FNUS75 KBOU 291542 FWSBOU SPOT FORECAST FOR SHADED FUELS BREAK...USFS NATIONAL WEATHER SERVICE DENVER CO 841 AM MST THU JAN 29 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...STRONG NORTHERLY FLOW ALOFT WILL COVER THE AREA TODAY AND THIS EVENING. BY FRIDAY THE FLOW ALOFT WILL BE NORTHWESTERLY AND SIGNIFICANTLY WEAKER AS AN UPPER RIDGE BUILDS IN FOR THE SOUTHWEST. THE AIRMASS WILL CONTINUE TO DRY OUT TODAY. LOW LEVEL WINDS WILL BE ON THE DECREASE AS WELL. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY. MAX TEMPERATURE.....30-36. MIN HUMIDITY........25-35%. 20-FOOT WINDS.......NORTHWEST 13-20 MPH. TRANSPORT WINDS.....NORTHWEST 20-28 MPH. MIXING HEIGHT.......3800-4800 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 0900...THEN GOOD UNTIL 1100...THEN VERY GOOD UNTIL 1600...THEN GOOD. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....15-20. MAX HUMIDITY........55-65%. 20-FOOT WINDS.......WEST 5-10 MPH. TRANSPORT WINDS.....WEST 12-20 MPH. MIXING HEIGHT.......1600-2600 FT AGL UNTIL 2100...THEN 200-1000 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 1900. POOR AFTER 2000. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....45-50. MIN HUMIDITY........15-25%. 20-FOOT WINDS.......WEST 9-15 MPH. TRANSPORT WINDS.....NORTHWEST 8-16 MPH. MIXING HEIGHT.......1000-2000 FT AGL UNTIL 1100...THEN 3600-4600 FT AGL UNTIL 1700...THEN 2000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1300...THEN FAIR UNTIL 1600...THEN POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...MOSTLY CLEAR. LOWS AROUND 20. HIGHS IN THE UPPER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...MOSTLY CLOUDY. COLDER. LOWS AROUND 16. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...MOSTLY CLEAR. LOWS AROUND 14. HIGHS IN THE LOWER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR SHADED FUELS BREAK. +++ 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 01/29-08 71 4 14 65 W 12 12 2 1 N21 2174 NW 30 55681 F 01/29-09 71 4 18 55 W 12 1 3122 NW 26 68975 G 01/29-10 71 4 22 48 NW 12 1 4070 NW 24 82269 G 01/29-11 67 0 25 41 NW 12 12 2 1 NW43 5018 NW 22 95563 G 01/29-12 67 0 28 37 NW 14 1 5212 NW 24 109628 V 01/29-13 67 0 30 34 NW 16 1 5405 NW 26 123692 V 01/29-14 67 0 31 32 NW 18 28 2 1 N47 5599 NW 29 137756 V 01/29-15 67 0 31 33 NW 18 1 4833 NW 28 117233 V 01/29-16 67 0 29 36 NW 16 1 4068 NW 28 96710 G 01/29-17 30 0 27 39 NW 15 23 2 1 N59 3302 NW 26 76186 G 01/29-18 30 0 26 41 NW 15 1 2643 NW 24 58728 F 01/29-19 30 0 24 43 W 14 1 1983 NW 23 41270 F 01/29-20 30 0 23 44 W 14 21 2 1 N58 1324 NW 21 23812 P 01/29-21 30 0 21 46 W 14 1 1018 NW 18 17509 P 01/29-22 30 0 20 47 W 13 1 712 W 16 11206 P 01/29-23 30 0 19 49 W 13 20 2 1 N52 406 W 14 4903 P 01/30-00 30 0 18 50 W 13 1 332 W 14 3961 P 01/30-01 30 0 18 52 W 13 1 258 W 14 3019 P 01/30-02 30 0 17 53 W 13 18 2 1 N46 184 W 13 2077 P 01/30-03 30 0 17 54 W 13 1 185 W 13 2103 P 01/30-04 30 0 17 55 W 13 1 186 W 13 2129 P 01/30-05 13 0 17 56 W 13 13 2 1 NW32 186 W 14 2156 P 01/30-06 13 0 17 58 W 13 1 255 W 13 2753 P 01/30-07 13 0 20 54 W 13 1 324 W 13 3351 P 01/30-08 13 0 24 46 W 13 13 2 1 NW31 393 W 12 3948 P 01/30-09 13 0 30 37 W 12 1 1433 NW 12 12882 P 01/30-10 13 0 34 32 W 10 1 2474 NW 10 21815 P 01/30-11 13 0 39 27 W 9 9 2 1 NW23 3515 NW 10 30748 P 01/30-12 13 0 42 24 W 8 1 4059 NW 10 38730 P 01/30-13 13 0 45 21 W 8 1 4604 NW 12 46711 F 01/30-14 13 0 46 20 W 8 8 3 1 NW12 5148 NW 13 54693 F 01/30-15 13 0 45 20 W 8 1 4096 NW 10 40702 F 01/30-16 13 0 44 21 W 9 1 3044 NW 9 26712 P 01/30-17 11 0 40 26 W 9 9 3 1 NW10 1992 NW 7 12721 P 01/30-18 11 0 37 30 W 9 1 1425 NW 8 9243 P 01/30-19 11 0 35 34 W 9 1 858 W 8 5765 P 01/30-20 11 0 33 39 W 9 9 4 1 NW 8 291 W 9 2288 P 01/30-21 11 0 31 43 W 8 1 246 W 8 1868 P 01/30-22 11 0 29 48 W 7 1 202 W 8 1448 P 01/30-23 11 0 27 52 SW 7 7 4 1 NW 6 158 W 8 1028 P 01/31-00 11 0 26 54 SW 6 1 151 W 7 977 P 01/31-01 11 0 25 55 SW 6 1 143 W 7 926 P 01/31-02 11 0 24 56 SW 6 6 4 1 W 7 136 W 7 874 P 01/31-03 11 0 24 56 SW 7 1 137 W 8 922 P 01/31-04 11 0 24 55 W 7 1 139 W 8 969 P 01/31-05 15 0 24 55 W 7 7 5 1 NW 9 140 W 8 1016 P 01/31-06 15 0 24 55 W 7 1 170 W 8 1277 P 01/31-07 15 0 25 53 W 8 1 200 W 9 1538 P 01/31-08 15 0 29 47 W 8 8 5 1 NW12 229 W 9 1798 P 01/31-09 15 0 34 40 W 8 1 1154 W 12 14433 P 01/31-10 15 0 37 36 W 8 1 2079 NW 13 27067 P 01/31-11 30 0 41 32 W 8 8 5 1 NW10 3003 NW 15 39702 P 01/31-12 30 0 45 28 W 8 1 3855 NW 15 51867 F 01/31-13 30 0 47 25 W 7 1 4708 NW 16 64032 G 01/31-14 30 0 48 24 W 7 7 5 1 NW14 5560 NW 16 76197 G 01/31-15 30 0 47 24 W 7 1 4581 NW 18 67865 G 01/31-16 30 0 44 26 W 6 1 3603 W 21 59533 F 01/31-17 30 0 39 32 W 6 6 5 1 NW16 2625 W 23 51200 F 01/31-18 30 0 36 37 W 6 1 1895 W 20 35982 P 01/31-19 30 0 33 41 W 7 1 1164 W 17 20764 P 01/31-20 30 0 30 46 W 7 7 5 1 NW21 434 W 15 5545 P 01/31-21 30 0 27 52 W 7 1 354 W 14 4335 P 01/31-22 30 0 25 57 W 8 1 273 W 13 3124 P 01/31-23 64 0 23 60 W 8 8 4 1 W24 193 W 12 1913 P 02/01-00 64 0 21 65 W 8 1 189 W 12 1843 P 02/01-01 64 0 20 68 W 8 1 186 W 12 1773 P 02/01-02 64 0 19 72 W 8 8 2 1 W39 183 W 10 1703 P 02/01-03 64 0 19 74 W 7 1 222 W 12 2326 P 02/01-04 64 0 18 76 W 7 1 261 W 13 2948 P 02/01-05 64 5 18 71 W 7 7 2 1 NW37 300 W 14 3571 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 $$ FORECASTER...WFO BOULDER REQUESTED BY...KRIS HEINY REASON FOR REQUEST...PRESCRIBED .TAG 20090129.SHADE.01/BOU