Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
332
FWUS41 KGYX 202030
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 PM EDT SUN SEP 20 2026
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 SC BK BK BK OV OV OV OV OV OV SC SC SC SC
CLOUD COVER (%) 95 85 65 45 55 65 55 75 85 90 95 100 70 45 50 40 30
TEMPERATURE 37 38 40 37 34 34 36 34 32 31 31 30 29 34 37 36 32
MIN/MAX TEMP 33 38 28 39
WIND CHILL 29 32 30 24 20 21 25 21 18 17 18 18 18 27 30 26 20
WIND DIR W W NW NW NW N N N N N NE E NE E NE NE E
WIND (MPH) 11 9 20 29 31 27 21 25 29 25 20 18 14 9 10 17 19
WIND GUST (MPH)
PRECIP PROB (%) 50 10 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.03 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 8.3 7.2 6.4 5.8 5.2 5.5 5.2 4.7 4.9 4.8 4.7 4.5 4.8 5.2 5.4 5.1
SNOW RATIO (:1) 1 1 1 1 1 0 0 0 0 1 1 2 2 2 3 3 3
SNOW DENSITY (%) 100 100 100 100 100 0 0 0 0 100 100 50 50 50 33 33 33
...FRANCONIA NOTCH/MOUNT LAFAYETTE (4000 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 OV OV BK BK OV OV OV OV OV SC SC SC SC
CLOUD COVER (%) 95 90 75 65 70 85 60 70 90 90 95 95 70 40 50 35 30
TEMPERATURE 43 44 45 44 43 45 48 47 41 38 38 38 38 46 51 51 42
MIN/MAX TEMP 41 49 36 53
WIND CHILL 38 37 35 32
WIND DIR S W NW N N N N N N NE E E E NE N NE E
WIND (MPH) 4 3 5 10 10 10 10 9 9 8 6 6 5 3 5 5 8
WIND GUST (MPH)
PRECIP PROB (%) 50 5 5 5 5 5 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.03 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) 9.6 8.2 7.0 6.4 5.8 5.1 5.3 4.9 4.8 5.1 5.3 5.1 5.0 4.9 5.6 6.3 5.9
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 1 2 2 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 100 50 50 50 50
...TUCKERMAN AND HUNTINGTON RAVINES (4500 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 SC SC BK SC OV OV OV OV OV OV SC SC SC FW
CLOUD COVER (%) 95 85 60 40 30 55 50 70 90 90 95 95 70 40 45 35 25
TEMPERATURE 43 44 47 45 43 48 51 49 42 41 40 39 38 47 51 50 42
MIN/MAX TEMP 42 51 37 52
WIND CHILL 39 36 36 35
WIND DIR SW W NW N N N N N N N N NE NE E NE NE E
WIND (MPH) 4 4 8 11 12 11 10 10 11 10 8 6 5 4 5 8 6
WIND GUST (MPH)
PRECIP PROB (%) 50 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.03 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) 9.6 8.4 7.2 6.4 5.8 5.2 5.5 5.2 4.8 4.9 4.8 4.6 4.5 4.8 5.2 5.4 5.1
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 2 2 2 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 50 50 50 50 50
...CRAWFORD NOTCH AMC HIGHLAND CENTER (1900 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 BK OV OV OV OV OV OV SC SC SC SC
CLOUD COVER (%) 95 90 80 65 65 85 65 80 85 90 95 95 75 45 45 35 30
TEMPERATURE 49 46 48 46 45 50 53 52 44 41 40 40 41 51 55 54 44
MIN/MAX TEMP 43 54 38 56
WIND CHILL
WIND DIR S N NW N N NW NW N N N E E E NE NE NE E
WIND (MPH) 2 1 4 8 8 10 10 9 6 4 3 3 3 3 5 5 4
WIND GUST (MPH)
PRECIP PROB (%) 50 5 5 0 0 5 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.03 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) 9.6 8.3 7.1 6.4 5.8 5.2 5.3 5.2 4.8 5.0 5.0 4.9 4.7 4.8 5.4 5.7 5.3
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 1 2 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 100 50 100 50 50
...KANCAMAGUS HIGHWAY PASS (2855 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 SC SC SC SC BK OV OV OV OV OV BK SC SC SC
CLOUD COVER (%) 95 90 65 50 30 45 50 60 90 90 95 95 70 55 50 35 30
TEMPERATURE 46 46 48 46 45 52 55 53 44 42 42 41 41 50 54 52 44
MIN/MAX TEMP 43 55 39 54
WIND CHILL
WIND DIR S W NW N N N N N N N NE NE NE E E E NE
WIND (MPH) 2 2 4 8 8 6 6 6 6 6 5 4 4 3 4 5 4
WIND GUST (MPH)
PRECIP PROB (%) 60 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.04 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) 9.9 8.7 7.4 6.5 5.8 5.3 5.4 5.2 5.2 5.5 5.3 5.1 4.8 4.9 5.7 6.1 5.7
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
...MOUNT OSCEOLA (4340 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 SC SC SC SC BK OV OV OV OV OV BK SC SC SC
CLOUD COVER (%) 95 90 65 50 35 45 45 60 95 90 95 95 70 55 50 40 35
TEMPERATURE 43 44 46 44 44 47 49 48 42 41 40 40 40 46 49 48 42
MIN/MAX TEMP 42 50 38 50
WIND CHILL 37 37 35 33 33 34 36
WIND DIR S NW NW N N N N N N NE NE E NE E E E E
WIND (MPH) 3 5 10 14 14 9 8 9 13 14 11 9 8 3 3 5 9
WIND GUST (MPH)
PRECIP PROB (%) 60 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.04 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) 9.9 8.7 7.3 6.5 5.8 5.2 5.4 5.1 5.3 5.6 5.3 5.1 5.0 5.0 5.8 6.1 5.8
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 1 2 2 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 100 50 50 50 50
...CANNON MOUNTAIN (4080 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 OV OV BK BK OV OV OV OV OV SC SC SC SC
CLOUD COVER (%) 95 90 75 65 70 85 60 65 90 90 90 95 70 40 45 35 30
TEMPERATURE 44 45 47 45 44 44 47 46 42 40 39 39 39 45 50 50 43
MIN/MAX TEMP 43 50 37 53
WIND CHILL 39 38 38 35 33 33 33
WIND DIR S SW N N N N N N N NE E E NE NE N NE E
WIND (MPH) 5 4 8 12 11 10 10 10 12 11 9 8 6 3 4 5 9
WIND GUST (MPH)
PRECIP PROB (%) 50 5 0 0 5 5 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.03 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) 9.6 8.2 7.0 6.4 5.8 5.1 5.2 4.9 4.8 5.1 5.4 5.2 5.1 4.9 5.6 6.3 5.9
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 2 2 2 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 50 50 50 50 50
...BALDFACE MOUNTAIN (3547 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 SC SC SC SC OV OV OV OV OV OV SC SC SC SC
CLOUD COVER (%) 95 85 50 30 30 45 40 80 90 90 95 95 80 45 45 30 30
TEMPERATURE 49 48 50 48 47 53 56 54 47 46 45 44 42 50 54 54 46
MIN/MAX TEMP 45 56 42 55
WIND CHILL
WIND DIR SW W NW N N N N N N N N N N E NE E NE
WIND (MPH) 2 2 4 8 9 6 6 6 9 9 6 5 4 3 4 4 3
WIND GUST (MPH)
PRECIP PROB (%) 50 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.03 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) 9.7 8.6 7.4 6.5 5.8 5.1 5.1 4.8 4.8 5.0 4.6 4.4 4.1 4.5 4.6 5.2 5.0
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 2 2 1 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 50 50 100 50 50
...MOUNT MOOSILAUKE (4802 FT)...
DATE MONDAY 09/21/26 TUESDAY 09/22/26
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 BK BK OV OV OV OV OV SC SC SC SC
CLOUD COVER (%) 95 90 80 70 65 80 60 70 95 90 95 95 80 45 45 40 40
TEMPERATURE 44 45 45 44 43 45 47 45 41 39 39 39 39 46 50 49 42
MIN/MAX TEMP 42 47 37 50
WIND CHILL 38 36 34 32
WIND DIR S S N N N N N N N N NE NE NE E N NE E
WIND (MPH) 4 4 9 12 12 9 8 9 11 11 6 5 4 2 3 3 6
WIND GUST (MPH)
PRECIP PROB (%) 50 5 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0
PRECIP TYPE R
6 HOUR QPF 0.03 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) 9.8 8.3 7.0 6.4 5.8 5.1 5.1 4.9 4.9 5.6 5.7 5.4 5.2 5.1 6.0 6.4 6.1
SNOW RATIO (:1) 0 0 0 0 0 0 0 0 0 1 1 1 1 2 2 2 2
SNOW DENSITY (%) 0 0 0 0 0 0 0 0 0 100 100 100 100 50 50 50 50
$$
--- PRECIP TYPE CODES ---
CODE TYPE
T THUNDERSTORMS
R RAIN
S SNOW
I SLEET
Z FREEZING RAIN