FNUS75 KBOU 170217 FWSBOU SPOT FORECAST FOR JAMES CREEK RFB 9...USFS NATIONAL WEATHER SERVICE DENVER CO 717 PM MST SAT JAN 16 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A RIDGE OF HIGH PRESSURE ALOFT WILL BE MOVING EAST SUNDAY MORNING AHEAD OF AN UPPER TROUGH TO CROSS THE STATE SUNDAY EVENING. THIS TROUGH WILL BRING COOLER TEMPS ALOFT WHICH WILL HELP DIMINISH THE INVERSIONS BY LATE SUNDAY MORNING...ALLOWING FOR MUCH BETTER SMOKE DISPERSION THAN THE LAST SEVERAL DAYS. SHOULD SEE LIGHTER WINDS SUNDAY THAN COMPARED TO TODAY ALONG WITH TEMPERATURES A FEW DEGREES COOLER AND HUMIDITIES SLIGHTLY HIGHER AS CLOUD COVER INCREASES WITH THE NEARING TROUGH. A SHORTWAVE RIDGE MOVES OVERHEAD EARLY MONDAY BRINGING MORE STABLE AIR UNTIL THE TROUGH BEGINS TO SPREAD MORE MOISTURE OVER THE MOUNTAINS AND BRINGS A SLIGHT CHANCE OF SNOW MONDAY NIGHT. THE MAIN UPPER LOW WILL REMAIN RELATIVELY IN PLACE IN THE PACIFIC FOR THE REST OF THE WORK WEEK WHILE SENDING MULTIPLE SHORTWAVE TROUGHS ACROSS THE WESTERN U.S. THIS WILL PRODUCE COOLER TEMPERATURES...HIGHER HUMIDITIES AND ON AND OFF CHANCES OF SNOW THROUGH FRIDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........MOSTLY HIGH CLOUDS. MIN TEMPERATURE.....29. MAX HUMIDITY........46%. WIND (20 FT)........WEST 6-12 MPH. GUSTS UP TO 20 MPH EARLY IN THE MORNING. TRANSPORT WINDS.....WEST 9-16 MPH. MIXING HEIGHT.......200-800 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY... SKY/WEATHER.........MOSTLY CLOUDY. MAX TEMPERATURE.....40. MIN HUMIDITY........37%. WIND (20 FT)........WEST 6-10 MPH. TRANSPORT WINDS.....WEST 13-24 MPH. MIXING HEIGHT.......1200-2200 FT AGL UNTIL 1100...THEN 4000-5000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000. GOOD AFTER 1400. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY(50-60%). MIN TEMPERATURE.....26. MAX HUMIDITY........59%. WIND (20 FT)........WEST 12-21 MPH WITH GUSTS TO AROUND 30 MPH. TRANSPORT WINDS.....WEST 5-16 MPH. MIXING HEIGHT.......2200-3200 FT AGL UNTIL 2100...THEN 800-1600 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .MARTIN LUTHER KING JR DAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1700. MAX TEMPERATURE.....40. MIN HUMIDITY........29%. WIND (20 FT)........WEST 14-21 MPH WITH GUSTS TO AROUND 30 MPH. TRANSPORT WINDS.....WEST 8-16 MPH. MIXING HEIGHT.......3600-4600 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1300...THEN FAIR UNTIL 1700...THEN POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 12 MPH WITH GUSTS TO AROUND 30 MPH. .WEDNESDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1800. LOWS IN THE LOWER 20S. HIGHS AROUND 30. WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND 20 MPH. .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1800. LOWS IN THE LOWER 20S. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .FRIDAY...CLOUDY. SLIGHT CHANCE OF SNOW. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR JAMES CREEK 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 01/16-18 63 0 36 35 W 3 1 763 W 15 9926 P 01/16-19 63 0 35 37 W 5 1 577 W 14 7139 P 01/16-20 63 0 34 38 W 7 10 4 1 W10 392 W 13 4353 P 01/16-21 63 0 33 39 W 7 1 345 W 12 3656 P 01/16-22 63 0 32 39 W 6 1 298 W 12 2959 P 01/16-23 63 0 31 41 W 6 9 4 1 W14 251 W 10 2262 P 01/17-00 63 0 31 41 W 6 1 248 W 10 2246 P 01/17-01 63 0 30 41 W 6 1 244 W 10 2231 P 01/17-02 63 0 30 41 W 6 10 3 1 W21 240 W 10 2215 P 01/17-03 63 0 29 40 W 8 1 245 W 12 2515 P 01/17-04 63 0 29 41 W 7 1 249 W 13 2815 P 01/17-05 70 0 29 42 W 10 20 3 1 W17 253 W 14 3115 P 01/17-06 70 0 29 42 W 12 1 346 W 14 4014 P 01/17-07 70 0 30 44 W 10 1 439 W 13 4913 P 01/17-08 70 0 31 42 W 10 10 3 1 SW21 531 W 13 5813 P 01/17-09 70 0 33 41 W 12 1 1631 W 15 25038 P 01/17-10 70 0 35 41 W 12 1 2731 W 17 44263 F 01/17-11 70 0 37 41 W 12 12 3 1 SW24 3830 W 20 63488 G 01/17-12 70 0 38 39 W 12 1 4290 W 21 75972 G 01/17-13 70 0 39 38 W 13 1 4749 W 21 88456 G 01/17-14 70 0 40 37 W 13 13 3 1 SW25 5209 W 22 100940 V 01/17-15 70 0 39 38 W 13 1 4746 W 23 93286 G 01/17-16 70 0 38 40 W 13 1 4283 W 23 85633 G 01/17-17 55 0 36 44 W 13 13 3 1 W17 3820 W 23 77979 G 01/17-18 55 0 34 47 W 13 1 3302 W 6 14042 P 01/17-19 55 0 33 50 W 14 1 2654 W 7 13550 P 01/17-20 55 0 32 53 W 15 24 3 1 SW 7 2006 W 8 13058 P 01/17-21 55 0 31 56 W 15 1 1686 W 8 11844 P 01/17-22 55 0 30 57 W 15 1 1367 W 9 10629 P 01/17-23 55 0 29 59 W 16 25 3 1 W 2 1047 W 10 9415 P 01/18-00 55 0 28 57 W 16 1 985 W 12 9308 P 01/18-01 55 0 28 55 W 16 1 922 W 12 9201 P 01/18-02 55 0 27 52 W 16 25 3 1 SW 3 859 W 13 9094 P 01/18-03 55 0 27 49 W 17 1 896 W 13 10022 P 01/18-04 55 0 27 46 W 17 1 932 W 14 10951 P 01/18-05 77 0 27 44 W 18 30 3 1 S 5 969 W 14 11879 P 01/18-06 77 0 27 42 W 18 1 1055 W 14 12384 P 01/18-07 77 0 27 41 W 18 1 1140 W 13 12888 P 01/18-08 77 0 29 37 W 18 30 2 1 S10 1226 W 13 13392 P 01/18-09 77 0 32 35 W 17 1 2103 W 12 19824 P 01/18-10 77 0 34 33 W 17 1 2981 W 10 26255 P 01/18-11 77 0 36 31 W 16 25 2 1 S16 3858 W 9 32686 P 01/18-12 77 0 38 29 W 16 1 4360 W 10 39200 P 01/18-13 77 0 39 29 W 16 1 4862 W 10 45713 F 01/18-14 77 0 39 29 W 16 25 2 1 SW21 5364 W 12 52227 F 01/18-15 77 0 39 31 W 17 1 4651 W 12 44827 F 01/18-16 77 0 37 35 W 17 1 3937 W 10 37428 P 01/18-17 60 10 34 42 W 18 30 2 1 W25 3224 W 10 30029 P 01/18-18 60 10 32 48 W 26 1 2491 W 12 23870 P 01/18-19 60 10 30 50 W 25 1 1758 W 13 17712 P 01/18-20 60 10 29 53 W 24 39 2 1 W24 1026 W 13 11553 P 01/18-21 60 10 27 55 W 22 1 824 W 14 9424 P 01/18-22 60 10 26 58 W 21 1 623 W 14 7295 P 01/18-23 60 10 25 61 W 18 30 2 1 W23 421 W 14 5165 P 01/19-00 60 10 24 65 W 18 1 369 W 15 4676 P 01/19-01 60 10 23 69 W 18 1 317 W 15 4187 P 01/19-02 60 10 23 74 W 18 30 2 1 W22 265 W 16 3698 P 01/19-03 60 10 22 77 W 17 1 260 W 15 3400 P 01/19-04 60 10 22 81 W 16 1 255 W 14 3103 P 01/19-05 82 10 22 77 W 14 22 3 1 SW20 249 W 13 2805 P 01/19-06 82 10 22 77 W 10 1 264 W 12 2681 P 01/19-07 82 10 22 75 W 10 1 278 W 10 2558 P 01/19-08 82 10 24 69 W 12 12 3 1 W20 292 W 9 2435 P 01/19-09 82 10 26 63 W 13 1 632 W 9 4944 P 01/19-10 82 10 28 57 W 13 1 971 W 9 7453 P 01/19-11 82 20 30 53 W 14 22 3 1 W18 1311 W 9 9963 P 01/19-12 82 20 31 50 W 13 1 1875 W 8 13857 P 01/19-13 82 20 32 49 W 10 1 2439 W 8 17752 P 01/19-14 82 20 33 49 W 9 9 3 1 SW15 3003 W 8 21647 P 01/19-15 82 20 32 51 W 7 1 2391 W 7 16322 P 01/19-16 82 20 31 54 W 6 1 1779 W 7 10996 P 01/19-17 71 20 30 55 W 6 6 3 1 SW12 1168 W 6 5670 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...ED LEBLANC REASON FOR REQUEST...PRESCRIBED .TAG 20100117.JAMES.01/BOU