Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
334
FWUS41 KGYX 200830
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 AM EDT SUN SEP 20 2026
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV OV BK BK BK BK BK BK BK OV OV BK
CLOUD COVER (%) 70 90 95 95 95 80 75 60 55 60 65 55 60 60 70 75 65
TEMPERATURE 34 38 36 36 37 38 38 37 33 34 37 36 31 30 29 27 29
MAX/MIN TEMP 40 32 38 27
WIND CHILL 21 26 24 24 26 27 26 24 18 20 24 23 17 17 18 15 17
WIND DIR SW SW SW SW W W NW NW NW NW NW NW N N N NW N
WIND (MPH) 25 28 24 25 23 21 26 32 34 29 31 28 26 20 13 14 18
WIND GUST (MPH)
PRECIP PROB (%) 0 40 80 90 50 20 0 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.03 0.26 0.03 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) 6.3 7.8 9.8 9.9 9.5 8.7 7.6 6.6 5.7 5.5 5.8 5.5 4.7 4.6 4.6 4.5 4.2
SNOW RATIO (:1) 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 3
SNOW DENSITY (%) 100 100 100 100 100 100 100 100 100 100 100 100 100 100 50 50 33
...FRANCONIA NOTCH/MOUNT LAFAYETTE (4000 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV OV BK BK BK BK SC BK BK BK OV OV
CLOUD COVER (%) 80 90 95 95 90 85 75 60 60 65 60 50 65 65 70 75 70
TEMPERATURE 43 44 42 42 43 43 44 43 40 45 49 47 39 37 36 35 37
MAX/MIN TEMP 46 40 50 34
WIND CHILL 36 36 35 35 37 35 31 37 31 30
WIND DIR SW SW S SW SW W NW NW N N NW N N N N NW N
WIND (MPH) 14 17 13 12 9 9 13 16 18 19 17 18 13 9 4 4 6
WIND GUST (MPH)
PRECIP PROB (%) 5 60 90 90 50 20 0 5 5 5 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.06 0.25 0.03 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) 6.5 9.3 10.2 10.2 9.7 8.7 7.6 6.5 5.7 5.4 5.4 5.1 4.8 4.7 5.0 4.9 4.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 1 1 1 1 0 1 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 100 100 100 100 0 100 100 50 50
...TUCKERMAN AND HUNTINGTON RAVINES (4500 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV BK BK SC BK SC SC BK BK BK BK BK
CLOUD COVER (%) 65 85 95 95 90 80 60 55 45 55 50 45 55 60 70 70 60
TEMPERATURE 43 44 42 42 42 43 45 43 41 48 52 50 41 39 37 36 37
MAX/MIN TEMP 46 40 52 35
WIND CHILL 36 37 35 35 36 37 39 36 32 33 32 31
WIND DIR SW SW SW SW W W NW NW NW NW NW NW N N N NW N
WIND (MPH) 13 14 13 13 10 10 12 14 17 18 18 18 13 10 5 5 8
WIND GUST (MPH)
PRECIP PROB (%) 0 40 80 90 50 20 0 0 0 5 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.03 0.27 0.03 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) 6.2 7.7 9.8 9.9 9.6 8.8 7.7 6.7 5.7 5.5 5.8 5.6 4.8 4.5 4.6 4.5 4.2
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 100 100 100 50 50
...CRAWFORD NOTCH AMC HIGHLAND CENTER (1900 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV OV BK SC BK BK SC BK BK OV OV OV
CLOUD COVER (%) 65 90 95 95 95 80 70 55 40 60 55 45 55 65 70 75 70
TEMPERATURE 44 49 47 46 45 45 46 44 43 50 54 52 43 39 38 36 40
MAX/MIN TEMP 51 41 54 36
WIND CHILL
WIND DIR S S S SE SE SE NW NW N N NW N N N NE E E
WIND (MPH) 8 9 9 5 3 2 4 8 9 10 10 10 8 5 3 3 3
WIND GUST (MPH)
PRECIP PROB (%) 0 50 80 90 50 20 0 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.03 0.24 0.03 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) 6.4 8.3 9.9 10.0 9.6 8.8 7.6 6.6 5.7 5.5 5.6 5.4 4.7 4.6 4.6 4.7 4.3
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 0 100 100 50 50
...KANCAMAGUS HIGHWAY PASS (2855 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV BK SC SC SC BK SC BK BK OV OV BK
CLOUD COVER (%) 70 85 95 95 90 80 65 35 40 45 65 35 60 65 75 75 65
TEMPERATURE 43 47 46 45 44 45 47 44 43 52 55 53 43 40 39 38 40
MAX/MIN TEMP 49 41 55 37
WIND CHILL 38 37
WIND DIR SW S S S SW NW NW N NW NW NW NW N N N N N
WIND (MPH) 6 9 6 5 2 4 8 10 10 12 12 12 8 5 3 3 4
WIND GUST (MPH)
PRECIP PROB (%) 0 50 80 90 60 20 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.04 0.29 0.04 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) 6.4 9.2 10.4 10.5 10.0 9.1 7.9 6.8 5.9 5.6 5.9 5.6 5.3 5.1 4.8 4.7 4.5
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 50 50
...MOUNT OSCEOLA (4340 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV BK SC SC SC BK SC BK BK OV OV BK
CLOUD COVER (%) 65 90 95 95 90 80 65 45 40 50 65 35 60 65 75 75 65
TEMPERATURE 42 43 41 41 43 44 45 43 42 47 50 48 41 39 38 38 37
MAX/MIN TEMP 45 40 50 36
WIND CHILL 36 36 35 39 35 34 34 33 31
WIND DIR SW SW S SW W W NW NW NW NW NW NW N N N N N
WIND (MPH) 11 12 10 6 6 8 11 16 17 18 17 17 12 9 6 6 8
WIND GUST (MPH)
PRECIP PROB (%) 0 60 80 90 60 20 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.04 0.28 0.03 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) 6.5 9.3 10.5 10.6 10.0 9.1 7.9 6.8 5.9 5.6 5.9 5.6 5.3 5.2 5.0 4.9 4.6
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 0 1 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 0 100 100 50 50
...CANNON MOUNTAIN (4080 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV OV BK BK BK BK SC BK BK BK OV BK
CLOUD COVER (%) 75 90 95 95 90 85 75 60 60 65 65 50 65 65 70 70 70
TEMPERATURE 44 44 41 42 44 45 45 45 42 44 48 47 40 38 37 36 38
MAX/MIN TEMP 46 41 50 36
WIND CHILL 38 37 34 36 39 38 33 36 32 31
WIND DIR SW SW S SW W W NW NW N N NW N N N N NW NW
WIND (MPH) 12 14 11 10 8 9 12 16 18 18 18 17 14 10 5 5 6
WIND GUST (MPH)
PRECIP PROB (%) 0 60 90 90 50 20 0 5 5 5 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.07 0.24 0.02 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) 6.6 9.4 10.3 10.3 9.8 8.7 7.5 6.5 5.7 5.4 5.4 5.2 4.7 4.7 5.1 5.0 4.7
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 1 1 1 1 0 1 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 100 100 100 100 0 100 100 50 50
...BALDFACE MOUNTAIN (3547 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV BK SC SC BK BK BK BK BK BK BK BK
CLOUD COVER (%) 70 85 95 95 95 75 65 45 30 60 50 55 55 60 70 70 65
TEMPERATURE 45 50 49 47 46 47 49 47 44 52 56 54 46 44 43 42 41
MAX/MIN TEMP 52 44 56 40
WIND CHILL 38
WIND DIR S S S S S S N NW N N N N N NW N N NE
WIND (MPH) 4 6 4 2 2 2 4 9 10 8 6 6 8 9 8 5 4
WIND GUST (MPH)
PRECIP PROB (%) 0 30 80 90 50 20 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.01 0.18 0.02 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) 6.0 7.0 9.2 9.9 9.7 9.0 7.9 6.8 5.8 5.4 5.6 5.3 4.9 4.5 4.6 4.4 4.1
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 0 0 0 0 100 100 50 50
...MOUNT MOOSILAUKE (4802 FT)...
DATE SUNDAY 09/20/26 MONDAY 09/21/26
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 OV OV OV OV OV OV BK BK BK BK BK BK OV OV OV OV
CLOUD COVER (%) 80 90 95 95 95 90 80 65 60 70 65 55 65 70 75 80 70
TEMPERATURE 43 44 42 42 43 44 44 43 40 44 48 46 40 38 37 36 37
MAX/MIN TEMP 46 40 48 35
WIND CHILL 37 37 36 38 36 31 36 39 33 32
WIND DIR SW S S SW SW W NW N N N N N N N N NW NW
WIND (MPH) 11 14 11 8 6 6 11 14 17 18 18 17 12 9 4 4 5
WIND GUST (MPH)
PRECIP PROB (%) 0 50 90 90 50 20 0 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE R R R R R
6 HOUR QPF 0.07 0.22 0.02 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) 6.8 10.3 10.6 10.8 10.0 8.9 7.7 6.5 5.8 5.3 5.4 5.2 5.0 5.2 5.4 5.2 4.8
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 0 0 1 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 0 0 100 100 50 50
$$
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN