842  
FNUS75 KBOU 091601  
FWSBOU  
 
SPOT FORECAST FOR ELK COMBINED FLIGHTS...USFS  
NATIONAL WEATHER SERVICE DENVER CO  
830 AM MST MON NOV 9 2009  
 
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
CLOUD COVER OVER THE REGION THIS MORNING WILL DECREASE  
BY AFTERNOON AS A WEAK UPPER LEVEL DISTURBANCE PASSES TO THE  
NORTHEAST. A RIDGE OF HIGH PRESSURE WILL MOVE OVER THE STATE  
TONIGHT INTO TUESDAY.  
   
..THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS
 
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....33-36.  
MIN HUMIDITY........50%.  
20-FOOT WINDS.......WEST/SOUTHWEST 12-22 MPH.  
14K-FT FREE AIR WINDS.....SOUTHWEST 25-35 MPH.  
   
TONIGHT
 
 
SKY/WEATHER.........PARTLY CLOUDY(30-40%)  
MIN TEMPERATURE.....21-24.  
MAX HUMIDITY........55-60%.  
20-FOOT WINDS.......SOUTHWEST 12-22 MPH.  
14-FT FREE AIR WINDS.....SOUTHWEST 15-25 MPH.  
 
   
TUESDAY
 
 
SKY/WEATHER.........PARTLY CLOUDY(50-60%).  
MAX TEMPERATURE.....35-37.  
MIN HUMIDITY........28-32%.  
20-FOOT WINDS.......SOUTHWEST 12-18 MPH.  
14K-FT FREE AIR WINDS.....25-35 MPH.  
 
   
FORECAST DAYS 3 THROUGH 5
 
   
VETERANS DAY
 
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE  
UPPER 30S. BREEZY. WEST WINDS AROUND 25 MPH WITH GUSTS TO AROUND  
45 MPH.    
THURSDAY
 
MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN  
THE MID 20S. HIGHS AROUND 40. WEST WINDS 25 TO 35 MPH WITH GUSTS TO  
45 MPH.    
FRIDAY
 
MOSTLY CLOUDY. CHANCE OF SNOW. COLDER. LOWS AROUND 18.  
HIGHS IN THE UPPER 20S. TYPICAL SLOPE/VALLEY WINDS LESS THAN  
10 MPH.  
 
EXPERIMENTAL FIRE WEATHER TABLE FOR ELK COMBINED FLIGHTS.  
 
+++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE  
DIGITAL DATABASE. VALUES IN THE TABLE MAY NOT AGREE WITH  
INFORMATION IN THE NARRATIVE FORECAST. INFORMATION CONTAINED  
IN THIS TABLE SHOULD NOT BE CONSIDERED AN OFFICIAL FORECAST.  
PLEASE PROVIDE FEEDBACK IF THE INFORMATION IN THIS TABLE HAS  
BEEN REPRESENTATIVE AND/OR USEFUL. +++  
 
FORECAST SC PP TF RH 20FT G H L 10K MIXG TRAN VENTL AJTV  
VALID AT % % F % WIND S I A WIND HGT WIND RATE RATNG  
MPH T L MPH AGL MPH KT-FT  
 
11/09-08 71 10 26 69 W 6 6 4 1 W33 1176 SW 6 5926 P  
11/09-09 71 10 28 62 W 7 1 3277 SW 10 47747 F  
11/09-10 71 10 30 57 W 8 1 5378 W 15 89567 G  
11/09-11 21 0 31 54 W 9 9 4 1 W32 7479 W 21 131388 V  
11/09-12 21 0 32 53 W 10 1 7769 W 21 136353 V  
11/09-13 21 0 32 53 W 10 1 8058 W 21 141319 V  
11/09-14 21 0 33 53 W 10 10 4 1 W38 8347 W 21 146285 V  
11/09-15 21 0 32 53 W 10 1 6917 W 17 111449 V  
11/09-16 21 0 31 55 W 9 1 5487 W 15 76613 G  
11/09-17 57 5 30 50 W 8 8 4 1 W39 4058 W 12 41777 F  
11/09-18 57 5 27 54 W 8 1 2905 W 10 29170 P  
11/09-19 57 5 26 57 W 8 1 1752 W 9 16563 P  
11/09-20 17 5 25 58 SW 8 8 3 1 W38 600 SW 8 3956 P  
11/09-21 17 5 25 59 SW 10 1 496 SW 9 3666 P  
11/09-22 17 5 24 60 SW 13 1 392 SW 10 3376 P  
11/09-23 12 5 24 60 SW 15 15 3 1 W30 289 SW 13 3086 P  
11/10-00 12 5 23 60 SW 15 1 281 SW 13 3075 P  
11/10-01 12 5 23 60 SW 15 1 274 SW 13 3065 P  
11/10-02 10 5 23 60 SW 15 15 4 1 W38 266 SW 13 3054 P  
11/10-03 10 5 22 60 SW 16 1 252 SW 12 2640 P  
11/10-04 10 5 22 59 SW 17 1 237 SW 10 2225 P  
11/10-05 35 0 22 59 W 12 12 3 1 W38 222 SW 9 1810 P  
11/10-06 35 0 22 58 W 12 1 243 SW 10 2195 P  
11/10-07 35 0 23 55 SW 13 1 263 SW 12 2579 P  
11/10-08 35 0 25 48 SW 13 13 3 1 W40 283 SW 12 2963 P  
11/10-09 35 0 29 41 SW 14 1 459 SW 13 5465 P  
11/10-10 35 0 32 36 W 15 1 634 SW 14 7966 P  
11/10-11 35 0 33 34 W 15 24 4 1 W51 810 SW 15 10468 P  
11/10-12 35 0 34 33 W 15 1 751 SW 15 9549 P  
11/10-13 35 0 34 32 SW 14 1 693 SW 14 8631 P  
11/10-14 35 0 35 32 SW 14 22 4 1 W54 635 SW 14 7713 P  
11/10-15 35 0 35 32 SW 14 1 518 SW 14 6312 P  
11/10-16 35 0 34 34 SW 15 1 402 SW 14 4912 P  
11/10-17 60 0 32 36 SW 16 25 4 1 W53 285 SW 14 3512 P  
11/10-18 60 0 30 39 SW 16 1 262 SW 15 3285 P  
11/10-19 60 0 28 41 W 17 1 240 SW 15 3059 P  
11/10-20 60 0 27 41 W 17 28 4 1 W47 217 SW 15 2832 P  
11/10-21 60 0 27 42 W 18 1 221 SW 16 3084 P  
11/10-22 60 0 26 43 SW 20 1 224 SW 17 3335 P  
11/10-23 60 0 26 45 SW 21 33 4 1 W52 228 SW 18 3587 P  
11/11-00 60 0 25 47 W 22 1 228 SW 20 3841 P  
11/11-01 60 0 25 49 W 24 1 227 W 21 4095 P  
11/11-02 60 0 25 52 W 25 40 3 1 W52 227 W 22 4350 P  
11/11-03 60 0 25 55 W 25 1 216 W 22 4104 P  
11/11-04 60 0 25 58 W 25 1 204 W 22 3858 P  
11/11-05 60 3 25 62 W 25 40 3 1 W45 193 W 22 3612 P  
11/11-06 60 3 25 67 W 25 1 201 W 21 3666 P  
11/11-07 60 3 25 72 W 24 1 209 W 21 3720 P  
11/11-08 60 3 28 69 W 24 39 3 1 W52 217 W 20 3774 P  
11/11-09 60 3 31 64 W 24 1 529 W 22 10696 P  
11/11-10 60 3 35 60 W 23 1 841 W 23 17618 P  
11/11-11 60 3 36 58 W 23 37 3 1 W52 1154 W 24 24540 P  
11/11-12 60 3 38 58 W 23 1 1537 W 25 34881 P  
11/11-13 60 3 38 57 W 23 1 1921 W 26 45222 F  
11/11-14 60 3 39 56 W 23 37 3 1 W60 2304 W 28 55563 F  
11/11-15 60 3 38 56 W 23 1 1725 W 26 41048 F  
11/11-16 60 3 37 57 W 23 1 1147 W 25 26534 P  
11/11-17 60 3 34 60 W 24 39 3 1 W53 568 W 24 12019 P  
11/11-18 70 3 31 64 W 25 1 469 W 24 10000 P  
11/11-19 70 3 29 65 W 26 1 371 SW 25 7980 P  
11/11-20 70 3 28 63 SW 28 44 3 1 W53 273 SW 25 5961 P  
11/11-21 70 3 27 63 SW 29 1 272 SW 25 6027 P  
11/11-22 70 3 26 61 SW 29 1 272 SW 25 6092 P  
11/11-23 70 3 26 61 SW 28 44 3 1 W63 271 SW 26 6158 P  
11/12-00 70 3 26 59 SW 25 1 266 SW 24 5497 P  
11/12-01 70 3 26 59 SW 23 1 260 SW 22 4836 P  
11/12-02 70 3 26 58 SW 21 33 3 1 W76 254 SW 18 4176 P  
11/12-03 70 3 26 59 SW 21 1 263 SW 21 4747 P  
11/12-04 70 3 26 59 SW 23 1 271 SW 23 5319 P  
11/12-05 70 3 26 59 SW 25 40 3 1 W76 280 SW 24 5891 P  
 
KEY:  
 
FORECAST - MONTH/DAY-HOUR OF FORECAST /24-HOUR CLOCK LOCAL TIME/  
VALID AT  
SC - SKY COVER /PERCENT/  
PP - PROBABILITY OF PRECIPITATION /PERCENT/  
TF - TEMPERATURE /DEGREES F/  
RH - RELATIVE HUMIDITY /PERCENT/  
20FT WIND - 20-FOOT WIND /MPH/  
GST - 20-FOOT WIND GUST /MPH/  
HI - HAINES INDEX  
LAL - LIGHTNING ACTIVITY LEVEL  
10K WIND - 10000 FEET ABOVE GROUND LEVEL FREE-AIR WINDS /MPH/  
MIXG HGT - MIXING HEIGHT /FEET ABOVE GROUND LEVEL/  
TRAN 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...WFO BOULDER  
REQUESTED BY...CRAIG BROUWER  
REASON FOR REQUEST...SAR  
.TAG 20091109.ELKCO.01/BOU  
 
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