FNUS75 KBOU 120810 FWSBOU SPOT FORECAST FOR COW CREEK...NPS NATIONAL WEATHER SERVICE DENVER CO 200 AM MDT SUN SEP 12 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE REMAINS OVER THE AREA. WESTERLY FLOW ALOFT WILL BECOME LIGHTER THIS AFTERNOON. THIS WILL ALLOW UPSLOPE FLOW TO DEVELOP IN THE LOWER ELEVATIONS OF THE FIRE. VERY DRY AIR ALOFT WILL MIX TO THE SURFACE AGAIN THIS AFTERNOON...IT WILL BE SLIGHTLY WARMER/DRIER THAN YESTERDAY. LITTLE CHANGE IS EXPECTED FOR SEVERAL DAYS...THOUGH THERE WILL BE A SLIGHT MOISTENING TREND BY MIDWEEK. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........SUNNY UNTIL 1200...THEN PARTLY CLOUDY(35-45%). MAX TEMPERATURE.....62-68. MIN HUMIDITY........10-13%. 20-FOOT WINDS.......WEST WINDS 10-15 MPH. GUSTS UP TO 25 MPH IN THE MORNING. BECOMING SOUTHEAST 4-8 MPH AT LOWER ELEVATIONS AFTER 1400. TRANSPORT WINDS.....WEST 12-20 MPH. MIXING HEIGHT.......RISING TO 3000 FT AGL BY 1000 AND 8000 FT AGL BY 1200. SMOKE DISPERSAL.....POOR UNTIL 1000. VERY GOOD AFTER 1200. HAINES INDEX........4 LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....40-46. MAX HUMIDITY........28-34%. 20-FOOT WINDS.......SOUTHWEST WINDS 6-12 MPH. TRANSPORT WINDS.....SOUTHWEST 12-16 MPH. MIXING HEIGHT.......LOWERING TO 3000 FT AGL BY 2000 AND BELOW 1000 FT AGL BY 2400. SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2100. HAINES INDEX........4 LOW. .MONDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY(30-40%). MAX TEMPERATURE.....64-70. MIN HUMIDITY........10-13%. 20-FOOT WINDS.......WEST WINDS 4-10 MPH...BECOMING UPSLOPE/ UPVALLEY 4-10 MPH LOWER ELEVATIONS BY 1200. TRANSPORT WINDS.....WEST 12-20 MPH. MIXING HEIGHT.......RISING TO 3000 FT AGL BY 1000 AND 11 THOUSAND FT AGL BY 1300. SMOKE DISPERSAL.....POOR UNTIL 1000. EXCELLENT AFTER 1200. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE LOWER 40S. HIGHS AROUND 60. WEST WINDS AROUND 8 MPH. .THURSDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR COW CREEK. +++ 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 09/12-01 0 0 47 23 W 8 17 1 437 W 10 3877 P 09/12-02 1 0 43 26 W 10 17 1 297 W 10 2651 P 09/12-03 1 0 40 28 W 12 17 4 1 W35 158 W 10 1424 P 09/12-04 1 0 37 30 W 13 1 153 W 12 1489 P 09/12-05 1 0 37 29 W 14 1 148 W 13 1553 P 09/12-06 8 0 37 29 W 14 22 4 1 W36 142 W 13 1618 P 09/12-07 8 0 38 30 W 15 1 608 W 15 8995 P 09/12-08 8 0 43 28 W 15 1 1074 W 16 16373 P 09/12-09 8 0 49 24 W 14 23 4 1 W30 1541 W 17 23750 P 09/12-10 8 0 54 19 W 13 1 3274 W 18 52914 F 09/12-11 8 0 57 16 W 12 1 5007 W 18 82079 G 09/12-12 41 0 60 14 W 10 16 4 1 W28 6740 W 20 111243 V 09/12-13 41 0 61 13 W 10 1 7570 W 18 117429 V 09/12-14 41 0 62 12 W 9 1 8401 W 17 123616 V 09/12-15 41 0 63 12 W 10 16 3 1 W25 9231 W 16 129802 V 09/12-16 41 0 63 12 W 10 1 9188 W 16 128496 V 09/12-17 41 0 62 12 W 10 1 9146 W 16 127191 V 09/12-18 17 0 63 12 W 10 17 4 1 W25 9103 W 16 125885 V 09/12-19 17 0 61 13 W 10 1 7476 W 15 98729 G 09/12-20 17 0 58 16 W 9 1 5850 W 14 71572 G 09/12-21 17 0 55 19 W 9 15 3 1 W24 4224 SW 13 44416 F 09/12-22 17 0 53 22 SW 10 1 2916 SW 12 30430 P 09/12-23 17 0 51 25 SW 10 1 1607 SW 10 16444 P 09/13-00 20 0 49 28 SW 12 18 4 1 SW24 298 SW 9 2458 P 09/13-01 20 0 48 30 SW 13 1 263 SW 10 2250 P 09/13-02 20 0 47 31 SW 13 1 228 SW 10 2042 P 09/13-03 20 0 46 31 SW 13 21 3 1 SW28 194 W 10 1834 P 09/13-04 20 0 45 31 SW 12 1 189 W 10 1681 P 09/13-05 20 0 44 31 W 10 1 184 W 9 1529 P 09/13-06 24 0 44 31 W 9 15 3 1 W32 180 W 9 1376 P 09/13-07 24 0 46 29 W 8 1 1706 W 12 25226 P 09/13-08 24 0 49 26 W 7 1 3233 W 15 49077 F 09/13-09 24 0 55 21 W 6 6 2 1 W31 4760 W 17 72927 G 09/13-10 24 0 59 18 W 6 1 6859 W 18 107375 V 09/13-11 24 0 61 16 W 7 1 8958 W 18 141822 V 09/13-12 34 0 63 14 W 8 8 3 1 W33 11057 W 18 176270 E 09/13-13 34 0 64 13 W 8 1 11667 W 18 186536 E 09/13-14 34 0 65 12 W 9 1 12276 W 18 196802 E 09/13-15 34 0 66 12 W 9 9 3 1 W26 12885 W 18 207068 E 09/13-16 34 0 65 12 W 9 1 12709 W 18 197741 E 09/13-17 34 0 64 13 W 9 1 12533 W 17 188415 E 09/13-18 34 0 64 13 W 9 9 3 1 W22 12356 W 16 179088 E 09/13-19 34 0 61 16 W 9 1 9665 W 15 132884 V 09/13-20 34 0 59 19 W 9 1 6974 W 13 86680 G 09/13-21 34 0 57 22 W 9 9 3 1 W20 4283 W 10 40476 F 09/13-22 34 0 56 25 W 9 1 2980 W 10 27923 P 09/13-23 34 0 55 27 W 9 1 1677 W 9 15371 P 09/14-00 23 0 52 30 W 9 9 4 1 W17 374 W 9 2819 P 09/14-01 23 0 51 31 W 9 1 327 W 8 2447 P 09/14-02 23 0 50 32 W 9 1 281 W 8 2075 P 09/14-03 23 0 49 32 W 9 9 4 1 W18 234 W 8 1702 P 09/14-04 23 0 49 31 W 9 1 229 W 8 1621 P 09/14-05 23 0 48 30 W 9 1 223 W 8 1540 P 09/14-06 23 0 48 30 W 8 8 4 1 W20 218 W 8 1459 P 09/14-07 23 0 50 28 W 7 1 1148 W 7 6523 P 09/14-08 23 0 51 27 W 6 1 2078 W 7 11587 P 09/14-09 23 0 54 25 W 5 5 4 1 W16 3008 W 7 16651 P 09/14-10 23 0 57 24 W 5 1 5856 W 8 46632 F 09/14-11 23 0 58 24 SW 5 1 8705 W 9 76613 G 09/14-12 30 0 60 24 SW 6 6 3 1 SW18 11553 W 10 106594 V 09/14-13 30 0 61 23 SW 7 1 12044 W 12 117293 V 09/14-14 30 0 61 22 SW 8 1 12534 W 12 127991 V 09/14-15 30 0 62 21 SW 8 8 4 1 W15 13025 W 13 138690 V 09/14-16 30 0 61 22 SW 8 1 12225 W 13 134482 V 09/14-17 30 0 60 24 W 7 1 11424 W 13 130274 V 09/14-18 30 0 60 25 W 7 7 4 1 W16 10624 W 14 126066 V 09/14-19 30 0 57 28 W 7 1 09/14-20 30 0 54 30 W 7 1 09/14-21 30 0 53 32 W 7 7 1 09/14-22 30 0 51 34 W 7 1 09/14-23 30 0 50 37 W 7 1 09/15-00 18 0 48 41 W 7 7 1 09/15-01 18 0 47 44 W 7 1 09/15-02 18 0 46 46 W 8 1 09/15-03 18 0 45 47 W 8 8 1 09/15-04 18 0 45 46 W 8 1 09/15-05 18 0 44 45 W 9 1 09/15-06 18 0 44 43 W 9 9 1 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...FIRE OPERATIONS REASON FOR REQUEST...WILDFIRE .TAG 20100911.COWCR.01/BOU