FNUS75 KBOU 210938 FWSBOU SPOT FORECAST FOR MOUNT FALCON SLASH PILES...USFS NATIONAL WEATHER SERVICE DENVER CO 337 AM MDT TUE APR 21 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE ALOFT WILL BUILD ACROSS THE GREAT BASIN WITH A DECREASING NORTHWEST FLOW PATTERN. THE AIRMASS WILL REMAIN DRY. TEMPERATURES WILL CONTINUE TO WARM WITH SLIGHTLY LOWER RELATIVE HUMIDITY LEVELS. THERE WILL BE A SLIGHT CHANCE OF AFTERNOON AND EVENING HIGH BASED THUNDERSTORMS ON WEDNESDAY WITH WARMER TEMPERATURES AND LOWER HUMIDITY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....63-65. MIN HUMIDITY........21-25%. 20-FOOT WINDS.......NORTHWEST 7-13 MPH UNTIL 1200. TRANSPORT WINDS.....NORTHWEST 9-16 MPH. MIXING HEIGHT.......400-1000 FT AGL UNTIL 1000. 7800-8800 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1000. VERY GOOD AFTER 1400. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....42-44. MAX HUMIDITY........45-49%. 20-FOOT WINDS.......WEST 10-16 MPH. TRANSPORT WINDS.....WEST 9-16 MPH. MIXING HEIGHT.......7600 FT AGL UNTIL 1900. 800-1000 FT AGL AFTER 2400. SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2100. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY(50-60%). ISOLATED THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....65-68. MIN HUMIDITY........18-21%. 20-FOOT WINDS.......WEST 9-15 MPH. TRANSPORT WINDS.....WEST 9-20 MPH. MIXING HEIGHT.......200-1200 FT AGL UNTIL 1000. 12400-13400 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1000. EXCELLENT AFTER 1200. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S. WEST WINDS AROUND 12 MPH WITH GUSTS TO AROUND 25 MPH. .FRIDAY...PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AFTER 0600. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 14 MPH WITH GUSTS TO AROUND 30 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR MOUNT FALCON SLASH PILES. +++ 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 04/21-03 20 0 36 64 W 14 22 2 1 NW30 270 W 14 3331 P 04/21-04 20 0 35 66 W 14 1 293 W 14 3529 P 04/21-05 20 0 35 65 W 14 1 315 W 14 3727 P 04/21-06 13 0 36 65 W 13 13 2 1 NW29 338 W 14 3925 P 04/21-07 13 0 37 62 W 10 1 590 W 13 5949 P 04/21-08 13 0 41 55 W 8 1 842 W 12 7972 P 04/21-09 13 0 45 47 W 7 7 2 1 NW26 1094 W 10 9996 P 04/21-10 13 0 50 39 NW 6 1 3079 NW 12 34498 P 04/21-11 13 0 55 34 N 6 1 5064 NW 13 58999 F 04/21-12 13 0 58 30 N 7 7 2 1 NW25 7048 NW 14 83501 G 04/21-13 13 0 61 28 N 6 1 7771 NW 15 98532 G 04/21-14 13 0 62 26 N 6 1 8493 NW 15 113563 V 04/21-15 13 0 63 26 N 6 6 2 1 NW25 9216 NW 16 128594 V 04/21-16 13 0 63 25 N 6 1 8690 NW 16 121102 V 04/21-17 13 0 62 26 NW 6 1 8165 W 16 113609 V 04/21-18 10 0 61 28 W 7 7 2 1 W25 7640 W 16 106116 V 04/21-19 10 0 59 30 W 7 1 6023 W 15 80636 G 04/21-20 10 0 56 34 W 8 1 4407 W 14 55156 F 04/21-21 10 0 52 39 W 9 9 2 1 W20 2790 W 13 29677 P 04/21-22 10 0 49 43 W 10 1 2220 W 12 23411 P 04/21-23 10 0 48 45 W 12 1 1650 W 12 17145 P 04/22-00 20 0 46 47 W 13 13 2 1 W15 1081 W 12 10880 P 04/22-01 20 0 45 48 W 13 1 978 W 12 9837 P 04/22-02 20 0 44 49 W 13 1 876 W 12 8794 P 04/22-03 20 0 44 49 W 13 13 2 1 W16 773 W 12 7751 P 04/22-04 20 0 43 49 W 14 1 777 W 12 7619 P 04/22-05 20 0 43 47 W 14 1 781 W 12 7487 P 04/22-06 16 0 44 45 W 14 22 3 1 W15 193 W 13 2158 P 04/22-07 16 0 45 44 W 10 1 530 W 12 4697 P 04/22-08 16 0 47 40 W 8 1 868 W 10 7235 P 04/22-09 16 0 51 35 W 7 7 3 1 W15 1206 W 9 9773 P 04/22-10 16 0 55 30 W 7 1 4782 W 10 51482 F 04/22-11 16 0 59 26 W 9 1 8359 W 12 93190 G 04/22-12 55 10 62 22 NW 10 10 3 2 W10 11935 W 13 134899 V 04/22-13 55 10 64 21 NW 10 2 12559 W 14 148157 V 04/22-14 55 10 65 20 NW 12 2 13182 W 14 161414 E 04/22-15 55 10 66 20 NW 12 12 3 2 NW14 13806 W 15 174672 E 04/22-16 55 10 66 20 W 13 2 12920 W 16 179498 E 04/22-17 55 10 65 21 W 13 2 12034 W 18 184325 E 04/22-18 55 10 63 22 W 13 13 3 2 NW24 11149 W 20 189151 E 04/22-19 55 10 61 25 W 12 2 7598 W 18 128184 V 04/22-20 30 9 57 28 W 10 1 4047 W 16 67216 G 04/22-21 30 9 53 32 W 9 9 3 1 NW22 496 W 15 6249 P 04/22-22 30 9 50 34 W 10 1 404 W 14 5000 P 04/22-23 30 9 48 34 W 12 1 312 W 14 3751 P 04/23-00 24 0 47 35 W 13 13 5 1 NW20 220 W 13 2502 P 04/23-01 24 0 46 37 W 13 1 199 W 14 2308 P 04/23-02 24 0 44 38 W 14 1 179 W 14 2114 P 04/23-03 24 0 44 39 W 14 22 5 1 NW24 158 W 14 1920 P 04/23-04 24 0 43 41 W 15 1 157 W 14 1916 P 04/23-05 24 0 43 40 W 15 1 155 W 14 1913 P 04/23-06 21 0 44 40 W 15 24 4 1 NW21 153 W 14 1909 P 04/23-07 21 0 45 39 W 13 1 309 W 15 3889 P 04/23-08 21 0 48 36 W 10 1 466 W 15 5869 P 04/23-09 21 0 52 30 W 9 9 5 1 NW18 622 W 15 7849 P 04/23-10 21 0 57 25 W 10 1 3486 W 17 61565 G 04/23-11 21 0 60 22 W 12 1 6351 W 18 115280 V 04/23-12 55 0 63 19 W 13 13 4 1 NW24 9215 NW 21 168995 E 04/23-13 55 0 65 17 W 13 1 10878 W 21 187831 E 04/23-14 55 0 67 16 W 13 1 12540 W 20 206667 E 04/23-15 55 0 68 16 W 13 13 4 1 W23 14203 W 18 225503 E 04/23-16 55 0 68 16 W 12 1 12432 W 20 207478 E 04/23-17 55 0 67 16 W 10 1 10661 W 21 189454 E 04/23-18 55 0 64 21 W 9 9 4 1 W23 8891 W 22 171430 E 04/23-19 55 0 62 25 W 9 1 6055 W 20 115873 V 04/23-20 45 0 59 30 W 9 1 3220 W 17 60315 G 04/23-21 45 0 54 36 W 9 9 5 1 W17 385 W 14 4758 P 04/23-22 45 0 52 40 W 9 1 310 W 13 3676 P 04/23-23 45 0 50 43 W 9 1 236 W 12 2594 P 04/24-00 45 0 48 45 W 9 9 6 1 W17 161 W 10 1512 P 04/24-01 45 0 47 48 W 6 1 149 W 9 1275 P 04/24-02 45 0 46 49 W 6 1 136 W 8 1037 P 04/24-03 45 0 45 50 W 6 6 6 1 SW17 124 W 7 800 P 04/24-04 45 0 44 50 W 7 1 128 W 9 994 P 04/24-05 45 0 44 48 W 8 1 131 W 10 1187 P 04/24-06 60 0 45 47 SW 10 10 4 1 SW 8 134 W 12 1381 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...KEITH BOL REASON FOR REQUEST...PRESCRIBED .TAG 20090421.MOUNT.01/BOU