FNUS75 KBOU 311427 FWSBOU SPOT FORECAST FOR SHADED FUELS BREAK...USFS NATIONAL WEATHER SERVICE DENVER CO 827 AM MDT TUE MAR 31 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WILL BE ABOUT 2-5% DRIER AND 6-8 DEGREES WARMER TODAY AS NORTHWEST FLOW ALOFT AND LOWER PRESSURE OVER THE PLAINS CONTRIBUTE TO A SLIGHT DOWNSLOPE PATTERN. GOOD RH RECOVERY TONIGHT AS AIRMASS MOISTENS WITH NEXT SYSTEM APPROACHING. EXPECT SNOW TO START WEDNESDAY MORNING AND AND END AROUND MIDNIGHT. THURSDAY WILL WARM AND DRY AGAIN AS AN UPPER RIDGE MOVES OVER THE AREA. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%). MAX TEMPERATURE.....42. MIN HUMIDITY........16%. 20-FOOT WINDS.......WEST 12-18 MPH. GUSTS UP TO 25 MPH UNTIL LATE AFTERNOON. TRANSPORT WINDS.....NORTHWEST 24-32 MPH. MIXING HEIGHT.......2800-3800 FT AGL UNTIL 1000. 8000-9000 FT AGL AFTER 1200. SMOKE DISPERSAL.....FAIR UNTIL 0800...THEN GOOD UNTIL 1000...THEN EXCELLENT. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(50-60%). SLIGHT CHANCE OF SNOW TOWARD MORNING. MIN TEMPERATURE.....19. MAX HUMIDITY........72%. 20-FOOT WINDS.......WEST 8-12 MPH UNTIL 2400...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH UNTIL 0300...THEN WEST 8-12 MPH. TRANSPORT WINDS.....WEST 24-32 MPH. MIXING HEIGHT.......5400-6400 FT AGL UNTIL 2100. 2000-3000 FT AGL AFTER 2400. SMOKE DISPERSAL.....EXCELLENT UNTIL 2000. FAIR AFTER 0500. .WEDNESDAY... SKY/WEATHER.........CLOUDY. SNOW LIKELY. MAX TEMPERATURE.....38. MIN HUMIDITY........32%. 20-FOOT WINDS.......NORTHWEST 9-15 MPH. GUSTS UP TO 20 MPH LATE IN THE AFTERNOON. TRANSPORT WINDS.....WEST 17-28 MPH. MIXING HEIGHT.......1200-2200 FT AGL UNTIL 0900. 10400-11000 FT AGL AFTER 1500. SMOKE DISPERSAL.....POOR UNTIL 0700. EXCELLENT AFTER 1400. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600... THEN SLIGHT CHANCE OF SNOW AFTER 1800. LOWS AROUND 18. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 8 MPH. .FRIDAY...MOSTLY CLOUDY. CHANCE OF SNOW. CHANCE OF RAIN AFTER 1200. LOWS IN THE MID 20S. HIGHS IN THE UPPER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...CLOUDY. CHANCE OF SNOW. COLDER. LOWS IN THE MID 20S. HIGHS IN THE UPPER 30S. 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 03/31-08 57 0 19 53 W 15 1 3410 NW 28 77786 G 03/31-09 57 0 26 40 W 15 24 2 1 NW30 4364 NW 25 96396 G 03/31-10 57 0 32 30 W 15 1 6150 NW 28 158386 E 03/31-11 57 0 38 23 W 15 1 7936 NW 31 220375 E 03/31-12 57 0 40 20 W 15 24 2 1 NW51 9721 NW 33 282365 E 03/31-13 57 0 42 19 W 15 1 9536 NW 32 270625 E 03/31-14 57 0 42 17 W 14 1 9350 NW 32 258885 E 03/31-15 57 0 41 19 W 13 13 2 1 NW47 9164 NW 31 247145 E 03/31-16 57 0 41 20 W 12 1 8234 NW 30 218369 E 03/31-17 57 0 39 21 W 10 1 7304 W 30 189594 E 03/31-18 58 12 35 27 W 9 9 2 1 W43 6374 W 29 160818 E 03/31-19 58 12 31 33 W 9 1 5825 W 28 143363 V 03/31-20 58 12 27 40 W 8 1 5276 W 28 125908 V 03/31-21 58 12 26 46 W 8 8 2 1 W38 4727 W 26 108452 V 03/31-22 58 12 24 52 W 7 1 4164 W 25 93554 G 03/31-23 58 12 23 59 W 6 1 3600 W 25 78655 G 04/01-00 58 12 21 67 W 6 6 2 1 W31 3037 W 24 63756 G 04/01-01 58 12 21 68 W 6 1 2861 W 25 63800 G 04/01-02 58 12 21 66 W 7 1 2685 W 28 63844 G 04/01-03 58 12 20 68 W 8 8 2 1 NW44 2509 W 29 63887 G 04/01-04 58 12 20 70 W 9 1 2138 W 30 55179 F 04/01-05 58 12 19 72 W 12 1 1767 W 31 46472 F 04/01-06 98 75 23 55 W 12 12 3 1 W30 460 W 25 10212 P 04/01-07 98 75 27 49 W 13 1 1615 W 26 40004 F 04/01-08 98 75 30 44 W 13 1 2769 W 28 69796 G 04/01-09 98 75 34 38 W 13 13 3 1 W32 3924 W 29 99587 G 04/01-10 98 75 38 32 W 9 1 4439 W 26 101146 V 04/01-11 98 75 36 34 W 13 1 4954 W 24 102704 V 04/01-12 97 75 34 36 W 9 9 3 1 W38 5469 W 22 104262 V 04/01-13 97 75 32 40 W 10 1 7321 W 21 131972 V 04/01-14 97 75 30 45 W 13 1 9173 W 21 159681 E 04/01-15 97 75 28 51 NW 14 22 3 1 W26 11024 W 20 187391 E 04/01-16 97 75 26 56 NW 14 1 10761 W 18 170709 E 04/01-17 97 75 24 61 NW 14 1 10498 W 17 154027 E 04/01-18 99 65 22 67 NW 13 13 2 1 W16 10236 W 15 137346 V 04/01-19 99 65 20 76 NW 14 1 8601 NW 20 131855 V 04/01-20 99 65 20 80 NW 14 1 6967 NW 23 126364 V 04/01-21 99 65 20 82 NW 15 24 2 1 N12 5333 N 26 120874 V 04/01-22 99 65 20 82 NW 14 1 5265 N 25 113829 V 04/01-23 99 65 20 80 NW 13 1 5197 N 24 106783 V 04/02-00 80 23 20 78 NW 12 12 2 1 N 3 5130 N 22 99738 G 04/02-01 80 23 19 75 NW 10 1 4937 N 20 86650 G 04/02-02 80 23 19 72 W 9 1 4745 N 17 73562 G 04/02-03 80 23 19 70 W 8 8 2 1 NW20 4552 N 15 60474 G 04/02-04 80 23 19 69 W 8 1 4187 NW 15 53464 F 04/02-05 80 23 18 67 W 8 1 3822 NW 14 46454 F 04/02-06 55 0 19 64 W 8 8 2 1 NW52 3457 NW 13 39444 P 04/02-07 55 0 22 59 W 8 1 3803 NW 16 55897 F 04/02-08 55 0 25 54 W 7 1 4148 NW 20 72350 G 04/02-09 55 0 29 47 W 7 7 2 1 NW54 4494 NW 23 88803 G 04/02-10 55 0 33 37 W 7 1 4821 NW 23 97096 G 04/02-11 55 0 37 30 W 8 1 5147 NW 23 105388 V 04/02-12 60 0 40 25 W 9 9 2 1 NW48 5473 NW 24 113680 V 04/02-13 60 0 43 23 W 8 1 5673 NW 23 114208 V 04/02-14 60 0 45 21 W 8 1 5872 NW 23 114735 V 04/02-15 60 0 46 21 W 8 8 2 1 NW39 6072 W 22 115262 V 04/02-16 60 0 46 21 W 8 1 5948 W 23 119832 V 04/02-17 60 0 45 22 W 8 1 5825 W 24 124402 V 04/02-18 56 7 47 21 W 9 9 2 1 W41 5702 W 26 128972 V 04/02-19 56 7 45 27 W 6 1 5180 W 25 115747 V 04/02-20 56 7 42 31 W 6 1 4659 W 25 102522 V 04/02-21 56 7 39 38 W 6 6 2 1 W37 4138 W 25 89298 G 04/02-22 56 7 36 44 W 7 1 3100 W 23 65749 G 04/02-23 56 7 33 50 W 7 1 2063 W 22 42201 F 04/03-00 41 7 30 55 W 7 7 2 1 W36 1025 W 21 18653 P 04/03-01 41 7 29 58 W 7 1 787 W 18 13735 P 04/03-02 41 7 27 61 W 7 1 550 W 16 8817 P 04/03-03 41 7 27 61 W 7 7 2 1 W30 312 W 14 3899 P 04/03-04 41 7 26 60 W 7 1 316 W 16 4307 P 04/03-05 41 7 27 58 W 7 1 319 W 17 4714 P 04/03-06 67 7 28 54 W 7 7 2 1 W46 323 W 18 5122 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 20090331.SHADE.01/BOU