FNUS75 KBOU 121104 FWSBOU SPOT FORECAST FOR PORTER RANCH 5...USFS NATIONAL WEATHER SERVICE DENVER CO 405 AM MST FRI FEB 12 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...NORTHWEST FLOW WILL BE OVER THE AREA TODAY WITH MID AND HIGH LEVEL CLOUD COVER DEVELOPING BY NOON. WINDS SHOULD INCREASE THROUGH THE MORNING WITH GOOD DISPERSAL DEVELOPING AFTER 0900. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. MAX TEMPERATURE.....37. MIN HUMIDITY........34%. WIND (20 FT)........BREEZY. WEST 18-25 MPH WITH GUSTS TO AROUND 35 MPH. TRANSPORT WINDS.....NORTHWEST 25-36 MPH. MIXING HEIGHT.......5000-6000 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 0900...THEN GOOD...EXCELLENT AFTER 1300. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0500. MIN TEMPERATURE.....18. MAX HUMIDITY........70%. WIND (20 FT)........WINDY. WEST 26-36 MPH WITH GUSTS TO AROUND 50 MPH. TRANSPORT WINDS.....WEST 36-40 MPH. MIXING HEIGHT.......2800-3800 FT AGL UNTIL 2000...THEN 1200-1400 FT AGL. SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2000. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW. MAX TEMPERATURE.....34. MIN HUMIDITY........38%. WIND (20 FT)........WEST 13-21 MPH. TRANSPORT WINDS.....NORTHWEST 33-40 MPH. MIXING HEIGHT.......2200-3200 FT AGL UNTIL 1100...THEN 4000-5000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN GOOD UNTIL 1000...THEN VERY GOOD UNTIL 1100...THEN EXCELLENT UNTIL 1600...THEN VERY GOOD. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SUNDAY...SNOW LIKELY UNTIL 1200...THEN CHANCE OF SNOW UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS AROUND 11. HIGHS IN THE MID 20S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .PRESIDENTS DAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS AROUND 15. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .TUESDAY...MOSTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 8 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR PORTER RANCH 5. +++ 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 02/12-04 66 10 23 65 W 21 1 2618 NW 21 47916 F 02/12-05 75 10 23 66 W 21 33 2 1 NW52 2121 NW 21 38751 P 02/12-06 75 6 23 65 W 21 1 2265 NW 25 50660 F 02/12-07 75 6 23 64 W 21 1 2408 NW 30 62569 G 02/12-08 75 6 24 61 W 21 33 2 1 NW35 2552 NW 33 74477 G 02/12-09 75 6 27 55 W 21 1 3408 NW 31 90593 G 02/12-10 75 6 30 47 W 22 1 4263 NW 30 106709 V 02/12-11 75 6 33 42 W 22 35 3 1 NW31 5119 NW 28 122825 V 02/12-12 75 6 35 38 W 21 1 5542 NW 29 140497 V 02/12-13 75 6 36 36 W 20 1 5965 NW 30 158168 E 02/12-14 75 6 36 35 W 20 31 3 1 NW38 6388 NW 32 175839 E 02/12-15 75 6 36 34 W 21 1 6037 NW 33 172443 E 02/12-16 75 6 36 34 W 22 1 5686 NW 35 169047 E 02/12-17 75 6 35 35 W 23 37 3 1 NW31 5335 NW 36 165651 E 02/12-18 75 6 25 52 W 23 1 3998 NW 36 124597 V 02/12-19 75 6 24 55 W 24 1 2661 NW 37 83543 G 02/12-20 75 6 23 58 W 24 39 3 1 NW26 1323 W 37 42489 F 02/12-21 75 6 24 56 W 25 1 1362 W 38 45238 F 02/12-22 75 6 23 58 W 28 1 1400 W 39 47986 F 02/12-23 75 9 23 59 W 29 46 3 1 NW16 1438 W 40 50735 F 02/13-00 75 9 23 58 W 30 1 1372 W 40 48155 F 02/13-01 75 9 22 59 W 31 1 1307 W 40 45575 F 02/13-02 75 9 21 62 W 31 49 3 1 NW37 1241 W 40 42995 F 02/13-03 75 9 21 62 W 29 1 1243 W 38 41415 F 02/13-04 75 9 21 62 W 24 1 1244 W 37 39835 P 02/13-05 83 10 20 63 W 20 31 3 1 NW30 1245 W 36 38255 P 02/13-06 83 10 19 67 W 18 1 1203 W 36 37340 P 02/13-07 83 10 18 70 W 17 1 1161 W 36 36425 P 02/13-08 83 10 21 63 W 17 17 3 1 NW25 1120 W 37 35510 P 02/13-09 83 10 26 49 W 17 1 2498 W 37 81055 G 02/13-10 83 10 28 43 W 17 1 3876 NW 37 126600 V 02/13-11 83 20 30 39 W 17 17 3 1 NW10 5254 NW 38 172145 E 02/13-12 83 20 32 38 W 17 1 5321 NW 38 173634 E 02/13-13 83 20 32 39 W 16 1 5389 NW 37 175123 E 02/13-14 83 20 31 41 W 16 16 3 1 NW13 5457 NW 37 176613 E 02/13-15 83 20 30 43 W 16 1 4867 NW 37 156754 E 02/13-16 94 20 27 46 W 15 1 4278 NW 37 136895 V 02/13-17 94 20 23 55 W 15 15 3 1 NW21 3688 NW 37 117036 V 02/13-18 94 20 19 66 W 15 1 2796 NW 33 86459 G 02/13-19 94 20 19 71 W 15 1 1904 NW 31 55881 F 02/13-20 94 20 18 76 W 14 14 3 1 N17 1012 NW 29 25304 P 02/13-21 94 60 18 73 W 13 1 846 NW 26 20018 P 02/13-22 94 60 18 73 W 13 1 681 NW 24 14732 P 02/13-23 94 60 17 74 W 12 12 3 1 NW13 516 NW 21 9446 P 02/14-00 94 60 17 72 W 12 1 476 NW 20 8097 P 02/14-01 94 60 17 75 W 10 1 436 NW 17 6748 P 02/14-02 94 60 15 80 W 10 10 2 1 NW26 396 NW 16 5399 P 02/14-03 94 60 15 81 W 9 1 672 NW 14 7346 P 02/14-04 94 60 15 80 NW 7 1 949 NW 13 9292 P 02/14-05 94 60 15 81 NW 5 5 2 1 NW40 1226 NW 10 11239 P 02/14-06 94 60 13 85 NW 5 1 1493 NW 12 15329 P 02/14-07 94 60 12 88 N 3 1 1761 NW 13 19418 P 02/14-08 94 60 15 79 N 2 2 2 1 NW60 2029 NW 14 23507 P 02/14-09 94 60 19 65 N 2 1 3154 NW 16 50003 F 02/14-10 94 60 21 60 N 2 1 4279 NW 20 76498 G 02/14-11 94 40 23 56 N 3 3 2 1 NW61 5404 NW 22 102993 V 02/14-12 94 40 24 54 N 3 1 5563 NW 24 115642 V 02/14-13 71 40 24 55 NW 5 1 5722 NW 25 128290 V 02/14-14 71 40 24 57 NW 6 6 2 1 N70 5881 NW 28 140938 V 02/14-15 71 40 23 58 NW 6 1 5283 NW 26 121158 V 02/14-16 71 40 22 61 NW 6 1 4685 NW 24 101379 V 02/14-17 71 10 19 68 NW 6 6 2 1 N67 4087 NW 23 81599 G 02/14-18 71 10 16 75 NW 6 1 3097 NW 20 58013 F 02/14-19 71 10 16 77 NW 5 1 2107 NW 15 34428 P 02/14-20 71 10 15 79 W 5 5 2 1 N60 1117 NW 12 10842 P 02/14-21 71 10 16 77 W 5 1 1127 NW 12 11662 P 02/14-22 56 10 15 78 W 6 1 1138 NW 13 12482 P 02/14-23 56 10 15 79 W 7 7 2 1 N53 1148 W 14 13302 P 02/15-00 56 10 15 77 W 8 1 1014 NW 14 11706 P 02/15-01 56 10 15 77 W 10 1 881 NW 13 10110 P 02/15-02 56 10 14 77 W 10 10 2 1 NW51 747 NW 13 8513 P 02/15-03 56 10 14 71 W 10 1 650 W 12 6941 P 02/15-04 56 10 14 66 W 10 1 554 W 10 5369 P 02/15-05 67 0 13 63 W 9 9 2 1 NW54 457 W 9 3797 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 $$ WFO BOULDER REQUESTED BY...CHAD BUSER REASON FOR REQUEST...PRESCRIBED .TAG 20100212.PORTE.01/BOU