FNUS75 KBOU 130053 FWSBOU SPOT FORECAST FOR LEFTHAND CANYON FIRE...USFS NATIONAL WEATHER SERVICE DENVER CO 550 PM MST SAT MAR 12 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WEAK UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE REGION TONIGHT RESULTING IN LIGHT SCATTERED RAIN SHOWERS...CHANGING TO SNOW SHOWERS LATER TONIGHT. AT THIS TIME...ANY SNOW ACCUMULATION WOULD BE UNDER A HALF INCH. THE DISTURBANCE WILL PASS EAST OF THE BURN LATE SUNDAY MORNING WITH CLEARING SKIES AND STRONGER NORTHWEST WINDS WITH GUSTS UP TO 20 MPH. EXPECT IMPROVING SMOKE DISPERSAL BY SUNDAY AFTERNOON. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS UNTIL 2100...THEN SCATTERED SNOW SHOWERS UNTIL 0500...THEN ISOLATED SNOW SHOWERS. MIN TEMPERATURE.....31. MAX HUMIDITY........71%. 20-FOOT WINDS.......EAST TO NORTHEAST 2-6 MPH UNTIL 2300...THEN DOWNSLOPE/DOWNVALLEY 2-6 MPH UNTIL 0200...THEN NORTHWEST 3-8 MPH. TRANSPORT WINDS.....NORTHEAST 8-12 MPH UNTIL 0200...THEN NORTHWEST 10-20 MPH. MIXING HEIGHT.......6000-7000 FT AGL UNTIL 2000. 1400-2400 FT AGL AFTER 2300. SMOKE DISPERSAL.....GOOD UNTIL 2000. POOR AFTER 2100. HAINES INDEX........3 VERY LOW. .SUNDAY... SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 1200...THEN PARTLY CLOUDY(35-45%). ISOLATED SNOW SHOWERS UNTIL 1700. ISOLATED RAIN SHOWERS AFTER 1100 UNTIL 1700. MAX TEMPERATURE.....52. MIN HUMIDITY........31%. 20-FOOT WINDS.......NORTHWEST 4-10 MPH UNTIL 1100...THEN NORTHWEST 10-20 MPH. TRANSPORT WINDS.....NORTHWEST 13-24 MPH. MIXING HEIGHT.......1600-2600 FT AGL UNTIL 1000...THEN 7600-8600 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN VERY GOOD UNTIL 1600...THEN GOOD UNTIL 1700...THEN FAIR. HAINES INDEX........4 LOW. .SUNDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY(30-40%). MIN TEMPERATURE.....31. MAX HUMIDITY........62%. 20-FOOT WINDS.......WEST WINDS 7-13 MPH. TRANSPORT WINDS.....WEST 5-16 MPH. MIXING HEIGHT.......5000 FT AGL UNTIL 1900...THEN 2600 FT AGL UNTIL 2000...THEN BELOW 1000 FT AGL UNTIL 2100...THEN 2000-3000 FT AGL UNTIL 2300...THEN 3800-4800 FT AGL UNTIL 0200...THEN 2200-3200 FT AGL UNTIL 0500...THEN 1400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 2300...THEN FAIR UNTIL 0300...THEN POOR. HAINES INDEX........4 LOW. .MONDAY... SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1200...THEN MOSTLY CLOUDY(50-60%). SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS AFTER 1700. MAX TEMPERATURE.....63. MIN HUMIDITY........19%. 20-FOOT WINDS.......WEST WINDS 7-13 MPH. GUSTS UP TO 20 MPH EARLY IN THE AFTERNOON. TRANSPORT WINDS.....WEST 13-24 MPH UNTIL 1200...THEN 28-36 MPH. MIXING HEIGHT.......4200-5200 FT AGL UNTIL 1100...THEN 8000-9000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0700. EXCELLENT AFTER 1400. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS UNTIL 0600. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. SOUTHWEST WINDS AROUND 7 MPH. .WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS AFTER 1800. LOWS IN THE MID 30S. HIGHS IN THE MID 60S. SOUTHWEST WINDS AROUND 11 MPH WITH GUSTS TO 20 MPH. .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS UNTIL 0600...THEN SLIGHT CHANCE OF RAIN UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. SOUTHWEST WINDS AROUND 7 MPH. .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1800. SLIGHT CHANCE OF RAIN AFTER 0600 UNTIL 1800. LOWS AROUND 30. HIGHS IN THE UPPER 50S. SOUTH WINDS AROUND 6 MPH. FIRE WEATHER TABLE FOR LEFTHAND CANYON FIRE. +++ 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 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 03/12-17 87 50 53 25 NE 2 2 2 1 W39 8265 W 14 96810 G 03/12-18 87 50 50 29 NE 2 1 7038 W 13 81331 G 03/12-19 76 50 47 35 NE 3 1 5811 SW 13 65852 G 03/12-20 76 50 43 41 E 3 3 2 1 W39 4584 SW 13 50373 F 03/12-21 76 50 41 46 E 2 1 3847 SW 12 39865 P 03/12-22 76 50 39 51 CALM 1 3110 SW 10 29357 P 03/12-23 84 46 37 55 CALM 1 2 1 W32 2373 SW 9 18850 P 03/13-00 84 46 36 58 W 3 1 2157 SW 10 19366 P 03/13-01 84 46 35 60 NW 6 1 1940 W 13 19883 P 03/13-02 84 46 34 62 NW 7 7 2 1 W44 1724 W 14 20400 P 03/13-03 84 46 33 66 NW 7 1 1532 W 13 17675 P 03/13-04 84 46 32 69 NW 6 1 1340 W 13 14950 P 03/13-05 70 20 32 71 NW 5 5 3 1 W45 1148 W 13 12225 P 03/13-06 70 20 32 70 NW 3 1 1166 W 13 12279 P 03/13-07 70 20 33 67 W 2 1 1185 W 12 12333 P 03/13-08 70 20 34 63 W 2 2 3 1 W33 1203 W 12 12386 P 03/13-09 51 20 37 55 NW 2 1 3040 W 17 59798 F 03/13-10 51 20 42 45 NW 2 1 4876 W 22 107210 V 03/13-11 51 10 46 38 NW 3 3 2 1 W35 6713 W 26 154622 E 03/13-12 51 10 49 35 NW 5 1 7486 NW 23 147281 V 03/13-13 41 10 50 32 W 6 1 8259 NW 20 139941 V 03/13-14 41 10 51 31 W 7 7 4 1 NW32 9032 NW 17 132600 V 03/13-15 41 10 51 32 W 7 1 8521 NW 14 107435 V 03/13-16 41 10 51 32 W 7 1 8010 NW 12 82270 G 03/13-17 35 0 50 33 W 6 6 4 1 NW26 7499 NW 9 57105 F 03/13-18 35 0 47 36 W 6 1 5060 W 7 38320 P 03/13-19 35 0 43 40 W 5 1 2620 W 6 19534 P 03/13-20 35 0 31 62 SW 5 5 4 1 NW26 181 W 5 749 P 03/13-21 35 0 46 33 SW 6 1 1730 W 7 16365 P 03/13-22 35 0 47 31 SW 8 1 3279 W 9 31981 P 03/13-23 30 0 46 31 SW 9 15 3 1 NW25 4828 W 12 47597 F 03/14-00 30 0 46 29 SW 9 1 4282 W 13 45979 F 03/14-01 30 0 45 30 W 8 1 3736 W 14 44362 F 03/14-02 30 0 43 31 W 7 7 4 1 W23 3190 W 15 42744 F 03/14-03 30 0 42 31 W 7 1 2623 W 14 32976 P 03/14-04 30 0 42 30 W 6 1 2056 W 12 23208 P 03/14-05 41 5 42 31 W 6 6 3 1 W20 1488 W 10 13440 P 03/14-06 41 5 41 32 W 6 1 2307 W 14 32468 P 03/14-07 41 5 42 33 W 5 1 3126 W 17 51495 F 03/14-08 41 5 49 25 W 5 5 2 1 W28 3945 W 21 70523 G 03/14-09 41 5 53 23 W 5 1 4914 W 22 95543 G 03/14-10 41 5 55 22 SW 6 1 5882 W 23 120562 V 03/14-11 51 5 57 22 SW 7 7 2 1 W30 6851 W 24 145582 V 03/14-12 51 5 58 21 SW 8 1 7678 W 28 188905 E 03/14-13 51 5 60 20 W 10 1 8505 W 31 232229 E 03/14-14 51 5 61 20 W 12 18 2 1 W36 9332 W 35 275552 E 03/14-15 51 5 63 19 W 12 1 9176 W 36 280114 E 03/14-16 51 5 62 20 W 12 1 9020 W 37 284675 E 03/14-17 60 10 59 22 W 10 16 2 1 W39 8864 W 38 289237 E 03/14-18 60 10 55 26 W 10 1 5970 W 30 193565 E 03/14-19 60 10 52 30 W 10 1 3076 W 22 97893 G 03/14-20 60 10 34 60 W 10 16 2 1 W54 182 W 14 2222 P 03/14-21 60 10 45 42 W 10 1 1159 W 20 29792 P 03/14-22 60 10 45 43 W 12 1 2137 W 25 57363 F 03/14-23 34 10 45 44 W 12 18 2 1 W51 3114 W 31 84934 G 03/15-00 34 10 45 44 W 12 1 3025 W 35 90054 G 03/15-01 34 10 44 45 W 10 1 2935 W 38 95174 G 03/15-02 34 10 43 46 W 9 15 3 1 W35 2845 W 40 100294 V 03/15-03 34 10 43 46 W 8 1 2637 W 38 89043 G 03/15-04 34 10 42 46 W 8 1 2428 W 37 77793 G 03/15-05 40 0 42 45 W 7 7 5 1 W41 2220 W 35 66542 G 03/15-06 40 0 42 47 W 7 1 2493 W 32 68377 G 03/15-07 40 0 42 46 SW 7 1 2766 W 30 70212 G 03/15-08 40 0 47 38 SW 7 7 5 1 W46 3038 W 28 72047 G 03/15-09 40 0 50 34 SW 7 1 3946 W 26 87382 G 03/15-10 40 0 51 33 SW 7 1 4853 W 25 102718 V 03/15-11 30 0 52 31 S 7 7 3 1 W39 5761 W 23 118054 V 03/15-12 30 0 53 30 S 6 1 6703 W 21 112033 V 03/15-13 30 0 55 29 SW 6 1 7645 W 17 106012 V 03/15-14 30 0 55 28 SW 5 5 3 1 W32 8587 W 14 99992 G 03/15-15 30 0 56 27 SW 3 1 8047 W 13 87620 G 03/15-16 30 0 56 28 SW 3 1 7507 SW 12 75249 G 03/15-17 35 0 54 30 SW 3 3 4 1 SW26 6967 SW 10 62877 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/ENTREKIN REQUESTED BY...MATT LEBLANC REASON FOR REQUEST...WILDFIRE .TAG 20110312.LEFTH.04/BOU