FNUS75 KBOU 061529 FWSBOU SPOT FORECAST FOR RALSTON ROOST PILES...CSFS NATIONAL WEATHER SERVICE DENVER CO 816 AM MST TUE DEC 6 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A FLAT UPPER LEVEL RIDGE WILL BEGIN TO BUILD OVER THE STATE TODAY AND TONIGHT. DRY AND COLD CONDITIONS WILL STILL PREVAIL WITH ARCTIC HIGH PRESSURE SLOWLY LOOSENING ITS GRIP ON THE REGION. SMOKE DISPERSION WILL BE LIMITED BY THE COLD TEMPERATURES...ALTHOUGH A COUPLE HOURS OF FAIR SMOKE DISPERSION CANT BE RULED OUT IF STRONGER WESTERLY DOWNSLOPE WINDS DEVELOP. THE SAME SCENARIO IS EXPECTED WEDNESDAY WITH POTENTIAL FOR BREEZY CONDITIONS. TEMPERATURES WILL ALSO BE SEVERAL DEGREES WARMER WHICH SHOULD AID SMOKE DISPERSION FOR THE AFTERNOON HOURS. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1700...THEN PARTLY CLOUDY(30-40%). MAX TEMPERATURE.....28. MIN HUMIDITY........31%. 20-FOOT WINDS.......WEST WINDS 10-14 MPH. GUSTS UP TO 20 MPH EARLY IN THE MORNING. TRANSPORT WINDS.....NORTHWEST 20-24 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000...THEN 1000-1600 FT AGL UNTIL 1600...THEN BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR...POSSIBLY FAIR BETWEEN 1200 AND 1500. HAINES INDEX........3 VERY LOW. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. MIN TEMPERATURE.....8. MAX HUMIDITY........81%. 20-FOOT WINDS.......WEST WINDS 11-17 MPH. GUSTS UP TO 30 MPH AFTER 3 AM. TRANSPORT WINDS.....NORTHWEST 12-20 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 VERY LOW. .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....37. MIN HUMIDITY........24%. 20-FOOT WINDS.......WEST WINDS 11-17 MPH WITH GUSTS TO 30 MPH. TRANSPORT WINDS.....WEST 13-24 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1300...THEN 1000-1800 FT AGL UNTIL 1700...THEN BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1200...THEN FAIR UNTIL 1500... THEN POOR. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...PARTLY CLOUDY. LOWS AROUND 16. HIGHS IN THE UPPER 20S. WEST WINDS AROUND 11 MPH WITH GUSTS TO 25 MPH. .FRIDAY...CLEAR. LOWS AROUND 14. HIGHS IN THE LOWER 30S. WEST WINDS AROUND 7 MPH WITH GUSTS TO 20 MPH. .SATURDAY...MOSTLY CLEAR. LOWS AROUND 17. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 8 MPH. FIRE WEATHER TABLE FOR RALSTONROOST PILES. +++ 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 WR AT 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 12/06-08 3 0 0 4 58 W14 22 2 1 N78 582 NW21 10233 P 12/06-09 3 0 0 9 56 W13 13 2 1 N76 830 NW21 14714 P 12/06-10 3 0 0 15 47 W12 12 2 1 N73 1077 NW21 19194 P 12/06-11 17 0 0 21 41 W10 10 2 1 N69 1325 NW21 23675 P 12/06-12 17 0 0 23 34 W10 10 2 1 N66 1410 NW22 26734 P 12/06-13 17 0 0 24 32 W12 12 2 1 N61 1495 NW23 29794 P 12/06-14 17 0 0 25 31 NW13 13 2 1 N58 1580 NW24 32853 P 12/06-15 17 0 0 26 32 W13 13 2 1 N54 1169 NW23 24048 P 12/06-16 17 0 0 19 44 W13 13 2 1 N52 757 NW22 15242 P 12/06-17 36 0 0 15 40 W13 13 2 1 N51 345 NW22 6437 P 12/06-18 36 0 0 13 41 W13 13 2 1 N49 303 NW21 5479 P 12/06-19 36 0 0 12 41 W14 22 2 1 N51 261 NW20 4522 P 12/06-20 36 0 0 11 42 W14 22 2 1 N51 219 NW18 3565 P 12/06-21 36 0 0 11 41 W13 13 2 1 N51 192 NW16 2873 P 12/06-22 36 0 0 11 42 W13 13 2 1 N49 165 NW15 2182 P 12/06-23 15 0 0 10 42 W12 12 2 1 N48 138 NW13 1491 P 12/07-00 15 0 0 10 42 W12 12 2 1 N47 136 NW12 1394 P 12/07-01 15 0 0 8 55 W12 12 2 1 N45 133 W12 1297 P 12/07-02 15 0 0 14 51 W12 12 2 1 N43 130 W10 1200 P 12/07-03 15 0 0 15 50 W12 12 2 1 NW41 117 W12 1158 P 12/07-04 15 0 0 15 50 W10 10 2 1 NW41 104 W13 1115 P 12/07-05 15 0 0 10 81 W17 28 2 1 NW41 91 W14 1072 P 12/07-06 15 0 0 9 74 W17 29 2 1 NW41 101 W14 1258 P 12/07-07 15 0 0 10 65 W17 29 3 1 NW41 112 W15 1444 P 12/07-08 15 0 0 13 54 W17 28 3 1 NW41 122 W15 1630 P 12/07-09 15 0 0 19 40 W15 24 3 1 NW41 236 W15 3075 P 12/07-10 15 0 0 25 32 W13 21 2 1 NW41 350 W15 4520 P 12/07-11 19 0 0 30 28 W12 18 2 1 NW41 464 W15 5965 P 12/07-12 19 0 0 34 25 W12 18 2 1 NW41 892 W17 15865 P 12/07-13 19 0 0 35 24 W13 21 2 1 NW41 1321 W21 25766 P 12/07-14 19 0 0 36 25 W14 22 2 1 NW41 1750 W23 35667 P 12/07-15 19 0 0 36 26 W14 23 2 1 NW40 1362 W23 27494 P 12/07-16 19 0 0 34 28 W15 23 2 1 NW39 975 W22 19322 P 12/07-17 25 3 1 31 34 W15 24 2 1 NW38 587 W22 11149 P 12/07-18 25 3 1 29 38 W16 25 2 1 NW37 465 W21 8502 P 12/07-19 25 3 1 27 42 W17 26 2 1 NW37 342 W18 5856 P 12/07-20 25 3 1 26 44 W17 28 2 1 NW36 219 W17 3209 P 12/07-21 25 3 1 25 44 W17 28 2 1 NW36 205 W16 2885 P 12/07-22 25 3 1 25 44 W16 26 2 1 W37 192 W15 2561 P 12/07-23 34 3 1 24 43 W16 25 2 1 W37 179 W15 2236 P 12/08-00 34 3 1 23 44 W16 25 2 1 W38 167 W14 2058 P 12/08-01 34 3 1 22 45 W16 26 2 1 W39 156 W14 1880 P 12/08-02 34 3 1 22 46 W16 25 2 1 W40 145 W14 1702 P 12/08-03 34 3 1 21 48 W15 25 2 1 W41 140 W13 1610 P 12/08-04 34 3 1 20 50 W15 23 2 1 W43 136 W13 1519 P 12/08-05 39 6 1 20 52 W14 22 2 1 W44 131 W13 1428 P 12/08-06 39 6 1 19 52 W13 21 2 1 W45 141 W13 1512 P 12/08-07 39 6 1 18 52 W13 20 2 1 W46 151 W13 1596 P 12/08-08 39 6 1 19 50 W12 18 2 1 W46 160 W12 1680 P 12/08-09 39 6 1 22 46 W 9 15 2 1 W46 404 W14 5250 P 12/08-10 39 6 1 24 44 W 7 7 2 1 W46 649 W15 8819 P 12/08-11 54 4 1 26 42 NW 6 6 2 1 W45 893 W16 12388 P 12/08-12 54 4 1 27 39 NW 6 6 2 1 W43 1516 W17 24518 P 12/08-13 54 4 1 28 37 NW 6 6 2 1 NW40 2139 NW18 36648 P 12/08-14 54 4 1 28 37 NW 6 6 2 1 NW39 2762 NW21 48778 F 12/08-15 54 4 1 28 39 NW 6 6 2 1 NW38 2168 NW17 35900 P 12/08-16 54 4 1 27 45 W 6 6 2 1 NW38 1575 NW15 23022 P 12/08-17 46 4 1 24 56 W 6 6 2 1 N39 981 W12 10144 P 12/08-18 46 4 1 22 64 W 8 13 3 1 N39 866 W14 9781 P 12/08-19 46 4 1 20 70 W10 16 4 1 NW40 751 W15 9417 P 12/08-20 46 4 1 20 74 W13 21 4 1 NW40 637 W16 9054 P 12/08-21 46 4 1 19 76 W14 23 4 1 NW40 515 W16 7133 P 12/08-22 46 4 1 19 76 W15 24 3 1 NW40 392 W15 5212 P 12/08-23 22 5 1 18 74 W15 24 2 1 NW40 270 W14 3291 P 12/09-00 22 5 1 17 69 W13 21 2 1 NW40 243 W13 2686 P 12/09-01 22 5 1 17 62 W 9 15 2 1 NW40 216 W10 2081 P 12/09-02 22 5 1 16 57 W 7 7 2 1 NW40 189 W 9 1476 P 12/09-03 22 5 1 15 56 W 7 7 2 1 NW40 190 W10 1613 P 12/09-04 22 5 1 15 56 W 7 7 2 1 NW40 190 W10 1749 P 12/09-05 4 5 1 14 57 W 8 13 2 1 NW40 191 W12 1886 P KEY: FORECAST - MONTH/DAY-HOUR OF FORECAST /24-HOUR CLOCK LOCAL TIME/ VALID AT SC - SKY COVER /PERCENT/ PP - PROBABILITY OF PRECIPITATION 0.01 INCH /PERCENT/ WR - PROBABILITY OF WETTING RAIN 0.1 INCH /PERCENT/ AT - 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...KEVIN MICHALAK REASON FOR REQUEST...PRESCRIBED .TAG 20111206.RALST.01/BOU