FNUS75 KBOU 201459 FWSBOU SPOT FORECAST FOR DEVILS THUMB...USFS NATIONAL WEATHER SERVICE DENVER CO 645 AM MDT TUE JUL 20 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A COLD FRONT MOVED ACROSS NORTHEAST COLORADO LAST NIGHT. THIS WILL BRING COOLER TEMPERATURES AND SIGNIFICANTLY HIGHER HUMIDITIES TODAY. THE INCREASED MOISTURE IN THE ATMOSPHERE WILL PROVIDE HIGHER SHOWER AND THUNDERSTORM COVERAGE THIS AFTERNOON AND EVENING. A FEW MORNING SHOWERS WILL EVEN BE POSSIBLE AS A PLUME OF MID LEVEL MOISTURE MOVES OVER THE FORECAST AREA. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS UNTIL 1200...THEN SCATTERED THUNDERSTORMS. MAX TEMPERATURE.....74-78. MIN HUMIDITY........34-39%. WIND (20 FT)........NORTHEAST-EAST 4-8 MPH UNTIL 1200...THEN SOUTHEAST-SOUTH 5-10 MPH. TRANSPORT WINDS.....LIGHT WINDS UNTIL 1200...THEN SOUTHWEST AROUND 12 MPH. MIXING HEIGHT.......5600-6600 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1500...THEN FAIR. HAINES INDEX........4 LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS UNTIL 2400...THEN SLIGHT CHANCE OF THUNDERSTORMS. MIN TEMPERATURE.....55-60. MAX HUMIDITY........60-65%. WIND (20 FT)........SOUTHWEST WINDS 6-12 MPH. TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH UNTIL 2400...THEN LIGHT. MIXING HEIGHT.......4600-5600 FT AGL UNTIL 2000. SMOKE DISPERSAL.....FAIR UNTIL 1900. POOR AFTER 2000. HAINES INDEX........4 LOW. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE LOWER 60S. HIGHS AROUND 80. WEST WINDS AROUND 14 MPH WITH GUSTS TO 35 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE LOWER 60S. HIGHS IN THE UPPER 70S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 80S. EAST WINDS AROUND 9 MPH WITH GUSTS TO 20 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR DEVILS THUMB. +++ 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 07/20-06 61 10 61 54 NW 9 14 4 1 W36 145 NW 8 1089 P 07/20-07 61 10 62 53 NW 9 1 492 NW 8 2558 P 07/20-08 61 10 64 50 NW 8 1 839 NW 7 4028 P 07/20-09 64 10 67 47 NW 8 8 4 1 W15 1186 NW 6 5497 P 07/20-10 64 10 69 44 W 7 1 2318 W 5 9772 P 07/20-11 64 10 72 41 SW 7 1 3449 W 5 14048 P 07/20-12 64 41 74 39 SW 7 7 4 4 SW14 4581 SW 5 18323 P 07/20-13 64 41 75 39 SW 8 4 5366 SW 6 26598 P 07/20-14 64 41 76 38 SW 9 4 6150 SW 6 34874 P 07/20-15 71 41 76 39 W 10 16 4 4 SW23 6935 SW 7 43149 F 07/20-16 71 41 76 40 SW 9 4 6475 SW 8 47367 F 07/20-17 71 41 75 41 S 8 4 6015 SW 10 51584 F 07/20-18 74 43 73 43 SE 7 7 3 4 W24 5555 SW 12 55802 F 07/20-19 74 43 71 46 S 8 4 4566 SW 10 43782 F 07/20-20 74 43 69 48 S 10 4 3578 SW 9 31762 P 07/20-21 74 43 67 50 SW 12 17 4 4 W21 2589 SW 9 19742 P 07/20-22 74 43 65 51 SW 12 4 2240 SW 8 16145 P 07/20-23 74 43 65 51 S 12 4 1890 S 7 12548 P 07/21-00 60 15 64 51 S 12 17 3 3 SW13 1541 S 7 8951 P 07/21-01 60 15 63 53 S 12 3 1393 S 7 8221 P 07/21-02 60 15 62 54 SW 12 3 1246 S 7 7490 P 07/21-03 60 15 61 56 SW 12 17 3 3 W12 1099 SW 7 6759 P 07/21-04 60 15 61 58 SW 12 3 872 SW 7 5102 P 07/21-05 60 15 60 60 SW 10 3 644 SW 6 3444 P 07/21-06 60 10 60 60 SW 10 16 4 2 SW 9 417 W 5 1787 P 07/21-07 60 10 62 56 SW 10 2 711 W 5 3281 P 07/21-08 60 10 64 51 W 9 2 1004 W 6 4774 P 07/21-09 60 10 67 44 W 9 14 4 2 SW12 1298 W 6 6268 P 07/21-10 60 10 70 44 W 9 2 2516 W 7 18883 P 07/21-11 60 10 73 46 W 9 2 3733 W 9 31498 P 07/21-12 74 50 75 48 W 10 16 4 4 SW14 4951 W 10 44114 F 07/21-13 74 50 76 47 W 10 4 5432 W 12 55175 F 07/21-14 74 50 76 46 W 10 4 5914 W 13 66236 G 07/21-15 74 50 76 45 W 10 16 3 4 SW21 6395 W 14 77297 G 07/21-16 74 50 75 45 W 10 4 4589 W 12 53317 F 07/21-17 74 50 74 45 W 9 4 2782 W 9 29338 P 07/21-18 74 42 73 47 W 8 13 3 4 W20 976 NW 6 5359 P 07/21-19 74 42 71 50 NW 6 4 1586 W 6 6892 P 07/21-20 74 42 70 54 N 5 4 2197 SW 5 8425 P 07/21-21 74 42 68 57 N 3 3 3 4 W24 2807 SW 5 9959 P 07/21-22 74 42 67 55 N 5 4 1972 SW 5 7057 P 07/21-23 74 42 66 52 W 6 4 1137 W 5 4156 P 07/22-00 48 7 65 49 SW 8 13 3 1 W13 301 W 5 1254 P 07/22-01 48 7 65 48 SW 8 1 273 W 6 1386 P 07/22-02 48 7 64 48 SW 9 1 244 W 8 1519 P 07/22-03 48 7 64 48 W 10 16 3 1 W16 215 W 9 1651 P 07/22-04 48 7 63 47 W 14 1 199 W 13 2011 P 07/22-05 48 7 63 47 W 18 1 184 W 15 2371 P 07/22-06 48 7 63 47 W 22 35 5 1 W17 168 W 18 2731 P 07/22-07 48 7 64 45 W 22 1 258 W 18 4026 P 07/22-08 48 7 66 42 W 20 1 348 W 17 5321 P 07/22-09 48 7 69 39 W 18 30 4 1 W17 438 W 17 6616 P 07/22-10 48 7 72 35 W 18 1 2212 W 17 34213 P 07/22-11 48 7 75 31 W 18 1 3986 W 17 61809 G 07/22-12 64 10 77 29 W 18 30 5 2 W15 5760 W 18 89406 G 07/22-13 64 10 78 28 W 15 2 6451 W 16 86223 G 07/22-14 64 10 79 27 W 12 2 7141 W 14 83041 G 07/22-15 64 10 79 27 W 9 15 4 2 W16 7832 W 12 79858 G 07/22-16 64 10 78 28 W 9 2 5503 W 12 55584 F 07/22-17 64 10 77 29 NW 9 2 3174 W 10 31310 P 07/22-18 64 10 75 30 NW 10 16 4 2 NW 6 846 NW 9 7035 P 07/22-19 64 10 73 31 NW 12 2 634 NW 10 5386 P 07/22-20 64 10 71 32 NW 13 2 422 NW 10 3737 P 07/22-21 64 10 69 34 NW 13 21 5 2 W 3 210 NW 12 2088 P 07/22-22 64 10 68 37 NW 13 2 229 NW 10 2010 P 07/22-23 64 10 67 40 N 12 2 248 NW 9 1932 P 07/23-00 31 0 66 44 N 10 16 5 1 SW13 267 NW 8 1854 P 07/23-01 31 0 65 47 N 9 1 273 NW 7 1707 P 07/23-02 31 0 64 49 N 8 1 279 NW 7 1561 P 07/23-03 31 0 63 50 NW 7 7 5 1 W15 286 NW 6 1414 P 07/23-04 31 0 63 50 NW 7 1 306 NW 6 1616 P 07/23-05 31 0 62 49 NW 8 1 327 W 7 1819 P 07/23-06 31 0 62 48 W 8 13 5 1 NW10 348 W 7 2021 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 $$ FORECASTER...WFO BOULDER REQUESTED BY...ZADER DAVE REASON FOR REQUEST...WILDFIRE .TAG 20100720.DEVIL.01/BOU