FNUS75 KBOU 261526 FWSBOU SPOT FORECAST FOR SHADED FUELS BREAK...USFS NATIONAL WEATHER SERVICE DENVER CO 826 AM MST MON JAN 26 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER LEVEL TROUGH WILL MOVE ACROSS COLORADO TONIGHT INTO TUESDAY WITH NORTHERLY FLOW ALOFT BEHIND IT. THE BEST SNOWFALL WITH THIS STORM FOR THE BURN AREA WILL BE LATE AFTERNOON AND TONIGHT. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........CLOUDY...WITH A CHANCE OF SNOW UNTIL 1600...THEN AREAS OF SNOW. MAX TEMPERATURE.....6-15. MIN HUMIDITY........60-70%. 20-FOOT WINDS.......SOUTHEAST 5-10 MPH. TRANSPORT WINDS.....SOUTHWEST 16-24 MPH UNTIL 1200...THEN 4-12 MPH. MIXING HEIGHT.......1200-2200 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........CLOUDY. OCCASIONAL SNOW UNTIL 2300...THEN SNOW LIKELY UNTIL 0500. MIN TEMPERATURE.....-7 TO ZERO MAX HUMIDITY........100%. 20-FOOT WINDS.......SOUTH 7-8 MPH UNTIL 0300...THEN WEST 5-6 MPH. TRANSPORT WINDS.....SOUTH 4-8 MPH UNTIL 2400...THEN WEST. MIXING HEIGHT.......800-1800 FT AGL UNTIL 0200...THEN 200 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1100...THEN PARTLY CLOUDY(50-60%). MAX TEMPERATURE.....20-25. MIN HUMIDITY........40-50%. 20-FOOT WINDS.......WEST 12-18 MPH. TRANSPORT WINDS.....NORTHWEST 8-16 MPH UNTIL 1200...THEN 20-28 MPH. MIXING HEIGHT.......3200-4200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1100. GOOD AFTER 1300. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...MOSTLY CLOUDY. AREAS OF BLOWING SNOW AFTER 1800. SLIGHT CHANCE OF SNOW AFTER 1800. NOT AS COOL. LOWS AROUND 15. HIGHS IN THE LOWER 40S. WEST WINDS AROUND 17 MPH WITH GUSTS TO AROUND 30 MPH. .THURSDAY...MOSTLY CLOUDY. AREAS OF BLOWING SNOW UNTIL 0600. SLIGHT CHANCE OF SNOW UNTIL 1800. LOWS AROUND 17. HIGHS IN THE MID 30S. NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND 30 MPH. .FRIDAY...PARTLY CLOUDY. NOT AS COOL. LOWS AROUND 17. HIGHS IN THE MID 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 01/26-07 100 70 20 70 S 3 1 1099 W 23 21473 P 01/26-08 100 70 20 72 S 3 3 2 1 W83 1125 W 22 21856 P 01/26-09 100 70 20 74 S 3 1 1085 SW 20 19063 P 01/26-10 100 70 20 74 S 5 1 1046 SW 17 16270 P 01/26-11 100 70 20 76 S 6 6 2 1 SW63 1006 SW 15 13477 P 01/26-12 100 70 20 73 S 6 1 1403 SW 14 16151 P 01/26-13 100 70 20 70 S 5 1 1799 SW 13 18824 P 01/26-14 100 70 20 69 S 3 3 2 1 SW56 2195 SW 12 21497 P 01/26-15 100 70 19 68 SE 3 1 2078 SW 9 17232 P 01/26-16 100 70 18 71 SE 3 1 1961 S 7 12966 P 01/26-17 100 80 13 93 SE 2 2 2 1 SW44 1844 S 6 8700 P 01/26-18 100 80 11 100 SE 3 1 1907 S 6 8569 P 01/26-19 100 80 8 100 SE 3 1 1970 S 5 8439 P 01/26-20 100 80 6 100 SE 2 2 2 1 SW26 2034 S 5 8309 P 01/26-21 100 80 4 100 SE 3 1 1678 S 6 7364 P 01/26-22 100 80 3 100 S 2 1 1322 SW 6 6420 P 01/26-23 92 60 1 100 S 2 2 2 1 W25 966 SW 7 5476 P 01/27-00 92 60 0 100 S 3 1 735 SW 6 4064 P 01/27-01 92 60 -1 100 SW 3 1 503 SW 6 2652 P 01/27-02 92 60 -1 100 SW 3 3 2 1 W14 272 SW 6 1240 P 01/27-03 92 60 -2 100 W 3 1 237 W 6 1094 P 01/27-04 92 60 -2 100 W 5 1 202 W 6 949 P 01/27-05 76 0 -2 100 W 5 5 3 1 W15 167 W 6 803 P 01/27-06 76 0 -2 100 W 5 1 233 W 7 1366 P 01/27-07 76 0 0 100 W 5 1 244 W 8 1630 P 01/27-08 76 0 3 100 W 5 5 3 1 W16 255 W 8 1893 P 01/27-09 76 0 10 83 W 6 1 1052 W 12 13817 P 01/27-10 76 0 13 74 W 6 1 1848 NW 14 25741 P 01/27-11 58 0 17 66 W 7 7 3 1 NW14 2644 NW 16 37665 P 01/27-12 58 0 19 58 W 8 1 3455 NW 18 57612 F 01/27-13 58 0 21 53 W 10 1 4267 NW 21 77559 G 01/27-14 58 0 22 49 W 12 12 2 1 NW10 5078 NW 22 97506 G 01/27-15 58 0 22 48 W 14 1 4414 NW 24 89437 G 01/27-16 58 0 21 48 W 15 1 3750 NW 25 81368 G 01/27-17 60 0 21 48 W 16 16 2 1 N25 3086 NW 28 73299 G 01/27-18 60 0 20 47 W 16 1 2503 NW 28 59147 F 01/27-19 60 0 19 47 W 16 1 1919 NW 26 44995 F 01/27-20 60 0 18 46 W 16 16 4 1 N55 1336 NW 26 30843 P 01/27-21 60 0 17 47 W 16 1 1176 NW 26 27400 P 01/27-22 60 0 17 47 W 15 1 1016 NW 28 23956 P 01/27-23 60 0 16 47 W 15 15 4 1 NW32 857 W 28 20512 P 01/28-00 60 0 15 50 W 15 1 759 W 26 17847 P 01/28-01 60 0 15 53 W 15 1 662 NW 26 15183 P 01/28-02 60 0 15 56 W 15 15 2 1 NW43 565 NW 25 12518 P 01/28-03 60 0 15 56 W 15 1 508 W 25 11132 P 01/28-04 60 0 15 57 W 15 1 451 W 25 9747 P 01/28-05 68 0 15 57 W 15 15 2 1 NW36 393 W 24 8361 P 01/28-06 68 0 15 64 W 15 1 666 W 29 18737 P 01/28-07 68 0 17 65 W 16 1 940 W 33 29112 P 01/28-08 68 0 21 62 W 17 26 2 1 NW37 1213 NW 38 39487 P 01/28-09 68 0 26 53 W 17 1 2577 NW 37 82961 G 01/28-10 68 0 30 48 W 18 1 3941 NW 37 126436 V 01/28-11 68 0 34 43 W 20 30 2 1 NW31 5305 NW 37 169910 E 01/28-12 68 0 37 40 W 20 1 6383 NW 35 187016 E 01/28-13 68 0 40 37 W 20 1 7462 NW 32 204123 E 01/28-14 68 0 41 36 W 18 28 2 1 NW24 8541 NW 30 221229 E 01/28-15 68 0 40 35 W 18 1 7521 NW 30 194911 E 01/28-16 68 0 39 35 W 17 1 6500 NW 30 168592 E 01/28-17 83 10 35 37 W 16 16 2 1 NW32 5480 NW 30 142274 V 01/28-18 83 10 32 41 W 17 1 5370 NW 30 141614 V 01/28-19 83 10 30 46 W 17 1 5260 NW 31 140953 V 01/28-20 83 10 28 48 W 17 26 2 1 NW45 5151 NW 31 140293 V 01/28-21 83 10 26 51 W 17 1 4826 NW 32 132706 V 01/28-22 83 10 25 55 W 18 1 4501 W 32 125120 V 01/28-23 83 10 23 58 W 18 28 2 1 NW68 4176 W 32 117533 V 01/29-00 83 10 22 61 W 18 1 3817 W 31 103903 V 01/29-01 83 10 21 64 W 20 1 3458 NW 30 90273 G 01/29-02 83 10 20 65 W 20 30 2 1 NW63 3099 NW 29 76642 G 01/29-03 83 10 20 66 W 20 1 3158 NW 28 75951 G 01/29-04 83 10 20 67 W 20 1 3217 NW 26 75260 G 01/29-05 80 10 20 67 W 18 28 2 1 N51 3276 NW 26 74568 G 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 20090126.SHADE.01/BOU