FNUS75 KBOU 072210 FWSBOU SPOT FORECAST FOR FOURMILE CANYON...USFS NATIONAL WEATHER SERVICE DENVER CO 338 PM MDT TUE SEP 7 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE ALOFT WILL SHIFT EAST OF COLORADO TONIGHT AS MOISTURE WILL INCREASE LATER TONIGHT. NO SHOWERS OR THUNDERSTORMS ARE NOT EXPECTED UNTIL DAYTIME ON WEDNESDAY. AS THE HIGH PRESSURE SHIFTS EAST...A STRONGER SOUTHWEST FLOW PATTERN WILL DEVELOP LATER TONIGHT AND CONTINUE ON WEDNESDAY. LIGHT DRAINAGE WINDS ARE EXPECTED THIS EVENING...BUT STRONGER SOUTHWEST WINDS WILL DEVELOP LATER TONIGHT AND WEDNESDAY. THE STRONGER GUSTS WILL REMAIN OVER RIDGETOPS WITH THE LIGHTER WINDS IN THE VALLEY BOTTOMS. THERE WILL BE ENOUGH MOISTURE FOR ISOLATED THUNDERSTORMS ON WEDNESDAY. THE MAIN IMPACT WITH THE STORMS WILL BE GUSTY AND ERRATIC WINDS. WILL PLAN ON SENDING ANOTHER FORECAST OUT BY 2200 HOURS. PLEASE CALL IF YOU NEED MORE INFORMATION OR AN EARLIER UPDATE. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....72-76. MIN HUMIDITY........13%. 20-FOOT WINDS.......EAST TO SOUTHEAST WINDS 5-12 MPH. TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH. MIXING HEIGHT.......6500-7200 FT AGL. SMOKE DISPERSAL.....GOOD. HAINES INDEX........3 VERY LOW. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 2300...THEN MOSTLY CLOUDY. MIN TEMPERATURE.....48-53. MAX HUMIDITY........50-58%. 20-FOOT WINDS.......SOUTHEAST WINDS 4-11 MPH UNTIL 2100...THEN SOUTHWEST 10-16 MPH. GUSTS TO 30 MPH ON RIDGES AFTER 2400. TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH UNTIL 2400...THEN 16-24 MPH. MIXING HEIGHT.......6600 FT AGL UNTIL 1900. SMOKE DISPERSAL.....FAIR UNTIL 1900...THEN POOR. HAINES INDEX........3 VERY LOW. .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....70-74. MIN HUMIDITY........34-38%. 20-FOOT WINDS.......SOUTHWEST WINDS 10-16 MPH WITH GUSTS TO 30 MPH ON RIDGES. TRANSPORT WINDS.....WEST 24-28 MPH UNTIL 1200...THEN SOUTHWEST 12-20 MPH. MIXING HEIGHT.......7400-8400 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 0800...THEN FAIR UNTIL 0900...THEN GOOD UNTIL 1100...THEN VERY GOOD UNTIL 1200...THEN EXCELLENT UNTIL 1300...THEN VERY GOOD UNTIL 1500...THEN GOOD. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. WEST WINDS AROUND 11 MPH WITH GUSTS TO 30 MPH. .FRIDAY...PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. WEST WINDS AROUND 14 MPH WITH GUSTS TO 35 MPH. .SATURDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS AROUND 70. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR FOURMILE CANYON. +++ 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 09/07-15 7 0 71 16 SE 7 7 3 1 W29 7601 SW 12 74380 G 09/07-16 20 0 71 15 SE 8 7 1 7159 SW 10 63722 G 09/07-17 20 0 70 13 SE 8 7 1 6717 SW 9 53063 F 09/07-18 33 3 70 13 SE 8 13 3 1 SW22 6274 SW 8 42404 F 09/07-19 33 3 68 15 SE 6 1 4817 SW 8 31821 P 09/07-20 39 3 64 19 NW 2 1 3361 SW 7 21238 P 09/07-21 39 3 61 24 CALM 1 3 1 SW20 1904 SW 7 10655 P 09/07-22 55 3 59 30 W 3 1 1672 SW 9 12731 P 09/07-23 55 3 58 37 W 8 1 1440 SW 13 14807 P 09/08-00 55 3 57 44 W 12 18 2 1 SW48 1208 SW 16 16883 P 09/08-01 55 3 56 48 W 14 1 1061 SW 17 15958 P 09/08-02 55 3 55 51 SW 14 1 914 SW 20 15033 P 09/08-03 55 3 54 52 SW 14 22 2 1 W48 766 SW 21 14107 P 09/08-04 55 3 53 55 SW 14 1 670 SW 23 12973 P 09/08-05 55 3 52 57 W 14 1 573 W 24 11839 P 09/08-06 63 10 52 58 W 14 22 2 2 W41 477 W 26 10704 P 09/08-07 63 10 53 57 W 13 2 1146 W 28 28228 P 09/08-08 63 10 56 53 W 12 2 1814 W 29 45751 F 09/08-09 63 10 59 49 W 10 17 2 2 SW44 2482 W 30 63275 G 09/08-10 63 10 63 44 W 12 2 4068 W 28 90271 G 09/08-11 63 10 66 40 SW 12 2 5654 W 25 117267 V 09/08-12 72 20 69 37 SW 12 18 2 3 SW41 7240 SW 23 144264 V 09/08-13 72 20 70 36 S 10 3 7554 SW 18 120460 V 09/08-14 72 20 70 36 S 9 3 7867 SW 15 96655 G 09/08-15 72 20 70 37 S 8 13 2 3 SW20 8181 S 10 72851 G 09/08-16 72 20 70 39 S 7 3 8132 SW 13 85421 G 09/08-17 72 20 69 41 SW 6 3 8082 SW 15 97991 G 09/08-18 72 20 70 41 SW 6 6 2 3 SW24 8033 SW 16 110561 V 09/08-19 72 20 67 45 SW 6 3 6529 SW 16 89955 G 09/08-20 72 20 64 50 W 6 3 5026 SW 16 69349 G 09/08-21 72 20 62 53 W 6 6 2 3 SW25 3523 SW 16 48743 F 09/08-22 72 20 60 56 W 7 3 863 W 6 4180 P 09/08-23 72 20 59 58 W 7 3 570 W 7 2907 P 09/09-00 38 6 56 62 W 8 13 2 1 SW25 276 W 7 1635 P 09/09-01 38 6 55 66 W 9 1 242 W 7 1469 P 09/09-02 38 6 53 68 W 9 1 208 W 7 1302 P 09/09-03 38 6 52 69 W 9 14 2 1 SW31 174 W 8 1136 P 09/09-04 38 6 52 69 W 9 1 178 W 8 1185 P 09/09-05 38 6 52 68 W 8 1 182 W 8 1234 P 09/09-06 42 4 52 66 W 8 13 2 1 SW33 187 W 8 1283 P 09/09-07 42 4 53 63 W 9 1 1461 W 10 20361 P 09/09-08 42 4 57 55 W 9 1 2735 SW 14 39439 P 09/09-09 42 4 62 46 W 10 16 2 1 SW30 4010 SW 17 58517 F 09/09-10 42 4 66 39 W 10 1 5305 SW 18 85656 G 09/09-11 42 4 68 35 SW 9 1 6601 SW 20 112797 V 09/09-12 50 6 70 31 SW 9 15 2 1 SW21 7896 SW 21 139937 V 09/09-13 50 6 71 29 SW 9 1 8146 SW 22 154574 E 09/09-14 50 6 72 27 SW 9 1 8396 SW 23 169213 E 09/09-15 50 6 73 26 SW 10 16 2 1 SW35 8646 SW 25 183851 E 09/09-16 50 6 73 26 SW 12 1 8432 SW 26 186290 E 09/09-17 50 6 71 28 W 13 1 8219 SW 26 188729 E 09/09-18 54 6 71 28 W 14 22 3 1 SW51 8005 SW 28 191169 E 09/09-19 54 6 67 31 W 15 1 6931 SW 29 170273 E 09/09-20 54 6 64 33 W 17 1 5855 SW 30 149378 V 09/09-21 54 6 61 33 W 18 29 3 1 SW49 4780 SW 31 128483 V 09/09-22 54 6 60 33 W 18 1 3682 SW 32 101156 V 09/09-23 54 6 58 34 W 17 1 2584 W 35 73828 G 09/10-00 45 1 55 36 W 17 28 4 1 SW47 1486 W 36 46499 F 09/10-01 45 1 53 39 W 18 1 1191 W 36 36823 P 09/10-02 45 1 51 41 W 18 1 897 W 35 27147 P 09/10-03 45 1 50 44 W 20 32 4 1 SW59 602 W 33 17471 P 09/10-04 45 1 50 45 W 20 1 811 W 37 26331 P 09/10-05 45 1 49 47 W 20 1 1020 W 39 35190 P 09/10-06 45 1 49 48 W 20 31 4 1 SW44 1229 W 41 44050 F 09/10-07 45 1 51 45 W 18 1 2486 W 38 76867 G 09/10-08 45 1 53 43 W 17 1 3743 W 36 109683 V 09/10-09 45 0 57 37 W 16 26 3 1 SW44 4999 W 33 142500 V 09/10-10 45 0 61 32 W 15 1 6543 W 35 199874 E 09/10-11 45 0 63 29 W 15 1 8086 W 37 257248 E 09/10-12 37 0 64 27 W 14 22 2 1 SW60 9630 W 38 314622 E 09/10-13 37 0 65 25 W 15 1 10836 W 39 363701 E 09/10-14 37 0 66 25 W 15 1 12041 W 39 412780 E 09/10-15 37 0 67 24 W 16 25 2 1 W51 13246 W 40 461860 E 09/10-16 37 0 67 25 W 16 1 12124 W 39 408975 E 09/10-17 37 0 65 26 W 15 1 11002 W 37 356091 E 09/10-18 37 0 65 27 W 13 21 2 1 W28 9879 W 36 303206 E 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/ENTREKIN REQUESTED BY...RUSSELL DAWDY REASON FOR REQUEST...WILDFIRE .TAG 20100907.FOURM.02/BOU