FNUS75 KBOU 172020 FWSBOU SPOT FORECAST FOR BOBCAT RIDGE...USFS NATIONAL WEATHER SERVICE DENVER CO 120 PM MST TUE FEB 17 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... GUSTY WESTERLY WINDS WILL CONTINUE THROUGH WEDNESDAY. WEST- SOUTHWEST WINDS WILL SLOWLY TURN WESTERLY LATE THIS AFTERNOON. WINDS WILL CONTINUE TO SLOWLY SHIFT AND BE NORTHWEST BY WEDNESDAY MORNING. THERE WILL BE A SLIGHT DROP OFF IN WINDS AFTER SUNSET BUT THE STRONG WINDS WILL PERSIST THROUGH MUCH OF THE NIGHT. THE RELATIVE HUMIDITY WILL SLOWLY INCREASE THIS EVENING AND TOP OUT AROUND 60 PERCENT WEDNESDAY MORNING. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....55-58. MIN HUMIDITY........18-24%. 20-FOOT WINDS.......WINDY. WEST 15-30 MPH WITH GUSTS TO AROUND 50 MPH. TRANSPORT WINDS.....WEST 24-32 MPH UNTIL 1200...THEN 40-60 MPH. MIXING HEIGHT.......2000-3000 FT AGL UNTIL 1100...THEN 6400-7400 FT AGL UNTIL 1300...THEN 10000-11000 FT AGL UNTIL 1600...THEN 5800-6800 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN GOOD UNTIL 1100...THEN EXCELLENT. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY(50-60%). SLIGHT CHANCE OF SNOW AFTER 0500. MIN TEMPERATURE.....20-25. MAX HUMIDITY........55-65%. 20-FOOT WINDS.......WINDY. WEST 15-30 MPH WITH GUSTS TO AROUND 45 MPH UNTIL 0300...THEN 15-22 MPH WITH GUSTS TO AROUND 35 MPH. TRANSPORT WINDS.....WEST 44-56 MPH UNTIL 2400...THEN 29-40 MPH. MIXING HEIGHT.......3200-4200 FT AGL UNTIL 2000. 200-400 FT AGL AFTER 2300. SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. POOR AFTER 2300. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY... SKY/WEATHER.........PARTLY SUNNY. SLIGHT CHANCE OF SNOW UNTIL 1100...THEN SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS. MAX TEMPERATURE.....40-45. MIN HUMIDITY........26-32%. 20-FOOT WINDS.......BREEZY. NORTHWEST 12-22 MPH GUSTS TO 35 MPH. TRANSPORT WINDS.....NORTHWEST 29-40 MPH. MIXING HEIGHT.......800-1800 FT AGL UNTIL 1000...THEN 4600-5600 FT AGL UNTIL 1300...THEN 7000-8000 FT AGL UNTIL 1700...THEN 5400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN GOOD UNTIL 1000...THEN VERY GOOD UNTIL 1100...THEN EXCELLENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. EXPERIMENTAL FIRE WEATHER TABLE FOR BOBCAT RIDGE. +++ 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 02/17-13 61 0 47 29 W 16 1 9809 W 41 362117 E 02/17-14 61 0 49 26 W 20 46 3 1 NW40 11796 W 44 451335 E 02/17-15 61 0 48 27 W 21 1 9615 W 49 390857 E 02/17-16 61 0 46 29 W 22 1 7433 W 54 330379 E 02/17-17 60 0 42 34 W 22 46 3 1 NW32 5252 W 59 269901 E 02/17-18 60 0 39 38 W 26 1 4271 W 58 216492 E 02/17-19 60 0 36 43 W 31 1 3290 W 56 163084 E 02/17-20 60 0 34 48 W 31 47 4 1 NW23 2309 W 55 109675 V 02/17-21 60 0 31 53 W 31 1 1686 W 51 78563 G 02/17-22 60 0 29 57 W 30 1 1064 W 47 47450 F 02/17-23 60 0 28 59 W 29 44 4 1 NW29 441 W 43 16337 P 02/18-00 60 0 26 63 W 26 1 422 W 39 14626 P 02/18-01 60 0 25 64 W 24 1 402 W 37 12916 P 02/18-02 60 0 24 65 W 22 33 4 1 NW21 382 W 33 11205 P 02/18-03 60 0 24 65 W 21 1 360 W 33 10363 P 02/18-04 60 0 24 66 W 21 1 337 W 32 9521 P 02/18-05 83 10 24 62 W 17 24 4 1 NW12 293 W 28 7017 P 02/18-06 83 10 24 62 W 20 1 396 W 30 10515 P 02/18-07 83 10 25 60 W 21 1 499 W 31 14012 P 02/18-08 83 10 28 53 W 22 31 3 1 NW 7 601 W 33 17510 P 02/18-09 83 10 31 46 W 22 1 2067 W 35 65749 G 02/18-10 83 10 34 40 W 22 1 3533 NW 36 113988 V 02/18-11 55 19 37 35 W 23 32 2 1 NW15 4998 NW 37 162227 E 02/18-12 55 19 40 32 W 22 1 6136 NW 37 193758 E 02/18-13 55 19 41 30 W 22 1 7274 NW 36 225289 E 02/18-14 55 19 42 29 W 21 29 2 1 NW35 8412 NW 36 256820 E 02/18-15 55 19 42 30 W 20 1 7375 NW 36 229120 E 02/18-16 55 19 40 32 W 20 1 6339 NW 37 201420 E 02/18-17 59 2 37 37 NW 18 25 2 1 NW33 5302 NW 38 173719 E 02/18-18 59 2 35 41 NW 17 1 4310 NW 37 140095 V 02/18-19 59 2 32 46 W 16 1 3318 W 37 106470 V 02/18-20 59 2 30 50 W 15 21 2 1 NW28 2326 W 36 72846 G 02/18-21 59 2 28 55 W 15 1 1673 W 33 51380 F 02/18-22 59 2 27 58 W 15 1 1021 W 30 29914 P 02/18-23 47 2 26 60 W 15 21 2 1 NW21 369 W 26 8448 P 02/19-00 47 2 24 62 W 15 1 341 W 25 7508 P 02/19-01 47 2 24 62 W 14 1 313 W 24 6569 P 02/19-02 47 2 23 63 W 14 20 2 1 NW14 286 W 23 5629 P 02/19-03 47 2 23 62 W 14 1 316 W 22 6124 P 02/19-04 47 2 22 60 W 13 1 347 W 22 6619 P 02/19-05 19 1 23 59 W 13 17 2 1 NW15 377 W 22 7114 P 02/19-06 19 1 23 58 W 13 1 632 W 21 10684 P 02/19-07 19 1 25 55 W 12 1 886 W 20 14253 P 02/19-08 19 1 28 48 W 12 12 2 1 NW18 1141 W 18 17823 P 02/19-09 19 1 32 40 W 9 1 2352 W 15 22595 P 02/19-10 19 1 36 34 W 9 1 3564 W 12 27366 P 02/19-11 35 1 40 29 W 9 9 2 1 NW20 4775 W 8 32138 P 02/19-12 35 1 42 26 W 9 1 5816 W 8 40357 F 02/19-13 35 1 44 24 W 10 1 6857 W 8 48576 F 02/19-14 35 1 45 24 W 10 10 2 1 W20 7897 W 8 56795 F 02/19-15 35 1 45 24 W 10 1 6700 W 9 52106 F 02/19-16 35 1 43 26 W 12 1 5503 W 10 47417 F 02/19-17 21 0 40 30 W 9 9 2 1 NW28 4306 W 12 42728 F 02/19-18 21 0 37 34 W 12 1 3337 W 18 40947 F 02/19-19 21 0 34 38 W 13 1 2368 W 24 39166 P 02/19-20 21 0 32 41 W 13 17 2 1 NW32 1399 W 31 37385 P 02/19-21 21 0 29 45 W 12 1 1078 W 30 28515 P 02/19-22 21 0 28 47 W 13 1 757 W 29 19645 P 02/19-23 21 0 26 48 W 10 10 3 1 NW33 437 W 29 10775 P 02/20-00 21 0 25 50 W 10 1 377 W 25 8701 P 02/20-01 21 0 24 51 W 10 1 318 W 23 6628 P 02/20-02 21 0 23 52 W 10 10 3 1 NW44 258 W 21 4554 P 02/20-03 21 0 23 52 W 12 1 258 W 21 4756 P 02/20-04 21 0 23 51 W 13 1 258 W 22 4959 P 02/20-05 27 0 23 50 W 12 12 3 1 NW51 258 W 23 5161 P 02/20-06 27 0 23 50 W 9 1 02/20-07 27 0 25 47 W 9 1 02/20-08 27 0 29 41 W 9 9 1 02/20-09 27 0 34 34 W 10 1 02/20-10 27 0 38 29 W 9 1 02/20-11 27 0 42 25 W 10 10 1 02/20-12 27 0 45 23 W 10 1 02/20-13 27 0 47 21 W 10 1 02/20-14 27 0 48 21 W 9 9 1 02/20-15 27 0 47 21 W 10 1 02/20-16 27 0 46 23 W 9 1 02/20-17 51 5 42 27 W 9 9 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...FORT COLLINS DISPATCH REASON FOR REQUEST...WILDFIRE .TAG 20090217.BOBCA.01/BOU