FNUS75 KBOU 202221 FWSBOU SPOT FORECAST FOR 11 MILE SP...USFS NATIONAL WEATHER SERVICE DENVER CO 400 PM MDT TUE APR 20 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN RIDGE OF HIGH PRESSURE WILL BE OVER EASTERN COLORADO WITH A WEST TO SOUTHWESTERLY FLOW ALOFT OVER THE BURN AREA. THE AIRMASS WILL REMAIN RELATIVELY MOIST WITH ENOUGH INSTABILITY IN THE AFTERNOON AND EVENING FOR A CHANCE OF SHOWERS OR THUNDERSTORMS. SOUTHEASTERLY FLOW IN THE LOWER LEVELS IS EXPECTED TO INCREASE WEDNESDAY NIGHT...WITH AN INCREASE IN LOW LEVEL MOISTURE ALONG WITH A BETTER CHANCE OF SHOWERS. THE PATTERN WILL REMAIN MOIST AND UNSETTLED INTO THURSDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS OR THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....54-59. MIN HUMIDITY........27-32%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1200...THEN SOUTH 11-17 MPH. TRANSPORT WINDS.....SOUTHWEST 13-24 MPH. MIXING HEIGHT.......6800-7800 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR...BECOMING VERY GOOD AFTER 1200. HAINES INDEX........2 VERY LOW. .WEDNESDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS UNTIL 2400...THEN CHANCE OF RAIN SHOWERS. MIN TEMPERATURE.....29-33. MAX HUMIDITY........90-94%. WIND (20 FT)........SOUTHEAST WINDS 12-22 MPH WITH GUSTS TO AROUND 30 MPH UNTIL 2400...THEN 6-12 MPH. TRANSPORT WINDS.....SOUTH 17-28 MPH. MIXING HEIGHT.......5800-6800 FT AGL UNTIL 2000. SMOKE DISPERSAL.....VERY GOOD UNTIL 2000. POOR AFTER 0100. HAINES INDEX........2 VERY LOW. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS UNTIL 1200...THEN CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....48-52. MIN HUMIDITY........32-37%. WIND (20 FT)........SOUTH WINDS 12-19 MPH. GUSTS UP TO 30 MPH LATE IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 12-20 MPH. MIXING HEIGHT.......6600-7600 FT AGL AFTER 1100. SMOKE DISPERSAL.....POOR UNTIL 1000. VERY GOOD AFTER 1400. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS UNTIL 0600...THEN CHANCE OF SNOW SHOWERS UNTIL 1800...THEN CHANCE OF SNOW. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. NORTHWEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH. .SATURDAY...MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 0600...THEN SLIGHT CHANCE OF SNOW. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. NORTHWEST WINDS AROUND 11 MPH. .SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600...THEN SLIGHT CHANCE OF SNOW AFTER 1800. LOWS IN THE MID 20S. HIGHS AROUND 50. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. SLIGHT CHANCE OF RAIN AFTER 0600. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR 11 MILE SP. +++ 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 04/20-15 77 30 55 21 W 2 2 3 4 W 8 10660 W 8 73887 G 04/20-16 69 30 54 25 W 2 6 4 8981 W 7 56365 F 04/20-17 61 30 52 29 NW 3 5 4 7302 NW 6 38844 P 04/20-18 57 30 51 33 N 3 3 3 4 W14 5623 NW 5 21322 P 04/20-19 57 30 48 36 NW 3 4 4247 NW 5 16415 P 04/20-20 57 30 45 39 NW 5 4 2871 NE 5 11507 P 04/20-21 51 30 42 42 NW 5 5 2 4 W18 1496 E 5 6599 P 04/20-22 51 30 39 47 N 3 4 1101 E 5 4710 P 04/20-23 51 30 36 52 N 3 4 707 E 3 2821 P 04/21-00 38 0 34 58 NE 2 2 2 1 W20 312 SE 3 932 P 04/21-01 38 0 32 62 N 2 1 288 SE 5 999 P 04/21-02 38 0 31 66 W 3 1 264 S 5 1066 P 04/21-03 35 0 30 68 SW 5 5 2 1 W25 240 S 6 1133 P 04/21-04 35 0 30 66 SW 3 1 296 SW 5 1223 P 04/21-05 35 0 30 63 W 3 1 352 SW 5 1313 P 04/21-06 72 0 32 58 NW 2 2 2 1 W31 407 SW 3 1402 P 04/21-07 72 0 35 52 W 2 1 1348 SW 6 10543 P 04/21-08 72 0 39 47 W 2 1 2288 SW 8 19684 P 04/21-09 72 0 44 41 SW 2 2 2 1 W29 3228 SW 10 28825 P 04/21-10 72 0 49 36 SW 3 1 4722 SW 14 64948 G 04/21-11 72 0 53 32 S 6 1 6216 SW 17 101071 V 04/21-12 80 30 56 30 S 8 8 2 4 SW25 7710 SW 21 137194 V 04/21-13 80 30 57 29 S 9 4 7452 SW 22 141536 V 04/21-14 80 30 57 29 S 10 4 7194 SW 23 145879 V 04/21-15 80 30 56 32 S 12 12 2 4 SW36 6936 SW 25 150222 E 04/21-16 80 30 54 38 S 15 4 6916 SW 24 148627 V 04/21-17 80 30 52 47 S 17 4 6897 S 24 147031 V 04/21-18 80 36 56 45 S 20 31 2 4 SW26 6877 S 24 145436 V 04/21-19 80 36 52 53 S 20 4 5889 S 25 127275 V 04/21-20 80 36 48 61 SE 17 4 4900 S 26 109115 V 04/21-21 80 36 45 65 SE 15 24 2 4 SW37 3912 S 26 90954 G 04/21-22 80 36 43 69 SE 13 4 3266 SE 26 76288 G 04/21-23 80 36 42 72 SE 12 4 2620 SE 28 61625 G 04/22-00 80 36 40 76 SE 10 10 2 1 S49 1975 SE 28 46963 F 04/22-01 80 36 38 81 SE 10 1 1511 SE 24 34074 P 04/22-02 80 36 37 85 SE 10 1 1048 S 20 21185 P 04/22-03 80 36 35 89 SE 10 10 2 1 S41 585 S 16 8296 P 04/22-04 80 36 35 89 S 9 1 514 S 15 6813 P 04/22-05 80 36 34 92 S 9 1 444 S 14 5331 P 04/22-06 80 36 33 94 S 8 8 2 1 S46 373 S 12 3849 P 04/22-07 80 36 33 96 S 7 1 925 S 13 11923 P 04/22-08 80 36 35 90 S 7 1 1476 S 15 19997 P 04/22-09 80 36 38 79 S 7 7 2 1 S51 2028 S 16 28071 P 04/22-10 80 36 42 66 S 8 1 3262 S 17 52429 F 04/22-11 80 36 45 54 S 10 1 4497 S 18 76788 G 04/22-12 73 30 47 46 S 13 13 2 4 S58 5731 S 21 101147 V 04/22-13 73 30 49 41 S 15 4 6356 S 21 116643 V 04/22-14 73 30 50 39 S 18 4 6980 S 22 132140 V 04/22-15 73 30 50 38 S 18 30 2 4 S48 7605 S 22 147636 V 04/22-16 73 30 50 38 S 16 4 7575 S 21 136769 V 04/22-17 73 30 51 37 S 12 4 7544 S 20 125902 V 04/22-18 73 30 49 39 S 7 7 2 4 S29 7513 S 17 115035 V 04/22-19 73 30 46 45 SW 5 4 6701 S 17 98690 G 04/22-20 73 30 42 52 SW 3 4 5889 SW 16 82345 G 04/22-21 73 30 39 58 W 2 2 2 4 S37 5077 SW 15 66000 G 04/22-22 73 30 37 60 NW 2 4 4011 W 10 45316 F 04/22-23 73 30 36 61 NW 2 4 2945 NW 7 24632 P 04/23-00 63 20 34 64 N 2 2 2 1 S25 1878 NW 2 3948 P 04/23-01 63 20 33 68 CALM 1 1626 N 2 3688 P 04/23-02 63 20 31 71 CALM 1 1374 NE 3 3429 P 04/23-03 63 20 30 75 CALM 1 3 1 S10 1122 E 3 3170 P 04/23-04 63 20 29 76 NE 2 1 1123 NE 5 4528 P 04/23-05 63 20 28 78 NW 3 1 1123 N 6 5887 P 04/23-06 63 25 28 78 NW 6 6 3 1 N17 1123 NW 7 7245 P 04/23-07 63 25 28 76 NW 8 1 2033 NW 12 27983 P 04/23-08 63 25 30 68 NW 12 1 2943 NW 16 48720 F 04/23-09 63 25 32 59 NW 14 22 2 1 N17 3853 NW 21 69458 G 04/23-10 63 25 35 52 NW 14 1 4468 NW 20 72286 G 04/23-11 63 25 38 46 NW 14 1 5084 NW 17 75114 G 04/23-12 73 25 41 43 NW 14 22 2 1 W 7 5700 NW 16 77943 G 04/23-13 73 25 42 42 NW 15 1 5954 NW 16 86469 G 04/23-14 73 25 43 41 NW 15 1 6208 NW 17 94995 G 04/23-15 73 25 44 42 NW 16 25 2 1 W20 6462 NW 18 103521 V 04/23-16 73 25 44 43 NW 16 1 6525 NW 18 101663 V 04/23-17 73 25 44 42 NW 16 1 6588 NW 17 99805 G 04/23-18 73 25 43 44 NW 15 24 2 1 NW17 6650 NW 17 97946 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 REQUESTED BY...LARRY LONG REASON FOR REQUEST...PRESCRIBED .TAG 20100421.11MIL.01/BOU