FNUS75 KBOU 201225 FWSBOU SPOT FORECAST FOR HALL PA4 UNIT 5 STAND 3...COUNTY NATIONAL WEATHER SERVICE DENVER CO 525 AM MST THU JAN 20 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A SHORTWAVE RIDGE WILL OCCUR IN NORTHWESTERLY FLOW ALOFT OVER THE STATE TODAY BRINGING DRY WEATHER. COLDER TEMPERATURES FROM YESTERDAYS FRONT ALONG WITH SLIGHT WARMING ALOFT UNDER THE RIDGE WILL AID IN SMOKE DISPERSAL BARELY GETTING INTO THE GOOD CATEGORY TODAY. WESTERLY WINDS WILL BE INCREASING THIS AFTERNOON...THEN EVEN MORE THROUGH THE NIGHT TONIGHT AS A JET MOVES OVERHEAD AND A LEE TROUGH DEEPENS OVER THE PLAINS. THESE WINDS WILL MOST LIKELY TREND FROM THE SOUTHWEST TODAY DUE TO FUNNELING FROM SAINT VRAIN CREEK VALLEY. FRIDAY WILL BE ABOUT 10 DEGREES WARMER AND WILL HAVE BETTER DISPERSAL AS A WEATHER DISTURBANCE MOVES SOUTH ALONG THE NORTHERN ROCKIES. MORE SNOW WILL BE ON THE WAY SATURDAY WITH THE PASSING OF THE DISTURBANCE...BRINGING A 30 PERCENT CHANCE OF SNOW OVER THE BURN SITE THAT DAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%). MAX TEMPERATURE.....34. MIN HUMIDITY........38%. 20-FOOT WINDS.......WEST WINDS 11-17 MPH WITH GUSTS TO 30 MPH. TRANSPORT WINDS.....WEST 8-16 MPH UNTIL 1200...THEN NORTHWEST 20-24 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900. 2000-3000 FT AGL AFTER 1100. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1100...THEN GOOD UNTIL 1300...THEN FAIR UNTIL 1600...THEN POOR. HAINES INDEX........3 VERY LOW. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(40-50%). MIN TEMPERATURE.....21. MAX HUMIDITY........65%. 20-FOOT WINDS.......WINDY. WEST WINDS 22-32 MPH. GUSTS UP TO 45 MPH. TRANSPORT WINDS.....WEST 24-28 MPH UNTIL 2400...THEN 29-40 MPH. MIXING HEIGHT.......1000-1200 FT AGL UNTIL 2000...THEN BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 VERY LOW. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY(35-45%) UNTIL 1100...THEN MOSTLY SUNNY. MAX TEMPERATURE.....43. MIN HUMIDITY........32%. 20-FOOT WINDS.......BREEZY. WEST WINDS 18-28 MPH WITH GUSTS TO 35 MPH. TRANSPORT WINDS.....NORTHWEST 28-36 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900...THEN 2200-3200 FT AGL UNTIL 1100...THEN 4000-5000 FT AGL UNTIL 1700...THEN 2400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN GOOD UNTIL 1100...THEN VERY GOOD UNTIL 1300...THEN EXCELLENT UNTIL 1500...THEN VERY GOOD UNTIL 1700...THEN GOOD. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0600 UNTIL 1800...THEN CHANCE OF SNOW. LOWS IN THE LOWER 20S. HIGHS IN THE LOWER 40S. NORTHWEST WINDS AROUND 16 MPH WITH GUSTS TO 35 MPH. .SUNDAY...PARTLY CLOUDY. CHANCE OF SNOW UNTIL 0600...THEN SLIGHT CHANCE OF SNOW AFTER 1800. LOWS AROUND 20. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 10 MPH. .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600...THEN CHANCE OF SNOW UNTIL 1800. LOWS AROUND 20. HIGHS IN THE MID 30S. NORTHWEST WINDS AROUND 10 MPH. FIRE WEATHER TABLE FOR HALL PA4 UNIT 5 STAND 3. +++ 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 01/20-05 56 0 11 95 W 3 3 2 1 NW44 429 W 5 1575 P 01/20-06 56 0 11 96 W 5 1 386 W 5 1591 P 01/20-07 33 0 11 94 W 5 1 342 W 6 1606 P 01/20-08 33 0 11 95 W 6 6 2 1 NW38 299 W 6 1622 P 01/20-09 33 0 23 56 W 6 1 1749 W 10 25590 P 01/20-10 33 0 29 44 W 7 1 3198 NW 14 49559 F 01/20-11 30 0 30 43 W 7 7 2 1 N48 4648 NW 18 73527 G 01/20-12 30 0 30 42 W 7 1 4014 NW 20 65436 G 01/20-13 30 0 30 41 W 7 1 3380 NW 20 57346 F 01/20-14 30 0 31 39 W 8 13 3 1 NW47 2746 NW 21 49255 F 01/20-15 30 0 31 38 W 10 1 2337 NW 22 43700 F 01/20-16 30 0 30 38 W 14 1 1929 W 23 38144 P 01/20-17 43 0 28 40 W 17 28 3 1 NW44 1521 W 24 32589 P 01/20-18 43 0 27 42 W 18 1 1243 W 24 26404 P 01/20-19 43 0 25 44 W 18 1 966 W 24 20220 P 01/20-20 43 0 24 46 W 20 31 3 1 NW51 688 W 23 14035 P 01/20-21 43 0 23 49 W 22 1 576 W 25 12201 P 01/20-22 43 0 22 51 W 23 1 464 W 26 10366 P 01/20-23 50 2 22 53 W 25 40 3 1 NW44 351 W 28 8532 P 01/21-00 50 2 21 54 W 26 1 435 W 32 12799 P 01/21-01 50 2 21 54 W 28 1 518 W 37 17067 P 01/21-02 50 2 21 54 W 28 44 3 1 NW26 601 W 40 21335 P 01/21-03 50 2 21 54 W 28 1 504 W 37 16819 P 01/21-04 50 2 21 55 W 29 1 407 W 33 12304 P 01/21-05 43 0 21 57 W 29 44 2 1 NW51 309 W 29 7789 P 01/21-06 41 0 22 60 W 26 1 366 W 29 9068 P 01/21-07 39 0 23 60 W 24 1 423 W 29 10348 P 01/21-08 38 0 23 65 W 23 35 3 1 NW48 480 W 28 11628 P 01/21-09 36 0 35 41 W 21 1 1930 NW 30 54786 F 01/21-10 34 0 40 34 W 20 1 3381 NW 32 97944 G 01/21-11 27 0 42 34 W 20 30 2 1 NW45 4831 NW 33 141103 V 01/21-12 27 0 42 33 W 20 1 5079 NW 35 154948 E 01/21-13 27 0 43 32 W 21 1 5327 NW 37 168793 E 01/21-14 27 0 43 34 W 21 31 2 1 N59 5575 NW 38 182638 E 01/21-15 27 0 43 34 W 20 1 4528 NW 36 143570 V 01/21-16 27 0 39 39 W 17 1 3482 NW 33 104503 V 01/21-17 29 0 33 48 W 16 24 3 1 N69 2435 NW 31 65435 G 01/21-18 33 0 32 51 W 15 1 1907 NW 25 47480 F 01/21-19 37 0 31 50 W 15 1 1379 NW 21 29524 P 01/21-20 41 0 30 52 W 14 21 4 1 N44 850 NW 16 11569 P 01/21-21 45 0 30 51 W 14 1 719 NW 15 9467 P 01/21-22 49 0 31 49 W 15 1 588 W 14 7365 P 01/21-23 51 0 29 53 W 15 23 4 1 NW36 457 W 14 5263 P 01/22-00 54 0 26 58 W 16 1 398 W 15 5032 P 01/22-01 58 0 27 58 W 17 1 339 W 17 4802 P 01/22-02 61 0 26 60 W 18 28 2 1 NW39 279 W 18 4572 P 01/22-03 65 0 24 66 W 20 1 277 W 20 4729 P 01/22-04 68 0 23 71 W 21 1 274 W 21 4887 P 01/22-05 69 10 25 67 W 22 33 2 1 NW46 271 W 22 5045 P 01/22-06 71 10 23 73 W 22 1 287 W 22 5569 P 01/22-07 73 10 25 70 W 22 1 302 W 23 6093 P 01/22-08 75 10 24 73 NW 22 32 2 1 W37 318 NW 24 6618 P 01/22-09 77 10 35 47 NW 21 1 1745 NW 28 52486 F 01/22-10 79 10 40 39 NW 21 1 3171 W 32 98355 G 01/22-11 80 19 41 37 NW 20 30 2 1 W26 4597 W 36 144224 V 01/22-12 80 19 42 36 NW 18 1 5141 NW 33 148698 V 01/22-13 80 19 43 34 NW 17 1 5684 NW 31 153172 E 01/22-14 80 19 42 35 NW 15 23 3 1 W23 6227 NW 29 157646 E 01/22-15 80 19 42 34 N 14 1 4926 NW 25 116728 V 01/22-16 80 19 36 42 N 13 1 3624 NW 21 75809 G 01/22-17 80 30 29 56 N 12 17 3 1 NW24 2322 NW 17 34890 P 01/22-18 80 30 27 60 N 12 1 2100 NW 17 32319 P 01/22-19 80 30 28 59 NW 10 1 1878 NW 18 29747 P 01/22-20 78 30 26 64 NW 10 16 3 1 W28 1656 NW 18 27175 P 01/22-21 73 30 27 64 NW 9 1 1437 NW 17 22045 P 01/22-22 68 30 28 62 NW 8 1 1219 NW 15 16915 P 01/22-23 63 30 25 70 NW 7 7 3 1 NW21 1000 NW 14 11785 P 01/23-00 59 30 22 77 NW 7 1 778 NW 14 9205 P 01/23-01 54 30 22 74 NW 7 1 556 NW 14 6624 P 01/23-02 49 30 21 75 NW 8 8 3 1 NW25 334 NW 14 4044 P 01/23-03 44 30 19 81 NW 9 1 321 NW 15 4107 P 01/23-04 39 30 18 83 W 9 1 307 NW 16 4171 P 01/23-05 37 2 19 74 W 10 16 3 1 N39 294 W 16 4235 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...JAY STALNACKER FMO REASON FOR REQUEST...PRESCRIBED .TAG 20110120.HALLP.01/BOU