335  
FNUS75 KBOU 191907  
FWSBOU  
 
SPOT FORECAST FOR SUMMIT N - MT.POWELL UNIT 17 PILES...USFS  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
1207 PM MST SUN NOV 19 2017  
 
FORECAST IS BASED ON IGNITION TIME OF 1200 MST ON NOVEMBER 19.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
INCREASING NORTHWESTERLY FLOW ALOFT IS EXPECTED OVER  
THE BURN AREA LATER THIS AFTERNOON, TONIGHT AND THROUGH MONDAY.  
SOME OF THIS WIND WILL MAKE IT TO THE SURFACE. HIGH AND MIDDLE  
CLOUDS WILL BE SCATTERED AROUND WITH NO PRECIPITATION EXPECTED.  
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 41.  
MIN HUMIDITY........19%.  
WIND (20 FT)........SOUTH WINDS 5-6 MPH UNTIL 1400, THEN WEST 6-7  
MPH.  
MIXING HEIGHT.......3700-4700 FT AGL.  
TRANSPORT WINDS.....WEST 15-20 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1300, THEN GOOD.  
HAINES INDEX........3 VERY LOW.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
LAL.................1.  
MIN TEMPERATURE.....AROUND 19.  
MAX HUMIDITY........39%.  
WIND (20 FT)........SOUTHWEST WINDS 6-7 MPH WITH GUSTS TO 15 MPH.  
MIXING HEIGHT.......1100-2100 FT AGL UNTIL 0200, THEN BELOW 1000 FT  
AGL UNTIL 0300, THEN 1000 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-20 MPH.  
SMOKE DISPERSAL.....FAIR UNTIL 1800. POOR AFTER 0100.  
HAINES INDEX........3 VERY LOW.  
   
MONDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY UNTIL 0700, THEN PARTLY  
CLOUDY(40-50%) UNTIL 1300, THEN MOSTLY CLOUDY.  
CWR.................0 PERCENT.  
LAL.................1.  
MAX TEMPERATURE.....AROUND 42.  
MIN HUMIDITY........25%.  
WIND (20 FT)........WEST WINDS 5-11 MPH. GUSTS UP TO 20 MPH LATE IN  
THE AFTERNOON.  
MIXING HEIGHT.......2700-3700 FT AGL.  
TRANSPORT WINDS.....SOUTHWEST 10-20 MPH UNTIL 1100, THEN WEST 20-30  
MPH.  
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN FAIR UNTIL 1200, THEN  
GOOD UNTIL 1400, THEN VERY GOOD UNTIL 1500,  
THEN GOOD.  
HAINES INDEX........4 LOW.  
   
FORECAST DAYS 3 THROUGH 5
 
   
TUESDAY
 
 
MOSTLY CLOUDY. CHANCE OF SNOW. LOWS IN THE MID 20S. HIGHS IN THE  
LOWER 40S. WEST WINDS 8-12 MPH.    
WEDNESDAY
 
 
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST  
WINDS AROUND 5 MPH.    
THANKSGIVING DAY
 
 
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S.  
VARIABLE WINDS LESS THAN 10 MPH.  
 
FIRE WEATHER TABLE FOR SUMMIT N - MT.POWELL UNIT 17 PILES.  
 
+++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE  
FORECAST DATABASE. VALUES IN THE TABLE MAY VARY SLIGHTLY FROM  
INFORMATION IN THE NARRATIVE FORECAST. FEEDBACK WELCOME. +++  
 
FORECAST SC PP WR AT RH 20-FT G H L 15KFT MIXG TRANS VENTL AJTV  
VALID AT % % % F % WIND S I A WIND HGT WIND RATE RATNG  
MPH T L MPH AGL MPH KT-FT  
 
11/19-12 18 0 0 34 32 S 6 6 3 1 3763 W 16 51748 F  
11/19-13 20 0 0 37 25 SW 6 6 3 1 4355 W 18 71628 G  
11/19-14 21 0 0 41 19 W 7 7 3 1 4948 W 22 94700 G  
11/19-15 23 0 0 40 19 W 7 7 3 1 4225 W 22 79998 G  
11/19-16 26 0 0 38 20 W 8 13 3 1 3502 W 22 65592 G  
11/19-17 28 0 0 36 21 WSW 8 13 3 1 2779 W 22 51484 F  
11/19-18 26 0 0 33 24 WSW 8 13 3 1 2335 WSW 18 38246 P  
11/19-19 24 0 0 30 28 WSW 8 13 2 1 1891 WSW 16 26914 P  
11/19-20 22 0 0 27 32 WSW 8 13 2 1 1447 WSW 14 17488 P  
11/19-21 19 0 0 25 34 WSW 8 8 2 1 1323 WSW 13 15049 P  
11/19-22 17 0 0 24 33 SW 7 7 2 1 1200 WSW 13 12787 P  
11/19-23 15 0 0 23 33 SW 7 7 2 1 1077 WSW 12 10702 P  
11/20-00 15 0 0 22 32 SW 7 7 2 1 1025 WSW 12 9912 P  
11/20-01 15 0 0 22 30 SW 8 8 3 1 974 WSW 10 9149 P  
11/20-02 15 0 0 21 31 WSW 8 13 3 1 922 WSW 10 8414 P  
11/20-03 15 0 0 20 33 WSW 8 13 3 1 961 WSW 10 9077 P  
11/20-04 15 0 0 19 36 WSW 8 13 3 1 999 WSW 12 9764 P  
11/20-05 15 0 0 19 39 WSW 8 13 3 1 1037 WSW 12 10477 P  
11/20-06 20 0 0 20 39 WSW 8 8 3 1 1053 WSW 12 10599 P  
11/20-07 30 0 0 22 37 WSW 7 7 3 1 1068 WSW 12 10720 P  
11/20-08 35 0 0 25 35 WSW 7 7 3 1 1084 WSW 12 10726 P  
11/20-09 40 0 0 29 32 WSW 7 7 3 1 1749 WSW 15 22437 P  
11/20-10 50 0 0 33 30 WSW 7 7 4 1 2413 W 18 38055 P  
11/20-11 55 3 1 37 28 W 8 13 4 1 3077 W 22 57578 F  
11/20-12 58 3 1 40 26 W 9 15 4 1 3389 W 24 71214 G  
11/20-13 64 3 1 42 25 W 10 17 3 1 3701 W 26 86284 G  
11/20-14 67 3 1 42 25 W 12 18 3 1 4012 W 30102790 V  
11/20-15 72 3 1 40 28 W 12 18 3 1 3636 W 28 87333 G  
11/20-16 82 3 1 37 33 WSW 12 18 3 1 3260 W 25 73080 G  
11/20-17 87 29 8 33 39 WSW 12 15 3 1 2883 W 24 60031 G  
11/20-18 87 29 8 31 47 WSW 12 15 3 1 2789 WSW 23 55645 F  
11/20-19 88 29 8 29 55 WSW 12 15 2 1 2695 WSW 22 51422 F  
11/20-20 88 29 8 28 60 WSW 13 17 2 1 2601 WSW 21 47364 F  
11/20-21 86 29 8 27 63 WSW 12 15 2 1 2517 WSW 21 46209 F  
11/20-22 82 29 8 28 60 WSW 12 15 2 1 2433 W 22 45028 F  
11/20-23 80 29 8 28 60 W 12 15 2 1 2349 W 22 43822 F  
11/21-00 81 29 8 27 65 W 12 15 2 1 2200 W 20 36406 P  
11/21-01 82 29 8 27 65 W 12 15 2 1 2051 W 16 29619 P  
11/21-02 82 29 8 26 71 W 12 15 2 1 1902 W 14 23459 P  
11/21-03 79 29 8 26 71 W 12 15 2 1 1860 W 14 22114 P  
11/21-04 73 29 8 26 74 W 12 15 2 1 1819 W 13 20807 P  
11/21-05 70 21 4 26 74 W 12 15 2 1 1778 W 13 19536 P  
11/21-06 72 21 4 26 78 W 6 6 2 1 1922 W 13 21520 P  
11/21-07 75 21 4 27 78 W 6 6 2 1 2066 W 13 23563 P  
11/21-08 76 21 4 29 75 W 5 5 2 1 2210 WNW 14 25666 P  
11/21-09 73 21 4 32 69 W 5 5 2 1 2681 WNW 14 32091 P  
11/21-10 66 21 4 35 64 W 6 6 2 1 3151 WNW 14 38853 P  
11/21-11 63 14 3 38 57 W 6 6 2 1 3621 WNW 15 45953 F  
11/21-12 64 14 3 40 52 W 6 6 2 1 3740 WNW 15 47655 F  
11/21-13 66 14 3 42 46 W 6 6 2 1 3858 WNW 15 49371 F  
11/21-14 67 14 3 42 46 WNW 6 6 2 1 3977 WNW 15 51099 F  
11/21-15 68 14 3 41 48 W 6 6 2 1 3621 WNW 13 40673 F  
11/21-16 69 14 3 40 50 W 6 6 2 1 3266 W 12 31398 P  
11/21-17 70 10 2 38 54 W 6 6 2 1 2911 W 9 23272 P  
11/21-18 71 10 2 36 59 W 6 6 2 1 2686 W 9 21419 P  
11/21-19 73 10 2 35 61 W 5 5 2 1 2462 W 9 19575 P  
11/21-20 74 10 2 33 66 WSW 5 5 2 1 2237 W 9 17742 P  
11/21-21 74 10 2 32 69 WSW 5 5 2 1 2082 W 9 16218 P  
11/21-22 73 10 2 31 75 WSW 3 3 2 1 1928 W 9 14739 P  
11/21-23 72 11 2 30 78 WSW 3 3 2 1 1773 WSW 9 13304 P  
11/22-00 73 11 2 30 78 WSW 3 3 2 1 1744 WSW 9 14084 P  
11/22-01 76 11 2 29 85 WSW 3 3 2 1 1715 W 10 14829 P  
11/22-02 77 11 2 29 85 WSW 3 3 2 1 1685 W 10 15541 P  
11/22-03 76 11 2 29 85 WSW 3 3 2 1 1856 W 12 18731 P  
11/22-04 73 11 2 29 81 W 5 5 2 1 2027 W 13 22218 P  
11/22-05 72 3 1 30 78 W 5 5 2 1 2197 W 14  
11/22-06 72 3 1 32 72 W 5 5 1  
11/22-07 71 3 1 34 66 W 5 5 1  
11/22-08 70 3 1 37 61 W 5 5 1  
11/22-09 69 3 1 40 55 W 5 5 1  
11/22-10 68 3 1 42 53 W 5 5 1  
11/22-11 67 3 1 44 49 W 5 5 1  
11/22-12 66 3 1 45 47 W 5 5 1  
11/22-13 63 3 1 45 47 W 5 5 1  
11/22-14 60 3 1 45 45 W 5 5 1  
11/22-15 57 3 1 44 47 W 3 3 1  
11/22-16 54 3 1 43 47 W 3 3 1  
11/22-17 53 2 1 42 48 W 3 3 1  
 
KEY:  
 
FORECAST - MONTH/DAY-HOUR OF FORECAST  
VALID AT - /24-HOUR CLOCK LOCAL TIME/  
SC - SKY COVER /PERCENT/  
PP - PROBABILITY OF PRECIPITATION 0.01 INCH /PERCENT/  
WR - PROBABILITY OF WETTING RAIN 0.10 INCH /PERCENT/  
AT - TEMPERATURE /DEGREES F/  
RH - RELATIVE HUMIDITY /PERCENT/  
20-FT WIND - 20-FOOT WIND /MPH/  
GST - 20-FOOT WIND GUST /MPH/  
HI - HAINES INDEX  
LAL - LIGHTNING ACTIVITY LEVEL  
15KFT WIND - 15000 FEET ABOVE MEAN SEA LEVEL FREE-AIR WINDS /MPH/  
MIXG HGT - MIXING HEIGHT /FEET ABOVE GROUND LEVEL/  
TRANS WIND - TRANSPORT WINDS /MPH/  
VENTL RATE - VENTILATION RATE /KNOT-FEET/  
AJTV RATNG - SMOKE DISPERSION ADJECTIVE RATING  
P - POOR F - FAIR G - GOOD  
V - VERY GOOD E - EXCELLENT  
 

 
FORECASTER...RJK  
REQUESTED BY...LISA LONCAR  
TYPE OF REQUEST...PRESCRIBED  
.TAG 1718998.0/BOU  
 
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