FNUS75 KBOU 130037 FWSBOU SPOT FORECAST FOR HAYSTACK...USFS NATIONAL WEATHER SERVICE DENVER CO 537 PM MST FRI MAR 12 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER LEVEL RIDGE WILL BE OVER THE AREA ON SATURDAY WITH WEST TO NORTHWEST FLOW ALOFT SOME HIGH LEVEL MOISTURE WILL MOVE ACROSS THE AREA WITH SOME HIGH CLOUDS BUT NO PRECIPITATION WILL OCCUR. WINDS WILL BE LIGHT ON SATURDAY SO SMOKE DISPERSAL WILL BE POOR THROUGH THE DAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....27. MAX HUMIDITY........61%. WIND (20 FT)........WEST 8-13 MPH. TRANSPORT WINDS.....WEST 4-12 MPH. MIXING HEIGHT.......2200-3200 FT AGL UNTIL 2000...THEN 200-600 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY(50-60%). MAX TEMPERATURE.....55. MIN HUMIDITY........31%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....SOUTHWEST 4-8 MPH UNTIL 1200...THEN SOUTH. MIXING HEIGHT.......3000-4000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY(50-60%). PATCHY FOG AFTER 0200. SLIGHT CHANCE OF RAIN AND SNOW AFTER 0500. MIN TEMPERATURE.....29. MAX HUMIDITY........84%. WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2-8 MPH. TRANSPORT WINDS.....NORTH 4-8 MPH. MIXING HEIGHT.......2200-3200 FT AGL UNTIL 2000...THEN 400 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY... SKY/WEATHER.........MOSTLY CLOUDY. PATCHY FOG UNTIL 0800. SLIGHT CHANCE OF SNOW UNTIL 1100. SLIGHT CHANCE OF RAIN UNTIL 1700...THEN SLIGHT CHANCE OF SNOW. MAX TEMPERATURE.....45. MIN HUMIDITY........55%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH UNTIL 0900...THEN NORTH 9-15 MPH. TRANSPORT WINDS.....EAST 5-12 MPH. MIXING HEIGHT.......3600-4600 FT AGL. SMOKE DISPERSAL.....FAIR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .TUESDAY...MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN THE UPPER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .WEDNESDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AFTER 0600 UNTIL 1800. SLIGHT CHANCE OF SNOW AFTER 0600. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR HAYSTACK. +++ 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 03/12-17 3 0 48 29 W 3 3 2 1 N29 4767 N 6 25455 P 03/12-18 3 0 46 32 W 6 1 3378 NW 6 17871 P 03/12-19 3 0 42 38 W 8 1 1990 W 6 10287 P 03/12-20 3 0 38 45 W 9 9 2 1 N24 602 W 5 2702 P 03/12-21 3 0 35 50 W 9 1 482 W 6 2277 P 03/12-22 3 0 33 53 W 9 1 361 W 6 1853 P 03/12-23 3 0 32 55 W 9 9 3 1 NW18 241 W 7 1428 P 03/13-00 3 0 30 58 W 9 1 217 W 7 1283 P 03/13-01 3 0 29 58 W 8 1 192 W 7 1138 P 03/13-02 3 0 29 59 W 8 8 3 1 NW14 168 W 7 993 P 03/13-03 3 0 28 60 W 8 1 173 W 7 1014 P 03/13-04 3 0 28 60 W 8 1 178 W 7 1035 P 03/13-05 22 0 29 61 W 8 8 3 1 W12 183 W 7 1056 P 03/13-06 22 0 29 61 W 6 1 266 W 6 1092 P 03/13-07 22 0 31 59 W 3 1 348 W 5 1128 P 03/13-08 22 0 35 53 W 2 2 3 1 W 9 431 W 3 1164 P 03/13-09 22 0 40 46 SW 2 1 1095 SW 5 5404 P 03/13-10 22 0 44 41 S 3 1 1759 SW 6 9644 P 03/13-11 52 0 48 37 SE 5 5 3 1 SW 8 2423 SW 7 13883 P 03/13-12 52 0 51 34 SE 6 1 3203 SW 6 16772 P 03/13-13 52 0 53 32 E 7 1 3984 SW 6 19661 P 03/13-14 52 0 53 31 E 7 7 2 1 SW10 4764 SW 6 22550 P 03/13-15 52 0 53 31 E 7 1 4071 S 5 18227 P 03/13-16 52 0 52 31 E 6 1 3377 SE 5 13904 P 03/13-17 56 0 49 32 E 5 5 2 1 SW10 2684 E 5 9581 P 03/13-18 56 0 47 36 NE 5 1 3443 E 5 11497 P 03/13-19 56 0 44 43 N 6 1 1923 NE 6 6950 P 03/13-20 56 0 40 52 N 6 6 2 1 SE12 403 NE 7 2404 P 03/13-21 56 0 39 57 N 6 1 381 N 7 2381 P 03/13-22 56 0 38 62 N 7 1 359 N 8 2358 P 03/13-23 56 0 36 69 NW 7 7 2 1 SE21 337 N 8 2335 P 03/14-00 56 0 35 73 N 6 1 335 N 7 2120 P 03/14-01 56 0 34 77 N 6 1 333 N 7 1906 P 03/14-02 56 0 33 77 N 5 5 2 1 SE25 331 N 6 1691 P 03/14-03 56 0 32 80 N 5 1 366 N 6 1928 P 03/14-04 56 0 31 82 N 5 1 401 N 6 2166 P 03/14-05 74 10 30 81 N 5 5 2 1 SE29 436 N 7 2403 P 03/14-06 74 10 31 82 N 5 1 768 N 7 4436 P 03/14-07 74 10 31 84 N 5 1 1100 N 7 6469 P 03/14-08 74 10 32 83 N 6 6 2 1 S20 1431 NE 7 8503 P 03/14-09 74 10 34 82 N 7 1 2006 NE 7 13355 P 03/14-10 74 10 35 79 N 8 1 2581 NE 8 18208 P 03/14-11 82 17 37 75 N 9 9 2 1 SE23 3155 NE 8 23061 P 03/14-12 82 17 39 68 N 13 1 3642 NE 9 28236 P 03/14-13 82 17 41 64 NE 12 1 4128 E 9 33411 P 03/14-14 82 17 42 60 NE 12 12 2 1 SE24 4615 E 9 38586 P 03/14-15 82 17 43 58 N 10 1 4590 E 10 41541 F 03/14-16 82 17 43 57 N 10 1 4566 E 12 44495 F 03/14-17 76 10 43 55 N 9 9 2 1 SE21 4541 E 12 47449 F 03/14-18 76 10 41 59 N 9 1 3691 NE 14 42605 F 03/14-19 76 10 39 65 N 10 1 2842 NE 17 37760 P 03/14-20 76 10 37 71 N 10 10 2 1 E14 1992 NE 20 32916 P 03/14-21 76 10 36 77 N 10 1 1772 NE 17 26623 P 03/14-22 76 10 35 80 N 10 1 1553 NE 15 20330 P 03/14-23 76 10 34 83 N 10 10 2 1 E14 1334 NE 13 14037 P 03/15-00 76 10 33 82 N 9 1 1204 NE 8 9737 P 03/15-01 76 10 32 81 N 8 1 1075 N 5 5438 P 03/15-02 76 10 32 80 N 7 7 2 1 E12 946 CALM 1139 P 03/15-03 76 10 31 78 N 6 1 779 CALM 979 P 03/15-04 76 10 30 76 N 3 1 612 CALM 819 P 03/15-05 55 7 30 74 NW 2 2 2 1 E 7 445 CALM 659 P 03/15-06 55 7 31 71 CALM 1 810 CALM 1221 P 03/15-07 55 7 32 71 CALM 1 1175 W 2 1784 P 03/15-08 55 7 33 70 CALM 1 2 1 NE 3 1540 SW 2 2346 P 03/15-09 55 7 36 68 CALM 1 2013 SW 2 3856 P 03/15-10 55 7 39 64 E 2 1 2487 S 2 5367 P 03/15-11 41 4 42 60 E 2 2 2 1 N 6 2960 S 2 6877 P 03/15-12 41 4 44 55 E 2 1 3381 SW 2 7239 P 03/15-13 41 4 46 51 E 2 1 3802 W 2 7602 P 03/15-14 41 4 48 48 E 2 2 2 1 NW13 4223 W 2 7964 P 03/15-15 41 4 48 47 E 2 1 3996 W 2 8295 P 03/15-16 41 4 48 45 E 2 1 3769 NW 2 8625 P 03/15-17 33 0 48 44 E 2 2 2 1 NW15 3541 NW 3 8956 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...BOULDER COUNTY SHERIFF S OFFICE REASON FOR REQUEST...PRESCRIBED .TAG 20100313.HAYST.02/BOU