Avalanche Weather Guidance
Issued by NWS Portland, ME
Issued by NWS Portland, ME
153
FWUS41 KGYX 200830
AVGGYX
AVALANCHE WEATHER GUIDANCE
NATIONAL WEATHER SERVICE GRAY ME
430 AM EDT WED AUG 20 2025
...PRESIDENTIAL RANGE FORECAST AREA/MOUNT WASHINGTON (6,288 FT)...
DATE WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 75 80 85 80 55 40 35 40 35 30 20 15 10 20 15 25 20
TEMPERATURE 43 44 45 44 41 40 41 41 42 46 50 49 46 43 41 41 42
MAX/MIN TEMP 46 38 52 40
WIND CHILL
WIND DIR SE SE SE SE E SE SE NE E E NE NE N E NE NE N
WIND (MPH) 10 8 10 12 9 11 10 11 12 9 8 10 19 17 19 21 20
WIND GUST (MPH)
PRECIP PROB (%) 5 10 10 10 10 5 5 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 9.7 10.1 9.7 10.4 10.9 10.7 10.3 10.3 10.1 10.3 10.2 10.2 9.8 9.7 9.4 9.3 9.0
SNOW RATIO (:1) 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
...FRANCONIA NOTCH/MOUNT LAFAYETTE (4000 FT)...
DATE WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 80 85 90 75 55 35 35 45 35 30 25 15 10 15 15 25 20
TEMPERATURE 52 52 53 52 49 48 47 48 51 56 60 60 53 49 48 47 52
MAX/MIN TEMP 55 45 63 47
WIND CHILL
WIND DIR SE SE SE SE E SE SE NE E E NE NE N E E NE NE
WIND (MPH) 5 5 8 6 4 6 5 4 5 5 5 6 8 6 8 9 8
WIND GUST (MPH)
PRECIP PROB (%) 10 10 20 20 10 10 5 5 5 0 0 0 0 0 0 0 0
PRECIP TYPE R R
6 HOUR QPF 0.01 0.03 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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 10.0 10.6 10.7 11.2 11.3 11.1 10.8 10.7 10.5 10.6 10.4 10.3 9.9 9.7 9.4 9.4 9.1
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 WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 75 80 85 80 55 40 35 40 35 30 20 15 10 20 15 25 20
TEMPERATURE 52 54 55 54 50 48 47 47 51 58 61 60 53 49 48 47 52
MAX/MIN TEMP 56 46 63 47
WIND CHILL
WIND DIR SE SE SE SE E SE SE N E E E NE N NE N N N
WIND (MPH) 4 6 8 6 3 4 3 4 5 6 5 8 8 6 8 9 9
WIND GUST (MPH)
PRECIP PROB (%) 5 10 10 10 10 5 5 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 9.7 10.1 9.6 10.3 10.9 10.8 10.3 10.3 10.1 10.2 10.2 10.2 9.8 9.7 9.4 9.3 9.0
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 WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 75 80 90 80 55 40 35 40 35 30 20 15 10 15 15 25 20
TEMPERATURE 55 56 58 57 53 51 49 48 53 60 64 64 56 51 50 48 54
MAX/MIN TEMP 60 48 66 48
WIND CHILL
WIND DIR SE SE SE SE SE SE SE NE SE E E E NE E NE NE N
WIND (MPH) 3 6 6 5 3 3 2 1 3 6 4 5 3 5 5 5 5
WIND GUST (MPH)
PRECIP PROB (%) 10 10 10 10 10 5 5 5 5 0 0 0 0 0 0 0 0
PRECIP TYPE
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 9.8 10.1 9.7 10.4 11.0 10.9 10.6 10.5 10.2 10.4 10.3 10.2 9.9 9.7 9.4 9.4 9.1
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 WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 75 80 90 80 60 40 40 45 35 30 25 15 10 15 20 25 20
TEMPERATURE 53 55 54 54 50 49 48 48 52 58 61 61 54 50 48 49 55
MAX/MIN TEMP 57 47 63 48
WIND CHILL
WIND DIR S SE SE SE E E E N NE E E E NE NE N N N
WIND (MPH) 2 4 5 3 2 2 1 3 3 6 6 6 5 5 6 8 6
WIND GUST (MPH)
PRECIP PROB (%) 10 20 10 10 10 10 5 5 5 0 0 0 0 0 0 0 0
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 9.4 10.6 10.7 11.3 11.4 11.3 11.0 10.8 10.5 10.7 10.6 10.4 10.0 9.9 9.6 9.5 9.1
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 WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 80 80 90 80 60 40 40 45 40 30 25 20 10 15 20 25 20
TEMPERATURE 51 50 51 50 48 48 46 47 49 54 58 57 52 49 48 48 52
MAX/MIN TEMP 52 46 59 48
WIND CHILL
WIND DIR S SE SE SE E E E NE E E E NE NE NE NE N N
WIND (MPH) 5 5 8 6 5 5 5 6 8 6 6 8 10 9 11 12 10
WIND GUST (MPH)
PRECIP PROB (%) 10 20 20 10 10 10 5 5 5 0 0 0 0 0 0 0 0
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 9.5 10.8 10.9 11.4 11.5 11.3 11.0 10.8 10.6 10.7 10.6 10.4 10.0 9.9 9.5 9.5 9.1
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 WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 80 85 90 75 55 35 35 45 35 30 25 20 10 15 15 25 25
TEMPERATURE 52 51 53 52 50 50 48 49 51 55 59 61 55 51 49 48 52
MAX/MIN TEMP 55 46 64 47
WIND CHILL
WIND DIR SE SE SE SE E SE SE NE E E NE NE NE E NE NE NE
WIND (MPH) 6 6 9 8 5 6 5 4 5 5 5 6 8 9 9 9 9
WIND GUST (MPH)
PRECIP PROB (%) 10 20 20 20 10 10 5 5 5 0 0 0 0 0 0 0 0
PRECIP TYPE R R R
6 HOUR QPF 0.00 0.04 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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 10.0 10.7 10.9 11.2 11.3 11.1 10.8 10.7 10.6 10.6 10.5 10.3 9.9 9.8 9.4 9.4 9.1
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 WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 70 75 85 80 55 40 35 40 35 35 20 15 10 20 15 20 25
TEMPERATURE 55 59 60 59 54 53 51 51 54 61 66 64 58 54 53 52 56
MAX/MIN TEMP 61 51 67 52
WIND CHILL
WIND DIR S SE S S SE S SW N NE E E E NE N N N N
WIND (MPH) 2 4 6 4 2 2 2 3 2 5 5 6 2 4 4 5 5
WIND GUST (MPH)
PRECIP PROB (%) 5 10 10 10 10 5 5 5 0 0 0 0 0 0 0 0 0
PRECIP TYPE
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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 9.4 9.7 9.3 9.8 10.4 10.6 10.2 10.2 10.0 10.2 10.2 10.2 9.8 9.7 9.4 9.3 9.0
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 WEDNESDAY 08/20/25 THURSDAY 08/21/25
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 BK SC SC SC SC SC FW FW FW FW FW FW FW
CLOUD COVER (%) 85 85 90 75 55 35 40 45 40 30 25 20 10 15 15 25 25
TEMPERATURE 51 50 50 50 48 48 47 48 50 54 58 58 53 49 47 47 50
MAX/MIN TEMP 53 47 59 47
WIND CHILL
WIND DIR S SE SE SE E SE SE NE E E NE NE NE E NE NE N
WIND (MPH) 6 6 8 6 5 8 6 4 5 4 4 6 6 6 8 8 6
WIND GUST (MPH)
PRECIP PROB (%) 20 20 20 20 10 10 5 5 5 0 0 0 0 0 0 0 0
PRECIP TYPE R R R R
6 HOUR QPF 0.01 0.06 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
12 HOUR SNOW 0.0 0.0 0.0 0.0
SNOW LEVEL (KFT) 10.4 11.2 11.2 11.5 11.5 11.4 11.2 11.0 10.7 10.8 10.6 10.4 10.0 9.8 9.5 9.4 9.1
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.