FNUS75 KBOU 062116 FWSBOU SPOT FORECAST FOR RANCH TRAIL FIRE...USFS NATIONAL WEATHER SERVICE DENVER CO 315 PM MDT SUN SEP 6 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...SCATTERED SHOWERS ALONG WITH AN ISOLATED THUNDERSTORM WILL BE POSSIBLE THROUGH 2100. RAINFALL AMOUNTS WILL BE UNDER A TENTH OF AN INCH. TEMPERATURES WILL BE IN THE 60S ALTHOUGH READINGS MAY BRIEFLY DROP INTO THE UPPER 50S AS SHOWERS MOVE ACROSS. WINDS WILL BE LIGHT IN THE 5-10 MPH RANGE EXCEPT NEAR SHOWERS WHERE GUSTS UP TO 20 MPH MAY OCCUR. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF THIS AFTERNOON... SKY/WEATHER.........CLOUDY. SCATTERED SHOWERS WITH AN ISOLATED THUNDERSTORM. MAX TEMPERATURE.....70. MIN HUMIDITY........35-45%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....NORTHWEST 5-12 MPH. MIXING HEIGHT.......8600-9600 FT AGL. SMOKE DISPERSAL.....FAIR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........CLOUDY UNTIL 2400...THEN PARTLY CLOUDY(50-60%). SCATTERED RAIN SHOWERS UNTIL 2100. ISOLATED THUNDERSTORMS UNTIL 1900. MIN TEMPERATURE.....48. MAX HUMIDITY........71%. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 2-8 MPH UNTIL 2100...THEN WEST 8-14 MPH. TRANSPORT WINDS.....WEST 5-12 MPH. MIXING HEIGHT.......8200 FT AGL UNTIL 1900. 200-1200 FT AGL AFTER 2300. SMOKE DISPERSAL.....FAIR UNTIL 1900. POOR AFTER 2000. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .LABOR DAY... SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1200...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200 UNTIL 1500...THEN CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....74. MIN HUMIDITY........27%. 20-FOOT WINDS.......NORTHWEST 8-14 MPH WITH GUSTS TO AROUND 20 MPH UNTIL 1200...THEN UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....WEST 8-16 MPH. MIXING HEIGHT.......1600-2600 FT AGL UNTIL 1000. 8800-9800 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 0800. GOOD AFTER 1000. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. NORTHWEST WINDS AROUND 9 MPH WITH GUSTS TO AROUND 20 MPH. .WEDNESDAY...PARTLY CLOUDY. CHANCE OF THUNDERSTORMS UNTIL 0600... THEN SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .THURSDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE LOWER 40S. HIGHS AROUND 70. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR RANCH TRAIL FIRE. +++ 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 09/06-15 85 52 69 36 NE 3 3 2 4 W13 9667 NW 7 60147 G 09/06-16 85 52 69 36 E 2 4 9155 NW 7 57146 F 09/06-17 85 52 68 37 S 2 4 8644 NW 7 54146 F 09/06-18 87 46 68 38 SW 2 2 2 2 W14 8132 W 7 51145 F 09/06-19 87 46 65 43 SW 3 2 6462 W 7 40375 F 09/06-20 87 46 62 50 W 5 2 4792 W 7 29605 P 09/06-21 77 22 60 55 W 6 6 2 3 W16 3122 W 7 18835 P 09/06-22 77 22 58 60 W 7 3 2209 W 7 13493 P 09/06-23 77 22 57 64 W 9 3 1296 W 8 8151 P 09/07-00 58 3 54 69 W 10 10 2 1 W14 382 W 8 2808 P 09/07-01 58 3 53 71 W 12 1 326 W 9 2603 P 09/07-02 58 3 51 70 W 13 1 270 W 10 2397 P 09/07-03 48 2 50 69 W 13 13 2 1 NW15 214 W 12 2191 P 09/07-04 48 2 50 68 W 14 1 209 W 12 2174 P 09/07-05 48 2 50 67 W 14 1 203 W 13 2158 P 09/07-06 38 0 50 66 W 14 22 2 1 NW18 198 W 13 2141 P 09/07-07 38 0 51 62 W 12 1 1206 W 14 17386 P 09/07-08 38 0 55 52 W 10 1 2215 NW 16 32631 P 09/07-09 38 0 60 43 W 8 8 2 1 N17 3223 NW 17 47877 F 09/07-10 38 0 65 37 NW 7 1 4946 NW 15 61032 G 09/07-11 38 0 67 33 N 7 1 6669 NW 14 74187 G 09/07-12 63 25 70 30 N 7 7 2 3 NW 9 8392 NW 12 87342 G 09/07-13 63 25 71 29 NE 6 3 8896 NW 10 80118 G 09/07-14 63 25 72 27 NE 6 3 9400 W 9 72894 G 09/07-15 63 30 73 27 E 6 6 2 4 W 7 9904 W 8 65670 G 09/07-16 63 30 73 27 E 6 4 9572 W 8 62865 G 09/07-17 63 30 71 28 S 6 4 9240 W 7 60060 G 09/07-18 63 30 71 28 W 5 5 2 4 W12 8908 W 7 57254 F 09/07-19 63 30 67 33 W 5 4 6125 W 7 39004 P 09/07-20 63 30 64 38 W 5 4 3342 W 6 20753 P 09/07-21 63 30 61 43 W 6 6 2 4 SW 9 558 W 5 2503 P 09/07-22 63 30 60 47 W 7 4 453 W 6 2214 P 09/07-23 63 30 58 51 W 8 4 348 W 7 1925 P 09/08-00 57 0 55 57 W 9 9 2 1 SW15 243 W 8 1636 P 09/08-01 57 0 53 62 W 10 1 216 W 9 1627 P 09/08-02 57 0 51 65 W 12 1 190 W 10 1617 P 09/08-03 57 0 50 68 W 13 13 2 1 W15 163 W 12 1608 P 09/08-04 57 0 50 68 W 14 1 163 W 12 1696 P 09/08-05 57 0 49 67 W 14 1 163 W 13 1785 P 09/08-06 57 0 49 67 W 14 22 2 1 W13 163 W 13 1874 P 09/08-07 57 0 51 62 W 14 1 948 W 14 13231 P 09/08-08 57 0 55 52 W 13 1 1732 W 15 24588 P 09/08-09 57 0 60 43 W 12 12 2 1 W10 2516 W 16 35945 P 09/08-10 57 0 65 36 W 10 1 4731 W 13 42043 F 09/08-11 57 0 68 33 NW 9 1 6946 NW 10 48142 F 09/08-12 62 40 70 30 NW 8 8 3 4 W 7 9161 NW 7 54240 F 09/08-13 62 40 72 29 N 7 4 10134 NW 6 53634 F 09/08-14 62 40 73 28 N 6 4 11108 NW 6 53028 F 09/08-15 62 40 74 28 N 5 5 3 4 NW 6 12082 N 5 52423 F 09/08-16 62 40 73 29 N 5 4 10952 N 6 50730 F 09/08-17 62 40 72 32 N 5 4 9822 N 6 49038 F 09/08-18 62 40 71 33 NW 5 5 3 4 N 7 8692 N 6 47345 F 09/08-19 62 40 67 38 NW 6 4 5898 NW 7 32265 P 09/08-20 62 40 62 44 NW 8 4 3103 NW 7 17184 P 09/08-21 62 40 59 48 W 9 9 3 4 NW 6 309 NW 8 2103 P 09/08-22 62 40 57 51 W 9 4 261 NW 8 1790 P 09/08-23 62 40 55 54 W 9 4 213 NW 8 1476 P 09/09-00 53 40 52 61 W 8 8 3 4 W 3 165 NW 8 1163 P 09/09-01 53 40 49 65 W 7 4 167 NW 7 939 P 09/09-02 53 40 47 67 NW 5 4 170 NW 5 714 P 09/09-03 53 40 46 68 NW 3 3 3 4 SW10 173 NW 3 490 P 09/09-04 53 40 45 69 W 3 4 193 NW 3 562 P 09/09-05 53 40 45 68 W 3 4 213 NW 3 634 P 09/09-06 53 20 45 67 W 3 3 3 3 W13 233 W 3 706 P 09/09-07 53 20 47 63 NW 2 3 653 W 3 1929 P 09/09-08 53 20 50 57 CALM 3 1074 W 3 3153 P 09/09-09 53 20 54 49 CALM 1 3 3 W 9 1494 W 3 4376 P 09/09-10 53 20 59 43 E 2 3 2739 W 3 7494 P 09/09-11 53 20 61 40 E 3 3 3984 W 3 10612 P 09/09-12 53 20 63 38 E 5 5 3 3 W10 5229 SW 3 13730 P 09/09-13 53 20 65 36 E 6 3 5545 SW 2 13084 P 09/09-14 53 20 66 36 E 7 3 5862 S 2 12439 P 09/09-15 53 20 66 35 E 8 8 3 3 W12 6178 S 2 11793 P 09/09-16 53 20 66 36 E 8 3 5994 S 2 13589 P 09/09-17 53 20 65 38 SE 6 3 5810 SW 3 15385 P 09/09-18 53 10 64 39 S 5 5 3 2 NW20 5626 W 3 17181 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...DISPATCH REASON FOR REQUEST...WILDFIRE .TAG 20090906.RANCH.01/BOU