FNUS75 KBOU 071506 FWSBOU SPOT FORECAST FOR RALSTON ROOST...USFS NATIONAL WEATHER SERVICE DENVER CO 804 AM MST MON FEB 7 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...GUSTY WEST WINDS ARE EXPECTED TODAY AS WESTERLY FLOW ALOFT INCREASES AHEAD OF THE NEXT STORM SYSTEM. GUSTS WILL BE NEAR 30 MPH...WITH GOOD TO VERY GOOD SMOKE DISPERSION THROUGH THE DAY. A COLD FRONT WILL MOVE THROUGH THE AREA AFTER MIDNIGHT TONIGHT WITH UPSLOPE FLOW AND SNOW QUICKLY DEVELOPING. THE SNOW WILL HEAVY AT TIMES INTO TUESDAY MORNING. SNOW WILL BECOME LIGHT BY LATE TUESDAY MORNING AND COME TO AN END LATE IN THE AFTERNOON. TOTAL SNOW ACCUMULATION OF 5-8 INCHES IS EXPECT BY TUESDAY EVENING. WARMER AND DRIER WEATHER WILL PREVAIL FOR THE LATTER HALF OF THE WEEK. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW AFTER 1700. MAX TEMPERATURE.....37. MIN HUMIDITY........31%. 20-FOOT WINDS.......BREEZY. WEST WINDS 12-20 MPH. GUSTS NEAR 30 MPH. TRANSPORT WINDS.....WEST 36-48 MPH. MIXING HEIGHT.......1000-1200 FT AGL UNTIL 0800...THEN BELOW 1000 FT AGL UNTIL 0900...THEN 2200-3200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN GOOD UNTIL 1100...THEN VERY GOOD UNTIL 1600...THEN GOOD. HAINES INDEX........3 VERY LOW. .TONIGHT... SKY/WEATHER.........CLOUDY. CHANCE OF SNOW UNTIL 2400...THEN SNOW. MIN TEMPERATURE.....3. MAX HUMIDITY........94%. 20-FOOT WINDS.......WEST WINDS 12-20 MPH UNTIL 2400...THEN NORTH 9-15 MPH. TRANSPORT WINDS.....WEST 29-40 MPH UNTIL 2400...THEN NORTH 8-16 MPH. MIXING HEIGHT.......1000-1800 FT AGL UNTIL 2200...THEN BELOW 1000 FT AGL UNTIL 0500...THEN 1000 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2000. HAINES INDEX........3 VERY LOW. .TUESDAY... SKY/WEATHER.........CLOUDY. SNOW UNTIL 1700...THEN SNOW LIKELY. MAX TEMPERATURE.....5. MIN HUMIDITY........64%. 20-FOOT WINDS.......EAST WINDS 5-11 MPH. TRANSPORT WINDS.....NORTHEAST 8-12 MPH. MIXING HEIGHT.......1400-2200 FT AGL. SMOKE DISPERSAL.....POOR...BUT SNOW THROUGH MOST OF THE DAY. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. NOT AS COLD. LOWS AROUND 6 BELOW. HIGHS AROUND 16. WEST WINDS AROUND 8 MPH WITH GUSTS TO 20 MPH. .THURSDAY...PARTLY CLOUDY. LOWS AROUND 4. HIGHS IN THE MID 20S. WEST WINDS AROUND 13 MPH WITH GUSTS TO 25 MPH. .FRIDAY...PARTLY CLOUDY. LOWS AROUND 15. 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 02/07-07 63 3 10 66 W 13 1 997 W 40 34175 P 02/07-08 63 3 12 61 W 14 24 2 1 NW67 890 W 45 34987 P 02/07-09 63 3 20 47 W 15 1 1540 W 46 61586 G 02/07-10 63 3 26 40 W 15 1 2189 NW 46 88184 G 02/07-11 67 8 31 35 W 16 28 2 1 NW52 2839 NW 46 114782 V 02/07-12 67 8 35 32 W 18 1 3011 NW 46 121277 V 02/07-13 67 8 37 31 W 18 1 3182 W 46 127772 V 02/07-14 67 8 36 32 W 19 31 3 1 NW55 3354 W 46 134267 V 02/07-15 67 8 35 33 W 19 1 2919 W 46 117552 V 02/07-16 67 8 31 37 W 17 1 2484 W 47 100837 V 02/07-17 88 29 30 38 W 17 29 3 1 NW60 2049 W 47 84122 G 02/07-18 88 29 29 38 W 16 1 1772 W 43 67605 G 02/07-19 88 29 28 39 W 15 1 1495 W 38 51088 F 02/07-20 88 29 26 44 W 14 21 3 1 W47 1218 W 32 34571 P 02/07-21 88 29 23 55 W 14 1 919 W 30 25189 P 02/07-22 88 29 20 67 W 13 1 620 W 26 15808 P 02/07-23 100 98 18 78 W 13 13 3 1 W31 321 W 23 6426 P 02/08-00 100 98 17 83 NW 13 1 337 NW 17 5047 P 02/08-01 100 98 16 86 N 12 1 353 N 13 3668 P 02/08-02 100 98 14 90 N 12 12 3 1 W22 369 N 7 2288 P 02/08-03 100 98 12 93 N 10 1 577 N 9 5760 P 02/08-04 100 98 10 94 NE 9 1 785 NE 13 9231 P 02/08-05 100 90 8 92 NE 10 16 3 1 SW17 993 NE 15 12702 P 02/08-06 100 90 7 92 NE 9 1 1396 NE 13 13418 P 02/08-07 100 90 5 93 NE 9 1 1799 NE 10 14134 P 02/08-08 100 90 5 87 NE 8 13 2 1 SW18 2202 NE 8 14849 P 02/08-09 100 90 5 82 NE 7 1 2037 N 8 13306 P 02/08-10 100 90 5 77 NE 7 1 2019 N 9 16901 P 02/08-11 100 80 5 73 E 6 6 2 1 S20 2001 N 12 20496 P 02/08-12 100 80 5 69 E 6 1 2000 N 12 19882 P 02/08-13 100 80 5 67 E 6 1 2000 N 12 19268 P 02/08-14 99 80 5 65 E 6 6 2 1 SW14 2000 NE 10 18654 P 02/08-15 99 80 5 64 E 6 1 2070 NE 10 19334 P 02/08-16 99 80 4 64 E 5 1 2139 NE 10 20015 P 02/08-17 96 60 3 65 E 5 5 2 1 NW 7 2209 NE 10 20695 P 02/08-18 96 60 2 67 E 5 1 2064 NE 10 17887 P 02/08-19 96 60 0 71 SE 3 1 1919 NE 9 15078 P 02/08-20 93 60 -1 76 SE 3 3 2 1 NW10 1774 NE 8 12269 P 02/08-21 93 60 -3 81 S 3 1 1702 N 7 9801 P 02/08-22 93 60 -4 83 S 3 1 1630 N 5 7333 P 02/08-23 83 19 -5 84 SW 5 5 2 1 NW15 1557 N 3 4864 P 02/09-00 83 19 -5 85 SW 6 1 1273 N 3 3986 P 02/09-01 83 19 -6 85 SW 6 1 989 NW 3 3107 P 02/09-02 70 19 -7 85 SW 7 7 2 1 NW24 705 NW 3 2229 P 02/09-03 70 19 -7 82 SW 8 1 719 NW 5 3248 P 02/09-04 70 19 -7 77 W 9 1 733 NW 7 4267 P 02/09-05 63 4 -5 71 W 9 15 2 1 NW31 748 NW 8 5287 P 02/09-06 63 4 -2 64 W 9 1 1196 NW 9 9898 P 02/09-07 63 4 1 57 W 8 1 1644 NW 9 14509 P 02/09-08 63 4 5 51 W 7 7 2 1 N28 2093 NW 10 19120 P 02/09-09 63 4 8 46 W 7 1 2667 NW 12 28853 P 02/09-10 63 4 11 42 W 6 1 3242 NW 13 38587 P 02/09-11 34 4 13 40 W 6 6 2 1 N29 3816 NW 15 48320 F 02/09-12 34 4 14 40 W 6 1 3537 NW 14 43864 F 02/09-13 34 4 14 40 W 6 1 3257 NW 14 39408 P 02/09-14 34 4 14 41 W 6 6 4 1 NW29 2978 NW 14 34952 P 02/09-15 34 4 13 44 W 6 1 2265 NW 17 29040 P 02/09-16 34 4 11 47 W 6 1 1551 W 21 23128 P 02/09-17 36 4 7 54 W 6 6 4 1 NW37 838 W 24 17217 P 02/09-18 36 4 8 52 W 7 1 798 W 28 18708 P 02/09-19 36 4 7 54 W 9 1 758 W 31 20199 P 02/09-20 36 4 6 56 W 12 18 3 1 NW28 718 W 35 21690 P 02/09-21 36 4 6 56 W 13 1 622 W 32 17946 P 02/09-22 36 4 5 56 W 13 1 526 W 30 14201 P 02/09-23 40 4 5 55 W 13 21 2 1 NW12 430 W 28 10457 P 02/10-00 40 4 5 55 W 14 1 424 W 28 10048 P 02/10-01 40 4 5 56 W 14 1 417 W 26 9639 P 02/10-02 40 4 5 57 W 15 24 2 1 NW14 411 W 25 9229 P 02/10-03 40 4 5 58 W 16 1 429 W 26 10003 P 02/10-04 40 4 5 59 W 16 1 446 W 28 10776 P 02/10-05 48 7 5 62 W 16 25 2 1 N23 464 W 29 11549 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 20110207.RALST.01/BOU