FNUS75 KBOU 051558 FWSBOU SPOT FORECAST FOR ST LOUIS...USFS NATIONAL WEATHER SERVICE DENVER CO 900 AM MST THU NOV 5 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A DEEP MIXED LAYER IS EXPECTED DURING THE DAY THROUGH SATURDAY SO WOULD EXPECT THE WESTERLY FLOW TO MIX DOWN TO YOUR LOCATION THOUGH TIMING OF THIS IS SOMETIMES TRICKY IN THE MORNING. THERE SHOULD BE GOOD VENTILATION DURING THE DAY. GUSTY WEST WINDS THOUGH CAN BE EXPECTED AT TIMES DURING THE DAY...ESPECIALLY ON FRIDAY. A WEAK TROUGH PASSES ON SUNDAY WITH COOLER TEMPERATURES BUT IT IS VERY MOISTURE LIMITED THE WAY IT LOOKS NOW. CHANCE IN THE CURRENT FORECAST IS THE HIGHEST FOR SUNDAY...WOULD SAY 20 TO 30 PERCENT CHANCE OF SNOW SHOWERS WITH NOT MUCH IN THE WAY OF ACCUMULATION EXPECTED. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....58. MIN HUMIDITY........16%. 20-FOOT WINDS.......WEST 13-21 MPH WITH GUSTS TO AROUND 30 MPH. TRANSPORT WINDS.....WEST 20-28 MPH. MIXING HEIGHT.......1000-2000 FT AGL UNTIL 1000...THEN 5800-6800 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN GOOD UNTIL 1100...THEN VERY GOOD UNTIL 1300...THEN EXCELLENT UNTIL 1600...THEN VERY GOOD. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....37. MAX HUMIDITY........42%. 20-FOOT WINDS.......SOUTHWEST 8-12 MPH. TRANSPORT WINDS.....SOUTHWEST 13-24 MPH. MIXING HEIGHT.......3200-4200 FT AGL UNTIL 2000...THEN 600-1600 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2000. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1700...THEN PARTLY CLOUDY. MAX TEMPERATURE.....53. MIN HUMIDITY........27%. 20-FOOT WINDS.......WINDY. SOUTHWEST 12-16 MPH UNTIL 0900...THEN WEST 20-30 MPH WITH GUSTS TO AROUND 40 MPH. TRANSPORT WINDS.....WEST 32-40 MPH UNTIL 1200...THEN 44-52 MPH. MIXING HEIGHT.......1200-2200 FT AGL UNTIL 1000...THEN 5000-6000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1100. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S. SOUTHWEST WINDS AROUND 9 MPH. .SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS AFTER 0600 UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1800...THEN SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR ST LOUIS. +++ 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 11/05-08 22 0 45 23 SW 17 26 4 1 W29 965 SW 16 13599 P 11/05-09 22 0 47 22 W 17 1 2410 W 20 49377 F 11/05-10 22 0 50 19 W 18 1 3854 W 23 85155 G 11/05-11 24 0 53 17 W 18 28 3 1 W28 5299 W 26 120932 V 11/05-12 24 0 56 16 W 17 1 6137 W 26 142607 V 11/05-13 24 0 57 16 W 16 1 6976 W 26 164282 E 11/05-14 24 0 57 16 W 15 23 2 1 W30 7814 W 28 185957 E 11/05-15 24 0 57 17 W 15 1 7041 W 28 166067 E 11/05-16 24 0 55 18 W 15 1 6269 W 26 146177 V 11/05-17 16 0 53 20 W 14 21 2 1 W31 5496 W 26 126287 V 11/05-18 16 0 51 23 SW 12 1 4222 W 24 93173 G 11/05-19 16 0 47 27 SW 9 1 2947 SW 21 60060 G 11/05-20 16 0 45 30 SW 8 8 2 1 W38 1673 SW 18 26946 P 11/05-21 16 0 43 33 SW 8 1 1300 SW 18 20657 P 11/05-22 16 0 42 35 SW 8 1 928 SW 17 14368 P 11/05-23 16 0 41 37 SW 8 8 2 1 W46 555 SW 17 8079 P 11/06-00 16 0 40 39 SW 8 1 490 SW 17 7108 P 11/06-01 16 0 39 40 SW 9 1 424 SW 16 6137 P 11/06-02 16 0 39 40 SW 9 9 2 1 W58 359 SW 16 5165 P 11/06-03 16 0 38 41 SW 9 1 342 SW 16 4871 P 11/06-04 16 0 38 41 SW 9 1 325 W 16 4577 P 11/06-05 22 0 38 40 W 9 9 2 1 W53 308 W 16 4282 P 11/06-06 22 0 38 42 W 12 1 533 W 20 10306 P 11/06-07 22 0 39 41 SW 14 1 758 W 23 16329 P 11/06-08 22 0 41 40 SW 16 16 2 1 W63 983 W 26 22352 P 11/06-09 22 0 46 33 W 20 1 2518 W 35 99657 G 11/06-10 22 0 49 31 W 24 1 4053 W 44 176961 E 11/06-11 25 0 50 29 W 26 40 3 1 W67 5588 W 53 254266 E 11/06-12 25 0 51 28 W 28 1 5735 W 52 255722 E 11/06-13 25 0 52 28 W 28 1 5882 W 51 257178 E 11/06-14 25 0 52 27 W 26 40 4 1 W63 6029 W 49 258635 E 11/06-15 25 0 52 28 W 25 1 5852 W 47 242638 E 11/06-16 25 0 50 29 W 23 1 5674 W 46 226642 E 11/06-17 31 0 48 30 W 21 31 3 1 W73 5496 W 44 210645 E 11/06-18 31 0 46 34 W 18 1 5071 W 43 189210 E 11/06-19 31 0 44 36 W 17 1 4646 W 41 167774 E 11/06-20 31 0 43 40 W 15 15 2 1 W78 4221 W 40 146339 V 11/06-21 31 0 42 44 W 13 1 3866 W 37 126635 V 11/06-22 31 0 41 48 W 12 1 3510 W 35 106932 V 11/06-23 31 0 40 51 SW 10 10 2 1 W78 3154 W 32 87229 G 11/07-00 31 0 40 52 SW 9 1 2972 W 31 79356 G 11/07-01 31 0 39 54 SW 8 1 2789 W 29 71483 G 11/07-02 31 0 39 54 SW 8 8 2 1 W73 2606 W 28 63610 G 11/07-03 31 0 38 53 SW 8 1 2555 W 28 62008 G 11/07-04 31 0 38 52 W 8 1 2504 W 28 60405 G 11/07-05 36 0 38 51 W 8 8 2 1 W70 2453 W 28 58802 F 11/07-06 36 0 38 50 W 8 1 3349 W 30 88925 G 11/07-07 36 0 39 46 W 8 1 4245 W 31 119047 V 11/07-08 36 0 41 40 W 9 9 2 1 W64 5141 W 33 149170 V 11/07-09 36 0 45 35 W 10 1 5782 W 33 164623 E 11/07-10 36 0 47 32 W 13 1 6423 W 32 180077 E 11/07-11 36 0 49 30 W 14 14 2 1 W60 7064 W 32 195530 E 11/07-12 36 0 50 29 W 15 1 7129 W 32 196843 E 11/07-13 36 0 50 29 W 15 1 7193 W 32 198156 E 11/07-14 36 0 50 28 W 15 15 2 1 W58 7257 W 31 199469 E 11/07-15 36 0 50 29 W 13 1 6746 W 30 176567 E 11/07-16 36 0 49 30 W 9 1 6235 W 28 153665 E 11/07-17 39 0 46 34 W 7 7 2 1 W53 5723 W 26 130764 V 11/07-18 39 0 43 38 SW 6 1 5017 SW 24 107867 V 11/07-19 39 0 41 41 SW 5 1 4310 SW 22 84969 G 11/07-20 39 0 40 43 S 5 5 2 1 W47 3604 SW 20 62072 G 11/07-21 39 0 39 45 S 5 1 2941 SW 17 47181 F 11/07-22 39 0 38 46 S 5 1 2279 SW 15 32289 P 11/07-23 39 0 37 48 S 5 5 2 1 SW44 1617 SW 13 17397 P 11/08-00 39 0 37 49 S 5 1 1408 SW 12 14694 P 11/08-01 39 0 36 51 S 6 1 1199 SW 12 11991 P 11/08-02 39 0 36 52 S 6 6 2 1 SW47 990 SW 10 9288 P 11/08-03 39 0 35 54 S 6 1 801 SW 10 7316 P 11/08-04 39 0 35 55 S 6 1 613 SW 9 5343 P 11/08-05 56 10 35 61 S 6 6 2 1 SW54 424 SW 9 3370 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...PAUL MINTIER REASON FOR REQUEST...PRESCRIBED .TAG 20091106.STLOU.01/BOU