FNUS75 KBOU 300406 FWSBOU SPOT FORECAST FOR LOWER CO RIVER...NPS NATIONAL WEATHER SERVICE DENVER CO 903 PM MST TUE NOV 29 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN APPROACHING STORM SYSTEM WILL MOVE INTO THE GREAT BASIN BY WEDNESDAY EVENING. AHEAD OF THIS FEATURE...MILD AND BREEZY CONDITIONS CAN BE EXPECTED ON WEDNESDAY. THIS WILL PROMOTE VERY GOOD SMOKE DISPERSION IN THE AFTERNOON HOURS. SNOW IS EXPECTED TO DEVELOP WEDNESDAY EVENING AS THE WEATHER SYSTEM AND ASSOCIATED COLD FRONT MOVE INTO THE STATE. THERE IS POTENTIAL FOR GUSTY NORTH TO NORTHEAST WINDS AS THE HEART OF THE STORM SYSTEM DRIVES INTO THE DESERT SOUTHWEST. TEMPERATURES WILL TURN COLDER AS WELL. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(30-40%). MIN TEMPERATURE.....20. MAX HUMIDITY........66%. 20-FOOT WINDS.......NORTHWEST WINDS 7-13 MPH. TRANSPORT WINDS.....WEST 12-16 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 LOW. .WEDNESDAY... SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 1200...THEN MOSTLY CLOUDY(50-60%). SNOW LIKELY AFTER 1700. MAX TEMPERATURE.....45. MIN HUMIDITY........32%. 20-FOOT WINDS.......SOUTHWEST WINDS 6-14 MPH. TRANSPORT WINDS.....WEST 28-36 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900...THEN 4000-5000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN GOOD UNTIL 1100...THEN VERY GOOD UNTIL 1300...THEN EXCELLENT UNTIL 1700...THEN VERY GOOD. HAINES INDEX........4 LOW. .WEDNESDAY NIGHT... SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2300...THEN SNOW. MIN TEMPERATURE.....11. MAX HUMIDITY........88%. 20-FOOT WINDS.......NORTH WINDS 11-17 MPH WITH GUSTS TO 25 MPH. TRANSPORT WINDS.....WEST 9-20 MPH UNTIL 2400...THEN NORTH 12-20 MPH. MIXING HEIGHT.......3200-4000 FT AGL UNTIL 2000...THEN 2400 FT AGL UNTIL 2100...THEN 3200-4200 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 1900...THEN FAIR UNTIL 2000...THEN POOR UNTIL 2100...THEN FAIR UNTIL 2300...THEN POOR UNTIL 0300...THEN FAIR UNTIL 0500...THEN GOOD. HAINES INDEX........2 VERY LOW. .THURSDAY... SKY/WEATHER.........CLOUDY. SNOW UNTIL 1700...THEN SLIGHT CHANCE OF SNOW. MAX TEMPERATURE.....17. MIN HUMIDITY........66%. 20-FOOT WINDS.......NORTHEAST WINDS 13-23 MPH WITH GUSTS TO 30 MPH. TRANSPORT WINDS.....NORTHEAST 20-28 MPH. MIXING HEIGHT.......3200-4200 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 1600. FAIR AFTER 1700. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1800. NOT AS COLD. LOWS AROUND 2. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. COLDER. LOWS AROUND 4. HIGHS AROUND 17. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0600. LOWS AROUND 5. HIGHS IN THE MID 20S. WEST WINDS AROUND 7 MPH. .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1200. LOWS AROUND 14. HIGHS IN THE MID 20S. WEST WINDS AROUND 10 MPH. FIRE WEATHER TABLE FOR LOWER CO RIVER. +++ 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 11/29-20 37 0 0 28 54 NW 5 5 3 1 NW31 801 W13 8871 P 11/29-21 37 0 0 27 54 NW 6 6 4 1 NW35 695 W14 8045 P 11/29-22 37 0 0 26 55 NW 6 6 4 1 W37 589 W15 7220 P 11/29-23 37 0 0 25 55 NW 7 7 4 1 W40 483 W15 6395 P 11/30-00 37 0 0 25 53 NW 7 7 3 1 W40 439 W16 5965 P 11/30-01 37 0 0 24 54 NW 8 8 3 1 W41 394 W16 5535 P 11/30-02 37 0 0 22 55 NW 8 8 2 1 W43 349 W17 5104 P 11/30-03 37 0 0 22 51 NW 8 8 2 1 W45 316 W16 4574 P 11/30-04 37 0 0 21 47 NW 9 9 3 1 W48 284 W16 4044 P 11/30-05 36 0 0 20 46 NW 9 14 3 1 W52 251 W16 3513 P 11/30-06 36 0 0 21 48 NW 9 9 3 1 W54 260 W16 3680 P 11/30-07 36 0 0 20 58 NW 9 9 4 1 W56 269 W16 3846 P 11/30-08 36 0 0 20 66 W 9 14 4 1 W59 278 W16 4013 P 11/30-09 36 0 0 24 64 SW10 15 4 1 W59 1179 W25 39128 P 11/30-10 36 0 0 29 58 SW10 16 4 1 W59 2079 W33 74242 G 11/30-11 53 0 0 34 50 SW12 17 4 1 W60 2980 W43 109357 V 11/30-12 53 0 0 40 40 SW12 18 4 1 W64 3736 W44 141792 V 11/30-13 53 0 0 42 37 SW13 18 3 1 W69 4493 W44 174227 E 11/30-14 53 7 1 43 34 SW13 20 3 1 W73 5250 W45 206661 E 11/30-15 53 7 1 45 32 SW14 20 3 1 W74 5079 W40 178421 E 11/30-16 53 7 1 44 34 SW14 21 2 1 W74 4909 W35 150180 E 11/30-17 95 72 56 36 46 W13 20 2 1 W70 4739 W30 121940 V 11/30-18 95 72 56 31 55 W10 16 2 1 W64 3931 W22 86223 G 11/30-19 95 72 56 27 64 NW 7 7 2 1 W56 3123 W15 50506 F 11/30-20 95 72 56 24 72 NW 3 3 2 1 W47 2315 W 7 14790 P 11/30-21 95 72 56 23 75 NW 2 2 2 1 SW49 4418 W14 52906 F 11/30-22 95 72 56 22 77 NW 3 3 2 1 SW47 4322 W10 41059 F 11/30-23 98 84 74 21 79 NW 5 5 2 1 SW45 4225 W 8 29213 P 12/01-00 98 84 74 19 80 NW 6 6 2 1 SW41 4002 NW 9 31798 P 12/01-01 98 84 74 18 81 N 8 8 2 1 SW38 3780 N10 34382 P 12/01-02 98 84 74 17 81 N10 15 2 1 SW33 3557 N12 36967 P 12/01-03 98 84 74 16 81 N13 18 2 1 SW28 3400 NE16 46647 F 12/01-04 98 84 74 15 81 NE14 22 2 1 S23 3243 NE21 56326 F 12/01-05 95 84 74 14 83 NE16 24 2 1 S20 3086 NE24 66006 G 12/01-06 95 84 74 13 84 NE17 26 2 1 S18 3003 NE26 67522 G 12/01-07 95 84 74 12 88 NE18 29 2 1 S18 2920 NE28 69039 G 12/01-08 95 84 74 12 84 NE20 30 2 1 S20 2838 NE29 70555 G 12/01-09 95 84 74 14 78 NE21 31 2 1 S22 3290 NE29 81447 G 12/01-10 95 84 74 15 73 NE21 31 2 1 S24 3743 NE29 92339 G 12/01-11 90 79 66 16 69 NE21 31 2 1 S26 4196 NE29 103231 V 12/01-12 90 79 66 17 68 NE21 30 2 1 S29 4300 NE26 98889 G 12/01-13 90 79 66 17 68 NE20 29 2 1 S30 4403 E25 94547 G 12/01-14 90 79 66 17 68 NE18 28 2 1 S30 4507 E23 90205 G 12/01-15 90 79 66 17 66 NE17 26 2 1 S26 3947 E22 74997 G 12/01-16 90 79 66 15 66 NE16 24 2 1 S22 3386 E20 59788 F 12/01-17 60 23 5 12 73 E15 23 2 1 S16 2825 E18 44579 F 12/01-18 60 23 5 10 80 E13 20 2 1 SW13 2310 E15 33528 P 12/01-19 60 23 5 8 85 E10 15 2 1 SW 8 1795 E13 22477 P 12/01-20 60 23 5 7 86 E 8 8 2 1 SW 6 1280 E10 11425 P 12/01-21 60 23 5 6 82 E 7 7 2 1 W 3 1152 E 9 9550 P 12/01-22 60 23 5 6 76 E 6 6 2 1 NW 3 1025 E 8 7675 P 12/01-23 43 6 1 5 72 E 6 6 2 1 N 3 898 E 7 5800 P 12/02-00 43 6 1 5 71 E 6 6 2 1 N 5 704 E 7 4309 P 12/02-01 43 6 1 4 72 E 5 5 2 1 NE 6 510 E 6 2818 P 12/02-02 43 6 1 3 73 E 5 5 2 1 NE 7 316 SE 5 1326 P 12/02-03 43 6 1 3 74 E 3 3 2 1 NE 7 261 E 3 964 P 12/02-04 43 6 1 2 75 E 3 3 2 1 NE 7 206 E 2 601 P 12/02-05 28 3 1 1 78 E 2 2 2 1 NE 7 151 E 2 238 P 12/02-06 28 3 1 1 79 NE 2 2 2 1 NE 8 160 E 2 322 P 12/02-07 28 3 1 2 77 NE 2 2 2 1 E 8 169 N 2 406 P 12/02-08 28 3 1 6 72 N 2 2 2 1 E 8 178 N 3 490 P 12/02-09 28 3 1 13 65 N 2 2 2 1 E 7 1695 N 2 2659 P 12/02-10 28 3 1 20 63 W 2 2 2 1 E 6 3211 NE 2 4828 P 12/02-11 35 4 1 24 63 SW 2 2 2 1 E 5 4727 CALM 6997 P 12/02-12 35 4 1 28 60 W 3 3 2 1 E 5 5089 NE 2 11643 P 12/02-13 35 4 1 29 58 W 6 6 2 1 SE 5 5452 N 3 16289 P 12/02-14 35 4 1 30 54 NW 7 7 2 1 SE 5 5815 N 5 20934 P 12/02-15 35 4 1 29 53 NW 7 7 2 1 E 3 5393 N 6 24199 P 12/02-16 35 4 1 28 52 NW 6 6 2 1 N 2 4971 N 7 27464 P 12/02-17 51 16 3 23 58 NW 5 5 2 1 CALM 4549 N 8 30728 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...JEFF SINGER REASON FOR REQUEST...PRESCRIBED .TAG 20111130.LOWER.01/BOU