FNUS75 KBOU 171220 FWSBOU SPOT FORECAST FOR EVERGREEN 6B...USFS NATIONAL WEATHER SERVICE DENVER CO 520 AM MST THU DEC 17 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WEAK UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE AREA TODAY WITH CONSIDERABLE AMOUNTS OF CLOUDINESS BUT ONLY A SLIGHT CHANCE FOR SNOW. GOOD MIXING AND MODERATE NORTHWEST FLOW ALOFT WILL RESULT IN EXCELLENT DISPERSION BY MID AFTERNOON. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1700...THEN PARTLY CLOUDY(50-60%). SLIGHT CHANCE OF VERY LIGHT SNOW AFTER 1700. MAX TEMPERATURE.....44. MIN HUMIDITY........22%. 20-FOOT WINDS.......NORTHWEST 7-15 MPH. GUSTS UP TO 22 MPH. TRANSPORT WINDS.....NORTHWEST 21-32 MPH. MIXING HEIGHT.......600-1600 FT AGL UNTIL 1000...THEN 4200-5200 FT AGL UNTIL 1200...THEN 7400-8400 FT AGL UNTIL 1700...THEN 5600 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN GOOD UNTIL 1100...THEN VERY GOOD UNTIL 1200...THEN EXCELLENT UNTIL 1700...THEN VERY GOOD. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(50-60%). SLIGHT CHANCE OF VERY LIGHT SNOW UNTIL 0500. MIN TEMPERATURE.....18. MAX HUMIDITY........60%. 20-FOOT WINDS.......NORTHWEST 6-11 MPH. GUSTS TO 20 MPH. TRANSPORT WINDS.....NORTHWEST 17-28 MPH. MIXING HEIGHT.......3200-4200 FT AGL UNTIL 2000...THEN 600-1600 FT AGL. SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2000. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%). MAX TEMPERATURE.....34. MIN HUMIDITY........32%. 20-FOOT WINDS.......NORTHWEST 11-17 MPH. TRANSPORT WINDS.....NORTHWEST 16-20 MPH. MIXING HEIGHT.......1000-2000 FT AGL UNTIL 1100...THEN 3200-4200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1100...THEN GOOD UNTIL 1600...THEN FAIR UNTIL 1700...THEN POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...PARTLY CLOUDY. LOWS AROUND 16. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 13 MPH WITH GUSTS TO AROUND 25 MPH. .SUNDAY...PARTLY CLOUDY. LOWS AROUND 17. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER 0600 UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS AROUND 17. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 14 MPH WITH GUSTS TO AROUND 25 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR EVERGREEN 6B. +++ 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 12/17-05 75 0 27 56 W 20 31 3 1 NW21 231 W 23 4659 P 12/17-06 75 0 26 57 W 18 1 268 W 23 5205 P 12/17-07 75 0 25 58 W 17 1 305 W 22 5751 P 12/17-08 75 0 27 54 W 17 28 3 1 NW22 342 W 21 6296 P 12/17-09 75 0 31 44 W 18 1 2078 W 23 49699 F 12/17-10 75 0 35 37 W 20 1 3814 NW 26 93101 G 12/17-11 75 0 39 31 W 20 31 3 1 NW20 5550 NW 29 136504 V 12/17-12 75 0 41 29 NW 18 1 6831 NW 29 174997 E 12/17-13 75 0 42 28 NW 16 1 8112 NW 30 213490 E 12/17-14 75 0 42 29 NW 15 24 3 1 NW29 9392 NW 31 251983 E 12/17-15 75 0 42 30 NW 15 1 8127 NW 31 217043 E 12/17-16 75 0 41 32 W 15 1 6861 NW 30 182102 E 12/17-17 52 10 35 41 W 15 24 2 1 NW41 5596 NW 30 147161 V 12/17-18 52 10 33 46 W 16 1 4292 NW 29 111518 V 12/17-19 52 10 31 50 W 16 1 2987 NW 29 75875 G 12/17-20 52 10 29 52 W 17 28 2 1 N47 1683 NW 28 40232 F 12/17-21 52 10 29 53 W 17 1 1419 NW 26 33313 P 12/17-22 52 10 28 53 W 16 1 1155 NW 26 26393 P 12/17-23 58 10 27 53 W 16 25 2 1 NW49 891 NW 25 19474 P 12/18-00 58 10 26 55 W 16 1 801 NW 24 16658 P 12/18-01 58 10 24 57 W 15 1 710 NW 22 13841 P 12/18-02 58 10 23 58 W 15 24 2 1 NW52 620 NW 21 11025 P 12/18-03 58 10 22 59 W 15 1 533 W 18 8955 P 12/18-04 58 10 21 60 W 14 1 445 W 17 6885 P 12/18-05 56 6 21 60 W 14 22 2 1 NW48 357 W 15 4815 P 12/18-06 56 6 20 54 W 14 1 346 W 15 4644 P 12/18-07 56 6 19 53 W 15 1 353 W 15 4754 P 12/18-08 56 6 20 51 W 14 22 2 1 NW43 359 W 16 4864 P 12/18-09 56 6 23 47 W 12 1 1408 NW 17 23389 P 12/18-10 56 6 28 40 W 9 1 2456 NW 18 41914 F 12/18-11 48 6 31 36 NW 7 7 2 1 NW38 3504 NW 20 60438 G 12/18-12 48 6 33 33 NW 7 1 4004 NW 20 68915 G 12/18-13 48 6 33 32 NW 7 1 4503 NW 20 77392 G 12/18-14 48 6 34 34 NW 7 7 2 1 NW40 5003 NW 20 85868 G 12/18-15 48 6 32 37 NW 6 1 4225 NW 18 69846 G 12/18-16 48 6 30 42 NW 6 1 3446 NW 17 53824 F 12/18-17 32 1 28 48 W 6 6 2 1 N38 2668 NW 16 37802 P 12/18-18 32 1 27 49 W 7 1 2007 NW 15 27587 P 12/18-19 32 1 25 52 W 9 1 1347 NW 14 17372 P 12/18-20 32 1 23 55 W 12 12 2 1 N28 687 NW 12 7156 P 12/18-21 32 1 22 55 W 12 1 542 NW 12 5460 P 12/18-22 32 1 21 55 W 12 1 396 NW 10 3764 P 12/18-23 33 1 20 54 W 12 12 2 1 N33 251 W 9 2067 P 12/19-00 33 1 20 55 W 13 1 234 W 10 2065 P 12/19-01 33 1 19 56 W 13 1 216 W 12 2062 P 12/19-02 33 1 19 56 W 14 22 2 1 N30 199 W 12 2059 P 12/19-03 33 1 19 57 W 14 1 184 W 12 1847 P 12/19-04 33 1 18 57 W 13 1 168 W 12 1636 P 12/19-05 37 0 18 56 W 13 13 2 1 NW33 153 W 10 1425 P 12/19-06 37 0 18 55 W 13 1 167 W 12 1692 P 12/19-07 37 0 18 54 W 14 1 181 W 13 1958 P 12/19-08 37 0 20 50 W 14 22 2 1 N35 195 W 13 2225 P 12/19-09 37 0 23 44 W 13 1 916 W 15 14606 P 12/19-10 37 0 28 36 W 12 1 1636 NW 17 26987 P 12/19-11 37 0 33 30 W 10 10 2 1 NW35 2356 NW 20 39369 P 12/19-12 37 0 35 28 W 10 1 3029 NW 20 50043 F 12/19-13 37 0 37 26 W 10 1 3701 NW 18 60718 G 12/19-14 37 0 37 27 NW 10 10 2 1 N36 4374 NW 18 71392 G 12/19-15 37 0 36 29 W 10 1 3234 NW 17 51941 F 12/19-16 37 0 33 33 W 10 1 2094 NW 17 32490 P 12/19-17 56 5 30 37 W 10 10 4 1 NW28 954 NW 16 13039 P 12/19-18 56 5 29 39 W 12 1 705 NW 15 9508 P 12/19-19 56 5 26 43 W 14 1 456 W 14 5976 P 12/19-20 56 5 24 45 W 15 24 4 1 NW29 206 W 14 2445 P 12/19-21 56 5 23 47 W 16 1 185 W 14 2271 P 12/19-22 56 5 22 47 W 16 1 163 W 15 2098 P 12/19-23 56 5 22 48 W 16 25 4 1 NW29 142 W 16 1924 P 12/20-00 56 5 21 47 W 16 1 137 W 17 1985 P 12/20-01 56 5 21 46 W 17 1 131 W 18 2045 P 12/20-02 56 5 20 46 W 17 28 3 1 NW26 126 W 20 2106 P 12/20-03 56 5 20 45 W 21 1 126 W 20 2205 P 12/20-04 56 5 19 45 W 22 1 127 W 21 2304 P 12/20-05 56 5 19 44 W 20 31 3 1 NW32 127 W 22 2403 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/ENTREKIN REQUESTED BY...BILL ALAKAI REASON FOR REQUEST...PRESCRIBED .TAG 20091217.EVERG.01/BOU