453  
FWUS45 KGYX 192031  
AVGGYX  
 
AVALANCHE WEATHER GUIDANCE  
NATIONAL WEATHER SERVICE GRAY ME  
431 PM EDT MON APR 19 2021  
 
   
..PRESIDENTIAL RANGE FORECAST AREA\MOUNT WASHINGTON (6,288 FT)
 
 
DATE TUESDAY 04/20 WEDNESDAY 04/21  
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
 
CLOUD COVER BK SC FW FW FW SC OV BK SC SC SC BK OV OV OV OV OV  
CLOUD COVER (%) 65 35 20 10 20 50 75 65 35 35 45 65 80 85 85 95 95  
TEMPERATURE 32 30 29 28 27 29 32 31 30 31 28 27 28 33 35 38 39  
MIN/MAX TEMP 27 33 26 41  
WIND CHILL 18 16 14 11 13 16 13 11 12 7 6 7 14 17  
WIND DIR W W W W W W W W W W W W SW S S S S  
WIND (MPH) 14 17 21 24 28 34 37 50 55 59 59 59 60 62 62 58 46  
WIND GUST (MPH)  
PRECIP PROB (%) 50 40 20 5 0 5 30 40 30 5 5 20 40 50 80 90 90  
PRECIP TYPE S S S S S S S S R R  
12 HOUR QPF 0.02 0.08 0.09 0.55  
12 HOUR SNOW 0.1 0.3 1.0 2.2  
 
   
..FRANCONIA NOTCH/MT. LAFAYETTE (4000 FT)
 
 
DATE TUESDAY 04/20 WEDNESDAY 04/21  
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
 
CLOUD COVER BK SC FW FW FW BK OV OV SC SC SC BK OV OV OV OV OV  
CLOUD COVER (%) 60 40 15 10 20 60 90 75 35 40 45 65 85 85 85 95 95  
TEMPERATURE 45 39 35 33 33 41 46 45 43 39 35 32 32 34 39 43 43  
MIN/MAX TEMP 33 47 31 46  
WIND CHILL 17 18  
WIND DIR W W W W W SW W W W W W W S S S S SW  
WIND (MPH) 9 8 8 10 11 17 24 31 31 34 34 33 27 24 24 23 18  
WIND GUST (MPH)  
PRECIP PROB (%) 40 40 20 5 0 10 30 30 20 5 5 20 40 50 80 90 90  
PRECIP TYPE R R R R S S S R R R  
12 HOUR QPF 0.01 0.02 0.10 0.51  
12 HOUR SNOW 0.0 0.0 0.8 0.7  
 
   
..TUCKERMAN AND HUNTINGTON RAVINES (4500FT)
 
 
DATE TUESDAY 04/20 WEDNESDAY 04/21  
TIME (LT) 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18  
 
CLOUD COVER BK SC FW FW FW SC OV BK SC SC SC BK OV OV OV OV OV  
CLOUD COVER (%) 60 35 20 10 15 45 70 65 35 35 40 65 80 80 85 95 95  
TEMPERATURE 44 39 38 36 34 41 45 44 44 41 37 34 33 35 39 42 42  
MIN/MAX TEMP 34 46 32 44  
WIND CHILL  
WIND DIR W W W W W W W W W W W W SW S S S S  
WIND (MPH) 8 6 8 9 11 16 20 26 27 31 31 29 26 24 24 23 19  
WIND GUST (MPH)  
PRECIP PROB (%) 50 40 20 5 0 5 30 40 30 5 5 20 40 50 80 90 90  
PRECIP TYPE R R R R S S S R R R  
12 HOUR QPF 0.02 0.05 0.09 0.52  
12 HOUR SNOW 0.0 0.0 0.6 0.6  
 

 
 
--- PRECIP TYPE CODES ---  
 
CODE TYPE  
T THUNDERSTORMS  
R RAIN  
S SNOW  
I SLEET  
Z FREEZING RAIN  
 
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