FNUS75 KBOU 171549 FWSBOU SPOT FORECAST FOR GRIZZLY PILES...USFS NATIONAL WEATHER SERVICE DENVER CO 848 AM MST WED NOV 17 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...SCATTERED SNOW SHOWERS WILL CONTINUE THROUGH THE MORNING HOURS...THEN END AS DRIER AIR MOVES INTO THE AREA. THERE WILL BE ENOUGH TRANSPORT WIND THIS AFTERNOON TO PROVIDE FOR FAIR DISPERSION. THE AIRMASS WILL QUICKLY STABILIZE BY THIS EVENING. ON THURSDAY...TRANSPORT WINDS WILL INCREASE. HOWEVER...A FAIRLY STRONG INVERSION WILL DEVELOP AROUND 2000 FEET AGL. SO DESPITE THE STRONG TRANSPORT WINDS...THE MIXING HEIGHTS WILL LIMIT THE SMOKE DISPERSION. DRY CONDITIONS WILL PERSIST THROUGH FRIDAY. PERSISTENT INVERSIONS COULD LIMIT SMOKE DISPERSION DURING THE AFTERNOON. AN UPPER LEVEL TROUGH WILL MOVE ACROSS THE AREA DURING THE WEEKEND...BRINGING A CHANCE FOR SNOW TO THE REGION. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1200...THEN PARTLY CLOUDY(50-60%). SCATTERED SNOW SHOWERS UNTIL 1200. MAX TEMPERATURE.....22-26. MIN HUMIDITY........60-65%. 20-FOOT WINDS.......WEST WINDS 10-16 MPH. TRANSPORT WINDS.....WEST 9-20 MPH. MIXING HEIGHT.......2200-3200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1100...THEN FAIR UNTIL 1600...THEN POOR. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(30-40%). MIN TEMPERATURE.....10-15. MAX HUMIDITY........90-95%. 20-FOOT WINDS.......SOUTHWEST WINDS 12-20 MPH. GUSTS UP TO 30 MPH UNTIL 0200. TRANSPORT WINDS.....SOUTHWEST 12-20 MPH. MIXING HEIGHT.......1000-1200 FT AGL UNTIL 2000...THEN BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR. .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....33-37. MIN HUMIDITY........40-45%. 20-FOOT WINDS.......SOUTHWEST WINDS 10-20 MPH. GUSTS UP TO 30 MPH AFTER 1100. TRANSPORT WINDS.....SOUTHWEST 13-24 MPH UNTIL 1200...THEN 24-28 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1100...THEN 1000-1800 FT AGL. SMOKE DISPERSAL.....POOR. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS AROUND 13 MPH WITH GUSTS TO 30 MPH. .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER 0600 UNTIL 1800...THEN CHANCE OF SNOW SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE MID 30S. SOUTHWEST WINDS AROUND 14 MPH WITH GUSTS TO 25 MPH. .SUNDAY...CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 20S. SOUTHWEST WINDS AROUND 17 MPH WITH GUSTS TO 30 MPH. FIRE WEATHER TABLE FOR GRIZZLY 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 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 11/17-08 64 30 15 66 W 5 5 2 1 NW59 1600 W 8 11564 P 11/17-09 64 30 18 64 W 6 1 2430 W 12 26901 P 11/17-10 64 30 21 67 W 7 1 3261 W 14 42239 F 11/17-11 58 0 24 68 W 8 8 2 1 NW51 4091 W 16 57577 F 11/17-12 58 0 25 68 W 9 1 3762 W 17 56964 F 11/17-13 58 0 26 64 W 10 1 3434 W 20 56351 F 11/17-14 48 0 24 70 W 12 17 2 1 NW48 3105 W 21 55739 F 11/17-15 48 0 23 72 W 13 1 2631 W 21 48021 F 11/17-16 48 0 21 81 W 13 1 2157 W 22 40303 F 11/17-17 38 0 20 85 SW 14 21 2 1 NW49 1683 W 22 32584 P 11/17-18 38 0 18 88 SW 15 1 1298 W 22 24818 P 11/17-19 38 0 18 87 W 16 1 913 W 21 17051 P 11/17-20 38 0 18 84 W 17 26 2 1 NW51 528 W 21 9284 P 11/17-21 38 0 16 87 W 16 1 430 W 18 7265 P 11/17-22 38 0 16 85 SW 16 1 331 SW 17 5246 P 11/17-23 30 0 16 83 SW 15 23 2 1 NW48 233 SW 16 3227 P 11/18-00 30 0 14 90 SW 16 1 204 SW 17 2929 P 11/18-01 30 0 13 93 W 17 1 176 W 17 2631 P 11/18-02 30 0 13 93 W 18 28 2 1 NW49 147 W 18 2333 P 11/18-03 30 0 17 68 SW 16 1 168 SW 16 2365 P 11/18-04 30 0 17 59 SW 14 1 189 SW 15 2397 P 11/18-05 16 0 16 55 SW 12 17 3 1 W55 209 SW 14 2429 P 11/18-06 16 0 18 51 SW 10 1 232 SW 14 2780 P 11/18-07 16 0 20 51 SW 12 1 255 SW 14 3132 P 11/18-08 16 0 23 50 SW 12 17 3 1 W58 278 SW 15 3483 P 11/18-09 16 0 27 46 SW 13 1 548 SW 17 10128 P 11/18-10 16 0 31 42 SW 14 1 861 SW 21 17382 P 11/18-11 25 0 33 41 SW 15 24 3 1 W47 1173 SW 24 24635 P 11/18-12 25 0 35 41 SW 16 1 1349 SW 25 30661 P 11/18-13 25 0 35 41 SW 17 1 1526 SW 28 36687 P 11/18-14 25 0 36 40 SW 17 28 3 1 W49 1702 SW 29 42712 F 11/18-15 25 0 35 41 SW 17 1 1497 SW 28 36786 P 11/18-16 25 0 34 44 SW 17 1 1293 SW 28 30859 P 11/18-17 17 0 32 48 SW 16 25 3 1 W53 1088 SW 26 24932 P 11/18-18 17 0 30 53 SW 15 1 883 SW 24 19312 P 11/18-19 17 0 29 58 SW 14 1 678 SW 22 13692 P 11/18-20 17 0 28 61 SW 13 21 4 1 W63 474 SW 20 8071 P 11/18-21 17 0 28 65 SW 13 1 436 SW 18 7150 P 11/18-22 17 0 27 68 SW 14 1 398 SW 18 6229 P 11/18-23 12 0 27 71 SW 14 22 3 1 W56 360 SW 17 5308 P 11/19-00 12 0 26 74 SW 13 1 331 SW 16 4556 P 11/19-01 12 0 26 76 SW 12 1 302 SW 14 3805 P 11/19-02 12 0 25 78 SW 10 16 3 1 W61 274 SW 13 3053 P 11/19-03 12 0 25 81 SW 12 1 257 SW 14 3020 P 11/19-04 12 0 25 83 SW 13 1 240 SW 15 2987 P 11/19-05 12 0 25 85 SW 14 22 3 1 W68 223 SW 15 2954 P 11/19-06 12 0 24 85 SW 14 1 274 SW 16 3740 P 11/19-07 12 0 25 81 SW 13 1 324 SW 16 4525 P 11/19-08 12 0 28 71 SW 13 21 3 1 W66 375 SW 16 5310 P 11/19-09 12 0 31 60 SW 13 1 816 SW 20 15701 P 11/19-10 12 0 35 51 SW 13 1 1257 SW 22 26093 P 11/19-11 18 0 36 47 SW 14 22 3 1 W61 1698 SW 24 36484 P 11/19-12 18 0 38 45 SW 15 1 2024 SW 26 48319 F 11/19-13 18 0 38 46 SW 16 1 2350 SW 29 60155 G 11/19-14 18 0 39 46 SW 17 28 3 1 W59 2675 SW 31 71991 G 11/19-15 18 0 38 48 SW 16 1 2253 SW 29 57424 F 11/19-16 18 0 37 51 SW 15 1 1831 SW 25 42858 F 11/19-17 28 0 35 56 SW 14 22 3 1 W59 1408 SW 23 28291 P 11/19-18 28 0 32 61 SW 13 1 1066 SW 21 20536 P 11/19-19 28 0 31 64 SW 12 1 723 SW 18 12780 P 11/19-20 28 0 30 65 SW 12 18 3 1 W58 380 SW 15 5025 P 11/19-21 28 0 29 67 SW 13 1 339 SW 16 4573 P 11/19-22 28 0 29 67 SW 13 1 299 SW 16 4122 P 11/19-23 41 0 28 69 SW 14 22 2 1 SW61 258 SW 16 3671 P 11/20-00 41 0 28 71 SW 13 1 251 SW 15 3371 P 11/20-01 41 0 27 75 SW 13 1 243 SW 15 3070 P 11/20-02 41 0 27 78 SW 12 18 3 1 SW59 236 SW 14 2770 P 11/20-03 41 0 26 81 SW 12 1 225 SW 14 2721 P 11/20-04 41 0 26 83 SW 13 1 214 SW 15 2672 P 11/20-05 49 14 26 86 SW 14 22 2 1 SW60 203 SW 15 2623 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...LESZCYNSKI...WFO BOULDER REQUESTED BY...FELIX VALDEZ REASON FOR REQUEST...PRESCRIBED .TAG 20101117.GRIZZ.01/BOU