FNUS75 KBOU 151203 FWSBOU SPOT FORECAST FOR SKY ISLAND - UNIT P4A...USFS NATIONAL WEATHER SERVICE DENVER CO 603 AM MDT THU OCT 15 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...DRY WESTERLY FLOW ALOFT WILL PREVAIL THROUGH TODAY. THE FLOW ALOFT WILL BE STRONG THROUGH THIS AFTERNOON AND SOME OF THESE WINDS MAY MIX TO THE SURFACE FROM THE LATE MORNING ONWARD. FLOW ALOFT WILL TRANSITION TO NORTHWESTERLY TONIGHT AS AN UPPER RIDGE BUILDS OVER THE DESERT SOUTHWEST. FLOW ALOFT WILL DECREASE TO MODERATE ON FRIDAY AS THE UPPER RIDGE CONTINUES BUILDING INTO WESTERN COLORADO. TEMPERATURES AND HUMIDITIES WILL BE AROUND SEASONAL NORMALS. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....48-56. MIN HUMIDITY........22-30%. 20-FOOT WINDS.......NORTHWEST 12-20 MPH...GUSTS UP TO 28 MPH AFTER 1100. TRANSPORT WINDS.....NORTHWEST 20-28 MPH. MIXING HEIGHT.......1000-1500 FT AGL UNTIL 1000. 6500-7500 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN GOOD UNTIL 1300...THEN EXCELLENT UNTIL 1700...THEN GOOD. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....24-32. MAX HUMIDITY........70-78%. 20-FOOT WINDS.......NORTHWEST 8-14 MPH UNTIL 2100...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH. TRANSPORT WINDS.....NORTHWEST 5-16 MPH. MIXING HEIGHT.......5400 FT AGL UNTIL 1900. 500-1000 FT AGL AFTER 2100. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2100. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%). MAX TEMPERATURE.....54-60. MIN HUMIDITY........20-28%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....NORTHWEST 8-16 MPH. MIXING HEIGHT.......1000-2000 FT AGL UNTIL 1000...THEN 5800-6800 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1200...THEN GOOD UNTIL 1700...THEN FAIR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...MOSTLY CLEAR. LOWS IN THE UPPER 20S. HIGHS IN THE MID 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS AROUND 60. WEST WINDS AROUND 8 MPH. .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AFTER 0600. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 9 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR SKY ISLAND - UNIT P4A. +++ 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 10/15-05 13 4 31 85 W 9 1 162 W 12 1642 P 10/15-06 2 0 31 85 W 9 9 2 1 W49 156 W 12 1581 P 10/15-07 2 0 32 82 W 10 1 957 W 17 21302 P 10/15-08 2 0 37 68 W 12 1 1759 W 22 41023 F 10/15-09 12 0 43 53 W 13 13 2 1 NW47 2560 W 28 60744 G 10/15-10 12 0 49 41 W 14 1 4078 NW 28 97464 G 10/15-11 12 0 52 35 NW 16 1 5597 NW 28 134184 V 10/15-12 22 0 54 29 NW 17 26 2 1 NW54 7115 NW 28 170904 E 10/15-13 22 0 55 26 NW 18 1 7253 NW 26 163395 E 10/15-14 22 0 56 25 NW 18 1 7390 NW 24 155886 E 10/15-15 22 0 56 24 NW 17 26 2 1 NW60 7527 NW 23 148377 V 10/15-16 22 0 55 25 NW 16 1 6796 NW 21 123541 V 10/15-17 22 0 54 27 NW 14 1 6065 NW 18 98704 G 10/15-18 20 0 51 35 NW 12 12 2 1 NW52 5334 NW 16 73868 G 10/15-19 20 0 46 43 NW 8 1 3686 NW 13 49876 F 10/15-20 20 0 42 50 NW 6 1 2038 NW 9 25884 P 10/15-21 20 0 40 54 NW 3 3 2 1 NW45 390 NW 6 1892 P 10/15-22 20 0 38 59 NW 3 1 348 NW 6 1712 P 10/15-23 20 0 37 61 W 5 1 307 NW 6 1532 P 10/16-00 38 0 35 65 W 6 6 2 1 NW47 265 NW 6 1353 P 10/16-01 38 0 34 68 W 6 1 253 W 6 1283 P 10/16-02 38 0 33 70 W 6 1 241 W 6 1214 P 10/16-03 38 0 32 72 W 6 6 2 1 NW52 228 W 6 1145 P 10/16-04 38 0 31 73 W 6 1 217 W 6 1150 P 10/16-05 38 0 31 74 W 6 1 205 W 7 1156 P 10/16-06 44 0 30 74 W 6 6 2 1 NW53 194 W 7 1161 P 10/16-07 44 0 32 67 W 5 1 1058 NW 7 6959 P 10/16-08 44 0 36 54 W 5 1 1923 NW 7 12758 P 10/16-09 44 0 42 40 W 3 3 2 1 NW38 2787 NW 8 18556 P 10/16-10 44 0 48 31 NW 2 1 3822 NW 10 38229 P 10/16-11 44 0 51 27 CALM 1 4857 NW 13 57901 F 10/16-12 44 0 53 24 CALM 1 2 1 NW22 5891 NW 15 77574 G 10/16-13 44 0 54 23 CALM 1 6338 NW 14 78110 G 10/16-14 44 0 55 24 NW 2 1 6785 NW 14 78645 G 10/16-15 44 0 56 24 NW 3 3 2 1 NW26 7232 NW 13 79180 G 10/16-16 44 0 54 25 N 5 1 6531 NW 10 64025 G 10/16-17 44 0 53 28 N 6 1 5829 NW 9 48869 F 10/16-18 25 0 50 31 NE 6 6 2 1 NW39 5128 N 8 33714 P 10/16-19 25 0 45 38 NE 5 1 3556 N 7 23028 P 10/16-20 25 0 42 45 NE 3 1 1984 NE 6 12342 P 10/16-21 25 0 40 49 NE 2 2 2 1 NW37 413 NE 5 1656 P 10/16-22 25 0 38 54 NE 2 1 368 NE 5 1429 P 10/16-23 25 0 36 57 NE 2 1 323 NE 5 1202 P 10/17-00 25 0 35 62 NE 2 2 2 1 NW28 278 NE 5 975 P 10/17-01 25 0 34 65 E 2 1 291 NE 3 922 P 10/17-02 25 0 33 68 CALM 1 304 E 3 870 P 10/17-03 25 0 32 71 CALM 1 2 1 N22 316 E 3 817 P 10/17-04 25 0 31 74 CALM 1 313 SE 2 608 P 10/17-05 25 0 31 76 CALM 1 310 CALM 399 P 10/17-06 20 0 30 78 W 2 2 2 1 N21 307 CALM 190 P 10/17-07 20 0 31 74 W 3 1 1035 W 2 4744 P 10/17-08 20 0 35 63 SW 3 1 1763 SW 5 9298 P 10/17-09 20 0 42 48 SW 5 5 2 1 N20 2491 SW 7 13852 P 10/17-10 20 0 48 39 SW 6 1 3402 SW 6 16935 P 10/17-11 20 0 51 34 SW 6 1 4312 W 6 20018 P 10/17-12 20 0 53 31 S 7 7 3 1 N15 5222 W 5 23101 P 10/17-13 20 0 54 30 S 7 1 5428 W 5 23801 P 10/17-14 20 0 55 29 S 7 1 5634 W 5 24500 P 10/17-15 20 0 55 28 S 7 7 2 1 NW12 5840 W 5 25200 P 10/17-16 20 0 54 28 S 6 1 4922 W 6 22676 P 10/17-17 20 0 53 29 S 6 1 4005 SW 6 20152 P 10/17-18 15 0 50 32 S 6 6 2 1 NW13 3087 SW 7 17628 P 10/17-19 15 0 46 38 S 7 1 2255 SW 8 13470 P 10/17-20 15 0 42 44 S 7 1 1424 S 9 9311 P 10/17-21 15 0 40 47 S 7 7 2 1 NW14 592 S 10 5153 P 10/17-22 15 0 38 51 SW 8 1 479 SW 9 4104 P 10/17-23 15 0 37 53 W 8 1 366 W 9 3055 P 10/18-00 15 0 35 61 W 8 8 3 1 NW17 253 W 9 2006 P 10/18-01 15 0 34 60 W 9 1 213 W 9 1740 P 10/18-02 15 0 33 59 W 9 1 173 W 10 1473 P 10/18-03 15 0 33 58 W 9 9 4 1 NW15 133 W 10 1207 P 10/18-04 15 0 32 57 W 9 1 124 W 10 1155 P 10/18-05 15 0 31 56 W 9 1 116 W 12 1103 P 10/18-06 40 0 31 51 W 10 10 5 1 W14 107 W 12 1051 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 $$ DANKERS...WFO BOULDER REQUESTED BY...MIKE HESSLER REASON FOR REQUEST...PRESCRIBED .TAG 20091015.SKYIS.02/BOU