FNUS75 KBOU 161200 FWSBOU SPOT FORECAST FOR LEFTHAND CANYON FIRE...USFS NATIONAL WEATHER SERVICE DENVER CO 557 AM MDT WED MAR 16 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING... ...RED FLAG WARNING IN EFFECT FROM 6 AM TO 8 PM MDT THURSDAY... .DISCUSSION...GUSTY WEST WINDS...LOW HUMIDITY AND DRY FUELS WILL CREATE VERY HIGH FIRE DANGER FROM NOON THROUGH 8 PM THIS EVENING. FIRE DANGER WILL REMAIN ELEVATED ON THURSDAY AS WELL. WEST WINDS OF 20 TO 30 MPH WITH WIND GUSTS TO 45 MPH WILL BE POSSIBLE THIS AFTERNOON INTO THE EARLY EVENING HOURS WITH HUMIDITY LEVELS DROPPING DOWN TO 10-15 PERCENT. NO RAIN IS EXPECTED TODAY OR TONIGHT BUT THERE MAY BE A BETTER CHANCE OF PRECIPITATION THURSDAY NIGHT INTO EARLY FRIDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%). MAX TEMPERATURE.....68. MIN HUMIDITY........10-15%. 20-FOOT WINDS.......WINDY. WEST WINDS 20-30 MPH WITH GUSTS TO 45 MPH. TRANSPORT WINDS.....WEST 28-36 MPH UNTIL 1200...THEN 36-48 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000. 7200-8200 FT AGL AFTER 1500. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1100...THEN VERY GOOD UNTIL 1300...THEN EXCELLENT. HAINES INDEX........5 MODERATE. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY(50-60%). MIN TEMPERATURE.....39. MAX HUMIDITY........44%. 20-FOOT WINDS.......BREEZY. WEST WINDS 18-28 MPH WITH GUSTS TO 40 MPH. TRANSPORT WINDS.....WEST 40-48 MPH UNTIL 2400...THEN AROUND 36 MPH. MIXING HEIGHT.......6400 FT AGL UNTIL 1900. BELOW 1000 FT AGL AFTER 2300. SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. POOR AFTER 2400. HAINES INDEX........3 VERY LOW. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY UNTIL 1500...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AFTER 1500. MAX TEMPERATURE.....67. MIN HUMIDITY........20%. 20-FOOT WINDS.......WEST WINDS 15-22 MPH WITH GUSTS TO 35 MPH UNTIL 0900...THEN SOUTHWEST 14-20 MPH WITH GUSTS TO 30 MPH. TRANSPORT WINDS.....WEST 36-48 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700. 7600-8600 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 0800...THEN FAIR UNTIL 0900...THEN GOOD UNTIL 1000...THEN VERY GOOD UNTIL 1100...THEN EXCELLENT. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 0600...THEN SLIGHT CHANCE OF SNOW UNTIL 1200. COOLER. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. SOUTHEAST WINDS AROUND 6 MPH. .SATURDAY...PARTLY CLOUDY. WARMER. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 7 MPH. .SUNDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 8 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 03/16-05 48 0 36 54 W 25 1 170 W 28 4118 P 03/16-06 44 0 36 54 W 25 40 5 1 W23 161 W 28 3818 P 03/16-07 44 0 37 52 W 24 1 220 W 29 5747 P 03/16-08 44 0 40 45 W 24 1 279 W 31 7677 P 03/16-09 44 0 45 37 W 24 39 5 1 W26 339 W 32 9607 P 03/16-10 44 0 50 30 W 26 1 1834 W 33 55642 F 03/16-11 44 0 54 25 W 30 1 3329 W 35 101677 V 03/16-12 48 1 58 21 W 32 52 4 1 W31 4824 W 36 147712 V 03/16-13 48 1 61 18 W 32 1 6043 W 39 215193 E 03/16-14 48 1 64 17 W 31 1 7261 W 44 282674 E 03/16-15 48 1 65 16 W 29 46 2 1 W49 8480 W 47 350156 E 03/16-16 48 1 64 16 W 25 1 7762 W 48 321906 E 03/16-17 48 1 63 17 W 21 1 7043 W 48 293656 E 03/16-18 62 1 61 18 W 17 28 2 1 W47 6325 W 48 265407 E 03/16-19 62 1 59 20 W 16 1 4895 W 47 203013 E 03/16-20 62 1 55 23 W 17 1 3466 W 46 140619 V 03/16-21 62 1 51 28 W 18 30 3 1 W35 2037 W 44 78226 G 03/16-22 62 1 48 32 W 20 1 1467 W 41 55558 F 03/16-23 62 1 46 35 W 22 1 898 W 39 32889 P 03/17-00 62 4 45 38 W 23 37 3 1 W55 328 W 36 10221 P 03/17-01 62 4 43 41 W 24 1 312 W 36 9676 P 03/17-02 62 4 42 42 W 25 1 297 W 36 9130 P 03/17-03 62 4 41 44 W 25 40 3 1 W71 281 W 36 8585 P 03/17-04 62 4 41 44 W 25 1 296 W 36 9168 P 03/17-05 62 4 41 44 W 24 1 310 W 36 9752 P 03/17-06 30 0 41 44 W 22 35 3 1 W78 324 W 37 10335 P 03/17-07 30 0 42 43 W 18 1 1090 W 36 33765 P 03/17-08 30 0 44 41 W 15 1 1855 W 36 57196 F 03/17-09 30 0 48 36 W 10 16 2 1 W75 2621 W 36 80626 G 03/17-10 30 0 52 30 W 8 1 4074 W 38 144050 V 03/17-11 30 0 56 25 SW 7 1 5527 W 41 207473 E 03/17-12 30 0 60 22 SW 7 7 2 1 W77 6979 W 45 270897 E 03/17-13 30 0 62 20 SW 10 1 7757 W 44 297595 E 03/17-14 30 0 64 20 SW 15 1 8535 W 44 324293 E 03/17-15 71 20 65 20 W 18 30 2 1 W63 9313 W 44 350992 E 03/17-16 71 20 64 20 W 18 1 8187 W 41 296562 E 03/17-17 71 20 62 22 W 16 1 7061 W 39 242133 E 03/17-18 92 60 57 25 W 14 22 2 1 W55 5934 W 37 187703 E 03/17-19 92 60 54 29 SW 12 1 4577 SW 26 129273 V 03/17-20 92 60 49 36 SE 9 1 3220 SW 17 70842 G 03/17-21 92 60 44 46 E 7 7 2 1 SW49 1862 SW 8 12411 P 03/17-22 92 60 40 54 E 5 1 1482 SW 7 9515 P 03/17-23 92 60 37 60 E 3 1 1102 S 7 6618 P 03/18-00 91 50 35 64 E 3 3 2 1 SW51 722 S 6 3722 P 03/18-01 91 50 33 67 E 5 1 684 S 6 3351 P 03/18-02 91 50 31 67 E 6 1 646 S 6 2979 P 03/18-03 91 50 30 68 E 7 7 2 1 W64 607 S 5 2608 P 03/18-04 91 50 29 69 E 7 1 826 SW 6 5047 P 03/18-05 91 50 30 69 E 6 1 1044 W 8 7485 P 03/18-06 56 10 30 69 E 5 5 2 1 SW54 1262 W 9 9923 P 03/18-07 56 10 31 69 E 5 1 1672 W 9 13814 P 03/18-08 56 10 31 73 SE 5 1 2082 W 9 17705 P 03/18-09 56 10 34 67 S 5 5 2 1 W56 2492 W 10 21596 P 03/18-10 56 10 37 60 S 5 1 3191 W 13 39166 P 03/18-11 56 10 41 53 SE 6 1 3890 W 16 56736 F 03/18-12 32 0 43 47 SE 6 6 2 1 SW49 4589 SW 18 74306 G 03/18-13 32 0 45 43 SE 6 1 4791 SW 18 78280 G 03/18-14 32 0 47 40 S 6 1 4994 SW 18 82255 G 03/18-15 32 0 47 38 S 6 6 2 1 SW53 5196 SW 20 86230 G 03/18-16 32 0 47 37 S 7 1 4952 SW 17 76854 G 03/18-17 32 0 46 37 S 8 1 4709 SW 16 67479 G 03/18-18 39 0 45 38 S 9 9 2 1 SW49 4465 SW 15 58104 F 03/18-19 39 0 44 40 S 8 1 3803 SW 14 47205 F 03/18-20 39 0 42 43 S 6 1 3141 S 13 36306 P 03/18-21 39 0 39 46 SW 5 5 2 1 SW44 2479 S 12 25407 P 03/18-22 39 0 38 49 SW 5 1 1935 S 10 19150 P 03/18-23 39 0 37 51 W 6 1 1391 SW 10 12893 P 03/19-00 39 0 36 53 W 7 7 3 1 SW49 847 SW 9 6635 P 03/19-01 39 0 35 57 W 7 1 680 SW 8 5019 P 03/19-02 39 0 34 60 W 6 1 514 SW 7 3403 P 03/19-03 39 0 34 65 W 6 6 3 1 SW33 347 W 6 1787 P 03/19-04 39 0 34 69 NW 6 1 339 W 6 1786 P 03/19-05 39 0 34 73 NW 6 1 331 W 6 1785 P 03/19-06 17 0 34 76 NW 6 6 3 1 SW31 323 W 7 1783 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...CHAD BUSER REASON FOR REQUEST...WILDFIRE .TAG 20110316.LEFTH.01/BOU