FNUS75 KBOU 261227 FWSBOU SPOT FORECAST FOR PORTER RANCH 5...USFS NATIONAL WEATHER SERVICE DENVER CO 530 AM MST FRI FEB 26 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE ACROSS THE GREAT BASIN WILL BUILD ACROSS COLORADO THROUGH TONIGHT. A FEW LINGERING CLOUDS EARLY THIS MORNING WILL GIVE WAY TO SUNNY SKIES BY LATER THIS MORNING. SMOKE DISPERSAL WILL RAPIDLY IMPROVE BY LATER THIS MORNING. STRONG MID LEVEL WARMING TONIGHT WILL RESULT IN DIMINISHED SMOKE DISPERSAL ON SATURDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1000...THEN MOSTLY SUNNY. MAX TEMPERATURE.....33. MIN HUMIDITY........40%. WIND (20 FT)........NORTHWEST 8-16 MPH. TRANSPORT WINDS.....NORTHWEST 12-20 MPH. MIXING HEIGHT.......2000-3000 FT AGL UNTIL 0900...THEN 6200-7200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0800...THEN FAIR UNTIL 0900...THEN GOOD. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....21. MAX HUMIDITY........52%. WIND (20 FT)........WEST 12-16 MPH. TRANSPORT WINDS.....WEST 9-16 MPH. MIXING HEIGHT.......3600-4600 FT AGL UNTIL 2000...THEN 400-1400 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 1900. POOR AFTER 2000. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1100...THEN MOSTLY CLOUDY. MAX TEMPERATURE.....37. MIN HUMIDITY........35%. WIND (20 FT)........SOUTHWEST 7-13 MPH UNTIL 1200...THEN SOUTHEAST 4-7 MPH. TRANSPORT WINDS.....WEST 4-12 MPH. MIXING HEIGHT.......1600-2600 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SUNDAY...CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600...THEN CHANCE OF SNOW. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 0600...THEN SLIGHT CHANCE OF SNOW UNTIL 1200...THEN SLIGHT CHANCE OF SNOW SHOWERS UNTIL 1800. LOWS AROUND 20. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY. LOWS AROUND 19. HIGHS IN THE UPPER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 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 02/26-05 62 0 17 76 W 12 12 3 1 NW23 988 NW 10 8797 P 02/26-06 62 0 17 75 W 12 1 1739 NW 12 19874 P 02/26-07 62 0 18 70 W 12 1 2490 NW 14 30951 P 02/26-08 43 0 21 63 W 12 12 3 1 NW22 3240 NW 15 42029 F 02/26-09 43 0 24 57 W 12 1 4592 NW 15 60231 G 02/26-10 43 0 26 51 W 13 1 5944 NW 15 78432 G 02/26-11 10 0 28 47 W 13 13 2 1 N32 7296 NW 15 96634 G 02/26-12 10 0 30 43 W 13 1 7529 NW 16 103374 V 02/26-13 10 0 31 41 W 14 1 7761 NW 16 110113 V 02/26-14 10 0 32 40 W 14 22 2 1 N52 7994 NW 17 116853 V 02/26-15 10 0 32 40 W 14 1 7176 NW 16 102910 V 02/26-16 10 0 31 41 W 14 1 6358 NW 16 88968 G 02/26-17 15 0 30 43 W 14 22 3 1 N61 5541 NW 16 75025 G 02/26-18 15 0 28 44 W 14 1 4524 NW 15 58956 F 02/26-19 15 0 27 46 W 13 1 3507 NW 14 42887 F 02/26-20 15 0 26 48 W 13 13 4 1 N52 2491 NW 13 26818 P 02/26-21 15 0 25 49 W 13 1 2095 NW 13 23181 P 02/26-22 15 0 24 51 W 14 1 1699 W 14 19545 P 02/26-23 15 0 23 51 W 14 22 4 1 NW40 1302 W 14 15908 P 02/27-00 15 0 23 52 W 14 1 1073 W 13 12541 P 02/27-01 15 0 22 51 W 14 1 844 W 12 9174 P 02/27-02 15 0 22 51 W 14 22 5 1 NW38 615 W 10 5807 P 02/27-03 15 0 22 50 W 14 1 494 W 12 4872 P 02/27-04 15 0 22 50 W 14 1 374 W 13 3937 P 02/27-05 51 0 22 49 W 14 22 4 1 NW30 253 W 14 3003 P 02/27-06 51 0 22 48 W 13 1 265 W 12 2766 P 02/27-07 51 0 23 48 W 10 1 256 W 10 2291 P 02/27-08 51 0 25 48 W 8 8 2 1 NW28 247 W 8 1816 P 02/27-09 51 0 27 45 W 6 1 655 W 9 5336 P 02/27-10 51 0 30 41 SW 2 1 1063 W 9 8856 P 02/27-11 61 0 33 38 CALM 1 3 1 W22 1471 W 9 12376 P 02/27-12 61 0 35 37 CALM 1 1926 W 10 18178 P 02/27-13 61 0 36 37 S 2 1 2380 W 12 23979 P 02/27-14 61 0 36 37 SE 3 3 2 1 W30 2835 W 13 29780 P 02/27-15 61 0 36 36 SE 3 1 2563 SW 10 23010 P 02/27-16 61 0 36 35 E 3 1 2291 SW 8 16239 P 02/27-17 79 7 35 36 E 3 3 2 1 W38 2019 SW 6 9468 P 02/27-18 79 7 33 39 E 2 1 1548 S 3 6507 P 02/27-19 79 7 30 44 E 2 1 1078 SE 2 3545 P 02/27-20 79 7 28 51 CALM 1 3 1 SW28 607 CALM 583 P 02/27-21 79 7 27 56 CALM 1 525 CALM 432 P 02/27-22 79 7 26 61 N 2 1 442 CALM 280 P 02/27-23 79 20 25 65 N 2 2 3 1 S26 360 CALM 129 P 02/28-00 79 20 25 68 N 2 1 349 CALM 242 P 02/28-01 79 20 24 70 N 2 1 337 CALM 354 P 02/28-02 79 20 23 71 NE 2 2 3 1 S26 326 CALM 467 P 02/28-03 79 20 23 72 NE 2 1 314 NE 2 540 P 02/28-04 79 20 23 73 NE 2 1 302 N 2 612 P 02/28-05 89 50 23 73 NE 2 2 2 1 S23 290 N 2 685 P 02/28-06 89 50 23 75 NE 3 1 440 N 3 1745 P 02/28-07 89 50 23 76 NE 3 1 590 N 5 2805 P 02/28-08 89 50 24 77 NE 5 5 2 1 SW10 741 N 6 3865 P 02/28-09 89 50 25 74 NE 5 1 1830 N 5 5481 P 02/28-10 89 50 28 69 NE 6 1 2920 NE 3 7096 P 02/28-11 89 50 30 66 NE 6 6 2 1 CALM 4010 NE 2 8712 P 02/28-12 89 50 31 64 NE 6 1 4277 NE 2 10150 P 02/28-13 89 50 31 62 NE 7 1 4545 N 3 11589 P 02/28-14 89 50 32 62 NE 7 7 2 1 E 6 4812 N 3 13027 P 02/28-15 89 50 31 62 NE 8 1 4729 N 5 20223 P 02/28-16 89 50 31 63 NE 9 1 4647 N 7 27418 P 02/28-17 93 30 30 64 E 6 6 2 1 NE 6 4564 N 9 34614 P 02/28-18 93 30 29 67 E 6 1 4110 N 9 32331 P 02/28-19 93 30 27 72 E 5 1 3656 N 9 30048 P 02/28-20 93 30 26 76 E 5 5 2 1 NE 6 3203 N 10 27765 P 02/28-21 93 30 25 79 E 5 1 2916 N 9 23647 P 02/28-22 93 30 24 81 NE 3 1 2629 N 8 19529 P 02/28-23 93 30 24 83 NE 3 3 2 1 E 6 2343 N 8 15411 P 03/01-00 93 30 23 83 NE 3 1 2158 N 8 14882 P 03/01-01 93 30 23 83 NE 3 1 1974 N 8 14353 P 03/01-02 93 30 22 83 NE 3 3 2 1 NE 5 1789 N 9 13824 P 03/01-03 93 30 22 83 NE 3 1 1797 N 8 13449 P 03/01-04 93 30 22 83 NE 2 1 1804 N 8 13074 P 03/01-05 72 21 22 81 NE 2 2 2 1 N 9 1812 N 8 12699 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...CHAD BUSER REASON FOR REQUEST...PRESCRIBED .TAG 20100226.PORTE.01/BOU