FNUS75 KBOU 250036 FWSBOU SPOT FORECAST FOR WALKER RANCH...USFS NATIONAL WEATHER SERVICE DENVER CO 635 PM MDT SAT OCT 24 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...MOISTURE IN NORTHWEST FLOW COMBINED WITH A DISTURBANCE WILL PRODUCE A GOOD CHANCE OF SNOW BY 1200 ON SUNDAY. ACCUMULATIONS WILL BE AROUND AN INCH. AT THIS TIME IT LOOKS LIKE SMOKE DISPERSAL WILL BE POOR MUCH OF THE DAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS UNTIL 2400...THEN CHANCE OF SNOW. MIN TEMPERATURE.....29. MAX HUMIDITY........82%. 20-FOOT WINDS.......WEST 14-20 MPH WITH GUSTS TO AROUND 30 MPH UNTIL 2400...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH. TRANSPORT WINDS.....NORTHWEST 17-28 MPH UNTIL 2400...THEN SOUTHWEST 4-8 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.........CLOUDY. CHANCE OF SNOW UNTIL 1200...THEN SNOW LIKELY. MAX TEMPERATURE.....35. MIN HUMIDITY........60%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....SOUTH 4-8 MPH UNTIL 1200...THEN WEST 5-12 MPH. MIXING HEIGHT.......2800-3800 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY NIGHT... SKY/WEATHER.........CLOUDY UNTIL 2400...THEN PARTLY CLOUDY(35-45%). CHANCE OF SNOW UNTIL 2400. MIN TEMPERATURE.....18. MAX HUMIDITY........77%. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 2-8 MPH UNTIL 0300...THEN WEST 8-13 MPH. TRANSPORT WINDS.....NORTHWEST 4-12 MPH. MIXING HEIGHT.......1800-2800 FT AGL UNTIL 2200...THEN 200-1200 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .MONDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY(35-45%). MAX TEMPERATURE.....47. MIN HUMIDITY........32%. 20-FOOT WINDS.......WEST 8-12 MPH UNTIL 0900...THEN UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1500...THEN SOUTHWEST 8-13 MPH. TRANSPORT WINDS.....NORTHWEST 13-24 MPH. MIXING HEIGHT.......2200-3200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1300...THEN FAIR UNTIL 1500...THEN GOOD UNTIL 1600...THEN FAIR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1800. SLIGHT CHANCE OF RAIN AFTER 1200 UNTIL 1800...THEN CHANCE OF SNOW. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. WEST WINDS AROUND 14 MPH WITH GUSTS TO AROUND 30 MPH. .WEDNESDAY...CLOUDY. CHANCE OF SNOW UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. COLDER. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 30S. NORTH WINDS AROUND 12 MPH WITH GUSTS TO AROUND 20 MPH. .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND 20 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 40S. WEST WINDS AROUND 8 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR WALKER RANCH. +++ 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 10/24-18 71 20 45 47 W 20 31 3 1 NW30 759 W 38 24891 P 10/24-19 71 20 41 55 W 17 1 592 W 32 18231 P 10/24-20 71 20 38 61 W 14 1 425 W 28 11572 P 10/24-21 71 20 37 65 W 12 12 4 1 W25 258 W 22 4912 P 10/24-22 71 20 36 69 W 8 1 256 NW 15 3469 P 10/24-23 71 20 35 71 W 6 1 253 NW 9 2027 P 10/25-00 90 50 34 75 W 3 3 3 1 W18 251 N 2 584 P 10/25-01 90 50 33 77 W 2 1 291 NW 2 584 P 10/25-02 90 50 32 78 S 2 1 332 SW 2 585 P 10/25-03 90 50 32 80 SE 2 2 2 1 W28 372 S 2 585 P 10/25-04 90 50 31 81 SE 2 1 386 S 2 680 P 10/25-05 90 50 31 82 SE 2 1 401 S 2 775 P 10/25-06 86 26 30 69 E 3 3 2 1 NW23 415 S 2 870 P 10/25-07 86 26 31 67 E 5 1 716 S 2 1697 P 10/25-08 86 26 30 68 E 5 1 1018 S 2 2523 P 10/25-09 86 26 32 64 E 6 6 2 1 NW31 1319 S 3 3350 P 10/25-10 86 26 33 63 E 7 1 2046 S 5 8664 P 10/25-11 86 26 34 64 E 7 1 2773 SW 6 13978 P 10/25-12 89 60 35 65 NE 7 7 2 1 W32 3500 W 7 19292 P 10/25-13 89 60 35 64 E 7 1 3610 W 7 22893 P 10/25-14 89 60 35 62 E 6 1 3720 W 8 26494 P 10/25-15 89 60 35 61 E 5 5 2 1 W36 3830 W 9 30095 P 10/25-16 89 60 35 60 E 5 1 3619 NW 9 27370 P 10/25-17 89 60 34 60 NE 3 1 3409 NW 8 24645 P 10/25-18 84 34 31 64 NE 3 3 3 1 W35 3198 N 8 21921 P 10/25-19 84 34 28 71 NE 3 1 2156 N 9 15788 P 10/25-20 84 34 26 74 N 2 1 1877 N 10 16711 P 10/25-21 84 34 25 77 N 2 2 3 1 W39 1598 N 13 17634 P 10/25-22 84 34 24 77 NW 2 1 1170 N 10 12208 P 10/25-23 84 34 23 74 NW 2 1 743 N 8 6782 P 10/26-00 42 3 23 73 W 2 2 2 1 W32 315 NW 5 1357 P 10/26-01 42 3 22 71 W 3 1 308 NW 5 1341 P 10/26-02 42 3 21 69 W 5 1 302 W 5 1325 P 10/26-03 42 3 21 69 W 6 6 2 1 N26 296 W 5 1309 P 10/26-04 42 3 20 70 W 8 1 270 W 7 1516 P 10/26-05 42 3 20 74 W 9 1 245 W 8 1723 P 10/26-06 18 0 20 76 W 12 12 3 1 N38 220 W 10 1930 P 10/26-07 18 0 21 76 W 6 1 306 W 12 3130 P 10/26-08 18 0 23 71 W 6 1 392 W 13 4330 P 10/26-09 18 0 26 65 W 7 7 4 1 N51 478 W 14 5530 P 10/26-10 18 0 30 57 W 7 1 1138 W 14 14813 P 10/26-11 18 0 35 48 SW 6 1 1798 NW 15 24097 P 10/26-12 40 0 40 40 SW 6 6 3 1 N41 2458 NW 16 33381 P 10/26-13 40 0 43 37 SW 6 1 2819 NW 17 43795 F 10/26-14 40 0 45 34 SW 6 1 3180 NW 20 54210 F 10/26-15 40 0 46 33 SW 7 7 2 1 NW37 3541 NW 21 64624 G 10/26-16 40 0 46 32 SW 7 1 2906 NW 22 54610 F 10/26-17 40 0 45 33 SW 8 1 2271 W 23 44595 F 10/26-18 67 0 44 33 SW 9 9 2 1 NW29 1635 W 24 34580 P 10/26-19 67 0 38 42 W 13 1 1172 W 24 24856 P 10/26-20 67 0 36 47 W 16 1 709 W 25 15132 P 10/26-21 67 0 35 50 W 20 31 2 1 NW32 246 W 25 5408 P 10/26-22 67 0 34 50 W 21 1 227 W 25 5009 P 10/26-23 67 0 34 49 W 20 1 208 W 25 4610 P 10/27-00 67 10 34 47 W 20 31 2 1 NW31 188 W 25 4211 P 10/27-01 67 10 33 47 W 20 1 182 W 25 4073 P 10/27-02 67 10 33 47 W 20 1 176 W 25 3936 P 10/27-03 67 10 33 46 W 20 31 3 1 W33 170 W 25 3798 P 10/27-04 67 10 33 45 W 18 1 165 W 25 3643 P 10/27-05 67 10 33 43 W 17 1 161 W 25 3488 P 10/27-06 83 18 33 43 W 16 25 3 1 W54 156 W 24 3333 P 10/27-07 83 18 33 45 W 15 1 181 W 25 3942 P 10/27-08 83 18 34 46 W 15 1 205 W 25 4551 P 10/27-09 83 18 36 47 W 15 24 3 1 W54 230 W 25 5160 P 10/27-10 83 18 38 46 W 15 1 284 W 23 5350 P 10/27-11 83 18 40 44 W 15 1 338 W 20 5540 P 10/27-12 83 20 42 41 W 15 24 2 1 W66 392 W 17 5730 P 10/27-13 83 20 44 40 W 14 1 630 W 16 8268 P 10/27-14 83 20 45 38 W 13 1 868 W 15 10806 P 10/27-15 83 20 45 39 W 12 12 2 1 SW56 1107 W 14 13344 P 10/27-16 83 20 44 41 W 10 1 829 W 15 10136 P 10/27-17 83 20 42 44 W 9 1 551 W 15 6928 P 10/27-18 92 40 40 51 W 8 8 2 1 SW31 273 W 16 3719 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 $$ WFO BOULDER REQUESTED BY...1592 STALNACKER REASON FOR REQUEST...PRESCRIBED .TAG 20091025.WALKE.01/BOU