FNUS75 KBOU 091401 FWSBOU SPOT FORECAST FOR GRAND LAKE BOUNDARY PILES...USFS NATIONAL WEATHER SERVICE DENVER CO 701 AM MST TUE FEB 9 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WEAK UPPER LEVEL RIDGE WILL BE OVER THE STATE THROUGH WEDNESDAY WITH LIGHT TO MODERATE WESTERLY FLOW ALOFT. A COOL AND VERY DRY AIRMASS WILL ALSO BE IN PLACE. WITH SURFACE TEMPERATURES STARTING SO COLD...SURFACE BASED INVERSIONS WILL REMAIN STRONG THROUGH MIDDAY. INVERSIONS MAY FINALLY BREAK IN THE MID TO LATE AFTERNOON ALLOWING FOR A SHORT PERIOD OF SUFFICIENT VENTILATION. WITH WARMER TEMPERATURES EXPECTED ON WEDNESDAY...SURFACE INVERSIONS WILL BREAK EARLIER ALLOWING FOR A LONGER PERIOD OF SUFFICIENT VENTILATION. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....22-28. MIN HUMIDITY........34-40%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-8 MPH UNTIL 1200...THEN WEST 6-12 MPH. TRANSPORT WINDS.....SOUTHWEST 5-10 MPH UNTIL 1200...THEN WEST 12-20 MPH. MIXING HEIGHT.......200-500 FT AGL UNTIL 1000...THEN 1500-2000 FT AGL UNTIL 1400...THEN 3500-4500 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1200...THEN FAIR. BECOMING GOOD AFTER 1400. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....5 BELOW TO 5 ABOVE. MAX HUMIDITY........86-94%. WIND (20 FT)........WEST 8-13 MPH UNTIL 2400...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH. TRANSPORT WINDS.....SOUTHWEST 5-16 MPH. MIXING HEIGHT.......2500-3000 FT AGL UNTIL 2000...THEN 500-1000 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 1900...THEN POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY... SKY/WEATHER.........PARTLY CLOUDY UNTIL 1400 THEN MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1400. MAX TEMPERATURE.....22-28. MIN HUMIDITY........44-52%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1200...THEN WEST 8-12 MPH. TRANSPORT WINDS.....WEST 5-10 MPH UNTIL 1200 THEN 12-20 MPH. MIXING HEIGHT.......500-1000 FT AGL UNTIL 1100...THEN 2500-3500 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1300...THEN FAIR UNTIL 1600...THEN POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. NOT AS COLD. LOWS AROUND 6. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 8 MPH. .FRIDAY...CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 10. HIGHS IN THE MID 30S. WEST WINDS AROUND 9 MPH. .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 13. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR GRAND LAKE BOUNDARY PILES. +++ 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 02/09-06 0 0 -4 52 S 2 1 198 S 2 356 P 02/09-07 4 0 -3 47 S 2 1 258 SW 2 531 P 02/09-08 4 0 2 41 S 2 2 3 1 NW23 318 SW 2 706 P 02/09-09 4 0 8 40 SW 3 1 1318 W 7 15667 P 02/09-10 4 0 13 44 SW 5 1 2317 W 12 30627 P 02/09-11 0 0 18 45 SW 5 5 3 1 NW17 3317 W 16 45588 F 02/09-12 0 0 22 42 SW 7 1 3943 W 17 60879 G 02/09-13 0 0 25 39 W 8 1 4569 W 18 76170 G 02/09-14 0 0 26 37 W 9 9 2 1 W14 5195 W 21 91461 G 02/09-15 0 0 26 37 W 8 1 4905 W 20 85461 G 02/09-16 0 0 24 39 W 8 1 4615 W 20 79462 G 02/09-17 5 0 21 45 W 8 8 2 1 NW18 4324 W 20 73462 G 02/09-18 5 0 18 51 W 9 1 3432 W 17 55375 F 02/09-19 5 0 15 58 W 9 1 2540 W 15 37288 P 02/09-20 22 0 13 65 W 9 9 3 1 NW20 1647 W 14 19202 P 02/09-21 22 0 11 70 W 8 1 1290 W 12 14345 P 02/09-22 22 0 9 74 W 8 1 933 W 10 9489 P 02/09-23 14 0 8 76 SW 7 7 3 1 W24 576 W 9 4633 P 02/10-00 14 0 7 81 SW 6 1 502 W 9 3848 P 02/10-01 14 0 6 85 SW 6 1 427 SW 8 3064 P 02/10-02 41 0 5 89 SW 5 5 2 1 W25 353 SW 7 2280 P 02/10-03 41 0 5 91 SW 3 1 345 SW 7 1961 P 02/10-04 41 0 4 92 SW 3 1 336 SW 6 1642 P 02/10-05 69 10 5 92 S 3 3 2 1 W30 328 SW 5 1322 P 02/10-06 69 10 5 94 S 3 1 445 SW 5 1985 P 02/10-07 69 10 5 94 S 3 1 554 W 6 2605 P 02/10-08 69 10 7 93 S 3 3 2 1 W25 664 W 6 3224 P 02/10-09 69 10 10 87 SW 5 1 1293 W 8 11061 P 02/10-10 69 10 13 82 SW 6 1 1923 W 10 18899 P 02/10-11 84 10 15 75 SW 7 7 2 1 W22 2552 W 12 26736 P 02/10-12 84 10 17 65 SW 8 1 3010 W 14 36642 P 02/10-13 84 10 18 55 SW 9 1 3468 W 15 46547 F 02/10-14 84 10 19 50 W 9 9 2 1 W24 3926 W 16 56453 F 02/10-15 84 10 19 50 W 9 1 3198 W 15 44167 F 02/10-16 84 10 18 53 W 8 1 2470 W 14 31881 P 02/10-17 84 10 16 59 W 7 7 2 1 W29 1742 W 13 19595 P 02/10-18 84 10 14 64 W 6 1 1305 W 10 13879 P 02/10-19 84 10 13 69 W 6 1 868 W 9 8164 P 02/10-20 84 10 11 75 W 5 5 2 1 W32 431 W 7 2449 P 02/10-21 84 10 10 80 W 5 1 384 W 7 2140 P 02/10-22 84 10 9 85 W 5 1 337 W 6 1831 P 02/10-23 64 10 8 88 W 5 5 2 1 W28 290 W 6 1523 P 02/11-00 64 10 7 92 W 5 1 278 W 6 1485 P 02/11-01 64 10 7 94 W 6 1 266 W 6 1447 P 02/11-02 64 10 6 95 SW 6 6 2 1 W31 254 SW 7 1409 P 02/11-03 64 10 6 96 SW 5 1 263 W 6 1203 P 02/11-04 64 10 6 90 W 3 1 271 W 5 998 P 02/11-05 64 10 6 85 W 2 2 2 1 W33 280 W 3 793 P 02/11-06 64 10 6 83 CALM 1 532 W 5 2365 P 02/11-07 64 10 8 77 CALM 1 785 W 5 3937 P 02/11-08 64 10 12 69 S 2 2 2 1 NW26 1037 W 6 5510 P 02/11-09 64 10 17 61 S 3 1 2417 W 10 30706 P 02/11-10 64 10 21 70 SW 6 1 3796 W 14 55903 F 02/11-11 64 10 25 67 W 8 8 2 1 NW23 5176 W 18 81099 G 02/11-12 64 10 28 57 W 10 1 5459 W 20 95188 G 02/11-13 64 10 30 48 W 12 1 5743 W 22 109278 V 02/11-14 64 10 31 43 W 13 13 2 1 W32 6026 W 23 123367 V 02/11-15 64 10 30 44 W 13 1 5777 W 24 121757 V 02/11-16 64 10 29 48 W 13 1 5529 W 25 120148 V 02/11-17 84 10 25 56 W 12 12 2 1 W45 5280 W 25 118538 V 02/11-18 84 10 23 61 W 12 1 5069 W 26 115366 V 02/11-19 84 10 21 65 W 12 1 4857 W 26 112194 V 02/11-20 84 10 19 69 W 12 12 2 1 NW51 4646 W 26 109022 V 02/11-21 84 10 16 73 W 12 1 3943 W 25 89401 G 02/11-22 84 10 15 77 W 12 1 3240 W 24 69781 G 02/11-23 84 10 14 82 W 12 12 2 1 NW46 2537 W 23 50160 F 02/12-00 84 10 12 82 W 12 1 2168 W 21 39901 P 02/12-01 84 10 12 80 W 10 1 1799 W 18 29641 P 02/12-02 84 10 11 79 W 10 10 2 1 NW43 1430 W 16 19382 P 02/12-03 84 10 10 78 W 10 1 1499 W 15 19349 P 02/12-04 84 10 10 78 W 9 1 1567 W 14 19315 P 02/12-05 84 10 10 78 W 9 9 2 1 NW45 1635 W 14 19282 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 $$ DANKERS...WFO BOULDER REQUESTED BY...JAMES CHAMP REASON FOR REQUEST...PRESCRIBED .TAG 20100209.GRAND.01/BOU