FNUS75 KBOU 081336 FWSBOU SPOT FORECAST FOR RFB 9...USFS NATIONAL WEATHER SERVICE DENVER CO 630 AM MST FRI JAN 8 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...DRY AND SLIGHTLY WARMER CONDITIONS CAN BE EXPECTED TODAY AS THE ARCTIC AIRMASS BLANKETING THE GREAT PLAINS BEGINS TO PULL AWAY FROM THE COLORADO FRONT RANGE. EVEN WARMER TEMPERATURES ARE ON TAP FOR THE WEEKEND AS THE TALL RIDGE OF HIGH PRESSURE NOW OVER THE GREAT BASIN MOVES OVER COLORADO. MEANWHILE FOR TODAY THE LOWER ATMOSPHERE WILL REMAIN QUITE STABLE UNDER MODERATELY STRONG NORTHWEST FLOW ALOFT. THIS COMBINATION WILL HELP TO PRODUCE RELATIVELY MILD DOWNSLOPING BREEZES ON THE LEESLOPE OF THE FRONT RANGE LATER TODAY...TONIGHT AND AGAIN TOMORROW. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....21 TO 26. MIN HUMIDITY........26-32%. WIND (20 FT)........NORTHWEST 11-15 MPH. TRANSPORT WINDS.....NORTHWEST 12-20 MPH. MIXING HEIGHT.......200-1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....7 TO 13. MAX HUMIDITY........43-48%. WIND (20 FT)........WEST 12-18 MPH WITH GUSTS TO AROUND 25 MPH. TRANSPORT WINDS.....WEST 9-16 MPH. MIXING HEIGHT.......200 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1100...THEN PARTLY CLOUDY(40-50%). WARMER AND BREEZY. MAX TEMPERATURE.....29 TO 35. MIN HUMIDITY........24-30%. WIND (20 FT)........WEST 14-24 MPH. GUSTS UP TO 30 MPH. TRANSPORT WINDS.....WEST 13-20 MPH. MIXING HEIGHT.......200-1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SUNDAY...PARTLY CLOUDY. LOWS AROUND 19. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND 30 MPH. .MONDAY...MOSTLY CLEAR. LOWS AROUND 19. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 9 MPH WITH GUSTS TO AROUND 20 MPH. .TUESDAY...MOSTLY CLEAR. LOWS AROUND 17. HIGHS IN THE MID 30S. WEST WINDS AROUND 13 MPH WITH GUSTS TO AROUND 30 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR RFB 9. +++ 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 01/08-06 1 0 -4 65 W 12 1 102 W 12 1022 P 01/08-07 1 0 -3 62 W 12 1 104 W 12 1069 P 01/08-08 1 0 -1 55 W 12 12 4 1 N59 107 W 12 1117 P 01/08-09 1 0 4 46 W 13 1 310 W 14 4443 P 01/08-10 1 0 10 37 W 13 1 512 NW 16 7770 P 01/08-11 11 0 15 31 W 13 13 3 1 N61 715 NW 18 11096 P 01/08-12 11 0 19 28 NW 13 1 814 NW 18 13080 P 01/08-13 11 0 20 27 NW 13 1 913 NW 18 15063 P 01/08-14 11 0 20 27 NW 13 13 2 1 N59 1011 NW 20 17047 P 01/08-15 11 0 19 28 NW 13 1 736 NW 17 12061 P 01/08-16 11 0 16 30 W 13 1 460 W 15 7076 P 01/08-17 26 0 13 34 W 13 13 3 1 N64 185 W 13 2090 P 01/08-18 26 0 11 38 W 14 1 172 W 14 1981 P 01/08-19 26 0 11 40 W 14 1 160 W 14 1872 P 01/08-20 26 0 11 42 W 14 22 3 1 N68 148 W 14 1763 P 01/08-21 26 0 11 43 W 14 1 141 W 14 1693 P 01/08-22 26 0 11 44 W 14 1 134 W 14 1624 P 01/08-23 26 0 11 45 W 14 22 2 1 N66 128 W 14 1554 P 01/09-00 26 0 11 45 W 14 1 123 W 14 1473 P 01/09-01 26 0 11 45 W 14 1 118 W 14 1391 P 01/09-02 26 0 11 44 W 14 22 3 1 N61 113 W 14 1310 P 01/09-03 26 0 11 44 W 14 1 109 W 14 1285 P 01/09-04 26 0 11 45 W 14 1 104 W 14 1261 P 01/09-05 13 0 12 44 W 15 24 3 1 N60 100 W 14 1236 P 01/09-06 13 0 12 46 W 21 1 108 W 20 1774 P 01/09-07 13 0 13 45 W 21 1 115 W 18 1866 P 01/09-08 13 0 16 42 W 20 31 3 1 N53 123 W 18 1959 P 01/09-09 13 0 20 38 W 18 1 199 W 17 2795 P 01/09-10 13 0 23 34 W 16 1 275 W 16 3631 P 01/09-11 32 0 26 31 W 15 24 4 1 NW41 351 W 15 4466 P 01/09-12 32 0 29 29 W 14 1 563 W 15 7213 P 01/09-13 32 0 31 27 W 14 1 776 NW 15 9959 P 01/09-14 32 0 31 27 W 14 22 4 1 NW31 989 NW 15 12706 P 01/09-15 32 0 31 27 W 15 1 847 NW 15 11144 P 01/09-16 32 0 30 29 W 15 1 705 W 16 9582 P 01/09-17 56 0 28 31 W 16 25 4 1 NW24 563 W 16 8020 P 01/09-18 56 0 27 34 W 16 1 461 W 16 6505 P 01/09-19 56 0 25 37 W 16 1 359 W 16 4990 P 01/09-20 56 0 25 39 W 16 25 3 1 NW17 257 W 16 3475 P 01/09-21 56 0 24 42 W 16 1 230 W 16 3124 P 01/09-22 56 0 23 43 W 16 1 203 W 16 2773 P 01/09-23 42 0 22 44 W 16 25 2 1 NW14 176 W 16 2423 P 01/10-00 42 0 21 45 W 16 1 171 W 16 2372 P 01/10-01 42 0 21 45 W 17 1 165 W 16 2322 P 01/10-02 42 0 20 45 W 17 28 3 1 W14 160 W 16 2272 P 01/10-03 42 0 20 44 W 17 1 160 W 16 2248 P 01/10-04 42 0 20 45 W 16 1 159 W 16 2224 P 01/10-05 52 0 20 45 W 16 25 2 1 W18 158 W 16 2201 P 01/10-06 52 0 20 46 W 16 1 180 W 16 2487 P 01/10-07 52 0 20 45 W 16 1 202 W 16 2773 P 01/10-08 52 0 23 43 W 16 25 3 1 W22 224 W 16 3059 P 01/10-09 52 0 26 39 W 16 1 626 W 17 9878 P 01/10-10 52 0 29 36 W 15 1 1027 W 18 16696 P 01/10-11 46 0 31 33 W 15 24 3 1 NW26 1429 W 18 23515 P 01/10-12 46 0 34 30 W 15 1 1909 W 21 35317 P 01/10-13 46 0 35 28 W 15 1 2389 NW 22 47120 F 01/10-14 46 0 36 27 W 15 24 3 1 NW30 2870 NW 24 58922 F 01/10-15 46 0 35 28 W 15 1 2376 NW 21 45903 F 01/10-16 46 0 34 30 W 15 1 1882 NW 18 32884 P 01/10-17 35 0 31 36 W 15 24 2 1 NW28 1388 NW 16 19866 P 01/10-18 35 0 29 42 W 14 1 1055 W 15 14541 P 01/10-19 35 0 27 46 W 14 1 723 W 13 9217 P 01/10-20 35 0 26 47 W 13 13 2 1 N21 390 W 12 3893 P 01/10-21 35 0 25 48 W 13 1 322 W 12 3265 P 01/10-22 35 0 24 49 W 13 1 254 W 13 2636 P 01/10-23 39 0 23 49 W 13 13 2 1 N15 186 W 13 2008 P 01/11-00 39 0 22 50 W 13 1 172 W 13 1824 P 01/11-01 39 0 21 52 W 12 1 157 W 12 1640 P 01/11-02 39 0 20 54 W 12 12 2 1 NW13 143 W 12 1457 P 01/11-03 39 0 20 55 W 12 1 137 W 12 1381 P 01/11-04 39 0 20 56 W 10 1 131 W 12 1306 P 01/11-05 10 0 20 56 W 10 10 2 1 NW14 125 W 12 1231 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...BAKER WFO BOULDER REQUESTED BY...CHAD BUSER REASON FOR REQUEST...PRESCRIBED .TAG 20100108.RFB9_.01/BOU