FNUS75 KBOU 180341 FWSBOU SPOT FORECAST FOR CHASM MEADOW PROJECT...USFS NATIONAL WEATHER SERVICE DENVER CO 939 PM MDT THU SEP 17 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER LEVEL RIDGE WILL CONTINUE TO BRING MILD AND DRY CONDITIONS THROUGH SATURDAY. LIGHT DIURNAL WINDS WILL PREVAIL FOR THE PERIOD. SKIES WILL STAY MOSTLY CLEAR WITH MAINLY HIGH CLOUDS THROUGH SATURDAY. THERE WILL BE A SLIGHT CHANCE FOR A THUNDERSTORM SATURDAY AFTERNOON. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .FRIDAY... SKY/WEATHER.........SUNNY UNTIL 1200...THEN PARTLY CLOUDY(35-45%). MAX TEMPERATURE.....47-53. MIN HUMIDITY........37-43%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 2-6 MPH UNTIL 1200...THEN EAST 4-8 MPH WITH GUSTS TO 15 MPH. TRANSPORT WINDS.....NORTH 4-8 MPH UNTIL 1200...THEN EAST 5-12 MPH. MIXING HEIGHT.......2600-3600 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY NIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....35-40. MAX HUMIDITY........65-75%. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 2-8 MPH UNTIL 2400...THEN WEST 8-13 MPH. TRANSPORT WINDS.....SOUTHEAST 4-8 MPH UNTIL 2400...THEN WEST. MIXING HEIGHT.......2200-3200 FT AGL UNTIL 2100...THEN 400-1400 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY(50-60%). SLIGHT CHANCE OF THUNDERSTORMS AFTER 1300. MAX TEMPERATURE.....50-55. MIN HUMIDITY........39-44%. 20-FOOT WINDS.......WEST 6-12 MPH UNTIL 1200...THEN UPSLOPE/UPVALLEY 3-8 MPH. TRANSPORT WINDS.....WEST 4-8 MPH. MIXING HEIGHT.......1800-2800 FT AGL UNTIL 1300...THEN 5400-6400 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. EXPERIMENTAL FIRE WEATHER TABLE FOR CHASM MEADOW PROJECT. +++ 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 09/18-06 5 0 38 53 N 2 2 5 1 NE 7 180 N 2 382 P 09/18-07 5 0 38 54 NE 2 1 458 N 2 895 P 09/18-08 5 0 38 55 CALM 1 737 N 2 1408 P 09/18-09 5 0 41 49 CALM 0 5 1 NE 9 1016 N 2 1921 P 09/18-10 5 0 45 43 CALM 1 1754 NE 3 7804 P 09/18-11 40 0 47 41 E 3 1 2491 NE 6 13686 P 09/18-12 40 0 47 42 E 5 5 4 1 NE14 3229 NE 7 19569 P 09/18-13 40 10 48 42 E 7 2 3409 E 7 21091 P 09/18-14 40 10 48 45 E 8 2 3590 E 7 22614 P 09/18-15 40 10 48 48 E 9 9 4 2 NE13 3770 E 7 24136 P 09/18-16 40 10 46 55 E 9 2 3150 E 8 20690 P 09/18-17 40 10 46 56 E 9 2 2530 E 8 17244 P 09/18-18 38 3 44 60 E 8 8 4 1 NE 9 1910 E 8 13799 P 09/18-19 38 3 42 63 E 8 1 3471 E 8 21739 P 09/18-20 38 3 40 65 SE 8 1 2432 E 8 16515 P 09/18-21 28 0 40 62 SE 7 7 5 1 NE12 1392 SE 9 11292 P 09/18-22 28 0 39 61 SE 6 1 1111 SE 8 8197 P 09/18-23 28 0 39 59 S 6 1 830 S 6 5102 P 09/19-00 17 0 38 57 SW 6 6 6 1 E 8 548 S 5 2007 P 09/19-01 17 0 38 56 SW 7 1 441 SW 6 1883 P 09/19-02 17 0 37 56 W 9 1 333 W 7 1760 P 09/19-03 17 0 37 55 W 10 10 6 1 SE 5 226 W 8 1636 P 09/19-04 17 0 37 55 W 10 1 210 W 8 1566 P 09/19-05 17 0 37 54 W 10 1 195 W 9 1496 P 09/19-06 17 0 37 55 W 10 10 6 1 SE 5 179 W 9 1426 P 09/19-07 17 0 38 54 W 9 1 381 W 8 2555 P 09/19-08 17 0 40 52 W 9 1 582 W 8 3684 P 09/19-09 17 0 42 49 W 8 8 5 1 S 6 784 W 7 4813 P 09/19-10 17 0 44 46 W 7 1 1652 W 7 8540 P 09/19-11 38 0 47 43 W 6 1 2521 W 6 12268 P 09/19-12 38 0 49 41 W 6 6 4 1 S 6 3389 W 6 15996 P 09/19-13 58 20 50 41 W 6 3 4595 W 6 23740 P 09/19-14 58 20 51 41 W 7 3 5801 W 6 31485 P 09/19-15 58 20 52 42 SW 7 7 4 3 W 6 7007 W 7 39230 P 09/19-16 58 20 52 43 SW 6 3 6353 W 6 32541 P 09/19-17 58 20 51 44 S 6 3 5699 W 5 25851 P 09/19-18 58 20 51 46 S 5 5 4 3 NW10 5045 W 5 19161 P 09/19-19 58 20 49 48 S 5 3 3561 W 5 13497 P 09/19-20 58 20 47 51 S 6 3 2077 SW 5 7832 P 09/19-21 28 20 45 53 S 6 6 3 3 NW 9 592 SW 5 2167 P 09/19-22 28 0 43 55 SW 6 1 465 SW 5 1812 P 09/19-23 28 0 42 56 SW 6 1 337 SW 6 1456 P 09/20-00 19 0 41 56 SW 6 6 4 1 W 2 209 W 6 1100 P 09/20-01 19 0 40 56 SW 7 1 212 W 7 1353 P 09/20-02 19 0 39 56 SW 8 1 215 W 8 1606 P 09/20-03 19 0 39 57 W 9 9 4 1 W10 218 W 10 1859 P 09/20-04 19 0 38 57 W 12 1 211 W 12 2024 P 09/20-05 19 0 38 57 W 13 1 204 W 13 2188 P 09/20-06 29 0 38 56 W 14 22 5 1 W13 197 W 14 2353 P 09/20-07 29 0 39 53 W 14 1 510 W 15 7229 P 09/20-08 29 0 41 49 W 14 1 824 W 16 12105 P 09/20-09 29 0 45 43 W 14 22 4 1 W12 1137 W 17 16980 P 09/20-10 29 0 48 39 W 13 1 2317 W 16 28638 P 09/20-11 29 0 49 38 W 13 1 3496 W 14 40296 F 09/20-12 64 20 50 36 W 13 13 4 3 W 9 4676 W 13 51954 F 09/20-13 64 20 51 37 W 14 3 5329 W 13 61664 G 09/20-14 64 20 52 38 W 14 3 5983 W 14 71373 G 09/20-15 64 20 52 39 W 15 24 3 3 W10 6636 W 14 81082 G 09/20-16 64 20 52 41 W 16 3 5692 W 16 74516 G 09/20-17 64 20 51 44 W 16 3 4748 W 17 67950 G 09/20-18 64 20 51 46 W 16 25 4 3 W13 3804 W 18 61383 G 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...DAVE LARSEN REASON FOR REQUEST...SAR .TAG 20090917.CHASM.02/BOU