FNUS75 KBOU 151000 FWSBOU SPOT FORECAST FOR GLACIER BASIN PILE BURN...USFS NATIONAL WEATHER SERVICE DENVER CO 359 AM MDT WED APR 15 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A STORM SYSTEM WILL INTENSIFY OVER UTAH WITH SURFACE LOW PRESSURE IN THE MOUNTAINS. MID LEVEL MOISTURE COMBINED WITH AFTERNOON HEATING WILL PRODUCE WIDELY SCATTERED THUNDERSTORMS THIS AFTERNOON AND EVENING. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1200...THEN SLIGHT CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....48. MIN HUMIDITY........45%. 20-FOOT WINDS.......SOUTHWEST 8-11 MPH UNTIL 0900...THEN UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1500...THEN SOUTHEAST 8-13 MPH. TRANSPORT WINDS.....SOUTH 8-16 MPH. MIXING HEIGHT.......5200-6200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900. GOOD AFTER 1600. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS UNTIL 2100...THEN CHANCE OF RAIN SHOWERS UNTIL 2400...THEN SLIGHT CHANCE OF RAIN AND SNOW. MIN TEMPERATURE.....25. MAX HUMIDITY........94%. 20-FOOT WINDS.......SOUTHEAST 8-11 MPH UNTIL 2400...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH. TRANSPORT WINDS.....SOUTHEAST 8-16 MPH. MIXING HEIGHT.......4600-5400 FT AGL UNTIL 2000. 400-600 FT AGL AFTER 2400. SMOKE DISPERSAL.....GOOD UNTIL 2000. POOR AFTER 2400. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1400...THEN CHANCE OF RAIN SHOWERS. MAX TEMPERATURE.....38. MIN HUMIDITY........58%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1200...THEN NORTHEAST 8-13 MPH. TRANSPORT WINDS.....SOUTHEAST 8-16 MPH UNTIL 1200...THEN 20-28 MPH. MIXING HEIGHT.......4400-5400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN GOOD UNTIL 1200...THEN VERY GOOD UNTIL 1700...THEN GOOD. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...SNOW LIKELY. COLDER. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 20S. NORTH WINDS AROUND 11 MPH. .SATURDAY...SNOW LIKELY UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS AROUND 19. HIGHS IN THE LOWER 30S. NORTHWEST WINDS AROUND 9 MPH. .SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. NOT AS COOL. LOWS IN THE LOWER 20S. HIGHS IN THE MID 40S. WEST WINDS AROUND 9 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 04/15-03 70 8 32 64 SW 6 6 2 1 S38 408 SW 13 4298 P 04/15-04 70 8 32 64 SW 6 1 743 SW 14 10156 P 04/15-05 70 8 32 63 S 5 1 1078 SW 16 16013 P 04/15-06 69 16 32 62 W 10 10 2 1 S37 1413 SW 17 21871 P 04/15-07 69 16 33 62 SW 10 1 2172 SW 16 28962 P 04/15-08 69 16 34 60 SW 7 1 2931 SW 15 36053 P 04/15-09 69 16 37 56 SW 2 2 2 1 S43 3690 S 14 43144 F 04/15-10 69 16 39 51 S 2 1 4324 S 13 44456 F 04/15-11 69 16 42 49 S 3 1 4959 S 12 45769 F 04/15-12 69 20 44 46 SE 5 5 2 3 S39 5594 S 9 47082 F 04/15-13 69 20 45 45 SE 6 3 5890 S 10 51049 F 04/15-14 69 20 46 45 SE 6 3 6187 S 10 55015 F 04/15-15 80 20 47 45 SE 7 7 2 3 S32 6483 S 10 58982 F 04/15-16 80 20 46 46 SE 8 3 6150 S 13 66594 G 04/15-17 80 20 45 49 SE 8 3 5818 S 15 74207 G 04/15-18 80 30 43 54 SE 9 9 2 4 S24 5485 S 17 81820 G 04/15-19 80 30 41 58 SE 9 4 4560 S 17 69360 G 04/15-20 80 30 38 65 SE 9 4 3635 S 18 56901 F 04/15-21 79 30 34 74 SE 9 9 2 1 S29 2709 SE 18 44441 F 04/15-22 79 30 32 80 SE 8 1 1958 SE 16 31075 P 04/15-23 79 30 31 84 SE 7 1 1207 SE 14 17708 P 04/16-00 79 20 29 86 E 6 6 2 1 S33 457 SE 12 4341 P 04/16-01 79 20 28 90 E 5 1 437 SE 9 3683 P 04/16-02 79 20 27 92 E 3 1 417 SE 8 3024 P 04/16-03 79 20 27 93 E 3 3 2 1 S46 398 SE 7 2365 P 04/16-04 79 20 26 94 E 3 1 528 SE 7 2956 P 04/16-05 79 20 26 92 E 3 1 659 SE 6 3548 P 04/16-06 77 20 27 90 E 3 3 2 1 S43 789 SE 6 4139 P 04/16-07 77 20 28 87 E 3 1 1809 SE 9 20652 P 04/16-08 77 20 28 87 E 5 1 2829 SE 13 37164 P 04/16-09 77 20 30 81 E 5 5 2 1 S51 3849 SE 16 53676 F 04/16-10 77 20 32 74 E 6 1 4340 SE 18 71018 G 04/16-11 77 20 34 69 E 7 1 4832 SE 21 88360 G 04/16-12 77 20 35 65 E 7 7 2 1 S55 5324 SE 23 105702 V 04/16-13 77 20 36 62 E 8 1 5368 SE 24 111540 V 04/16-14 77 40 37 60 E 8 1 5411 SE 25 117378 V 04/16-15 78 40 37 58 E 8 8 2 1 SE52 5455 SE 26 123216 V 04/16-16 78 40 37 58 NE 7 1 5313 E 22 103842 V 04/16-17 78 40 37 59 N 6 1 5171 E 18 84468 G 04/16-18 78 40 35 61 N 3 3 2 1 SE31 5028 E 15 65094 G 04/16-19 78 40 34 63 N 5 1 4325 E 20 67728 G 04/16-20 78 40 32 68 N 5 1 3622 E 24 70363 G 04/16-21 98 40 29 73 NE 6 6 2 1 SE45 2918 E 29 72997 G 04/16-22 98 40 27 77 N 6 1 2741 E 23 56382 F 04/16-23 98 40 26 78 N 6 1 2564 E 17 39767 P 04/17-00 98 40 25 79 N 6 6 2 1 SE39 2387 E 12 23153 P 04/17-01 98 40 24 77 N 6 1 2116 E 12 21755 P 04/17-02 100 40 24 76 N 7 1 1845 NE 13 20357 P 04/17-03 100 70 23 74 N 7 7 2 1 E35 1574 NE 14 18960 P 04/17-04 100 70 23 73 N 8 1 1595 NE 16 23196 P 04/17-05 100 70 23 71 N 9 1 1616 NE 20 27432 P 04/17-06 100 70 24 70 N 10 10 2 1 SE33 1637 NE 22 31668 P 04/17-07 100 70 24 72 N 12 1 1609 NE 23 32698 P 04/17-08 100 70 23 78 N 13 1 1581 NE 24 33729 P 04/17-09 100 70 24 78 N 15 15 2 1 NE41 1553 NE 25 34759 P 04/17-10 100 70 25 76 N 16 1 1638 NE 30 43657 F 04/17-11 100 70 26 73 N 16 1 1722 NE 35 52555 F 04/17-12 100 70 26 69 N 17 17 2 1 E47 1807 NE 39 61454 G 04/17-13 100 70 27 69 N 17 1 2133 NE 38 70753 G 04/17-14 100 70 27 68 N 16 1 2459 NE 38 80051 G 04/17-15 100 70 27 71 NE 16 16 2 1 E41 2786 E 37 89350 G 04/17-16 100 70 27 71 NE 14 1 2576 E 33 75397 G 04/17-17 100 70 27 73 NE 13 1 2367 NE 29 61444 G 04/17-18 100 70 26 75 N 12 12 2 1 E46 2158 NE 25 47491 F 04/17-19 100 70 25 75 N 10 1 1964 NE 23 39445 P 04/17-20 100 70 24 78 N 9 1 1770 NE 20 31400 P 04/17-21 100 70 23 81 N 7 7 2 1 E48 1576 NE 17 23354 P 04/17-22 100 70 22 81 N 8 1 1531 NE 16 22180 P 04/17-23 100 70 21 82 N 8 1 1486 NE 16 21006 P 04/18-00 100 70 21 83 N 8 8 2 1 E35 1440 N 16 19831 P 04/18-01 100 70 21 83 N 8 1 1243 N 15 16599 P 04/18-02 100 70 20 83 N 8 1 1045 N 15 13366 P 04/18-03 100 70 20 83 N 8 8 2 1 E22 847 N 14 10134 P 04/18-04 100 70 20 83 N 8 1 798 N 14 9813 P 04/18-05 100 70 20 82 N 8 1 749 N 15 9492 P 04/18-06 100 70 20 82 N 9 9 2 1 NE28 700 N 15 9171 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 $$ WFO BOULDER REQUESTED BY...JEFF SINGER REASON FOR REQUEST...PRESCRIBED .TAG 20090415.GLACI.01/BOU