FNUS75 KBOU 271809 FWSBOU SPOT FORECAST FOR SECTION 5 6 11...USFWS NATIONAL WEATHER SERVICE DENVER CO 1209 PM MDT TUE SEP 27 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER RIDGE EXTENDING OVER COLORADO FROM THE WEST WILL KEEP NORTH TO NORTHWESTERLY FLOW ALOFT WITH A WARM AND DRY AIRMASS. TEMPERATURES WEDNESDAY WILL BE ABOUT 5 DEGREES WARMER WITH HUMIDITIES DOWN INTO THE LOW TEENS. THE RIDGING WILL LIMIT SMOKE DISPERSION SLIGHTLY. SURFACE HIGH PRESSURE WILL KEEP WINDS LIGHT. A COLD FRONT IS EXPECTED TO MOVE SOUTH ACROSS THE PLAINS AFTER MIDNIGHT AND INTO THURSDAY MORNING BRINGING COOLER TEMPERATURES AND HIGHER HUMIDITIES. MAX TEMPS SHOULD BE AROUND 20 DEGREES COOLER AND MINIMUM HUMIDITIES AROUND 20% HIGHER THURSDAY. COLD FRONT IS EXPECTED TO PRODUCE A VERY STABLE AIRMASS FOR THURSDAY WITH NO MIXING UNDER AN INVERSION. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........PARTLY CLOUDY. MAX TEMPERATURE.....82. MIN HUMIDITY........17%. 20-FOOT WINDS.......NORTHEAST WINDS 5-6 MPH. TRANSPORT WINDS.....NORTHWEST 4-8 MPH. MIXING HEIGHT.......9200 FT AGL UNTIL 1200...THEN 12400-13400 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 1200...THEN GOOD UNTIL 1700...THEN FAIR. HAINES INDEX........5 MODERATE. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....55. MAX HUMIDITY........48%. 20-FOOT WINDS.......EAST WINDS AROUND 5 MPH UNTIL 2100...THEN SOUTHWEST 6-7 MPH. TRANSPORT WINDS.....SOUTHEAST AROUND 4 MPH UNTIL 2400...THEN SOUTHWEST. MIXING HEIGHT.......8200 FT AGL UNTIL 1900. BELOW 1000 FT AGL AFTER 2100. SMOKE DISPERSAL.....POOR. HAINES INDEX........5 MODERATE. .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....87. MIN HUMIDITY........13%. 20-FOOT WINDS.......SOUTHWEST WINDS 6-7 MPH UNTIL 1200...THEN NORTH AROUND 5 MPH. TRANSPORT WINDS.....SOUTHWEST AROUND 8 MPH UNTIL 1200...THEN NORTHWEST 4-8 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000. 11200-12200 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1100. GOOD AFTER 1300. HAINES INDEX........5 MODERATE. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...PARTLY CLOUDY. COOLER. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND 7 MPH. .FRIDAY...MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S. SOUTHEAST WINDS AROUND 5 MPH. .SATURDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 80S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. FIRE WEATHER TABLE FOR SECTION5 6 11. +++ 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 09/27-11 29 0 0 76 26 E 6 6 5 1 W12 9121 W 7 57846 F 09/27-12 30 0 0 78 23 NE 6 6 5 1 W10 13228 NW 7 84871 G 09/27-13 32 0 0 80 20 NE 6 6 5 1 W12 13465 NW 7 85039 G 09/27-14 34 3 1 82 18 N 5 5 5 1 W14 13702 NW 7 85207 G 09/27-15 35 3 1 82 17 N 5 5 5 1 NW15 13939 NW 7 85375 G 09/27-16 35 3 1 82 17 N 5 5 5 1 NW16 12891 NW 7 72368 G 09/27-17 35 3 1 82 18 NE 6 6 4 1 NW16 11843 NW 6 59360 F 09/27-18 29 3 1 79 21 NE 3 3 5 1 NW20 8170 N 5 29531 P 09/27-19 29 3 1 76 24 E 3 3 5 1 NW20 5514 NE 5 19956 P 09/27-20 29 0 0 72 27 SE 5 5 4 1 NW20 2858 SE 5 10381 P 09/27-21 20 0 0 71 28 S 5 5 4 1 NW18 202 S 5 806 P 09/27-22 20 0 0 68 31 S 5 5 4 1 NW17 186 S 5 821 P 09/27-23 20 0 0 66 34 S 6 6 4 1 N16 171 S 6 835 P 09/28-00 2 0 0 64 36 S 6 6 4 1 N15 155 SW 6 850 P 09/28-01 2 0 0 62 40 SW 6 6 4 1 N14 153 SW 6 785 P 09/28-02 2 0 0 60 43 SW 6 6 3 1 NW13 152 SW 6 720 P 09/28-03 2 0 0 58 46 SW 6 6 3 1 NW13 150 SW 5 655 P 09/28-04 2 0 0 56 48 SW 6 6 3 1 NW14 144 SW 6 691 P 09/28-05 2 0 0 55 47 SW 7 7 4 1 NW15 137 SW 6 727 P 09/28-06 6 0 0 55 45 SW 7 7 4 1 NW16 131 SW 7 764 P 09/28-07 6 0 0 55 46 SW 7 7 4 1 NW16 194 SW 7 1182 P 09/28-08 6 0 0 59 40 SW 7 7 4 1 NW15 258 SW 7 1601 P 09/28-09 6 0 0 66 32 SW 7 7 4 1 NW14 321 SW 7 2019 P 09/28-10 6 0 0 73 24 W 6 6 4 1 NW13 3517 W 7 18878 P 09/28-11 6 0 0 79 19 W 6 6 4 1 NW12 6713 NW 7 35737 P 09/28-12 23 0 0 82 16 NW 5 5 4 1 NW10 9908 NW 6 52596 F 09/28-13 23 0 0 85 14 NW 5 5 4 1 NW10 10805 NW 7 62600 G 09/28-14 23 0 0 87 13 NW 5 5 4 1 NW12 11701 NW 7 72604 G 09/28-15 23 0 0 87 13 NW 5 5 4 1 NW13 12598 NW 8 82609 G 09/28-16 23 0 0 87 13 N 3 3 4 1 NW14 12376 NW 7 77909 G 09/28-17 23 0 0 87 13 NE 2 2 5 1 NW16 12154 NW 7 73209 G 09/28-18 34 0 0 83 16 CALM 1 4 1 NW17 11377 NW 8 78809 G 09/28-19 34 0 0 79 19 SE 2 2 4 1 NW17 7648 NW 7 52796 F 09/28-20 34 0 0 74 23 S 3 3 5 1 N16 3920 W 6 26784 P 09/28-21 34 0 0 72 26 SW 5 5 5 1 N14 192 SW 5 772 P 09/28-22 34 0 0 68 31 W 6 6 5 1 N12 191 W 6 968 P 09/28-23 34 0 0 65 34 W 7 7 5 1 NW 9 190 NW 7 1164 P 09/29-00 30 0 0 63 38 NW 7 7 5 1 NW 8 190 NW 8 1360 P 09/29-01 30 0 0 60 41 NW 7 7 4 1 NW 7 190 NW 8 1418 P 09/29-02 30 0 0 57 47 NW 7 7 4 1 NW 8 191 N 9 1477 P 09/29-03 30 0 0 56 49 NW 7 7 3 1 W 8 192 N 9 1536 P 09/29-04 30 0 0 52 57 NW 7 7 3 1 W 8 194 N 9 1558 P 09/29-05 30 0 0 51 61 NW 7 7 2 1 W 7 196 N 9 1579 P 09/29-06 23 3 1 49 66 NW 7 7 2 1 W 7 198 N 9 1601 P 09/29-07 23 3 1 49 67 N 9 9 2 1 W 7 1304 N10 13997 P 09/29-08 23 3 1 52 59 N10 16 2 1 W 8 2410 N12 26392 P 09/29-09 23 3 1 56 51 N12 17 2 1 W 9 3515 NE13 38787 P 09/29-10 23 3 1 60 43 N10 15 2 1 W12 4084 N 9 29372 P 09/29-11 23 3 1 64 38 NE 8 8 2 1 W15 4652 N 6 19957 P 09/29-12 28 3 1 66 36 NE 6 6 2 1 W17 5221 N 2 10542 P 09/29-13 28 3 1 67 33 NE 6 6 2 1 W18 5230 NE 2 9759 P 09/29-14 28 3 1 68 31 E 6 6 2 1 W18 5239 E 2 8976 P 09/29-15 28 3 1 68 31 E 7 7 2 1 W18 5248 E 2 8193 P 09/29-16 28 3 1 68 31 E 7 7 2 1 W18 5314 E 2 12819 P 09/29-17 28 3 1 68 31 E 7 7 2 1 W18 5379 SE 3 17445 P 09/29-18 26 3 1 66 34 E 7 7 2 1 NW17 5444 SE 5 22071 P 09/29-19 26 3 1 64 38 E 7 7 2 1 NW16 3759 SE 7 15905 P 09/29-20 26 3 1 61 42 E 7 7 2 1 NW14 2074 SE 8 9739 P 09/29-21 26 3 1 59 44 E 7 7 2 1 NW14 389 E10 3573 P 09/29-22 26 3 1 57 47 SE 7 7 2 1 W13 347 SE10 3058 P 09/29-23 26 3 1 56 48 SE 6 6 2 1 W13 305 SE 9 2543 P 09/30-00 9 3 1 54 49 SE 6 6 2 1 W14 263 S 9 2028 P 09/30-01 9 3 1 53 51 S 6 6 2 1 W15 256 S 8 1897 P 09/30-02 9 3 1 51 55 S 6 6 2 1 W15 248 S 8 1767 P 09/30-03 9 3 1 50 56 S 6 6 2 1 W16 241 S 8 1637 P 09/30-04 9 3 1 48 59 S 6 6 2 1 W17 230 S 7 1421 P 09/30-05 9 3 1 47 61 SW 6 6 3 1 NW18 220 SW 6 1205 P 09/30-06 6 3 1 46 64 SW 6 6 3 1 NW20 210 SW 6 989 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...JASON FALLON REASON FOR REQUEST...PRESCRIBED .TAG 20110928.SECTI.01/BOU