FNUS75 KBOU 271546 FWSBOU SPOT FORECAST FOR SHADED FUELS BREAK...USFS NATIONAL WEATHER SERVICE DENVER CO 845 AM MST TUE JAN 27 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...UPPER LEVEL TROUGH ASSOCIATED WITH YESTERDAY'S STORM MOVING EAST WITH SOME LEE TROUGHING DEVELOPING TODAY WITH BRISK NORTHWEST FLOW NEAR MOUNTAIN TOP LEVEL. EXPECT NORTHWEST WINDS TO BREAK THROUGH LATER THIS MORNING. WINDS EXPECTED TO PERSIST TONIGHT AS WELL ALTHOUGH COULD CUT OFF FOR AWHILE AT YOUR LOCATION THOUGH WOULD NOT EXPECT MUCH OF AN INVERSION TO DEVELOP. A WEAK DISTURBANCE IN THE NW FLOW WILL MOVE ACROSS THE AREA TOMORROW SO WEST TO NW WINDS EXPECTED AGAIN AND GUSTY AT TIMES. SNOW SHOWERS WILL INCREASE IN THE MOUNTAINS ON WEDNESDAY AND SOME LIGHT SNOW SHOWERS ARE POSSIBLE AT YOUR LOCATION WITH MAINLY THE SNOW BLOWING OVER THE DIVIDE. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1400...THEN PARTLY CLOUDY(50-60%). MAX TEMPERATURE.....23. MIN HUMIDITY........42%. 20-FOOT WINDS.......WEST 14-24 MPH WITH GUSTS TO AROUND 35 MPH. TRANSPORT WINDS.....WEST 12-20 MPH UNTIL 1200...THEN NORTHWEST 21-32 MPH. MIXING HEIGHT.......3200-4200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000. GOOD AFTER 1400. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 2400...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER 0500. MIN TEMPERATURE.....14. MAX HUMIDITY........67%. 20-FOOT WINDS.......WEST 16-24 MPH WITH GUSTS TO AROUND 35 MPH. TRANSPORT WINDS.....NORTHWEST 29-36 MPH. MIXING HEIGHT.......600-1600 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2000. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1700...THEN SLIGHT CHANCE OF SNOW SHOWERS. MAX TEMPERATURE.....39. MIN HUMIDITY........40%. 20-FOOT WINDS.......WEST 14-20 MPH WITH GUSTS TO AROUND 30 MPH. TRANSPORT WINDS.....NORTHWEST 36-40 MPH. MIXING HEIGHT.......1600-2600 FT AGL UNTIL 1100...THEN 4600-5600 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1100. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS UNTIL 1800. LOWS AROUND 16. HIGHS IN THE MID 30S. WEST WINDS AROUND 9 MPH. .FRIDAY...PARTLY CLOUDY. NOT AS COOL. LOWS AROUND 17. HIGHS IN THE UPPER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 8 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 01/27-08 75 0 2 100 W 8 8 2 1 W29 157 W 10 1447 P 01/27-09 75 0 6 89 W 10 1 1055 W 15 21144 P 01/27-10 75 0 11 82 W 13 1 1954 W 20 40841 F 01/27-11 78 0 15 72 W 15 25 2 1 N15 2853 NW 24 60538 G 01/27-12 78 0 18 63 W 16 1 3591 NW 24 72860 G 01/27-13 78 0 21 55 W 17 1 4329 NW 23 85182 G 01/27-14 58 0 22 50 W 18 31 2 1 NW21 5067 NW 22 97503 G 01/27-15 58 0 22 47 W 20 1 4387 NW 25 93107 G 01/27-16 58 0 21 45 W 21 1 3706 NW 29 88711 G 01/27-17 42 0 21 42 W 21 37 4 1 N58 3026 NW 32 84315 G 01/27-18 42 0 20 45 W 20 1 2381 NW 32 65979 G 01/27-19 42 0 19 47 W 20 1 1736 NW 31 47643 F 01/27-20 42 0 18 49 W 18 33 4 1 N43 1090 NW 31 29307 P 01/27-21 42 0 17 51 W 18 1 993 NW 31 26677 P 01/27-22 42 0 17 53 W 20 1 895 W 31 24047 P 01/27-23 72 0 16 55 W 21 37 2 1 NW30 798 W 31 21417 P 01/28-00 72 0 15 57 W 21 1 687 W 32 19165 P 01/28-01 72 0 15 57 W 21 1 576 W 35 16912 P 01/28-02 72 0 15 58 W 21 37 2 1 NW45 465 W 37 14659 P 01/28-03 72 0 15 58 W 21 1 419 W 35 12798 P 01/28-04 72 0 15 59 W 20 1 373 W 33 10936 P 01/28-05 69 20 15 59 W 20 30 2 1 NW24 327 W 32 9074 P 01/28-06 69 20 15 66 W 20 1 527 W 35 16425 P 01/28-07 69 20 17 67 W 20 1 727 W 37 23777 P 01/28-08 69 20 20 64 W 20 30 2 1 NW58 926 W 39 31128 P 01/28-09 69 20 24 59 W 18 1 2102 W 39 73108 G 01/28-10 69 20 28 55 W 17 1 3278 W 40 115088 V 01/28-11 69 20 31 50 W 16 24 2 1 NW37 4453 W 40 157068 E 01/28-12 69 20 34 46 W 16 1 4847 W 39 162827 E 01/28-13 69 20 36 42 W 16 1 5240 NW 37 168586 E 01/28-14 69 20 37 40 W 17 26 2 1 NW45 5634 NW 36 174345 E 01/28-15 69 20 37 40 W 18 1 5527 NW 36 169632 E 01/28-16 69 20 35 41 W 18 1 5419 NW 35 164920 E 01/28-17 74 15 32 46 W 18 28 2 1 NW44 5312 NW 35 160208 E 01/28-18 74 15 30 50 W 17 1 5209 NW 33 152382 E 01/28-19 74 15 28 54 W 15 1 5106 NW 32 144555 V 01/28-20 74 15 26 58 W 13 20 2 1 NW45 5003 NW 31 136729 V 01/28-21 74 15 24 62 W 10 1 4867 NW 29 121788 V 01/28-22 74 15 23 66 W 8 1 4731 NW 25 106848 V 01/28-23 80 15 22 69 W 7 7 2 1 NW35 4595 NW 23 91908 G 01/29-00 80 15 21 71 W 7 1 4372 NW 25 94492 G 01/29-01 80 15 20 73 W 7 1 4148 NW 28 97076 G 01/29-02 80 15 19 73 W 8 8 2 1 NW33 3925 NW 29 99660 G 01/29-03 80 15 19 73 W 9 1 3679 NW 30 95836 G 01/29-04 80 15 19 73 W 10 1 3433 NW 31 92012 G 01/29-05 80 10 19 72 W 10 10 2 1 N67 3188 NW 32 88188 G 01/29-06 80 10 19 71 W 10 1 3223 NW 30 84143 G 01/29-07 80 10 19 70 W 9 1 3259 NW 29 80098 G 01/29-08 80 10 21 64 W 9 9 2 1 N59 3295 NW 26 76053 G 01/29-09 80 10 24 57 W 9 1 3955 NW 26 88496 G 01/29-10 80 10 27 52 NW 9 1 4615 NW 25 100939 V 01/29-11 80 10 29 47 NW 9 9 2 1 N45 5275 NW 24 113382 V 01/29-12 80 10 31 43 NW 9 1 5760 NW 24 119793 V 01/29-13 80 10 32 40 NW 10 1 6245 NW 23 126204 V 01/29-14 80 10 33 38 NW 10 10 2 1 NW41 6730 NW 23 132614 V 01/29-15 80 10 32 37 NW 10 1 6114 NW 23 123259 V 01/29-16 80 10 31 38 NW 10 1 5498 NW 24 113904 V 01/29-17 38 0 28 42 NW 10 10 2 1 N54 4882 N 24 104549 V 01/29-18 38 0 26 46 NW 10 1 3799 NW 23 79169 G 01/29-19 38 0 24 49 NW 9 1 2715 NW 22 53789 F 01/29-20 38 0 22 52 NW 9 9 2 1 N61 1631 NW 20 28409 P 01/29-21 38 0 21 55 W 9 1 1289 NW 21 22739 P 01/29-22 38 0 19 58 W 8 1 948 NW 21 17070 P 01/29-23 38 0 18 59 W 8 8 2 1 N62 606 NW 22 11401 P 01/30-00 38 0 17 61 W 8 1 488 NW 20 8652 P 01/30-01 38 0 16 62 W 8 1 370 NW 17 5903 P 01/30-02 38 0 16 62 W 8 8 2 1 N59 252 NW 15 3154 P 01/30-03 38 0 15 63 W 8 1 234 NW 14 2809 P 01/30-04 38 0 15 63 W 9 1 215 NW 13 2465 P 01/30-05 44 0 15 63 W 9 9 2 1 N62 197 NW 13 2120 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...DOUG BROMBERGER REASON FOR REQUEST...PRESCRIBED .TAG 20090127.SHADE.01/BOU