594  
FWUS45 KGYX 210830  
AVGGYX  
 
AVALANCHE WEATHER GUIDANCE  
NATIONAL WEATHER SERVICE GRAY ME  
430 AM EDT THU OCT 21 2021  
 
   
..PRESIDENTIAL RANGE FORECAST AREA\MOUNT WASHINGTON (6,288 FT)
 
 
DATE THURSDAY 10/21 FRIDAY 10/22  
TIME (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
CLOUD COVER BK OV OV OV OV SC SC OV OV BK OV BK OV OV OV OV OV  
CLOUD COVER (%) 55 80 80 90 70 35 50 90 85 60 75 70 75 80 75 75 75  
TEMPERATURE 38 40 41 43 43 44 43 44 43 38 39 35 31 31 31 30 28  
MAX/MIN TEMP 43 38 41 26  
WIND CHILL 19 13 14 15 15 13  
WIND DIR W W W W SW SW SW SW SW W W W W W W W SW  
WIND (MPH) 36 19 17 18 24 36 41 46 50 54 51 50 48 44 37 31 27  
WIND GUST (MPH)  
PRECIP PROB (%) 5 10 20 40 30 10 10 60 60 50 20 20 30 30 20 20 10  
PRECIP TYPE R R R R R R R S S S S  
12 HOUR QPF 0.06 0.10 0.06 0.05  
12 HOUR SNOW 0.0 0.0 0.1 0.2  
 
   
..FRANCONIA NOTCH/MT. LAFAYETTE (4000 FT)
 
 
DATE THURSDAY 10/21 FRIDAY 10/22  
TIME (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
CLOUD COVER BK BK OV OV BK SC BK OV OV BK OV OV OV OV OV OV OV  
CLOUD COVER (%) 55 65 75 95 70 35 60 90 90 70 85 75 80 90 80 75 75  
TEMPERATURE 45 47 52 53 50 48 47 48 48 50 48 47 41 37 35 34 33  
MAX/MIN TEMP 53 47 50 33  
WIND CHILL  
WIND DIR W W SW SW S S S SW SW SW W W NW NW NW NW NW  
WIND (MPH) 13 9 8 9 12 21 24 26 28 28 25 23 19 16 13 10 8  
WIND GUST (MPH)  
PRECIP PROB (%) 5 10 20 40 30 10 10 60 60 50 20 10 10 20 20 20 10  
PRECIP TYPE R R R R R R R S  
12 HOUR QPF 0.04 0.10 0.04 0.04  
12 HOUR SNOW 0.0 0.0 0.0 0.0  
 
   
..TUCKERMAN AND HUNTINGTON RAVINES (4500FT)
 
 
DATE THURSDAY 10/21 FRIDAY 10/22  
TIME (LT) 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06  
 
CLOUD COVER BK OV OV OV OV SC BK OV OV SC BK BK BK OV OV OV OV  
CLOUD COVER (%) 55 75 70 90 70 40 50 90 85 50 60 60 65 75 70 70 70  
TEMPERATURE 46 49 55 55 48 47 47 47 47 49 52 49 43 40 40 37 36  
MAX/MIN TEMP 55 47 53 34  
WIND CHILL  
WIND DIR NW W W SW S S S SW SW SW W W W NW NW NW NW  
WIND (MPH) 13 10 8 8 11 18 20 23 25 25 23 20 18 16 13 10 9  
WIND GUST (MPH)  
PRECIP PROB (%) 5 10 10 40 30 10 10 60 60 50 20 20 20 20 20 10 10  
PRECIP TYPE R R R R R R R R  
12 HOUR QPF 0.05 0.08 0.03 0.02  
12 HOUR SNOW 0.0 0.0 0.0 0.0  
 

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