 53 57 62 64 65 59 58 56 54 55 61 63 62 56
MIN/MAX TEMP 53 65 53 63
WIND CHILL
WIND DIR NW NW NW W W W W W W NW W NW NW W W W NW
WIND (MPH) 8 10 10 6 8 9 11 13 14 14 11 12 8 6 6 6 9
WIND GUST (MPH)
PRECIP PROB (%) 5 0 0 0 0 0 5 0 0 0 0 10 5 5 20 10 5
PRECIP TYPE 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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.3 9.5 9.8 9.4 9.1 9.2 10.0 11.3 11.2 10.9 10.3 9.8 9.3 9.0 8.6 8.9 8.8
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...CANNON MOUNTAIN (4080 FT)...
DATE WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK BK OV SC SC OV SC SC BK BK BK FW SC BK BK SC
CLOUD COVER (%) 40 60 70 75 30 50 75 35 30 65 70 65 15 30 60 60 35
TEMPERATURE 59 57 56 55 57 62 65 65 60 58 57 56 56 59 63 63 57
MIN/MAX TEMP 55 68 55 66
WIND CHILL
WIND DIR NW NW NW W SW SW W W W W W NW NW NW W W NW
WIND (MPH) 8 8 6 6 6 9 11 13 13 10 10 10 6 6 6 6 8
WIND GUST (MPH)
PRECIP PROB (%) 5 0 0 0 0 0 5 5 5 0 0 10 5 10 20 10 5
PRECIP TYPE 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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.2 9.5 9.6 9.3 9.0 9.3 10.2 11.3 11.2 10.6 10.1 9.6 9.1 8.7 8.5 8.9 8.7
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...BALDFACE MOUNTAIN (3547 FT)...
DATE WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK OV OV SC SC OV BK FW BK SC SC SC SC BK BK SC
CLOUD COVER (%) 45 60 80 70 50 45 90 50 10 65 45 45 30 30 55 55 45
TEMPERATURE 63 62 60 58 60 68 72 71 65 62 61 59 60 67 70 69 62
MIN/MAX TEMP 58 72 58 71
WIND CHILL
WIND DIR NW NW NW W SW S SW W W W NW NW NW NW W W NW
WIND (MPH) 2 3 3 3 2 3 5 4 3 3 4 4 3 2 3 3 4
WIND GUST (MPH)
PRECIP PROB (%) 10 0 0 0 0 5 5 5 0 0 0 0 5 10 20 20 5
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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.5 9.5 9.7 9.6 9.2 9.3 10.4 11.2 11.3 10.9 10.3 9.7 9.5 9.2 8.9 9.0 8.7
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...MOUNT MOOSILAUKE (4802 FT)...
DATE WEDNESDAY 08/19/26 THURSDAY 08/20/26
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 BK OV BK SC SC OV SC SC BK SC BK FW SC BK BK SC
CLOUD COVER (%) 45 60 70 70 30 35 75 40 40 60 35 50 15 30 60 60 40
TEMPERATURE 58 56 55 54 57 62 64 64 59 57 56 55 56 59 62 62 56
MIN/MAX TEMP 54 65 54 63
WIND CHILL
WIND DIR NW N N W SW SW W W W NW W NW N NW W W NW
WIND (MPH) 6 8 6 5 5 8 8 10 9 10 9 8 5 5 5 5 6
WIND GUST (MPH)
PRECIP PROB (%) 5 0 0 0 0 0 0 5 0 0 0 10 5 10 20 10 5
PRECIP TYPE 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
6 HOUR ICE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
SNOW LEVEL (KFT) 9.3 9.5 9.6 9.2 9.2 9.3 10.3 11.3 11.1 10.6 10.1 9.7 9.2 8.7 8.5 8.8 8.7
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SNOW DENSITY (%) 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