Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
340
FWUS41 KGYX 172030
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 PM EDT MON AUG 17 2026
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV OV OV BK BK BK OV SC BK OV OV BK BK BK SC BK
CLOUD COVER (%) 80 85 85 80 65 65 70 75 45 55 85 80 55 55 55 40 50
TEMPERATURE 52 53 53 52 50 50 51 51 50 49 47 46 46 50 54 53 48
MIN/MAX TEMP 50 52 45 55
WIND CHILL 39 39 39
WIND DIR W NW NW NW NW N NW NW NW W W W W W W W W
WIND (MPH) 11 8 8 9 10 4 4 5 13 16 17 16 18 21 25 29 34
WIND GUST (MPH)
PRECIP PROB (%) 40 40 30 20 30 40 40 20 10 0 0 0 0 0 5 10 20
PRECIP TYPE R R R R R R R T R
6 HOUR QPF 0.06 0.01 0.01 0.01 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) 12.3 12.2 11.7 11.1 10.3 9.9 10.0 9.9 9.4 9.2 8.7 8.3 8.3 9.2 10.0 11.3 11.2
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 TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV OV OV BK BK OV BK SC SC OV BK BK SC BK SC BK
CLOUD COVER (%) 90 90 75 75 60 60 70 55 35 45 70 65 65 50 50 40 55
TEMPERATURE 61 60 59 59 59 61 63 64 59 56 54 54 56 63 66 65 59
MIN/MAX TEMP 58 65 53 67
WIND CHILL
WIND DIR NW N N N N N N NW N NW NW N W W W W W
WIND (MPH) 4 3 4 4 4 4 4 5 5 4 3 4 11 12 14 16 16
WIND GUST (MPH)
PRECIP PROB (%) 40 40 30 10 10 40 20 10 5 0 0 0 0 0 5 10 20
PRECIP TYPE R R R R T R
6 HOUR QPF 0.15 0.01 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) 12.6 12.3 11.7 10.9 10.0 9.7 9.7 9.6 9.0 8.7 8.5 8.4 8.7 10.3 10.5 11.5 11.1
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 TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV OV OV BK BK OV OV SC BK OV OV BK SC BK SC SC
CLOUD COVER (%) 80 85 80 80 60 60 75 75 45 55 75 70 50 45 55 35 45
TEMPERATURE 62 60 60 59 59 62 63 65 61 58 56 55 56 65 68 66 61
MIN/MAX TEMP 58 65 54 68
WIND CHILL
WIND DIR NW N N N N N N NW NW W W W W W W W W
WIND (MPH) 4 3 3 4 4 3 3 3 4 6 6 6 9 11 12 14 16
WIND GUST (MPH)
PRECIP PROB (%) 40 40 30 20 30 40 40 20 20 5 0 0 0 0 5 10 10
PRECIP TYPE R R R R R R R T R
6 HOUR QPF 0.07 0.01 0.02 0.02 0.01 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) 12.4 12.3 11.8 11.3 10.4 9.9 10.1 10.0 9.4 9.2 8.7 8.4 8.3 9.1 9.7 11.3 11.2
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 TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV OV OV BK BK BK OV BK SC OV OV BK SC SC SC BK
CLOUD COVER (%) 80 70 75 70 65 60 65 70 50 45 75 75 60 45 50 35 50
TEMPERATURE 64 62 61 60 61 65 67 68 63 59 56 55 58 68 71 69 62
MIN/MAX TEMP 59 69 54 71
WIND CHILL
WIND DIR NW N NW NW NW NW NW NW N NW NW NW NW W W W W
WIND (MPH) 2 2 2 2 2 2 3 3 3 3 3 3 2 4 9 8 5
WIND GUST (MPH)
PRECIP PROB (%) 40 40 30 10 30 40 40 20 10 0 0 0 0 0 5 10 10
PRECIP TYPE R R R R R R T
6 HOUR QPF 0.02 0.01 0.01 0.01 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) 12.4 12.3 11.9 11.1 10.2 9.8 9.9 9.8 9.2 9.0 8.6 8.4 8.5 9.8 10.3 11.4 11.2
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 TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV OV OV OV BK OV OV SC SC BK BK BK SC SC SC SC
CLOUD COVER (%) 85 75 70 80 70 70 75 70 50 45 50 65 50 30 50 30 45
TEMPERATURE 63 61 61 60 61 64 66 68 62 58 56 55 58 67 69 68 62
MIN/MAX TEMP 59 68 54 70
WIND CHILL
WIND DIR W NW N N N E NW NW NW NW NW NW W W W W W
WIND (MPH) 2 2 2 2 2 2 3 2 2 4 4 4 6 8 9 10 10
WIND GUST (MPH)
PRECIP PROB (%) 30 40 30 30 20 50 40 20 10 0 0 0 0 0 5 10 10
PRECIP TYPE R R R R R R R T
6 HOUR QPF 0.05 0.01 0.04 0.01 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) 12.7 12.5 12.0 11.3 10.2 9.8 10.0 9.8 9.2 9.1 8.6 8.5 8.6 10.0 9.7 11.5 11.2
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 TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV OV BK BK OV OV BK SC SC BK BK SC SC SC SC SC
CLOUD COVER (%) 80 75 75 65 65 70 75 60 40 45 50 65 50 35 50 30 50
TEMPERATURE 59 59 60 59 59 60 61 63 59 56 54 53 55 62 64 64 59
MIN/MAX TEMP 58 63 53 65
WIND CHILL
WIND DIR W N N NE N NE NW NW NW NW NW N W W W W W
WIND (MPH) 4 4 4 4 4 2 3 3 6 8 9 8 10 11 14 17 17
WIND GUST (MPH)
PRECIP PROB (%) 30 40 30 30 10 50 30 20 5 0 0 0 0 0 5 10 10
PRECIP TYPE R R R R R R T
6 HOUR QPF 0.03 0.01 0.02 0.01 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) 12.7 12.5 12.0 11.2 10.1 9.8 9.9 9.6 9.1 9.0 8.6 8.5 8.6 10.3 9.7 11.5 11.2
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 TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV BK BK SC BK OV BK FW SC BK BK BK SC BK SC BK
CLOUD COVER (%) 80 80 70 70 35 60 75 55 25 40 65 70 60 45 50 35 55
TEMPERATURE 62 61 60 60 59 60 62 64 60 57 55 55 56 61 66 66 59
MIN/MAX TEMP 59 66 54 68
WIND CHILL
WIND DIR NW N N N N N N NW N NW N N W W W W W
WIND (MPH) 5 4 5 5 5 3 4 5 6 5 4 4 11 12 14 16 16
WIND GUST (MPH)
PRECIP PROB (%) 40 40 30 10 10 40 20 10 5 0 0 0 0 0 5 10 20
PRECIP TYPE R R R R T R
6 HOUR QPF 0.19 0.01 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) 12.7 12.2 11.4 10.7 10.0 9.5 9.6 9.5 8.9 8.7 8.5 8.3 8.7 10.3 10.6 11.5 11.1
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 TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV OV OV OV BK OV OV BK BK OV OV SC SC BK SC SC
CLOUD COVER (%) 90 80 75 80 70 70 70 70 60 55 75 70 40 40 55 40 40
TEMPERATURE 64 63 64 63 62 65 67 68 64 62 61 59 60 68 72 71 65
MIN/MAX TEMP 62 69 58 73
WIND CHILL
WIND DIR SW N N N N N NE N NW NW NW NW NW SW SW W W
WIND (MPH) 2 2 1 2 2 2 2 2 1 3 4 4 2 2 5 4 3
WIND GUST (MPH)
PRECIP PROB (%) 40 50 40 30 40 50 40 40 30 20 10 0 0 0 5 10 10
PRECIP TYPE R R R R R R R R R R
6 HOUR QPF 0.15 0.06 0.01 0.04 0.01 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) 12.5 12.4 12.1 11.4 10.6 10.0 10.1 10.4 9.8 9.5 8.8 8.6 8.4 9.0 9.7 11.3 11.2
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 TUESDAY 08/18/26 WEDNESDAY 08/19/26
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 OV OV OV OV SC BK OV SC SC SC BK BK BK SC SC SC BK
CLOUD COVER (%) 85 90 80 75 45 55 75 50 25 35 65 60 65 45 50 45 55
TEMPERATURE 60 60 59 59 59 60 61 63 59 56 54 54 56 61 64 64 58
MIN/MAX TEMP 58 63 53 65
WIND CHILL
WIND DIR NW N N N N N N NW N N N NW W W W W W
WIND (MPH) 3 4 5 5 5 3 3 4 5 6 5 5 10 10 13 14 14
WIND GUST (MPH)
PRECIP PROB (%) 40 50 30 20 5 30 20 5 0 0 0 0 0 0 5 10 20
PRECIP TYPE R R R R R T R
6 HOUR QPF 0.14 0.01 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) 12.6 12.4 11.6 10.6 9.6 9.4 9.4 9.3 8.9 8.7 8.6 8.4 8.7 10.3 10.8 11.5 11.1
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