FNUS75 KBOU 081931 FWSBOU SPOT FORECAST FOR HEIL RANCH...BOULDER COUNTY SHERIFF NATIONAL WEATHER SERVICE DENVER CO 130 PM MDT THU OCT 8 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...LOW LEVEL INVERSIONS WILL KEEP MIXING HEIGHTS LOW AND TRANSPORT WINDS LIGHT THIS AFTERNOON AND EVENING ...WHICH WILL LIMIT SMOKE DISPERSION. SOME SNOW WILL MOVE ACROSS THE AREA...WITH LIGHT ACCUMULATIONS EXPECTED. HOWEVER...THE SNOW FALL IS NOT EXPECTED TO IMPROVE THE SMOKE DISPERSAL. DRIER CONDITIONS ARE EXPECTED FRIDAY AS THE FLOW ALOFT BECOMES WESTERLY AND INCREASES. THIS WILL INCREASE THE TRANSPORT WINDS WHICH WILL IMPROVE THE SMOKE DISPERSION BY THE AFTERNOON. COLDER AIR WILL MOVE INTO THE AREA SATURDAY...WITH ANOTHER CHANCE FOR SNOW THROUGH SUNDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........CLOUDY. AREAS OF FOG. LIGHT SNOW LIKELY. ACCUMULATIONS AROUND AN INCH. MAX TEMPERATURE.....35-39. MIN HUMIDITY........55-60%. 20-FOOT WINDS.......EAST 3-6 MPH BECOMING SOUTH AFTER 1500. TRANSPORT WINDS.....WEST 5-12 MPH. MIXING HEIGHT.......3400-3800 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........CLOUDY UNTIL 0300...THEN PARTLY CLOUDY(50-60%). LIGHT SNOW LIKELY UNTIL 2100...THEN CHANCE OF SNOW. ADDITIONAL SNOW ACCUMULATIONS LESS THAN AN INCH. MIN TEMPERATURE.....23-37. MAX HUMIDITY........95-100%. 20-FOOT WINDS.......WEST 13-19 MPH. TRANSPORT WINDS.....WEST 8-16 MPH. MIXING HEIGHT.......2000-3000 FT AGL UNTIL 2200...THEN 400-1400 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%). ISOLATED SNOW SHOWERS UNTIL 1300...THEN SLIGHT CHANCE OF RAIN AND SNOW. MAX TEMPERATURE.....48. MIN HUMIDITY........49%. 20-FOOT WINDS.......WEST 15-24 MPH UNTIL 1200...THEN 8-13 MPH. TRANSPORT WINDS.....WEST 21-32 MPH. MIXING HEIGHT.......1000-2000 FT AGL UNTIL 1100...THEN 4400-5400 FT AGL UNTIL 1700...THEN 2200 FT AGL. SMOKE DISPERSAL.....POOR...BECOMING GOOD BY 1000. VERY GOOD BY 1200. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...SNOW LIKELY UNTIL 0600...THEN CHANCE OF SNOW. COLDER. LOWS IN THE MID 20S. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 1800. CHANCE OF RAIN AFTER 1200 UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .COLUMBUS DAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR HEIL RANCH. +++ 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 10/08-13 96 70 37 74 NE 5 1 3702 W 9 28155 P 10/08-14 96 70 37 73 SE 2 1 3733 W 9 29514 P 10/08-15 96 70 37 73 CALM 1 2 1 W38 3764 W 9 30873 P 10/08-16 96 70 37 73 CALM 1 3575 W 9 28798 P 10/08-17 96 70 36 74 S 2 1 3385 W 9 26724 P 10/08-18 90 56 35 76 S 3 3 2 1 W47 3196 W 9 24649 P 10/08-19 90 56 33 82 SW 3 1 2730 W 9 21574 P 10/08-20 90 56 31 85 SW 5 1 2265 W 9 18498 P 10/08-21 90 10 31 86 W 5 5 2 1 W47 1800 W 10 15423 P 10/08-22 90 10 30 87 W 6 1 1396 W 10 11996 P 10/08-23 79 10 29 87 W 7 1 993 W 10 8569 P 10/09-00 79 10 28 87 W 8 8 2 1 W39 589 W 10 5142 P 10/09-01 79 10 28 97 W 10 1 478 W 12 4412 P 10/09-02 60 10 27 96 W 12 1 366 W 13 3681 P 10/09-03 60 10 27 95 W 14 22 2 1 NW43 255 W 14 2951 P 10/09-04 60 10 27 94 W 16 1 234 W 15 2952 P 10/09-05 60 10 26 93 W 17 1 213 W 16 2952 P 10/09-06 63 10 26 93 W 20 31 2 1 NW58 193 W 17 2953 P 10/09-07 63 10 27 91 W 20 1 572 W 23 14820 P 10/09-08 63 10 31 77 W 21 1 951 W 28 26678 P 10/09-09 63 10 37 64 W 21 33 2 1 W64 1330 W 33 38537 P 10/09-10 63 10 41 55 W 17 1 2433 W 33 71891 G 10/09-11 63 10 43 51 W 15 1 3535 W 35 105245 V 10/09-12 61 10 45 49 W 12 12 2 1 W69 4638 W 35 138599 V 10/09-13 61 20 46 49 W 10 1 5005 W 31 133492 V 10/09-14 61 20 47 49 W 10 1 5373 W 28 128384 V 10/09-15 61 20 47 49 W 9 9 2 1 W62 5741 W 24 123277 V 10/09-16 61 20 47 51 W 9 1 3946 W 20 83133 G 10/09-17 61 20 45 54 W 10 1 2152 W 14 42990 F 10/09-18 61 22 44 57 W 10 10 2 1 W62 357 W 9 2846 P 10/09-19 61 22 40 66 W 10 1 521 W 10 4690 P 10/09-20 82 22 37 73 W 9 1 685 W 10 6533 P 10/09-21 82 31 35 75 W 9 9 2 1 W61 850 W 12 8377 P 10/09-22 82 31 33 79 W 8 1 1532 W 12 15684 P 10/09-23 82 31 32 80 NW 6 1 2214 W 12 22990 P 10/10-00 82 57 31 82 N 5 5 2 1 W66 2897 W 12 30297 P 10/10-01 82 57 30 84 N 3 1 3150 W 14 39610 P 10/10-02 82 57 29 87 NE 3 1 3403 W 16 48922 F 10/10-03 82 57 28 89 NE 2 2 2 1 W75 3656 W 18 58235 F 10/10-04 82 57 27 92 NE 2 1 3710 W 18 61235 G 10/10-05 82 57 27 94 N 3 1 3764 W 20 64236 G 10/10-06 90 51 26 81 N 3 3 2 1 W79 3818 W 21 67236 G 10/10-07 90 51 28 78 NW 3 1 3899 W 22 74075 G 10/10-08 90 51 27 79 NW 3 1 3981 W 23 80914 G 10/10-09 90 51 29 74 W 3 3 2 1 W82 4062 W 25 87753 G 10/10-10 90 51 31 72 W 3 1 4134 W 25 92767 G 10/10-11 90 51 31 73 W 5 1 4206 W 26 97781 G 10/10-12 90 51 32 74 W 5 5 2 1 W84 4278 W 28 102795 V 10/10-13 90 51 32 75 W 5 1 4168 W 26 94182 G 10/10-14 90 51 33 76 SW 5 1 4057 W 24 85570 G 10/10-15 90 51 33 78 SW 5 5 2 1 W79 3947 W 22 76957 G 10/10-16 90 51 33 78 SW 5 1 3661 W 21 66613 G 10/10-17 90 51 32 78 SW 5 1 3374 W 18 56269 F 10/10-18 94 30 32 78 SW 5 5 2 1 W71 3087 W 17 45925 F 10/10-19 94 30 30 80 S 6 1 2901 W 17 43082 F 10/10-20 94 30 29 80 S 6 1 2716 W 17 40239 F 10/10-21 94 30 29 79 S 7 7 2 1 W67 2530 W 17 37396 P 10/10-22 94 30 28 78 SW 7 1 2311 W 16 32593 P 10/10-23 94 30 28 77 SW 7 1 2092 W 15 27791 P 10/11-00 88 30 27 76 W 7 7 2 1 W63 1873 W 14 22989 P 10/11-01 88 30 27 75 W 8 1 1690 W 15 21114 P 10/11-02 88 30 26 75 W 8 1 1507 W 15 19239 P 10/11-03 88 30 26 75 W 9 9 2 1 W64 1323 W 15 17364 P 10/11-04 88 30 26 75 W 10 1 1142 W 15 15011 P 10/11-05 88 30 26 75 W 10 1 961 W 15 12658 P 10/11-06 71 26 26 75 W 12 12 2 1 W75 779 W 15 10305 P 10/11-07 71 26 26 89 W 10 1 10/11-08 71 26 30 77 NW 9 1 10/11-09 71 26 34 66 N 9 9 1 10/11-10 71 26 37 57 N 8 1 10/11-11 71 26 39 54 NE 7 1 10/11-12 71 26 40 51 NE 6 6 1 10/11-13 71 26 41 49 NE 6 1 10/11-14 71 26 41 48 NE 6 1 10/11-15 71 26 42 47 NE 6 6 1 10/11-16 71 26 41 48 NE 6 1 10/11-17 71 26 40 49 N 7 1 10/11-18 84 20 39 50 N 7 7 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...LESZCYNSKI...WFO BOULDER REQUESTED BY...1592 STALNACKER REASON FOR REQUEST...PRESCRIBED .TAG 20091008.HEILR.01/BOU