FNUS75 KBOU 101855 FWSBOU SPOT FORECAST FOR FLATTOP TRAIL SAR...USFS NATIONAL WEATHER SERVICE DENVER CO 1255 PM MDT MON AUG 10 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...ZONAL FLOW WITH WEAK WESTERLY WINDS ALOFT WILL CONTINUE OVER COLORADO THROUGH TOMORROW. SURFACE LOW PRESSURE OVER SOUTHERN COLORADO AND HIGHER PRESSURE ACROSS NORTHEAST COLORADO WILL PRODUCE WEAK SOUTHEASTERLY WINDS NEAR THE FOOTHILLS. LOW LEVEL MOISTURE ON THE PLAINS WILL BE HEATED THROUGH THE AFTERNOON WITH AFTERNOON SHOWERS DEVELOPING. ISOLATED AFTERNOON SHOWERS ARE EXPECTED OVER THE MOUNTAINS AND FOOTHILLS. CLEARING SKIES ARE EXPECTED AFTER SUNSET. SIMILAR CONDITIONS ARE EXPECTED ON TUESDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%). ISOLATED THUNDERSTORMS. MAX TEMPERATURE.....58-64. MIN HUMIDITY........32-38%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....WEST 13-20 MPH. MIXING HEIGHT.......9200-10200 FT AGL. SMOKE DISPERSAL.....VERY GOOD. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 2400...THEN CLEAR. ISOLATED THUNDERSTORMS UNTIL 2100. MIN TEMPERATURE.....35-41. MAX HUMIDITY........67-75%. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 2-8 MPH. TRANSPORT WINDS.....WEST 5-16 MPH. MIXING HEIGHT.......7500-8500 FT AGL UNTIL 1900. 200-600 FT AGL AFTER 2100. SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2100. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TUESDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1400...THEN PARTLY CLOUDY(30-40%). SLIGHT CHANCE OF THUNDERSTORMS AFTER 1400. MAX TEMPERATURE.....62-68. MIN HUMIDITY........30-38%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....WEST 4-12 MPH. MIXING HEIGHT.......500-1000 FT AGL UNTIL 1000. 9000-10000 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1100. GOOD AFTER 1200. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...MOSTLY CLEAR. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .THURSDAY...PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS AROUND 40. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR FLATTOP TRAIL SAR. +++ 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 08/10-12 44 10 55 36 W 6 6 2 2 W31 8766 W 16 121977 V 08/10-13 44 10 56 36 W 6 2 9397 W 16 127715 V 08/10-14 44 10 57 36 W 5 2 10029 W 15 133454 V 08/10-15 51 10 57 37 SW 5 5 3 2 W23 10660 W 15 139193 V 08/10-16 51 10 57 38 W 5 2 9825 W 16 133656 V 08/10-17 51 10 57 40 W 6 2 8990 W 16 128120 V 08/10-18 53 10 56 42 W 6 6 3 2 W30 8155 W 17 122584 V 08/10-19 53 10 55 45 W 6 2 5782 W 14 83702 G 08/10-20 53 10 53 49 W 5 2 3408 W 10 44820 F 08/10-21 23 0 50 54 W 5 5 3 1 W30 1034 NW 7 5938 P 08/10-22 23 0 49 56 W 5 1 767 NW 6 4230 P 08/10-23 23 0 48 59 W 5 1 500 W 5 2521 P 08/11-00 6 0 46 62 W 5 5 2 1 W25 233 W 3 813 P 08/11-01 6 0 44 66 W 5 1 217 W 5 790 P 08/11-02 6 0 43 67 W 5 1 202 W 5 766 P 08/11-03 4 0 42 67 W 5 5 2 1 W23 187 W 5 743 P 08/11-04 4 0 42 66 W 5 1 188 W 5 767 P 08/11-05 4 0 42 64 W 6 1 189 W 5 790 P 08/11-06 29 0 42 62 W 6 6 2 1 W16 189 W 5 814 P 08/11-07 29 0 43 62 W 5 1 750 W 6 3860 P 08/11-08 29 0 47 55 SW 5 1 1311 W 6 6906 P 08/11-09 29 0 51 50 SW 5 5 2 1 W13 1871 W 6 9951 P 08/11-10 29 0 54 45 SW 5 1 4227 W 7 26516 P 08/11-11 29 0 57 42 SW 6 1 6582 W 7 43081 F 08/11-12 29 0 58 39 SW 6 6 2 1 W15 8937 W 8 59646 F 08/11-13 29 0 60 38 SW 6 1 9411 W 8 68367 G 08/11-14 33 10 61 37 SW 7 2 9886 SW 9 77089 G 08/11-15 33 10 62 36 S 7 7 2 2 W16 10360 SW 9 85810 G 08/11-16 33 10 62 37 SW 7 2 10022 W 10 85463 G 08/11-17 33 10 62 38 SW 7 2 9685 W 10 85115 G 08/11-18 33 10 61 39 SW 7 7 2 2 W14 9348 W 10 84768 G 08/11-19 33 10 59 42 W 6 2 7199 W 9 62153 G 08/11-20 33 10 57 45 W 6 2 5050 W 8 39537 P 08/11-21 33 10 55 48 W 5 5 2 2 W14 2901 W 7 16922 P 08/11-22 33 10 54 50 W 6 2 2021 W 7 11813 P 08/11-23 33 10 52 52 W 6 2 1141 W 7 6704 P 08/12-00 33 0 50 54 W 7 7 2 1 W17 261 W 7 1595 P 08/12-01 33 0 48 57 W 7 1 237 W 7 1441 P 08/12-02 14 0 47 58 W 7 1 214 W 7 1286 P 08/12-03 14 0 46 58 W 7 7 3 1 W16 190 W 7 1132 P 08/12-04 14 0 46 57 W 7 1 187 W 7 1133 P 08/12-05 14 0 46 55 W 7 1 185 W 7 1134 P 08/12-06 14 0 46 54 W 7 7 2 1 W20 182 W 7 1135 P 08/12-07 14 0 47 53 W 8 1 961 W 9 9257 P 08/12-08 14 0 51 47 W 8 1 1741 W 10 17379 P 08/12-09 14 0 54 42 W 8 8 2 1 W18 2520 W 12 25501 P 08/12-10 14 0 57 38 W 8 1 4846 W 13 56635 F 08/12-11 14 0 60 34 W 9 1 7172 W 14 87770 G 08/12-12 14 0 61 32 W 9 9 3 1 W18 9498 W 15 118904 V 08/12-13 14 0 63 30 W 9 1 10307 W 14 121425 V 08/12-14 27 10 64 30 W 9 1 11117 W 13 123945 V 08/12-15 27 10 64 29 W 8 8 3 1 W14 11927 W 13 126466 V 08/12-16 27 10 65 29 W 8 1 11557 W 12 115672 V 08/12-17 27 10 64 30 W 7 1 11187 W 10 104878 V 08/12-18 27 10 63 31 W 6 6 3 1 W12 10817 W 10 94084 G 08/12-19 27 10 61 32 NW 6 1 8079 NW 8 65936 G 08/12-20 27 10 59 33 NW 5 1 5341 NW 6 37788 P 08/12-21 27 10 57 34 NW 3 3 3 1 W15 2602 NW 5 9640 P 08/12-22 27 10 55 34 NW 3 1 1803 NW 3 6563 P 08/12-23 27 0 54 34 NW 3 1 1003 NW 3 3487 P 08/13-00 27 0 52 35 NW 3 3 3 1 W18 204 N 2 410 P 08/13-01 29 0 49 36 NW 3 1 193 NW 2 404 P 08/13-02 29 0 48 37 SW 2 1 183 W 2 399 P 08/13-03 29 0 47 37 SW 3 3 3 1 W16 173 SW 2 393 P 08/13-04 29 0 47 38 CALM 1 173 SW 3 507 P 08/13-05 29 0 47 38 W 2 1 174 SW 5 621 P 08/13-06 29 0 47 38 W 6 6 3 1 W 9 175 SW 5 736 P 08/13-07 29 0 48 38 W 7 1 08/13-08 29 0 51 34 W 8 1 08/13-09 29 0 55 31 W 8 8 1 08/13-10 29 0 58 29 SW 7 1 08/13-11 29 0 60 28 SW 6 1 08/13-12 49 0 62 28 SW 5 5 08/13-13 49 0 63 27 SW 5 08/13-14 49 0 64 27 SW 5 08/13-15 49 0 65 27 W 5 5 08/13-16 49 0 65 27 W 5 08/13-17 49 0 64 28 NW 5 08/13-18 49 0 63 28 N 6 6 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 $$ DANKERS...WFO BOULDER REQUESTED BY...CHRIS ERSKINE REASON FOR REQUEST...SAR .TAG 20090810.FLATT.01/BOU