FNUS75 KBOU 010143 FWSBOU SPOT FORECAST FOR GLACIER BASIN PILE BURN...USFS NATIONAL WEATHER SERVICE DENVER CO 745 PM MDT TUE MAR 31 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A STORM SYSTEM WILL DEVELOP ACROSS SOUTH CENTRAL COLORADO BY LATE WEDNESDAY WITH SNOW SHOWERS DEVELOPING IN THE EARLY MORNING HOURS...THEN BECOMING WIDESPREAD BY LATE MORNING. TOTAL SNOW ACCUMULATIONS WILL RANGE FROM 3 TO 6 INCHES. THE SNOW WILL END WEDNESDAY NIGHT. SNOW MAY BE HEAVY AT TIMES FROM 1000 TO 1600 LOCAL TIME WITH SNOWFALL RATES IN EXCESS OF ONE INCH PER HOUR. SMOKE VENTILATION WILL IMPROVE DURING THE AFTERNOON HOURS AS NORTHWEST WINDS INCREASE IN THE LOWER LEVELS OF THE ATMOSPHERE. THE NEXT STORM SYSTEM WILL SPREAD POSSIBLE SNOW ACROSS THE AREA LATE FRIDAY NIGHT AND SATURDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TONIGHT... SKY/WEATHER.........CLOUDY. AREAS OF BLOWING SNOW. CHANCE OF SNOW. MIN TEMPERATURE.....14. MAX HUMIDITY........80%. 20-FOOT WINDS.......WEST 13-23 MPH UNTIL 2400...THEN 7-13 MPH. TRANSPORT WINDS.....WEST 36-44 MPH UNTIL 2400...THEN 21-32 MPH. MIXING HEIGHT.......3800-4800 FT AGL UNTIL 2300. 800-1200 FT AGL AFTER 0200. SMOKE DISPERSAL.....EXCELLENT UNTIL 2100. POOR AFTER 0200. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY... SKY/WEATHER.........CLOUDY. SNOW. AREAS OF BLOWING SNOW AFTER 1200. MAX TEMPERATURE.....28. MIN HUMIDITY........53%. 20-FOOT WINDS.......NORTHWEST 8-14 MPH. TRANSPORT WINDS.....WEST 8-16 MPH. MIXING HEIGHT.......2200-3200 FT AGL UNTIL 0900...THEN 5400-6400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1300...THEN FAIR. GOOD AFTER 1400. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY NIGHT... SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2400. MIN TEMPERATURE.....13. MAX HUMIDITY........100%. 20-FOOT WINDS.......WEST 7-13 MPH. TRANSPORT WINDS.....NORTHWEST 12-20 MPH. MIXING HEIGHT.......4600-5600 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 2300...THEN FAIR UNTIL 0200...THEN GOOD. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1200...THEN MOSTLY CLOUDY. MAX TEMPERATURE.....34. MIN HUMIDITY........41%. 20-FOOT WINDS.......WEST 8-14 MPH. TRANSPORT WINDS.....WEST 24-32 MPH. MIXING HEIGHT.......4000-5000 FT AGL. SMOKE DISPERSAL.....VERY GOOD. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS AFTER 0600 UNTIL 1800...THEN CHANCE OF SNOW SHOWERS. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 0600...THEN CHANCE OF SNOW. COLDER. LOWS IN THE LOWER 20S. HIGHS IN THE MID 20S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...PARTLY CLOUDY. CHANCE OF SNOW UNTIL 0600. LOWS AROUND 14. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR GLACIER BASIN PILE BURN. +++ 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 03/31-19 84 48 24 52 W 21 1 4950 W 43 186422 E 03/31-20 84 48 22 55 W 18 1 4667 W 40 164696 E 03/31-21 84 48 20 60 W 15 24 2 1 W47 4383 W 38 142970 V 03/31-22 84 48 18 66 W 13 1 3635 W 36 115353 V 03/31-23 84 48 18 71 W 10 1 2887 W 35 87737 G 04/01-00 84 48 17 76 W 9 9 2 1 W33 2139 W 32 60121 G 04/01-01 84 48 16 79 W 8 1 1715 W 30 46502 F 04/01-02 84 48 16 80 W 8 1 1291 W 28 32883 P 04/01-03 84 48 15 79 W 9 9 2 1 W40 868 W 25 19265 P 04/01-04 84 48 15 76 W 10 1 1048 W 23 19942 P 04/01-05 84 48 15 72 W 13 1 1228 W 20 20620 P 04/01-06 100 78 15 70 W 13 13 2 1 W59 1409 W 17 21298 P 04/01-07 100 78 16 69 W 12 1 2541 W 15 26681 P 04/01-08 100 78 17 67 SW 10 1 3674 W 12 32065 P 04/01-09 100 77 19 64 SW 9 9 2 1 W22 4807 W 9 37448 P 04/01-10 100 77 21 58 W 7 1 4960 W 8 35024 P 04/01-11 100 77 23 56 NW 5 1 5112 W 7 32601 P 04/01-12 96 88 25 55 NW 3 3 2 1 SW13 5265 W 7 30177 P 04/01-13 96 88 26 54 NW 5 1 5687 W 9 46962 F 04/01-14 96 88 27 53 NW 8 1 6110 W 12 63747 G 04/01-15 96 88 27 53 NW 13 13 2 1 SE 9 6532 W 14 80531 G 04/01-16 96 88 27 53 W 10 1 6301 W 15 84112 G 04/01-17 96 88 26 54 W 10 1 6070 NW 17 87693 G 04/01-18 93 68 25 71 W 12 12 2 1 E 9 5839 NW 18 91273 G 04/01-19 93 68 18 100 W 10 1 5036 NW 16 72751 G 04/01-20 93 68 18 100 W 10 1 5026 NW 16 70241 G 04/01-21 93 68 18 100 W 9 9 2 1 CALM 5015 NW 16 67731 G 04/01-22 93 68 17 100 W 8 1 5005 NW 14 61972 G 04/01-23 93 68 17 91 W 8 1 4995 NW 13 56212 F 04/02-00 69 6 17 83 W 8 8 2 1 SW16 4985 NW 12 50452 F 04/02-01 69 6 16 81 W 8 1 4915 NW 14 59323 F 04/02-02 69 6 16 77 W 9 1 4844 NW 16 68194 G 04/02-03 69 6 15 74 W 9 9 2 1 W21 4774 NW 18 77065 G 04/02-04 69 6 15 70 W 10 1 4564 NW 20 78638 G 04/02-05 69 6 15 67 W 12 1 4354 W 22 80210 G 04/02-06 53 0 14 68 W 12 12 2 1 NW39 4144 W 23 81782 G 04/02-07 53 0 15 68 W 12 1 4045 W 24 84360 G 04/02-08 53 0 17 63 W 12 1 3946 W 25 86939 G 04/02-09 53 0 20 58 W 10 10 2 1 NW53 3847 W 26 89517 G 04/02-10 53 0 24 52 W 10 1 4210 NW 26 95689 G 04/02-11 53 0 27 48 W 9 1 4573 NW 25 101860 V 04/02-12 70 0 29 46 W 9 9 2 1 NW55 4936 NW 25 108032 V 04/02-13 70 0 31 44 W 9 1 4944 NW 25 109407 V 04/02-14 70 0 32 42 W 9 1 4952 W 25 110781 V 04/02-15 70 0 33 41 W 9 9 2 1 NW49 4961 W 26 112156 V 04/02-16 70 0 33 41 W 9 1 4749 W 29 117344 V 04/02-17 70 0 33 42 W 9 1 4538 W 31 122531 V 04/02-18 55 1 31 43 W 9 9 2 1 W54 4326 W 35 127719 V 04/02-19 55 1 30 44 W 9 1 3674 W 32 104428 V 04/02-20 55 1 29 47 W 10 1 3021 W 30 81138 G 04/02-21 55 1 27 51 W 10 10 2 1 W55 2369 W 28 57847 F 04/02-22 55 1 25 54 W 10 1 2082 W 28 49715 F 04/02-23 55 1 24 56 W 12 1 1794 W 26 41582 F 04/03-00 55 1 24 58 W 12 12 2 1 W47 1507 W 25 33450 P 04/03-01 55 1 23 59 W 12 1 1305 W 24 27910 P 04/03-02 55 1 22 60 W 13 1 1104 W 23 22370 P 04/03-03 55 1 22 60 W 13 20 2 1 W41 902 W 22 16831 P 04/03-04 55 1 22 61 W 14 1 960 W 25 21522 P 04/03-05 55 1 22 61 W 14 1 1017 W 29 26214 P 04/03-06 72 10 22 61 W 14 21 2 1 W56 1075 W 33 30906 P 04/03-07 72 10 22 61 SW 14 1 1662 W 33 49618 F 04/03-08 72 10 25 57 SW 13 1 2248 W 35 68329 G 04/03-09 72 10 27 53 SW 13 18 2 1 W54 2835 W 36 87041 G 04/03-10 72 10 30 48 SW 12 1 3622 W 35 108773 V 04/03-11 72 10 33 45 SW 12 1 4409 W 35 130506 V 04/03-12 72 10 35 42 SW 10 10 2 1 W51 5195 W 33 152238 E 04/03-13 72 10 36 40 SW 10 1 5236 SW 32 148567 V 04/03-14 72 10 38 40 SW 9 1 5277 SW 31 144897 V 04/03-15 72 10 38 40 SW 9 9 2 1 W55 5317 SW 31 141226 V 04/03-16 72 10 38 41 SW 8 1 5289 SW 30 138684 V 04/03-17 72 10 37 43 SW 8 1 5261 SW 30 136143 V 04/03-18 81 39 35 47 SW 7 7 2 1 SW54 5233 SW 30 133601 V 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...ENTREKIN REQUESTED BY...JAMES CHAMP REASON FOR REQUEST...PRESCRIBED .TAG 20090401.GLACI.01/BOU