FNUS75 KBOU 061701 FWSBOU SPOT FORECAST FOR PLATTE RIVER PILES...USFS NATIONAL WEATHER SERVICE DENVER CO 1000 AM MST TUE JAN 6 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...VERY STRONG NORTH-NORTHWESTERLY FLOW ALOFT WILL CONTINUE OVER THE FORECAST AREA THROUGH WEDNESDAY. THERE WILL BE PLENTY OF MOISTURE AVAILABLE FOR SNOW TO BE LIKELY. STRONG SURFACE WINDS WILL CAUSE WIDESPREAD BLOWING AND DRIFTING SNOW. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1400...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER 1700. MAX TEMPERATURE.....35-40. MIN HUMIDITY........20-30%. 20-FOOT WINDS.......NORTHWEST 10-20 MPH. TRANSPORT WINDS.....NORTHWEST 12-20 MPH. MIXING HEIGHT.......1400-2400 FT AGL UNTIL 1000...THEN 5200-6200 FT AGL UNTIL 1300...THEN 7200-8200 FT AGL UNTIL 1700...THEN 5200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1100...THEN GOOD UNTIL 1200...THEN VERY GOOD UNTIL 1400...THEN EXCELLENT UNTIL 1500...THEN VERY GOOD UNTIL 1700...THEN GOOD. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS UNTIL 0500...THEN SLIGHT CHANCE OF SNOW. MIN TEMPERATURE.....18-25. MAX HUMIDITY........50-60%. 20-FOOT WINDS.......WEST 10-20 MPH. TRANSPORT WINDS.....NORTHWEST 25-36 MPH. MIXING HEIGHT.......3400-4400 FT AGL UNTIL 2100...THEN 800-1800 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 2200. POOR AFTER 2300. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .WEDNESDAY... SKY/WEATHER.........PARTLY CLOUDY(35-45%). MAX TEMPERATURE.....45-50. MIN HUMIDITY........15-23%. 20-FOOT WINDS.......WEST 12-22 MPH. TRANSPORT WINDS.....NORTHWEST 28-36 MPH. MIXING HEIGHT.......1800-2800 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900. FAIR AFTER 1100. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE MID 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 0600. COLDER. LOWS AROUND 20. HIGHS IN THE LOWER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS AROUND 15. HIGHS IN THE UPPER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR PLATTE RIVER PILES. +++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE DIGITAL DATABASE. VALUES IN THE TABLE MAY NOT AGREE WITH INFORMATION IN THE NARRATIVE FORECAST. INFORMATION CONTAINED IN THIS TABLE SHOULD NOT BE CONSIDERED AN OFFICIAL 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 01/06-09 43 0 24 55 W 14 1 2767 NW 20 39019 P 01/06-10 43 0 28 48 NW 13 1 4298 NW 16 53967 F 01/06-11 53 0 32 38 NW 10 10 2 1 NW23 5829 NW 14 68915 G 01/06-12 53 0 34 33 NW 13 1 6818 NW 16 101330 V 01/06-13 53 0 36 29 NW 14 1 7807 NW 20 133746 V 01/06-14 63 0 37 28 NW 15 21 2 1 N38 8797 NW 22 166161 E 01/06-15 63 0 37 28 NW 15 1 7630 NW 22 142649 V 01/06-16 63 0 36 29 NW 15 1 6463 NW 21 119136 V 01/06-17 65 10 33 31 W 14 14 2 1 NW46 5296 NW 21 95624 G 01/06-18 65 10 32 33 W 13 1 4593 NW 23 89144 G 01/06-19 65 10 31 35 W 12 1 3890 NW 25 82665 G 01/06-20 65 10 30 37 W 10 10 2 1 NW43 3186 NW 28 76186 G 01/06-21 65 10 29 39 W 9 1 2764 NW 28 65995 G 01/06-22 65 10 28 41 W 9 1 2342 NW 28 55804 F 01/06-23 67 10 27 43 W 9 14 2 1 NW36 1920 NW 28 45613 F 01/07-00 67 10 26 45 W 9 1 1706 NW 29 42502 F 01/07-01 67 10 26 48 W 10 1 1491 W 31 39390 P 01/07-02 67 10 25 50 W 10 16 2 1 NW24 1277 W 32 36279 P 01/07-03 67 10 25 52 W 12 1 1069 W 33 30849 P 01/07-04 67 10 25 54 W 13 1 860 W 35 25419 P 01/07-05 50 10 25 56 W 14 21 2 1 NW36 652 W 36 19989 P 01/07-06 50 10 25 56 W 14 1 745 W 36 22710 P 01/07-07 50 10 26 54 W 15 1 838 W 35 25432 P 01/07-08 50 10 29 48 W 15 15 2 1 NW36 931 W 35 28153 P 01/07-09 50 10 34 43 W 15 1 1426 NW 35 41494 F 01/07-10 50 10 38 39 W 15 1 1921 NW 33 54836 F 01/07-11 42 10 42 35 W 15 15 2 1 NW26 2417 NW 32 68177 G 01/07-12 42 10 45 31 W 14 1 2567 NW 31 67843 G 01/07-13 42 10 47 29 W 14 1 2718 NW 29 67509 G 01/07-14 42 10 48 28 W 13 13 2 1 NW31 2868 NW 26 67176 G 01/07-15 42 10 47 28 W 12 1 2524 NW 30 63405 G 01/07-16 42 10 46 30 W 10 1 2179 NW 32 59634 F 01/07-17 32 0 41 35 W 9 9 2 1 NW37 1835 NW 35 55863 F 01/07-18 32 0 38 39 W 9 1 1493 NW 33 44423 F 01/07-19 32 0 36 42 W 9 1 1152 NW 32 32984 P 01/07-20 32 0 35 45 W 9 9 2 1 NW28 810 NW 31 21544 P 01/07-21 32 0 33 46 W 9 1 650 W 25 15830 P 01/07-22 32 0 31 46 W 9 1 490 W 21 10117 P 01/07-23 32 0 30 48 W 9 9 2 1 NW29 331 W 15 4403 P 01/08-00 32 0 29 50 W 9 1 289 W 14 3645 P 01/08-01 32 0 28 52 W 9 1 247 W 13 2887 P 01/08-02 32 0 27 54 W 9 9 2 1 NW29 205 W 12 2129 P 01/08-03 32 0 26 56 W 8 1 202 W 12 2084 P 01/08-04 32 0 26 58 W 8 1 199 W 12 2040 P 01/08-05 26 0 26 59 W 8 8 2 1 NW44 197 W 12 1995 P 01/08-06 26 0 26 61 W 8 1 229 W 12 2306 P 01/08-07 26 0 27 60 W 7 1 261 W 12 2617 P 01/08-08 26 0 31 53 W 7 7 3 1 NW36 294 W 12 2928 P 01/08-09 26 0 36 44 W 7 1 734 W 13 8296 P 01/08-10 26 0 42 36 W 6 1 1174 W 13 13664 P 01/08-11 26 0 47 30 W 6 6 3 1 NW46 1615 W 14 19031 P 01/08-12 26 0 51 26 W 6 1 2679 W 17 48116 F 01/08-13 26 0 53 22 W 6 1 3744 W 22 77201 G 01/08-14 26 0 54 21 W 6 6 3 1 NW45 4808 W 25 106286 V 01/08-15 26 0 53 20 W 6 1 3667 W 24 79940 G 01/08-16 26 0 51 21 W 6 1 2527 W 23 53594 F 01/08-17 26 0 46 24 W 6 6 4 1 W46 1386 W 23 27248 P 01/08-18 26 0 42 27 W 6 1 1018 W 18 19106 P 01/08-19 26 0 40 29 W 6 1 651 W 15 10963 P 01/08-20 29 0 38 31 W 6 6 4 1 NW36 283 W 12 2820 P 01/08-21 29 0 35 34 W 6 1 239 W 10 2292 P 01/08-22 29 0 33 37 W 7 1 195 W 10 1763 P 01/08-23 29 0 32 39 W 7 7 4 1 W28 151 W 9 1235 P 01/09-00 29 0 30 42 W 8 1 138 W 10 1190 P 01/09-01 29 0 29 45 W 8 1 126 W 10 1145 P 01/09-02 53 0 28 47 W 9 9 4 1 W40 114 W 12 1100 P 01/09-03 53 0 27 49 W 10 1 113 W 12 1153 P 01/09-04 53 0 26 50 W 10 1 113 W 13 1206 P 01/09-05 53 10 26 51 W 10 10 3 1 W45 112 W 13 1259 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...KRIS HEINY REASON FOR REQUEST...PRESCRIBED .TAG 20090106.PLATT.01/BOU