FNUS75 KBOU 121241 FWSBOU SPOT FORECAST FOR HAYSTACK...BOULDER COUNTY NATIONAL WEATHER SERVICE DENVER CO 530 AM MST FRI MAR 12 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE WILL BE OVER THE AREA ON SATURDAY... RESULTING IN LIGHT WINDS. A SURFACE INVERSION SHOULD BREAK BY LATE MORNING...BUT WINDS IN THE LOWEST SEVERAL THOUSAND FEET WILL BE LIGHT. SMOKE DISPERSION WILL LIKELY REMAIN POOR IN THE AFTERNOON. DISPERSION SHOULD BE BETTER ON SUNDAY AFTERNOON THOUGH IT WILL BE COOLER WITH HIGHER HUMIDITIES. WINDS SUNDAY WILL BE NORTH TO NORTHEAST. SINCE THE SMOKE DISPERSION LOOKS MARGINAL AT BEST...ANOTHER FORECAST SHOULD BE REQUESTED LATER TODAY OR SATURDAY MORNING AS THE DETAILS OF THE FORECAST LOW LEVEL WINDS MAY CHANGE. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....53-57. MIN HUMIDITY........22-26%. WIND (20 FT)........SOUTHEAST 3-6 MPH INCREASING TO 4-10 MPH. TRANSPORT WINDS.....SOUTH 4-8 MPH. MIXING HEIGHT.......3000 FT AGL RISING TO 5000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN AFTER 0600 UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 40S. NORTH WINDS AROUND 9 MPH. .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .TUESDAY...MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN THE UPPER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR HAYSTACK. +++ 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 03/12-05 2 0 24 60 W 9 9 3 1 N37 175 W 12 1772 P 03/12-06 2 0 24 60 W 9 1 339 W 13 4060 P 03/12-07 2 0 27 55 W 12 1 504 NW 14 6348 P 03/12-08 2 0 32 49 W 10 10 4 1 N47 669 NW 15 8636 P 03/12-09 2 0 37 43 W 9 1 1942 NW 16 31376 P 03/12-10 2 0 42 38 W 9 1 3216 NW 18 54117 F 03/12-11 8 0 46 33 W 8 8 3 1 N46 4489 N 20 76857 G 03/12-12 8 0 49 29 NW 7 1 5626 N 18 88157 G 03/12-13 8 0 52 27 NW 7 1 6764 N 17 99456 G 03/12-14 8 0 53 25 NW 6 6 2 1 N40 7901 N 16 110756 V 03/12-15 8 0 52 25 N 5 1 6330 N 13 79523 G 03/12-16 8 0 51 26 NE 3 1 4758 N 9 48290 F 03/12-17 5 0 47 29 NE 3 3 2 1 N32 3187 N 6 17058 P 03/12-18 5 0 45 32 N 3 1 2240 NW 6 11709 P 03/12-19 5 0 41 38 W 3 1 1294 W 5 6360 P 03/12-20 5 0 36 46 W 3 3 2 1 N23 348 W 3 1011 P 03/12-21 5 0 33 53 W 5 1 284 W 3 911 P 03/12-22 5 0 31 60 W 6 1 220 W 5 811 P 03/12-23 5 0 30 67 W 6 6 3 1 NW15 156 SW 6 711 P 03/13-00 5 0 28 72 W 6 1 142 W 6 650 P 03/13-01 5 0 27 73 W 6 1 128 W 6 589 P 03/13-02 5 0 26 74 W 6 6 3 1 NW16 115 W 6 527 P 03/13-03 5 0 25 71 W 6 1 119 W 6 556 P 03/13-04 5 0 26 66 W 6 1 123 W 6 584 P 03/13-05 22 0 26 61 W 6 6 3 1 NW16 127 W 6 613 P 03/13-06 22 0 26 55 W 5 1 204 W 5 717 P 03/13-07 22 0 29 55 W 3 1 262 W 3 745 P 03/13-08 22 0 33 47 W 3 3 4 1 NW13 321 W 2 774 P 03/13-09 22 0 39 39 W 5 1 1137 W 3 4205 P 03/13-10 22 0 44 34 S 6 1 1954 SW 3 7637 P 03/13-11 29 0 48 30 SE 7 7 4 1 W 7 2771 SW 5 11069 P 03/13-12 29 0 52 26 SE 7 1 3427 SW 5 15969 P 03/13-13 29 0 54 25 SE 6 1 4083 SW 6 20869 P 03/13-14 29 0 55 24 SE 6 6 3 1 SW12 4739 SW 6 25770 P 03/13-15 29 0 55 24 E 6 1 4743 SW 6 21980 P 03/13-16 29 0 55 24 E 7 1 4746 S 5 18191 P 03/13-17 56 0 53 28 E 7 7 2 1 SW12 4750 S 3 14402 P 03/13-18 56 0 48 36 NE 7 1 3245 SW 3 9872 P 03/13-19 56 0 44 43 N 6 1 1740 W 3 5342 P 03/13-20 56 0 41 52 NW 6 6 3 1 SW 8 235 NW 3 812 P 03/13-21 56 0 40 57 NW 6 1 218 NW 5 839 P 03/13-22 56 0 38 62 NW 6 1 201 NW 5 867 P 03/13-23 56 0 37 67 NW 6 6 3 1 SE13 184 NW 6 894 P 03/14-00 56 0 35 71 NW 6 1 170 NW 6 874 P 03/14-01 56 0 34 74 W 7 1 156 NW 7 855 P 03/14-02 56 0 33 74 W 7 7 2 1 S18 142 W 7 835 P 03/14-03 56 0 32 76 W 6 1 148 NW 7 825 P 03/14-04 56 0 30 78 NW 6 1 154 NW 6 815 P 03/14-05 61 10 30 79 NW 5 5 2 1 SE15 160 N 6 805 P 03/14-06 61 10 29 85 NW 5 1 174 N 6 963 P 03/14-07 61 10 29 88 N 5 1 188 N 7 1122 P 03/14-08 61 10 32 80 N 6 6 2 1 S13 202 N 7 1280 P 03/14-09 61 10 36 72 N 8 1 1164 N 8 9434 P 03/14-10 61 10 40 65 N 10 1 2126 N 9 17588 P 03/14-11 61 10 43 59 N 12 12 2 1 S20 3088 NE 9 25742 P 03/14-12 61 10 46 52 N 13 1 3684 NE 10 35687 P 03/14-13 61 10 47 50 NE 12 1 4279 NE 12 45633 F 03/14-14 61 10 48 47 NE 12 12 2 1 SE24 4875 NE 13 55578 F 03/14-15 61 10 48 46 N 10 1 4804 NE 14 57641 F 03/14-16 61 10 48 45 N 10 1 4733 E 15 59705 F 03/14-17 61 10 47 46 N 9 9 2 1 SE21 4662 E 15 61768 G 03/14-18 61 10 43 54 N 9 1 3707 E 15 49393 F 03/14-19 61 10 41 60 N 10 1 2753 NE 16 37017 P 03/14-20 61 10 38 67 N 10 10 2 1 SE23 1799 NE 16 24641 P 03/14-21 61 10 37 71 N 10 1 1623 NE 16 22380 P 03/14-22 61 10 36 74 N 10 1 1447 NE 16 20119 P 03/14-23 61 10 35 77 N 10 10 2 1 SE22 1271 NE 16 17858 P 03/15-00 61 10 34 76 N 9 1 1066 NE 14 13785 P 03/15-01 61 10 33 74 N 8 1 861 NE 12 9713 P 03/15-02 61 10 32 72 N 7 7 2 1 S21 656 NE 10 5640 P 03/15-03 61 10 31 69 N 6 1 577 NE 7 4044 P 03/15-04 61 10 30 68 N 3 1 498 NE 5 2448 P 03/15-05 55 7 30 67 NW 2 2 2 1 S12 420 NE 2 853 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...GIMMESTAD REQUESTED BY...BOULDER COUNTY SHERIFF S OFFICE REASON FOR REQUEST...PRESCRIBED .TAG 20100313.HAYST.01/BOU