FNUS75 KBOU 011749 FWSBOU SPOT FORECAST FOR RALSTON ROOST RX...USFS NATIONAL WEATHER SERVICE DENVER CO 1139 AM MDT TUE NOV 1 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A FAST MOVING STORM SYSTEM WILL MOVE ACROSS THE REGION TONIGHT INTO WEDNESDAY MORNING...WITH IMPROVING CONDITIONS FROM NORTH TO SOUTH IN THE AFTERNOON. SCATTERED RAIN AND SNOW SHOWERS WILL DEVELOP LATER THIS AFTERNOON...THEN MODERATE TO HEAVY SNOW SNOWFALL IS POSSIBLE WITH 8 TO 14 INCHES BY MIDDAY WEDNESDAY. IT WILL BE DRY AND WARMER FOR THURSDAY AND FRIDAY WITH ANOTHER STORM SYSTEM MOVING ACROSS THE STATE BY SATURDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS FROM 1200 TO 1600...THEN SCATTERED RAIN SHOWERS AND SNOW SHOWERS. MAX TEMPERATURE.....37-41. MIN HUMIDITY........58-63%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH UNTIL 0900...THEN SOUTH AROUND 5 MPH UNTIL 1200...THEN EAST 5-6 MPH. TRANSPORT WINDS.....SOUTH 1-12 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1100...THEN 1000-1600 FT AGL UNTIL 1600...THEN BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 VERY LOW. .TONIGHT... SKY/WEATHER.........CLOUDY. SNOW...HEAVY AT TIMES. AREAS OF BLOWING SNOW. SNOW ACCUMULATION OF 4 TO 8 INCHES. MIN TEMPERATURE.....21-23. MAX HUMIDITY........100%. 20-FOOT WINDS.......NORTHEAST WINDS 7-13 MPH. TRANSPORT WINDS.....NORTHEAST 5-16 MPH UNTIL 2400...THEN NORTH AROUND 20 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 2200. 3800-4800 FT AGL AFTER 0100. SMOKE DISPERSAL.....POOR UNTIL 2300. GOOD AFTER 0100. HAINES INDEX........3 VERY LOW. .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SNOW UNTIL 1200...THEN CHANCE OF SNOW. STORM TOTAL ACCUMULATIONS OF 8 TO 14 INCHES. MAX TEMPERATURE.....28. MIN HUMIDITY........60-65%. 20-FOOT WINDS.......NORTH WINDS 6-11 MPH UNTIL 1200...THEN UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....NORTHWEST 12-20 MPH. MIXING HEIGHT.......2400-3400 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 1300. POOR AFTER 1600. HAINES INDEX........4 LOW. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...MOSTLY CLEAR. NOT AS COOL. LOWS AROUND 11. HIGHS IN THE LOWER 40S. WEST WINDS AROUND 11 MPH WITH GUSTS TO 20 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER 1800. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS AROUND 9 MPH. .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600... THEN CHANCE OF SNOW UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. COLDER. LOWS IN THE MID 20S. HIGHS IN THE UPPER 20S. WEST WINDS AROUND 12 MPH WITH GUSTS TO 20 MPH. FIRE WEATHER TABLE FOR RALSTONROOST RX. +++ 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 11/01-11 26 1 0 41 58 SE 5 5 2 1 W43 1194 S 8 10088 P 11/01-12 75 20 4 43 58 SE 6 6 2 1 W45 1529 SW10 14142 P 11/01-13 75 20 4 43 61 E 6 6 2 1 W47 1376 SW 8 10507 P 11/01-14 75 20 4 43 63 E 6 6 3 1 W49 1222 SW 6 6872 P 11/01-15 88 34 13 43 65 NE 6 6 3 1 W52 1068 S 3 3238 P 11/01-16 88 34 13 41 65 NE 6 6 3 1 W53 834 S 3 2570 P 11/01-17 88 34 13 39 68 NE 5 5 3 1 SW53 601 SE 3 1903 P 11/01-18 97 81 70 34 78 NE 5 5 3 1 SW53 368 E 3 1236 P 11/01-19 97 81 70 30 94 NE 5 5 3 1 SW53 389 E 6 1880 P 11/01-20 97 81 70 27 100 NE 6 6 3 1 SW53 409 NE 7 2525 P 11/01-21 97 91 86 26 100 NE 7 7 3 1 SW51 430 NE 8 3170 P 11/01-22 97 91 86 24 100 NE 8 8 3 1 SW48 1181 NE13 18364 P 11/01-23 97 91 86 23 100 NE 8 8 2 1 SW45 1932 N17 33559 P 11/02-00 100 90 84 23 98 NE 9 14 2 1 SW40 2682 N21 48753 F 11/02-01 100 90 84 22 93 NE 9 15 2 1 SW35 3230 N22 60291 G 11/02-02 100 90 84 22 85 NE10 15 2 1 SW29 3779 N22 71829 G 11/02-03 100 90 84 23 77 NE10 15 2 1 SW25 4327 N22 83367 G 11/02-04 100 90 84 22 75 NE10 15 2 1 SW25 4537 N22 85135 G 11/02-05 100 90 84 22 74 N 9 15 2 1 W29 4748 N21 86904 G 11/02-06 99 80 68 23 70 N 9 14 2 1 W31 4958 N21 88672 G 11/02-07 99 80 68 22 75 N 8 8 2 1 W32 4953 N20 84552 G 11/02-08 99 80 68 22 81 N 8 8 2 1 W33 4948 N18 80432 G 11/02-09 99 80 68 22 88 N 7 7 2 1 NW33 4943 N17 76313 G 11/02-10 99 80 68 22 88 N 6 6 2 1 NW40 5007 N16 71601 G 11/02-11 99 80 68 22 84 N 3 3 2 1 NW49 5071 NW15 66890 G 11/02-12 70 30 9 23 79 N 2 2 2 1 N56 5135 NW14 62179 G 11/02-13 70 30 9 24 75 N 2 2 3 1 N60 4469 NW14 54903 F 11/02-14 70 30 9 25 71 NW 2 2 3 1 N60 3803 NW15 47626 F 11/02-15 70 30 9 25 68 NW 3 3 4 1 N59 3138 NW15 40350 F 11/02-16 70 30 9 25 67 NW 3 3 4 1 N56 2354 NW14 29376 P 11/02-17 70 30 9 24 67 W 3 3 4 1 NW54 1569 W13 18401 P 11/02-18 30 6 1 23 67 W 5 5 4 1 NW49 785 W10 7427 P 11/02-19 30 6 1 22 68 W 7 7 4 1 NW47 613 W10 5555 P 11/02-20 30 6 1 21 66 W 9 14 4 1 NW44 442 W 9 3683 P 11/02-21 30 6 1 20 65 W12 17 4 1 NW40 270 W 8 1811 P 11/02-22 30 6 1 20 63 W13 18 4 1 NW37 226 W 8 1579 P 11/02-23 30 6 1 19 61 W13 18 4 1 NW32 182 W 9 1347 P 11/03-00 14 0 0 19 59 W13 20 4 1 NW29 138 W 9 1115 P 11/03-01 14 0 0 18 56 W13 20 4 1 NW25 120 W10 1035 P 11/03-02 14 0 0 18 54 W14 21 4 1 NW23 103 W12 955 P 11/03-03 14 0 0 17 52 W14 21 4 1 NW22 85 W12 875 P 11/03-04 14 0 0 17 51 W14 21 4 1 W23 80 W12 806 P 11/03-05 14 0 0 16 52 W13 20 4 1 W24 75 W12 737 P 11/03-06 13 0 0 16 54 W13 20 4 1 W25 70 W12 668 P 11/03-07 13 0 0 16 60 W13 20 4 1 W22 85 W12 919 P 11/03-08 13 0 0 16 67 W13 20 4 1 W18 101 W13 1170 P 11/03-09 13 0 0 17 73 W13 20 4 1 W15 117 W14 1420 P 11/03-10 13 0 0 20 75 W10 16 4 1 SW17 178 W14 2176 P 11/03-11 13 0 0 24 73 W 8 8 5 1 SW21 239 W14 2931 P 11/03-12 13 0 0 28 68 W 7 7 5 1 SW24 300 W14 3686 P 11/03-13 13 0 0 32 60 W 8 8 5 1 SW25 305 W15 4053 P 11/03-14 13 0 0 36 52 W 9 9 5 1 SW25 310 W16 4420 P 11/03-15 13 0 0 38 47 W10 16 5 1 SW25 315 W17 4787 P 11/03-16 13 0 0 37 47 W 9 15 4 1 SW25 281 W16 4064 P 11/03-17 13 0 0 35 50 W 8 8 4 1 SW26 248 W15 3342 P 11/03-18 13 0 0 33 51 W 8 8 3 1 SW26 215 W14 2619 P 11/03-19 13 0 0 32 49 W 9 14 3 1 SW26 204 W15 2663 P 11/03-20 13 0 0 30 48 W12 17 3 1 W26 193 W16 2707 P 11/03-21 13 0 0 29 46 W13 20 3 1 W26 182 W17 2751 P 11/03-22 13 0 0 28 44 W13 20 4 1 SW25 173 W17 2627 P 11/03-23 13 0 0 28 41 W13 18 5 1 SW24 165 W17 2504 P 11/04-00 9 3 1 28 40 W12 17 5 1 SW25 157 W17 2380 P 11/04-01 9 3 1 27 40 W12 17 5 1 SW29 156 W17 2260 P 11/04-02 9 3 1 27 41 W12 17 4 1 SW32 155 W16 2139 P 11/04-03 9 3 1 27 43 W12 17 3 1 SW36 154 SW15 2019 P 11/04-04 9 3 1 26 46 W12 17 3 1 SW35 146 SW15 1846 P 11/04-05 9 3 1 26 50 W10 16 3 1 SW31 139 SW14 1674 P 11/04-06 14 4 1 25 54 W10 16 3 1 SW28 132 SW13 1502 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...VAUGHN JONES REASON FOR REQUEST...PRESCRIBED .TAG 20111101.RALST.01/BOU