FNUS75 KBOU 201209 FWSBOU SPOT FORECAST FOR PORTER RANCH 5...USFS NATIONAL WEATHER SERVICE DENVER CO 509 AM MST SAT FEB 20 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN EASTERLY LOW LEVEL FLOW WILL CONTINUE TO TRANSPORT MOISTURE INTO THE AREA. LIGHT SNOW THIS MORNING WILL INCREASE IN INTENSITY THIS AFTERNOON. SNOW WILL CONTINUE THROUGH THE EVENING AND DECREASE AFTER MIDNIGHT. OCCASIONAL LIGHT SNOW IS EXPECT SUNDAY MORNING. THE NEXT SYSTEM MAY INCREASE THE SNOW SUNDAY AFTERNOON. BY SUNDAY MORNING 6 TO 10 INCHES OF SNOW IS EXPECTED. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........CLOUDY. SNOW. MAX TEMPERATURE.....19-23. MIN HUMIDITY........87-93%. WIND (20 FT)........EAST 6-12 MPH. TRANSPORT WINDS.....SOUTH 4-12 MPH. MIXING HEIGHT.......2400-3400 FT AGL. SMOKE DISPERSAL.....POOR. .TONIGHT... SKY/WEATHER.........CLOUDY. SNOW UNTIL 0500...THEN CHANCE OF SNOW. MIN TEMPERATURE.....9-13. MAX HUMIDITY........100%. WIND (20 FT)........VARIABLE 2-8 MPH. TRANSPORT WINDS.....SOUTHWEST UP TO 8 MPH. MIXING HEIGHT.......1800-2800 FT AGL. SMOKE DISPERSAL.....POOR. .SUNDAY... SKY/WEATHER.........CLOUDY. CHANCE OF SNOW UNTIL 1100...THEN SNOW LIKELY. MAX TEMPERATURE.....17-22. MIN HUMIDITY........77-84%. WIND (20 FT)........EAST 5 TO 10 MPH. TRANSPORT WINDS.....SOUTHWEST 4-12 MPH. MIXING HEIGHT.......3000-4000 FT AGL. SMOKE DISPERSAL.....POOR. EXPERIMENTAL FIRE WEATHER TABLE FOR PORTER RANCH 5. +++ 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 02/20-05 100 97 12 96 SE 6 6 2 1 SW44 494 SE 3 1677 P 02/20-06 100 97 12 99 SE 6 1 693 SE 5 2509 P 02/20-07 100 97 12 99 SE 6 1 893 SE 5 3342 P 02/20-08 100 97 15 97 SE 7 7 3 1 W48 1093 S 5 4174 P 02/20-09 100 97 18 90 SE 8 1 1598 S 7 10901 P 02/20-10 100 97 20 89 E 9 1 2104 S 8 17627 P 02/20-11 100 99 21 94 E 10 10 3 1 SW43 2609 S 10 24354 P 02/20-12 100 99 21 95 E 10 1 2790 S 12 26998 P 02/20-13 100 99 21 97 E 10 1 2972 S 12 29642 P 02/20-14 100 99 21 97 E 9 9 3 1 W46 3154 SW 12 32286 P 02/20-15 100 99 21 97 E 8 1 3211 S 10 27760 P 02/20-16 100 99 20 97 E 7 1 3268 S 8 23234 P 02/20-17 100 96 19 100 E 6 6 3 1 W36 3325 S 7 18707 P 02/20-18 100 96 16 100 E 6 1 2932 S 6 15837 P 02/20-19 100 96 15 100 E 6 1 2539 S 6 12967 P 02/20-20 100 96 14 100 SE 6 6 3 1 SW30 2146 S 6 10097 P 02/20-21 100 96 14 100 SE 6 1 2149 S 5 9526 P 02/20-22 100 96 14 100 E 6 1 2152 S 5 8955 P 02/20-23 100 93 14 100 E 6 6 3 1 SW21 2155 S 5 8384 P 02/21-00 100 93 13 100 E 6 1 2029 S 5 7211 P 02/21-01 100 93 13 100 SE 5 1 1903 SW 3 6038 P 02/21-02 100 93 13 100 SE 5 5 3 1 SW26 1777 SW 3 4865 P 02/21-03 100 93 12 98 SE 5 1 1763 SW 3 5509 P 02/21-04 100 93 12 94 E 5 1 1749 SW 5 6154 P 02/21-05 77 48 12 91 E 5 5 3 1 W43 1554 CALM 1085 P 02/21-06 77 48 12 90 E 2 1 1687 SW 3 4871 P 02/21-07 77 48 13 91 SE 2 1 1819 W 5 8658 P 02/21-08 77 48 14 90 SE 2 2 3 1 W36 1951 W 7 12445 P 02/21-09 77 48 15 88 SE 5 1 2406 W 7 15150 P 02/21-10 77 48 16 87 E 7 1 2860 SW 7 17855 P 02/21-11 92 66 18 86 E 8 8 3 1 W26 3314 SW 7 20560 P 02/21-12 92 66 18 84 E 7 1 3637 SW 8 24639 P 02/21-13 92 66 19 82 E 6 1 3959 SW 8 28718 P 02/21-14 92 66 19 81 E 5 5 3 1 W31 4282 S 9 32797 P 02/21-15 92 66 19 81 E 5 1 4007 SW 10 34326 P 02/21-16 92 66 18 82 E 5 1 3731 SW 12 35855 P 02/21-17 92 55 17 85 E 5 5 3 1 W46 3456 SW 13 37384 P 02/21-18 92 55 16 86 E 5 1 3033 SW 13 32697 P 02/21-19 92 55 15 86 E 3 1 2609 SW 13 28010 P 02/21-20 92 55 14 87 SE 3 3 3 1 W41 2186 W 13 23323 P 02/21-21 92 44 13 88 SE 3 1 2092 W 12 21232 P 02/21-22 92 44 12 87 SE 3 1 1999 W 12 19140 P 02/21-23 90 44 12 87 SE 3 3 3 1 W38 1906 W 10 17049 P 02/22-00 90 44 11 86 S 5 1 1498 W 13 15043 P 02/22-01 90 44 11 85 NW 8 1 1090 W 16 13038 P 02/22-02 90 44 10 84 W 12 12 3 1 W44 682 W 18 11033 P 02/22-03 90 44 10 83 W 10 1 816 W 20 14221 P 02/22-04 90 44 10 82 W 12 1 950 W 21 17409 P 02/22-05 76 33 10 81 W 13 13 2 1 NW33 1084 W 22 20597 P 02/22-06 76 33 10 82 W 12 1 1546 W 20 24637 P 02/22-07 76 33 11 81 W 10 1 2009 NW 17 28677 P 02/22-08 76 33 13 79 W 12 12 2 1 W43 2471 NW 15 32716 P 02/22-09 76 33 14 76 W 10 1 3290 NW 15 43009 F 02/22-10 76 33 16 73 W 9 1 4109 NW 15 53302 F 02/22-11 66 18 18 71 W 9 9 2 1 W37 4928 NW 15 63594 G 02/22-12 66 18 19 69 W 9 1 5016 NW 14 61774 G 02/22-13 66 18 20 67 W 9 1 5104 NW 14 59953 F 02/22-14 66 18 20 66 W 9 9 2 1 W29 5192 NW 13 58132 F 02/22-15 66 18 20 65 W 10 1 5138 NW 14 59182 F 02/22-16 66 18 19 66 W 10 1 5084 NW 14 60231 G 02/22-17 55 0 18 68 W 12 12 2 1 NW20 5029 NW 14 61281 G 02/22-18 55 0 18 70 W 13 1 4451 NW 14 55005 F 02/22-19 55 0 17 73 W 10 1 3873 NW 15 48730 F 02/22-20 55 0 16 76 W 10 10 2 1 N21 3295 NW 15 42454 F 02/22-21 55 0 15 77 W 10 1 2794 NW 14 33795 P 02/22-22 55 0 15 76 W 10 1 2293 NW 12 25135 P 02/22-23 45 0 14 75 W 10 10 2 1 N20 1792 NW 10 16476 P 02/23-00 45 0 14 74 W 10 1 1627 NW 10 14329 P 02/23-01 45 0 13 72 W 10 1 1462 NW 9 12183 P 02/23-02 45 0 13 70 W 10 10 2 1 N21 1298 NW 9 10036 P 02/23-03 45 0 13 69 W 10 1 1222 NW 9 10153 P 02/23-04 45 0 13 68 W 12 1 1146 NW 10 10269 P 02/23-05 30 0 13 66 W 12 12 2 1 N24 1071 NW 12 10386 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...CHAD BUSER REASON FOR REQUEST...PRESCRIBED .TAG 20100220.PORTE.01/BOU