FNUS75 KBOU 091521 FWSBOU SPOT FORECAST FOR PRATT CREEK...USFS NATIONAL WEATHER SERVICE DENVER CO 821 AM MST FRI DEC 9 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...BRISK NORTHWEST FLOW ALOFT WILL PERSIST TODAY...AND MIXING WILL NUDGE SMOKE DISPERSION INTO THE FAIR CATEGORY FOR A FEW HOURS THIS AFTERNOON. A WEAK RIDGE ALOFT ON SATURDAY WILL REDUCE WIND SPEEDS...THEN A DEVELOPING TROUGH OVER THE SOUTHWEST US WILL INCREASE SOUTHWESTERLY FLOW ON SUNDAY. SMOKE DISPERSION MAY EDGE INTO THE GOOD CATEGORY ON SUNDAY AFTERNOON. IT WILL BE DRY THROUGH THE WEEKEND. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....24. MIN HUMIDITY........48%. 20-FOOT WINDS.......WEST WINDS 12-17 MPH WITH GUSTS TO 25 MPH. TRANSPORT WINDS.....WEST 20-28 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000...THEN 1400-2000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 VERY LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....12. MAX HUMIDITY........82%. 20-FOOT WINDS.......WEST WINDS 9-15 MPH. TRANSPORT WINDS.....WEST 17-28 MPH UNTIL 2400...THEN 12-16 MPH. MIXING HEIGHT.......1200 FT AGL UNTIL 1900...THEN BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 VERY LOW. .SATURDAY... SKY/WEATHER.........SUNNY. MAX TEMPERATURE.....33. MIN HUMIDITY........45%. 20-FOOT WINDS.......WEST WINDS 6-12 MPH. TRANSPORT WINDS.....WEST 4-12 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 LOW. FIRE WEATHER TABLE FOR PRATT CREEK. +++ 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 12/09-08 13 0 0 12 80 W14 22 2 1 NW40 245 W20 4279 P 12/09-09 13 0 0 17 67 W14 22 2 1 NW39 832 W23 19620 P 12/09-10 13 0 0 21 57 W13 21 2 1 NW38 1419 W26 34962 P 12/09-11 13 0 0 24 52 W13 21 2 1 NW37 2006 W29 50304 F 12/09-12 19 0 0 24 52 W13 20 2 1 NW36 1961 W29 48654 F 12/09-13 19 0 0 24 53 W13 21 2 1 NW35 1916 W29 47004 F 12/09-14 19 0 0 24 51 W13 21 2 1 NW33 1872 W28 45354 F 12/09-15 19 0 0 24 50 W13 21 2 1 NW32 1737 W28 41839 F 12/09-16 19 0 0 24 49 W13 21 2 1 NW32 1602 W28 38323 P 12/09-17 15 0 0 24 48 W13 21 2 1 NW31 1467 W28 34808 P 12/09-18 15 0 0 23 50 W13 20 2 1 NW30 1181 W28 27928 P 12/09-19 15 0 0 21 51 W12 18 2 1 NW30 896 W26 21048 P 12/09-20 15 0 0 20 51 W12 18 2 1 NW29 611 W26 14168 P 12/09-21 15 0 0 14 65 W12 18 2 1 NW26 462 W23 10174 P 12/09-22 15 0 0 14 64 W12 18 2 1 NW25 312 W20 6179 P 12/09-23 15 0 0 13 63 W12 18 2 1 NW24 163 W15 2185 P 12/10-00 15 0 0 13 61 W12 18 2 1 N23 159 W15 2082 P 12/10-01 15 0 0 13 58 W10 17 2 1 N22 155 W15 1979 P 12/10-02 15 0 0 13 57 W10 16 2 1 N21 151 W14 1876 P 12/10-03 15 0 0 13 57 W10 16 2 1 N21 147 W14 1752 P 12/10-04 15 0 0 13 58 W 9 15 3 1 N21 144 W13 1628 P 12/10-05 6 0 0 13 61 W 9 15 3 1 N20 140 W13 1504 P 12/10-06 6 0 0 13 68 W 9 15 3 1 N18 137 W13 1476 P 12/10-07 6 0 0 13 78 W10 16 4 1 N17 134 W13 1448 P 12/10-08 6 0 0 15 82 W10 16 4 1 N16 131 W13 1420 P 12/10-09 6 0 0 19 72 W 9 15 4 1 N15 221 W12 2022 P 12/10-10 6 0 0 24 63 W 8 14 4 1 N14 311 W10 2624 P 12/10-11 6 0 0 27 55 W 7 7 4 1 N12 401 W 9 3227 P 12/10-12 6 0 0 30 50 W 6 6 4 1 N 9 551 W 8 3482 P 12/10-13 6 0 0 31 47 W 5 5 3 1 N 7 701 W 7 3737 P 12/10-14 6 0 0 32 45 W 3 3 3 1 N 6 850 W 6 3991 P 12/10-15 6 0 0 31 45 W 3 3 3 1 N 3 656 W 6 3190 P 12/10-16 6 0 0 30 45 W 5 5 3 1 CALM 461 W 7 2388 P 12/10-17 4 0 0 27 49 SW 6 6 3 1 CALM 267 W 7 1586 P 12/10-18 4 0 0 25 50 SW 7 7 3 1 CALM 236 W 8 1529 P 12/10-19 4 0 0 24 49 SW 8 13 4 1 CALM 205 SW 8 1471 P 12/10-20 4 0 0 23 47 SW 9 15 4 1 CALM 173 SW 9 1414 P 12/10-21 4 0 0 23 44 SW 9 15 4 1 SE 3 164 SW10 1498 P 12/10-22 4 0 0 22 42 SW10 16 4 1 S 5 155 SW12 1582 P 12/10-23 4 0 0 22 40 W10 16 4 1 S 7 147 W13 1666 P 12/11-00 4 0 0 21 40 W12 18 4 1 S 9 148 W15 1864 P 12/11-01 4 0 0 20 41 W13 21 4 1 SW10 149 W16 2062 P 12/11-02 4 0 0 19 42 W14 22 4 1 SW12 151 W17 2260 P 12/11-03 4 0 0 19 44 W14 23 4 1 SW14 150 W18 2383 P 12/11-04 4 0 0 18 46 W15 23 3 1 SW16 148 W20 2506 P 12/11-05 11 0 0 18 50 W15 24 3 1 W18 147 W21 2629 P 12/11-06 11 0 0 17 54 W15 24 3 1 W21 156 W21 2866 P 12/11-07 11 0 0 17 60 W16 25 4 1 W23 165 W22 3103 P 12/11-08 11 0 0 19 61 W16 25 4 1 W24 173 W22 3340 P 12/11-09 11 0 0 24 54 W17 28 4 1 W25 678 W25 17581 P 12/11-10 11 0 0 28 48 W18 29 4 1 W26 1183 W29 31822 P 12/11-11 13 0 0 32 44 W18 30 4 1 W26 1688 W31 46062 F 12/11-12 13 0 0 34 39 W18 30 4 1 W26 2115 W31 55974 F 12/11-13 13 0 0 36 37 W18 29 3 1 SW25 2542 W30 65886 G 12/11-14 13 0 0 36 35 W17 28 3 1 SW25 2969 W30 75798 G 12/11-15 13 0 0 36 34 W16 26 3 1 SW24 2354 W29 59609 F 12/11-16 13 0 0 34 34 W16 25 3 1 SW23 1739 W29 43420 F 12/11-17 14 0 0 30 39 W15 24 3 1 SW21 1124 W28 27232 P 12/11-18 14 0 0 27 41 W14 23 3 1 SW20 857 W25 19986 P 12/11-19 14 0 0 25 42 W14 22 3 1 SW18 591 W22 12741 P 12/11-20 14 0 0 24 43 W13 21 3 1 SW17 324 W20 5495 P 12/11-21 14 0 0 23 43 W12 20 3 1 SW18 299 W18 4743 P 12/11-22 14 0 0 23 43 W12 17 3 1 SW21 274 W16 3990 P 12/11-23 14 0 0 22 43 W10 16 3 1 SW22 249 W15 3238 P 12/12-00 14 0 0 21 44 W 9 15 3 1 SW22 233 W14 2885 P 12/12-01 14 0 0 20 45 W 9 14 3 1 W23 217 W14 2531 P 12/12-02 14 0 0 19 46 W 8 13 3 1 W23 201 W13 2177 P 12/12-03 14 0 0 18 47 W 8 8 3 1 W23 191 W12 1952 P 12/12-04 14 0 0 17 49 W 7 7 3 1 W23 180 W12 1727 P 12/12-05 15 3 1 16 53 W 7 7 3 1 W24 170 W10 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...JOE PARR REASON FOR REQUEST...PRESCRIBED .TAG 20111209.PRATT.01/BOU