FNUS75 KBOU 190321 FWSBOU SPOT FORECAST FOR BUTTON ROCK...USFS NATIONAL WEATHER SERVICE DENVER CO 915 PM MDT TUE AUG 18 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...TYPICAL DRAINAGE WINDS ARE EXPECTED OVERNIGHT WITH RELATIVELY DRY CONDITIONS ON THE RIDGES AND MID SLOPES. WEDNESDAY LOOKS LIKE A DRY DAY WITH SOME AFTERNOON CLOUD DEVELOPMENT BUT ONLY A VERY LOW THREAT OF ANY SHOWER ACTIVITY. WINDS MAY TURN MORE NORTH OR NORTHEAST IN THE MID TO LATE AFTERNOON...BUT WILL GENERALLY BE LIGHT. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....50-56. MAX HUMIDITY........37-45%. 20-FOOT WINDS.......WEST 4-10 MPH. RIDGETOP WEST 15-20 MPH. TRANSPORT WINDS.....WEST 20 MPH DECREASING TO 10 MPH. MIXING HEIGHT.......4000 FT AGL UNTIL 2200...LOWERING TO 500 FT AGL AFTER 2400. SMOKE DISPERSAL.....GOOD UNTIL 2200. POOR AFTER 2400. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY... SKY/WEATHER.........SUNNY UNTIL 1200...THEN PARTLY CLOUDY(30-40%). MAX TEMPERATURE.....70-75. MIN HUMIDITY........20-25%. 20-FOOT WINDS.......NORTHWEST 8-16 MPH BECOMING NORTH. RIDGETOP WINDS SIMILAR. TRANSPORT WINDS.....NORTHWEST 20 MPH. MIXING HEIGHT.......RISING TO 3000 FT AGL BY 0900 AN 10000 FT AGL BY 1200. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN GOOD...THEN EXCELLENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY. MIN TEMPERATURE.....50-55. MAX HUMIDITY........45-55%. 20-FOOT WINDS.......NORTH 8-16 MPH UNTIL 2400...THEN DOWNSLOPE/ DOWNVALLEY 2-8 MPH. RIDGETOP WINDS LIGHT. TRANSPORT WINDS.....NORTH 5 MPH BECOMING WEST. MIXING HEIGHT.......9000 FT AGL LOWERING TO 2000-3000 FT AGL AFTER 2100. SMOKE DISPERSAL.....GOOD UNTIL 2000...THEN POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....67-72. MIN HUMIDITY........30-35%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1500...THEN NORTHEAST 8-13 MPH. RIDGETOP LIGHT BECOMING NORTHEAST 10 MPH. TRANSPORT WINDS.....NORTHWEST 10-20 MPH. MIXING HEIGHT.......3000 FT AGL RISING TO 5000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1100...THEN GOOD. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. EXPERIMENTAL FIRE WEATHER TABLE FOR BUTTON ROCK. +++ 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 08/18-20 40 1 63 36 W 10 1 4811 W 20 79995 G 08/18-21 29 1 61 37 W 12 12 3 1 N 9 3729 W 21 65866 G 08/18-22 29 0 59 37 W 12 1 2565 W 17 44676 F 08/18-23 29 0 57 39 W 12 1 1401 W 14 23485 P 08/19-00 14 0 55 46 W 12 12 5 1 W20 236 W 12 2295 P 08/19-01 14 0 53 49 W 10 1 204 W 10 1897 P 08/19-02 14 0 52 51 W 10 1 171 W 10 1499 P 08/19-03 14 0 51 51 W 9 9 3 1 W30 138 W 9 1100 P 08/19-04 14 0 51 48 W 8 1 147 W 9 1186 P 08/19-05 14 0 50 46 W 8 1 156 W 9 1271 P 08/19-06 8 0 51 49 W 8 8 3 1 NW28 166 W 9 1357 P 08/19-07 8 0 51 49 W 7 1 1626 W 13 24330 P 08/19-08 8 0 55 46 W 7 1 3086 W 15 47303 F 08/19-09 8 0 58 42 W 7 7 2 1 NW18 4546 W 17 70276 G 08/19-10 8 0 61 37 W 7 1 6113 NW 18 98270 G 08/19-11 8 0 63 34 NW 8 1 7680 NW 18 126263 V 08/19-12 37 5 65 31 NW 8 8 2 1 NW20 9246 NW 20 154256 E 08/19-13 37 5 66 31 NW 9 1 9780 NW 18 156306 E 08/19-14 37 5 67 31 NW 9 1 10313 NW 17 158357 E 08/19-15 37 5 68 31 NW 9 9 2 1 NW23 10847 NW 17 160407 E 08/19-16 37 5 68 32 NW 10 1 10341 NW 16 145144 V 08/19-17 37 5 67 34 NW 12 1 9835 NW 15 129881 V 08/19-18 36 5 66 36 NW 13 13 3 1 NW22 9329 NW 14 114618 V 08/19-19 36 5 64 36 NW 13 1 7798 NW 17 120944 V 08/19-20 36 5 62 40 NW 13 1 5437 NW 15 78711 G 08/19-21 36 5 59 44 NW 12 12 2 1 NW36 3076 NW 14 36477 P 08/19-22 36 5 59 47 N 8 1 2639 NW 10 25436 P 08/19-23 36 5 57 51 N 5 1 2202 W 6 14394 P 08/20-00 28 5 55 55 CALM 1 2 1 NW40 1765 W 2 3352 P 08/20-01 28 5 52 60 CALM 1 1968 W 2 4055 P 08/20-02 28 5 50 62 NE 2 1 2172 SW 2 4759 P 08/20-03 28 5 49 63 E 3 3 2 1 NW48 2376 SW 2 5463 P 08/20-04 28 5 49 62 NE 3 1 2133 W 5 6927 P 08/20-05 28 5 49 62 NW 5 1 1890 W 6 8392 P 08/20-06 28 5 49 61 NW 5 5 2 1 NW51 1648 NW 7 9856 P 08/20-07 28 5 50 58 NW 5 1 2704 NW 10 32194 P 08/20-08 28 5 53 52 NW 5 1 3760 NW 15 54531 F 08/20-09 28 5 56 46 N 5 5 2 1 N53 4816 NW 18 76869 G 08/20-10 28 5 59 42 N 5 1 5333 NW 18 83437 G 08/20-11 28 5 61 39 NE 5 1 5850 NW 17 90006 G 08/20-12 16 0 63 38 NE 5 5 2 1 N47 6367 NW 17 96575 G 08/20-13 16 0 65 36 NE 6 1 6336 NW 16 88398 G 08/20-14 16 0 65 36 NE 6 1 6305 NW 15 80221 G 08/20-15 16 0 66 36 NE 7 7 2 1 N44 6274 NW 13 72044 G 08/20-16 16 0 66 37 NE 8 1 5772 NW 13 62571 G 08/20-17 16 0 65 38 NE 8 1 5270 NW 12 53098 F 08/20-18 16 0 64 40 NE 8 8 2 1 N39 4769 NW 10 43624 F 08/20-19 16 0 62 43 NE 7 1 3513 N 9 30503 P 08/20-20 16 0 59 48 E 6 1 2258 N 7 17383 P 08/20-21 16 0 57 51 E 5 5 2 1 N35 1003 N 5 4262 P 08/20-22 16 0 55 53 E 3 1 745 N 5 3014 P 08/20-23 16 0 53 56 E 2 1 487 NW 3 1767 P 08/21-00 10 0 50 60 CALM 1 3 1 N29 229 W 2 519 P 08/21-01 10 0 48 64 CALM 1 202 W 3 502 P 08/21-02 10 0 46 66 CALM 1 175 W 3 484 P 08/21-03 10 0 46 67 CALM 1 3 1 N24 148 W 3 466 P 08/21-04 10 0 45 66 N 2 1 140 W 3 461 P 08/21-05 10 0 45 66 NW 2 1 132 NW 3 456 P 08/21-06 10 0 45 65 W 3 3 4 1 N26 124 NW 5 451 P 08/21-07 10 0 46 62 NW 3 1 365 NW 5 1462 P 08/21-08 10 0 52 50 N 5 1 607 NW 5 2473 P 08/21-09 10 0 57 42 N 5 5 4 1 N23 849 NW 5 3483 P 08/21-10 10 0 62 36 NE 5 1 2133 NW 6 10908 P 08/21-11 10 0 65 33 E 6 1 3418 NW 6 18333 P 08/21-12 23 0 67 31 E 6 6 3 1 N21 4702 NW 6 25758 P 08/21-13 23 0 69 29 E 6 1 5024 NW 6 24828 P 08/21-14 23 0 70 28 SE 6 1 5346 W 6 23898 P 08/21-15 23 0 71 27 S 6 6 3 1 NW20 5667 W 5 22968 P 08/21-16 23 0 71 27 S 6 1 5346 W 5 21430 P 08/21-17 23 0 71 28 SW 6 1 5025 W 5 19892 P 08/21-18 23 0 70 28 W 6 6 3 1 NW20 4705 SW 5 18353 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...GIMMESTAD REQUESTED BY...GARY BATCHELDER REASON FOR REQUEST...WILDFIRE .TAG 20090818.BUTTO.04/BOU