FNUS75 KBOU 072355 FWSBOU SPOT FORECAST FOR RALSTON ROOST...USFS NATIONAL WEATHER SERVICE DENVER CO 455 PM MST MON FEB 7 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER LEVEL TROUGH AND COLD FRONT WILL MOVE ACROSS THE AREA TONIGHT...BRINGING SNOW AND COLDER TEMPERATURES. SURFACE WINDS WILL SHIFT TO THE NORTHEAST WITH THE FRONT PASSING...THEN BACK TO THE NORTHWEST TUESDAY NIGHT. STRONGER WESTERLY WINDS WILL MIX DOWN ON WEDNESDAY AFTERNOON. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........CLOUDY. CHANCE OF SNOW UNTIL 2300...THEN SNOW. MIN TEMPERATURE.....-5 TO 0 MAX HUMIDITY........90-100%. 20-FOOT WINDS.......BREEZY. NORTHWEST WINDS 15-25 MPH UNTIL 0300...THEN NORTHEAST 10-15 MPH. TRANSPORT WINDS.....WEST 25-36 MPH UNTIL 2400...THEN NORTHEAST 5-16 MPH. MIXING HEIGHT.......1200 FT AGL UNTIL 1900...THEN BELOW 1000 FT AGL UNTIL 0200...THEN 1000-1800 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 1900...THEN POOR. HAINES INDEX........3 VERY LOW. .TUESDAY... SKY/WEATHER.........CLOUDY WITH SNOW LIKELY. MAX TEMPERATURE.....0 TO 5. MIN HUMIDITY........80-90%. 20-FOOT WINDS.......NORTHEAST WINDS 7-13 MPH. TRANSPORT WINDS.....NORTHEAST 4-12 MPH. MIXING HEIGHT.......1800-2400 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. NOT AS COLD. LOWS AROUND 7 BELOW. HIGHS AROUND 16. WEST WINDS AROUND 11 MPH WITH GUSTS TO 35 MPH. .THURSDAY...PARTLY CLOUDY. LOWS AROUND 3. HIGHS IN THE MID 20S. WEST WINDS AROUND 14 MPH WITH GUSTS TO 30 MPH. .FRIDAY...PARTLY CLOUDY. LOWS AROUND 14. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 14 MPH WITH GUSTS TO 25 MPH. FIRE WEATHER TABLE FOR RALSTON ROOST. +++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE FORECAST DATABASE. VALUES IN THE TABLE MAY VARY SLIGHTLY FROM INFORMATION IN THE NARRATIVE 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 02/07-16 67 34 31 39 W 23 1 1811 W 47 75006 G 02/07-17 88 40 28 44 W 22 33 2 1 W58 1548 W 47 63690 G 02/07-18 88 40 25 50 W 22 1 1166 W 43 46130 F 02/07-19 88 40 23 55 W 21 1 784 W 37 28570 P 02/07-20 88 40 21 58 W 21 31 3 1 W38 402 W 31 11010 P 02/07-21 88 40 20 61 W 20 1 371 W 26 8874 P 02/07-22 88 40 19 63 NW 20 1 339 NW 22 6738 P 02/07-23 100 100 18 65 NW 18 26 3 1 W18 308 NW 17 4602 P 02/08-00 100 100 16 70 N 17 1 545 NW 17 7695 P 02/08-01 100 100 14 76 N 15 1 781 N 16 10787 P 02/08-02 100 100 12 82 N 14 22 3 1 SW32 1018 NE 16 13880 P 02/08-03 100 100 10 87 NE 13 1 1262 NE 13 12115 P 02/08-04 100 100 8 90 NE 13 1 1505 NE 9 10349 P 02/08-05 100 90 4 100 NE 12 17 2 1 W28 1748 NE 6 8583 P 02/08-06 100 90 1 100 NE 12 1 1775 E 6 8795 P 02/08-07 100 90 1 100 NE 10 1 1802 E 6 9007 P 02/08-08 100 90 1 100 NE 10 16 2 1 SW18 1829 E 6 9219 P 02/08-09 100 90 1 95 NE 9 1 1872 E 6 9846 P 02/08-10 100 90 2 88 NE 9 1 1915 E 6 10473 P 02/08-11 100 72 2 82 NE 8 8 2 1 SW18 1958 E 7 11101 P 02/08-12 100 72 2 81 NE 8 1 2078 E 7 12014 P 02/08-13 100 72 1 82 NE 7 1 2199 NE 7 12928 P 02/08-14 98 72 0 84 NE 7 7 2 1 SW14 2319 NE 7 13842 P 02/08-15 98 72 0 85 NE 7 1 2286 NE 8 16536 P 02/08-16 98 72 -1 86 N 7 1 2252 NE 10 19230 P 02/08-17 96 60 -2 86 N 7 7 2 1 W 6 2219 N 12 21924 P 02/08-18 96 60 -2 86 N 7 1 2107 N 12 21180 P 02/08-19 96 60 -3 85 NE 5 1 2062 NE 12 20415 P 02/08-20 96 60 -5 89 NE 5 5 2 1 N13 1883 NE 12 19693 P 02/08-21 96 60 -6 92 NE 5 1 1619 NE 12 15911 P 02/08-22 96 60 -7 95 N 3 1 1355 N 10 12128 P 02/08-23 83 19 -7 96 N 3 3 2 1 N13 1091 N 9 8345 P 02/09-00 83 19 -8 96 N 3 1 864 N 8 6239 P 02/09-01 83 19 -8 93 W 5 1 638 N 7 4133 P 02/09-02 83 19 -9 91 W 6 6 2 1 N14 411 N 6 2027 P 02/09-03 83 19 -9 89 W 7 1 352 N 6 1783 P 02/09-04 83 19 -9 87 W 8 1 293 NW 6 1539 P 02/09-05 63 4 -9 86 W 9 15 2 1 NW23 234 NW 7 1295 P 02/09-06 63 4 -9 88 W 9 1 332 NW 6 1790 P 02/09-07 63 4 -7 83 W 9 1 429 NW 6 2285 P 02/09-08 63 4 -3 73 W 8 13 2 1 NW29 527 NW 6 2780 P 02/09-09 63 4 1 63 W 6 1 1210 NW 8 10189 P 02/09-10 63 4 5 56 W 3 1 1894 NW 9 17598 P 02/09-11 34 4 9 49 W 2 2 2 1 NW31 2577 NW 12 25007 P 02/09-12 34 4 11 44 W 3 1 2902 NW 15 38658 P 02/09-13 34 4 14 41 W 6 1 3227 NW 18 52309 F 02/09-14 34 4 14 40 W 9 15 2 1 NW31 3552 W 22 65961 G 02/09-15 34 4 14 41 W 12 1 3021 W 25 63326 G 02/09-16 34 4 13 43 W 14 1 2491 W 30 60691 G 02/09-17 36 4 11 47 W 16 25 3 1 NW43 1960 NW 35 58056 F 02/09-18 36 4 9 51 W 18 1 1531 NW 35 45344 F 02/09-19 36 4 7 55 W 21 1 1102 NW 35 32632 P 02/09-20 36 4 5 58 W 22 35 3 1 NW41 674 NW 35 19921 P 02/09-21 36 4 4 61 W 22 1 551 NW 30 15287 P 02/09-22 36 4 3 64 W 21 1 428 W 26 10653 P 02/09-23 40 4 2 66 W 20 31 2 1 NW36 305 W 23 6019 P 02/10-00 40 4 1 69 W 18 1 295 W 22 5484 P 02/10-01 40 4 0 72 W 18 1 284 W 20 4949 P 02/10-02 40 4 -1 75 W 17 28 2 1 NW36 274 W 18 4413 P 02/10-03 40 4 -1 77 W 15 1 267 W 17 4006 P 02/10-04 40 4 -1 80 W 13 1 259 W 16 3598 P 02/10-05 48 7 -1 81 W 12 18 2 1 NW31 252 W 15 3191 P 02/10-06 48 7 -1 84 W 13 1 353 W 15 4786 P 02/10-07 48 7 1 80 W 15 1 454 W 16 6381 P 02/10-08 48 7 5 71 W 16 25 2 1 NW25 555 W 16 7976 P 02/10-09 48 7 9 61 W 15 1 926 NW 16 13326 P 02/10-10 48 7 12 54 W 13 1 1297 NW 16 18676 P 02/10-11 36 7 16 48 W 10 16 3 1 NW26 1668 NW 16 24027 P 02/10-12 36 7 19 43 W 10 1 1886 NW 17 28943 P 02/10-13 36 7 21 41 W 10 1 2104 NW 18 33860 P 02/10-14 37 7 22 40 W 12 18 4 1 NW32 2322 NW 20 38776 P 02/10-15 37 7 22 41 W 13 1 2015 NW 22 36409 P 02/10-16 37 7 21 43 W 14 1 1707 NW 24 34041 P 02/10-17 37 7 20 45 W 15 24 4 1 N35 1400 NW 26 31674 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...ALLEN GALAMORE REASON FOR REQUEST...PRESCRIBED .TAG 20110208.RALST.01/BOU RJK