FNUS75 KBOU 082211 FWSBOU SPOT FORECAST FOR FOURMILE CANYON...USFS NATIONAL WEATHER SERVICE DENVER CO 357 PM MDT WED SEP 8 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT FROM 6 PM THURSDAY TO 6 PM MDT FRIDAY... .DISCUSSION...SCATTERED SHOWERS AND A FEW THUNDERSTORMS WILL BE MOVING ACROSS THE BURN AREA THROUGH 6 PM...THEN ACTIVITY WILL BE MORE ISOLATED THROUGH THE EVENING HOURS. EXPECT SOME HIGHER GUSTS BETWEEN 20 AND 30 MPH WITH THE PASSING SHOWERS. RAINFALL AMOUNTS WILL BE AROUND A TENTH OF AN INCH OR LESS WITH THE PASSING SHOWERS. THERE WILL BE A DRIER AIRMASS IN PLACE ON THURSDAY WITH NO SHOWERS EXPECTED OVER THE BURN. ...PLEASE NOTE FOR THURSDAY NIGHT THRU MIDDAY FRIDAY LATEST MODELS CONTINUE TO POINT TO INCREASING WESTERLY SURFACE WINDS OF 25 TO 35 MPH WITH GUSTS FROM 50 TO 60 MPH AT TIMES IN THE FIRE AREA WITH LOW HUMIDITIES...THIS HAS PROMPTED THE RED FLAG WARNING FOR THURSDAY NIGHT AND FRIDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND ISOLATED THUNDERSTORMS. MAX TEMPERATURE.....70-74...COOLING TO 60-65 AFTER 1700. MIN HUMIDITY........45-50%. 20-FOOT WINDS.......WINDS SHIFTING WESTERLY 8-12 MPH BEHIND THE SHOWERS THROUGH 1800. GUSTS TO 20 MPH. TRANSPORT WINDS.....SOUTHWEST AROUND 12 MPH. MIXING HEIGHT.......7200-8200 FT AGL. SMOKE DISPERSAL.....GOOD. HAINES INDEX........2 VERY LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400...THEN PARTLY CLOUDY(35-45%). CHANCE OF THUNDERSTORMS UNTIL 2100...THEN SLIGHT CHANCE OF THUNDERSTORMS UNTIL 2400. MIN TEMPERATURE.....51. MAX HUMIDITY........63%. 20-FOOT WINDS.......WEST WINDS 6-13 MPH. TRANSPORT WINDS.....WEST AROUND 12 MPH. MIXING HEIGHT.......6800 FT AGL UNTIL 1900. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2000. HAINES INDEX........2 VERY LOW. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%). MAX TEMPERATURE.....71-75. MIN HUMIDITY........26-30%. 20-FOOT WINDS.......WEST WINDS 8-12 MPH UNTIL 1200...THEN UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1500...THEN SOUTHWEST 8-12 MPH. TRANSPORT WINDS.....SOUTHWEST 16-24 MPH. MIXING HEIGHT.......7600-8600 FT AGL AFTER 1000. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN GOOD UNTIL 1100...THEN VERY GOOD. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. WEST WINDS AROUND 19 MPH WITH GUSTS TO 45 MPH. .SATURDAY...CLEAR. LOWS IN THE UPPER 30S. HIGHS AROUND 70. WEST WINDS AROUND 10 MPH WITH GUSTS TO 30 MPH. .SUNDAY...CLEAR. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S. 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 09/08-15 72 40 70 37 E 8 13 2 4 SW16 8161 SW 9 63797 G 09/08-16 72 40 70 38 SE 7 4 7672 SW 10 68647 G 09/08-17 72 40 69 39 S 6 4 7184 SW 13 73498 G 09/08-18 66 27 70 38 SW 5 5 2 4 SW20 6696 W 14 78347 G 09/08-19 66 27 67 42 SW 6 4 5168 W 13 58374 F 09/08-20 66 27 64 47 W 8 4 3639 W 12 38401 P 09/08-21 68 20 62 50 W 10 16 2 3 SW23 2111 W 10 18427 P 09/08-22 68 20 60 53 W 10 3 1534 W 10 13312 P 09/08-23 68 20 59 55 W 10 3 956 W 9 8197 P 09/09-00 42 8 56 59 W 9 14 2 1 SW32 379 W 9 3081 P 09/09-01 42 8 55 61 W 9 1 338 W 9 2794 P 09/09-02 42 8 53 62 W 8 1 297 W 10 2507 P 09/09-03 42 8 52 63 W 8 12 2 1 SW33 255 W 10 2220 P 09/09-04 42 8 52 61 W 7 1 310 W 12 3324 P 09/09-05 42 8 52 60 W 7 1 365 W 14 4428 P 09/09-06 42 4 52 59 W 7 7 2 1 SW18 420 W 15 5532 P 09/09-07 42 4 53 55 W 7 1 1341 W 15 17638 P 09/09-08 42 4 57 48 W 8 1 2262 W 15 29743 P 09/09-09 42 4 61 41 W 9 14 3 1 S28 3182 W 16 41849 F 09/09-10 42 4 65 36 W 9 1 4455 W 17 72711 G 09/09-11 42 4 67 33 SW 8 1 5729 SW 20 103573 V 09/09-12 50 1 69 31 S 7 7 2 1 S33 7002 SW 23 134435 V 09/09-13 50 1 71 29 S 7 1 7725 SW 22 139537 V 09/09-14 50 1 71 28 S 7 1 8447 SW 21 144640 V 09/09-15 50 1 72 28 S 8 10 2 1 SW35 9169 SW 20 149742 V 09/09-16 50 1 72 28 S 9 1 8365 SW 20 135312 V 09/09-17 50 1 71 30 SW 12 1 7560 SW 18 120881 V 09/09-18 40 3 68 32 SW 14 22 2 1 SW43 6755 SW 18 106451 V 09/09-19 40 3 63 36 W 16 1 5084 SW 22 85615 G 09/09-20 40 3 60 39 W 18 1 3413 W 25 64779 G 09/09-21 40 3 57 39 W 21 33 2 1 SW38 1742 W 29 43943 F 09/09-22 40 3 55 39 W 23 1 1358 W 32 35554 P 09/09-23 40 3 53 39 W 24 1 974 W 35 27170 P 09/10-00 25 0 52 38 W 24 39 4 1 SW43 589 W 37 18786 P 09/10-01 25 0 51 38 W 24 1 687 W 38 22739 P 09/10-02 25 0 50 38 W 23 1 786 W 39 26692 P 09/10-03 25 0 49 38 W 22 36 3 1 SW62 884 W 40 30645 P 09/10-04 25 0 49 37 W 23 1 1163 W 41 42459 F 09/10-05 25 0 50 36 W 23 1 1442 W 43 54273 F 09/10-06 19 0 49 37 W 23 37 3 1 SW58 1721 W 45 66086 G 09/10-07 19 0 49 36 W 22 1 3241 W 46 135148 V 09/10-08 19 0 53 31 W 21 1 4759 W 48 204209 E 09/10-09 19 0 57 26 W 18 30 3 1 SW51 6279 W 51 273272 E 09/10-10 19 0 59 25 W 18 1 6760 W 47 270419 E 09/10-11 19 0 60 24 W 18 1 7241 W 43 267566 E 09/10-12 18 0 62 23 W 18 30 2 1 W31 7723 W 39 264714 E 09/10-13 18 0 63 23 W 20 1 8220 W 36 247615 E 09/10-14 18 0 66 21 W 22 1 8718 W 31 230516 E 09/10-15 18 0 67 21 W 22 35 2 1 W23 9214 W 28 213417 E 09/10-16 18 0 67 20 W 20 1 8832 W 29 214533 E 09/10-17 18 0 66 20 W 17 1 8450 W 30 215649 E 09/10-18 18 0 62 23 W 15 24 2 1 W33 8068 W 31 216765 E 09/10-19 18 0 56 28 W 14 1 6444 W 30 171676 E 09/10-20 18 0 52 33 W 14 1 4820 W 30 126587 V 09/10-21 18 0 49 38 W 14 18 2 1 W36 3196 W 30 81498 G 09/10-22 18 0 46 43 W 14 1 2306 W 28 57906 F 09/10-23 18 0 44 48 W 15 1 1416 W 25 34314 P 09/11-00 4 0 43 51 W 16 25 3 1 W24 527 W 23 10722 P 09/11-01 4 0 41 55 W 16 1 443 W 22 8706 P 09/11-02 4 0 40 56 W 16 1 360 W 21 6692 P 09/11-03 4 0 39 57 W 16 25 3 1 W26 277 W 20 4676 P 09/11-04 4 0 39 55 W 15 1 278 W 18 4315 P 09/11-05 4 0 40 54 W 15 1 279 W 16 3954 P 09/11-06 4 0 39 56 W 14 17 3 1 W25 280 W 15 3593 P 09/11-07 4 0 39 57 W 12 1 1851 W 17 33764 P 09/11-08 4 0 46 46 W 9 1 3423 W 20 63935 G 09/11-09 4 0 53 35 SW 8 8 3 1 W30 4995 W 22 94106 G 09/11-10 4 0 56 32 SW 8 1 5869 W 22 114382 V 09/11-11 4 0 58 29 SW 8 1 6744 W 23 134658 V 09/11-12 7 0 61 26 SW 9 9 3 1 NW30 7619 W 23 154934 E 09/11-13 7 0 63 23 W 8 1 8372 W 22 155603 E 09/11-14 7 0 68 18 W 8 1 9126 W 20 156272 E 09/11-15 7 0 69 17 NW 7 7 2 1 NW31 9878 W 18 156941 E 09/11-16 7 0 70 17 NW 7 1 9309 W 17 137871 V 09/11-17 7 0 69 19 NW 6 1 8741 W 16 118802 V 09/11-18 7 0 65 23 W 6 6 3 1 NW24 8171 W 14 99732 G 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 20100908.FOURM.02/BOU