FNUS75 KBOU 310157 FWSBOU SPOT FORECAST FOR GLACIER BASIN PILE BURN...USFS NATIONAL WEATHER SERVICE DENVER CO 755 PM MDT MON MAR 30 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...NORTHWEST FLOW ALOFT THROUGH THE PERIOD WITH A SLIGHT CHANCE OF SNOW. GUSTY NORTHWEST WINDS OVER THE MOUNTAINS AND FOOTHILLS WILL CONTINUE THROUGH THE PERIOD. TUESDAY WILL BE ABOUT 10 DEGREES WARMER THAN TODAY WITH HUMIDITIES ABOUT 5 TO 10 PERCENT LOWER. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TUESDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%). SLIGHT CHANCE OF SNOW. MAX TEMPERATURE.....27. MIN HUMIDITY........48%. 20-FOOT WINDS.......BREEZY. WEST 18-28 MPH WITH GUSTS TO AROUND 40 MPH. TRANSPORT WINDS.....WEST 37-52 MPH. MIXING HEIGHT.......5000-6000 FT AGL. SMOKE DISPERSAL.....EXCELLENT. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TUESDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. MIN TEMPERATURE.....17. MAX HUMIDITY........75%. 20-FOOT WINDS.......BREEZY. WEST 18-28 MPH WITH GUSTS TO AROUND 45 MPH. TRANSPORT WINDS.....WEST 37-52 MPH. MIXING HEIGHT.......5000-5200 FT AGL. SMOKE DISPERSAL.....EXCELLENT. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY... SKY/WEATHER.........CLOUDY. SNOW LIKELY. MAX TEMPERATURE.....31. MIN HUMIDITY........57%. 20-FOOT WINDS.......NORTH 8-14 MPH WITH GUSTS TO AROUND 20 MPH. TRANSPORT WINDS.....WEST 28-36 MPH UNTIL 1200...THEN 20-24 MPH. MIXING HEIGHT.......6600-7600 FT AGL UNTIL 1400...THEN 9600-10600 FT AGL. SMOKE DISPERSAL.....VERY GOOD UNTIL 1400...THEN EXCELLENT. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1800. LOWS AROUND 16. HIGHS IN THE MID 30S. WEST WINDS AROUND 12 MPH WITH GUSTS TO AROUND 20 MPH. .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600...THEN CHANCE OF RAIN SHOWERS AND SNOW SHOWERS UNTIL 1800...THEN CHANCE OF SNOW. LOWS IN THE LOWER 20S. HIGHS AROUND 40. WEST WINDS AROUND 9 MPH WITH GUSTS TO AROUND 25 MPH. .SATURDAY...CLOUDY. CHANCE OF SNOW. COLDER. LOWS AROUND 20. HIGHS IN THE UPPER 20S. NORTH WINDS AROUND 11 MPH WITH GUSTS TO AROUND 20 MPH. .SUNDAY...PARTLY CLOUDY. CHANCE OF SNOW UNTIL 0600. LOWS AROUND 17. HIGHS IN THE UPPER 30S. NORTHWEST WINDS AROUND 8 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 03/30-19 78 31 17 53 1 7290 NW 41 259825 E 03/30-20 78 31 16 53 1 6249 NW 40 220100 E 03/30-21 78 19 14 56 NW 17 33 2 1 N36 5208 NW 40 180375 E 03/30-22 78 19 13 59 1 4948 NW 41 177026 E 03/30-23 78 19 13 62 1 4688 NW 43 173677 E 03/31-00 78 20 12 65 W 16 33 2 1 N35 4428 NW 44 170328 E 03/31-01 78 20 12 67 1 4168 NW 44 159512 E 03/31-02 78 20 11 69 1 3908 NW 44 148695 V 03/31-03 78 20 11 70 W 16 25 2 1 NW22 3648 NW 44 137879 V 03/31-04 78 20 11 70 1 3940 NW 43 146669 V 03/31-05 78 20 11 69 1 4233 NW 43 155458 E 03/31-06 58 10 11 68 W 16 25 2 1 NW35 4525 NW 41 164247 E 03/31-07 58 10 12 68 W 16 1 4672 NW 43 171448 E 03/31-08 58 10 13 67 W 17 1 4818 NW 43 178649 E 03/31-09 58 10 16 62 W 17 28 2 1 NW37 4964 NW 43 185851 E 03/31-10 58 10 19 57 W 17 1 5254 NW 43 193895 E 03/31-11 58 10 21 53 W 17 1 5544 W 41 201940 E 03/31-12 58 10 23 50 W 18 30 2 1 NW38 5835 W 41 209985 E 03/31-13 58 10 25 49 W 20 1 5858 W 44 224797 E 03/31-14 58 10 26 48 W 22 1 5881 W 47 239610 E 03/31-15 58 10 27 48 W 24 39 2 1 NW40 5904 W 49 254422 E 03/31-16 58 10 27 48 W 25 1 5681 W 51 250000 E 03/31-17 58 10 26 48 W 24 1 5457 W 52 245579 E 03/31-18 75 48 25 54 W 24 39 2 1 NW46 5233 W 53 241157 E 03/31-19 75 48 24 57 W 25 1 5143 W 49 223817 E 03/31-20 75 48 23 61 W 25 1 5053 W 47 206476 E 03/31-21 75 48 22 67 W 26 43 2 1 NW54 4962 W 44 189136 E 03/31-22 75 48 20 71 W 26 1 5000 W 45 192545 E 03/31-23 75 48 20 73 W 26 1 5038 W 45 195953 E 04/01-00 75 48 19 75 W 25 40 2 1 W45 5077 W 45 199362 E 04/01-01 75 48 19 75 W 24 1 5065 W 44 190928 E 04/01-02 75 48 18 74 W 22 1 5053 W 41 182494 E 04/01-03 75 48 18 73 W 20 31 2 1 W47 5042 W 40 174060 E 04/01-04 75 48 18 72 W 17 1 5075 W 39 174896 E 04/01-05 75 48 18 70 W 15 1 5108 W 39 175732 E 04/01-06 83 55 18 69 W 13 21 2 1 NW54 5141 W 39 176568 E 04/01-07 83 55 18 70 W 10 1 5179 W 37 167302 E 04/01-08 83 55 20 68 W 9 1 5216 W 35 158037 E 04/01-09 83 55 22 66 W 8 8 2 1 W31 5254 W 32 148771 V 04/01-10 83 55 24 63 NW 7 1 5822 W 28 137566 V 04/01-11 83 55 26 60 NW 7 1 6391 W 23 126362 V 04/01-12 83 67 28 59 NW 7 7 2 1 W25 6959 W 20 115158 V 04/01-13 83 67 29 58 NW 8 1 8187 W 21 148724 V 04/01-14 83 67 30 57 NW 9 1 9415 W 22 182290 E 04/01-15 83 67 30 58 N 10 17 2 1 W29 10642 W 23 215856 E 04/01-16 83 67 30 59 N 12 1 10415 W 23 204577 E 04/01-17 83 67 30 62 N 13 1 10188 W 22 193298 E 04/01-18 77 53 28 65 N 14 22 2 1 NW18 9961 W 21 182020 E 04/01-19 77 53 27 67 N 13 1 8396 NW 20 145533 V 04/01-20 77 53 25 71 N 12 1 6832 NW 17 109046 V 04/01-21 77 53 22 76 NW 10 16 2 1 N14 5267 NW 16 72560 G 04/01-22 77 53 21 78 NW 8 1 5224 NW 15 67374 G 04/01-23 77 53 20 78 W 7 1 5181 N 14 62187 G 04/02-00 62 6 19 77 W 6 6 2 1 N21 5137 N 13 57001 F 04/02-01 62 6 18 77 W 6 1 5121 N 10 46564 F 04/02-02 62 6 17 75 W 7 1 5104 N 8 36127 P 04/02-03 62 6 17 74 W 8 8 2 1 NW16 5088 N 6 25690 P 04/02-04 62 6 17 72 W 10 1 5055 N 7 31313 P 04/02-05 62 6 17 70 W 12 1 5021 NW 8 36936 P 04/02-06 51 0 17 69 W 13 21 2 1 NW30 4988 W 10 42559 F 04/02-07 51 0 18 69 W 14 1 5019 W 13 54946 F 04/02-08 51 0 20 65 W 14 1 5051 W 15 67333 G 04/02-09 51 0 22 60 W 14 22 2 1 NW48 5083 W 18 79720 G 04/02-10 51 0 26 54 W 14 1 5087 W 20 85322 G 04/02-11 51 0 28 50 W 14 1 5092 W 21 90925 G 04/02-12 51 0 31 46 W 14 22 3 1 NW44 5096 W 22 96527 G 04/02-13 51 0 33 43 W 14 1 5180 W 24 106861 V 04/02-14 51 0 34 42 W 14 1 5263 W 25 117194 V 04/02-15 51 0 34 39 W 14 22 2 1 W45 5347 W 28 127528 V 04/02-16 51 0 34 40 W 13 1 5285 W 28 129074 V 04/02-17 51 0 34 41 W 13 1 5224 W 29 130620 V 04/02-18 69 12 33 43 W 13 21 2 1 W43 5162 W 30 132166 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 $$ WFO BOULDER REQUESTED BY...JAMES CHAMP REASON FOR REQUEST...PRESCRIBED .TAG 20090331.GLACI.01/BOU