FNUS75 KBOU 312342 FWSBOU SPOT FORECAST FOR RFB 16 17 18 20...USFS NATIONAL WEATHER SERVICE DENVER CO 536 PM MDT MON OCT 31 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE AREA TUESDAY NIGHT AND WEDNESDAY WITH A RETURN TO SNOW AND COLDER TEMPERATURES. THE SNOW AND RAIN WILL BEGIN TO DEVELOP LATE TUESDAY AFTERNOON..THEN RAPIDLY CHANGING TO ALL SNOW IN THE EVENING BEFORE ENDING BY WEDNESDAY AFTERNOON. SNOW ACCUMULATIONS WILL BE 7 TO 12 INCHES. DRIER AND A BIT WARMER AGAIN BY THURSDAY AS HIGH PRESSURE BUILDS OVER THE AREA. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....33. MAX HUMIDITY........51%. 20-FOOT WINDS.......WEST WINDS 12-21 MPH WITH GUSTS TO 30 MPH. TRANSPORT WINDS.....WEST 25-36 MPH UNTIL 2400...THEN 13-24 MPH. MIXING HEIGHT.......3600-4400 FT AGL UNTIL 2000. BELOW 1000 FT AGL AFTER 2400. SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2200. HAINES INDEX........4 LOW. .TUESDAY... SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1200...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW AFTER 1200 UNTIL 1500...THEN CHANCE OF SNOW. MAX TEMPERATURE.....45. MIN HUMIDITY........43%. 20-FOOT WINDS.......WEST WINDS 6-12 MPH WITH GUSTS TO 20 MPH UNTIL 1200...THEN SOUTH 6-7 MPH. TRANSPORT WINDS.....SOUTHWEST 5-16 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000...THEN 2000-3000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1500...THEN FAIR UNTIL 1600...THEN POOR. HAINES INDEX........3 VERY LOW. .TUESDAY NIGHT... SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2100. SNOW AFTER 2100. AREAS OF BLOWING SNOW AFTER 2100 UNTIL 2400. MIN TEMPERATURE.....21. MAX HUMIDITY........85%. 20-FOOT WINDS.......NORTHWEST WINDS 6-7 MPH UNTIL 2100...THEN NORTH 11-17 MPH WITH GUSTS TO 25 MPH. TRANSPORT WINDS.....NORTHWEST 8-12 MPH UNTIL 2400...THEN NORTHEAST 12-20 MPH. MIXING HEIGHT.......1200-2200 FT AGL UNTIL 2100. 2800-3200 FT AGL AFTER 0400. SMOKE DISPERSAL.....POOR UNTIL 0400. FAIR AFTER 0500. HAINES INDEX........3 VERY LOW. .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SNOW UNTIL 1200...THEN SLIGHT CHANCE OF SNOW. MAX TEMPERATURE.....28. MIN HUMIDITY........56%. 20-FOOT WINDS.......NORTH WINDS 8-14 MPH WITH GUSTS TO 20 MPH UNTIL 1200...THEN UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....NORTHEAST 8-16 MPH UNTIL 1200...THEN NORTHWEST AROUND 4 MPH. MIXING HEIGHT.......2600-3600 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 0700. POOR AFTER 0900. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...MOSTLY CLEAR. NOT AS COOL. LOWS AROUND 16. HIGHS IN THE LOWER 40S. WEST WINDS AROUND 8 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1200 UNTIL 1800...THEN CHANCE OF RAIN AND SNOW. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS AROUND 8 MPH WITH GUSTS TO 20 MPH. .SATURDAY...MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. COLDER. LOWS IN THE MID 20S. HIGHS IN THE UPPER 20S. WEST WINDS AROUND 11 MPH WITH GUSTS TO 20 MPH. .SUNDAY...PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 8 MPH. FIRE WEATHER TABLE FOR RFB 16 17 18 20. +++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE FORECAST DATABASE. VALUES IN THE TABLE MAY VARY SLIGHTLY FROM INFORMATION IN THE NARRATIVE FORECAST. PLEASE PROVIDE FEEDBACK IF THE INFORMATION IN THIS TABLE HAS BEEN REPRESENTATIVE AND/OR USEFUL. +++ FORECAST SC PP WR AT 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 10/31-17 21 0 0 53 23 W18 30 4 1 W23 4549 W33 130839 V 10/31-18 21 0 0 54 22 W18 30 4 1 W22 4447 W35 133973 V 10/31-19 21 0 0 51 24 W18 29 4 1 W20 3607 W32 104260 V 10/31-20 21 0 0 48 27 W17 28 3 1 W18 2767 W30 74547 G 10/31-21 21 0 0 45 30 W16 26 3 1 W17 1927 W26 44834 F 10/31-22 21 0 0 43 33 W16 25 3 1 W17 1489 W26 34314 P 10/31-23 21 0 0 41 35 W16 25 2 1 W20 1051 W25 23794 P 11/01-00 21 0 0 40 38 W15 25 2 1 W22 613 W25 13274 P 11/01-01 21 0 0 39 39 W15 24 2 1 W23 527 W22 10483 P 11/01-02 21 0 0 38 40 W14 23 2 1 W24 440 W18 7692 P 11/01-03 23 0 0 37 41 W14 22 2 1 W26 354 W16 4901 P 11/01-04 23 0 0 37 43 W13 21 2 1 W28 331 W15 4203 P 11/01-05 23 0 0 36 46 W13 20 2 1 W29 307 W13 3504 P 11/01-06 34 0 0 35 49 W12 18 2 1 W31 284 W12 2806 P 11/01-07 34 0 0 36 50 W 8 14 2 1 W35 400 W 9 2595 P 11/01-08 34 0 0 36 51 W 6 6 2 1 W39 515 SW 7 2384 P 11/01-09 47 0 0 37 51 W 3 3 2 1 W43 631 SW 3 2173 P 11/01-10 47 0 0 38 51 W 5 5 2 1 W44 1220 SW 7 10889 P 11/01-11 47 0 0 40 49 S 6 6 2 1 W45 1809 SW10 19605 P 11/01-12 63 23 5 42 48 S 7 7 2 1 W46 2398 SW14 28321 P 11/01-13 63 23 5 43 47 S 7 7 2 1 W49 2579 SW15 33161 P 11/01-14 63 23 5 43 47 SE 7 7 3 1 W52 2761 SW16 38002 P 11/01-15 74 37 15 43 48 SE 6 6 3 1 W53 2943 SW17 42842 F 11/01-16 74 37 15 42 52 S 5 5 3 1 W51 2340 SW14 31294 P 11/01-17 74 37 15 39 59 W 2 2 3 1 W47 1736 SW12 19746 P 11/01-18 95 82 71 37 66 W 2 2 3 1 W45 1133 SW 8 8198 P 11/01-19 95 82 71 35 69 NW 3 3 3 1 SW46 1690 W 9 15152 P 11/01-20 95 82 71 34 70 N 7 7 3 1 SW47 2247 NW10 22107 P 11/01-21 95 80 68 33 71 NE10 16 3 1 SW51 2804 N12 29062 P 11/01-22 95 80 68 32 73 NE13 20 3 1 SW33 1378 E10 12182 P 11/01-23 95 80 68 31 75 NE14 22 3 1 SW29 1177 NE12 11680 P 11/02-00 100 80 68 29 78 N15 24 3 1 SW25 975 NE13 11179 P 11/02-01 100 80 68 28 81 N15 24 3 1 SW23 1356 NE14 16622 P 11/02-02 100 80 68 27 84 N15 24 2 1 S22 1736 NE14 22065 P 11/02-03 100 80 68 25 85 N15 24 2 1 S21 2116 NE15 27508 P 11/02-04 100 80 68 24 85 N15 23 2 1 S20 2704 NE16 40104 F 11/02-05 100 80 68 23 84 N14 22 2 1 S17 3293 NE18 52700 F 11/02-06 99 80 68 23 83 N13 21 2 1 S16 3881 NE20 65296 G 11/02-07 99 80 68 22 84 N12 18 2 1 S12 3577 NE16 52788 F 11/02-08 99 80 68 22 85 N10 16 2 1 W 8 3274 N14 40279 F 11/02-09 99 80 68 22 84 N 8 13 2 1 W 6 2970 N10 27770 P 11/02-10 99 80 68 22 79 N 6 6 2 1 W 9 3120 N 8 22443 P 11/02-11 99 80 68 23 72 N 3 3 2 1 NW15 3269 N 6 17116 P 11/02-12 69 23 5 24 66 N 2 2 2 1 N20 3419 N 3 11788 P 11/02-13 69 23 5 26 61 CALM 1 2 1 N22 3359 N 3 11032 P 11/02-14 69 23 5 27 57 CALM 1 2 1 N23 3299 NW 3 10276 P 11/02-15 69 23 5 27 56 CALM 1 2 1 N24 3239 NW 3 9520 P 11/02-16 69 23 5 27 57 W 2 2 2 1 N25 2746 W 5 9524 P 11/02-17 69 23 5 26 60 SW 3 3 2 1 N26 2253 W 6 9527 P 11/02-18 30 7 1 25 61 SW 5 5 2 1 N28 1759 SW 6 9531 P 11/02-19 30 7 1 24 61 SW 6 6 2 1 N26 1345 SW 7 7477 P 11/02-20 30 7 1 23 59 W 7 7 3 1 N25 931 SW 7 5423 P 11/02-21 30 7 1 23 57 W 8 13 3 1 NW24 516 W 8 3368 P 11/02-22 30 7 1 22 55 W 8 14 3 1 NW23 432 W 8 2854 P 11/02-23 30 7 1 21 53 W 9 14 4 1 NW22 347 W 8 2340 P 11/03-00 14 0 0 21 51 W 9 15 4 1 NW21 263 W 8 1825 P 11/03-01 14 0 0 20 49 W 9 16 4 1 NW21 227 W 8 1620 P 11/03-02 14 0 0 20 48 W10 16 4 1 NW21 192 W 8 1414 P 11/03-03 14 0 0 19 47 SW10 16 4 1 W22 156 W 9 1209 P 11/03-04 14 0 0 19 45 W10 16 4 1 W22 142 W 9 1096 P 11/03-05 14 0 0 18 44 W10 16 4 1 W22 128 W 9 983 P 11/03-06 14 0 0 18 45 W 9 15 4 1 W22 113 W 9 870 P 11/03-07 14 0 0 18 48 W 8 14 4 1 W21 127 W 8 892 P 11/03-08 14 0 0 19 52 W 8 13 4 1 W21 140 W 8 914 P 11/03-09 14 0 0 20 57 W 7 7 4 1 W20 154 W 7 936 P 11/03-10 14 0 0 22 59 W 6 6 4 1 SW18 184 W 7 983 P 11/03-11 14 0 0 25 58 W 5 5 4 1 SW17 214 W 6 1030 P 11/03-12 13 0 0 29 55 W 5 5 4 1 SW17 245 W 5 1077 P 11/03-13 13 0 0 33 49 W 5 5 4 1 SW20 387 W 6 2042 P 11/03-14 13 0 0 36 42 W 5 5 4 1 SW22 529 W 6 3008 P 11/03-15 13 0 0 38 39 W 6 6 4 1 SW24 671 W 7 3973 P 11/03-16 13 0 0 38 39 W 7 7 4 1 SW26 523 W 7 3147 P 11/03-17 13 0 0 36 42 W 7 7 4 1 W29 376 W 7 2322 P 11/03-18 14 0 0 34 44 W 8 13 4 1 W30 228 W 8 1496 P KEY: FORECAST - MONTH/DAY-HOUR OF FORECAST /24-HOUR CLOCK LOCAL TIME/ VALID AT SC - SKY COVER /PERCENT/ PP - PROBABILITY OF PRECIPITATION 0.01 INCH /PERCENT/ WR - PROBABILITY OF WETTING RAIN 0.1 INCH /PERCENT/ AT - 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 20111101.RFB16.01/BOU