FNUS75 KBOU 181744 FWSBOU SPOT FORECAST FOR EVERGREEN5A...USFS NATIONAL WEATHER SERVICE DENVER CO 1039 AM MST THU FEB 18 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS THE REGION THROUGH TONIGHT WITH SNOW DEVELOPING LATER THIS AFTERNOON AND CONTINUING THROUGH MIDNIGHT. SNOW WILL DIMINISH LATE TONIGHT WITH SNOW ACCUMULATIONS OF 3 TO 5 INCHES ARE POSSIBLE BY FRIDAY MORNING. THERE WILL BE ENOUGH INSTABILITY FOR SMOKE DISPERSAL TO BECOME FAIR FOR THE AFTERNOON. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1500...THEN CHANCE OF SNOW UNTIL 1700...THEN SNOW. MAX TEMPERATURE.....34. MIN HUMIDITY........60-65%. WIND (20 FT)........WEST 2-5 MPH UNTIL 1500...THEN NORTHEAST 5-10 MPH. TRANSPORT WINDS.....WEST 9-16 MPH. MIXING HEIGHT.......4000-5000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1200...THEN FAIR UNTIL 1600...THEN POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........CLOUDY. SNOW UNTIL 0200...THEN CHANCE OF SNOW UNTIL 0500...THEN SLIGHT CHANCE OF SNOW. MIN TEMPERATURE.....17. MAX HUMIDITY........73%. WIND (20 FT)........NORTH 6-11 MPH UNTIL 2400...THEN EAST UP TO 4 MPH UNTIL 0300...THEN SOUTHWEST 5-6 MPH. TRANSPORT WINDS.....NORTHWEST 4-8 MPH. MIXING HEIGHT.......1200-2200 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FRIDAY... SKY/WEATHER.........CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1700...THEN CHANCE OF SNOW. MAX TEMPERATURE.....32. MIN HUMIDITY........51%. WIND (20 FT)........SOUTHWEST 5-9 MPH. TRANSPORT WINDS.....WEST 8-16 MPH. MIXING HEIGHT.......2000-3000 FT AGL UNTIL 1100...THEN 3200-4200 FT AGL UNTIL 1700...THEN 1400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1100...THEN GOOD UNTIL 1500...THEN FAIR UNTIL 1600...THEN POOR. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...CLOUDY. CHANCE OF SNOW. LOWS AROUND 13. HIGHS IN THE UPPER 20S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 0600...THEN SLIGHT CHANCE OF SNOW. LOWS AROUND 13. HIGHS IN THE UPPER 20S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS AROUND 16. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR EVERGREEN5A. +++ 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 02/18-10 79 20 28 45 W 5 1 2990 W 10 27201 P 02/18-11 77 50 30 49 W 5 5 3 1 W36 4065 W 10 37639 P 02/18-12 77 50 32 47 W 5 1 4543 W 12 45358 F 02/18-13 77 50 32 46 W 6 1 5021 W 12 53076 F 02/18-14 77 50 33 46 W 6 6 3 1 W33 5499 W 13 60795 G 02/18-15 77 50 32 47 NW 5 1 4901 W 12 51411 F 02/18-16 77 50 31 50 NE 3 1 4304 NW 12 42028 F 02/18-17 98 80 29 58 N 5 5 3 1 W31 3706 NW 10 32644 P 02/18-18 98 80 27 61 N 5 1 3098 NW 9 26077 P 02/18-19 98 80 25 65 NW 5 1 2489 NW 9 19509 P 02/18-20 98 80 24 68 NW 5 5 3 1 W36 1881 NW 8 12942 P 02/18-21 98 80 22 71 N 5 1 1784 NW 7 10501 P 02/18-22 98 80 21 73 NE 3 1 1687 NW 6 8061 P 02/18-23 96 75 20 73 E 3 3 3 1 W39 1590 NW 5 5621 P 02/19-00 96 75 19 72 E 2 1 1399 NW 3 4872 P 02/19-01 96 75 18 69 CALM 1 1208 NW 3 4123 P 02/19-02 96 50 18 66 CALM 1 3 1 W35 1017 W 3 3374 P 02/19-03 96 50 18 63 SE 2 1 1026 W 5 4596 P 02/19-04 96 50 18 61 SW 3 1 1034 W 7 5818 P 02/19-05 88 23 17 61 W 5 5 2 1 W28 1301 W 7 8281 P 02/19-06 88 23 17 64 W 5 1 1242 W 7 7643 P 02/19-07 88 23 17 70 SW 5 1 1183 W 7 7004 P 02/19-08 88 23 19 72 SW 3 8 2 1 W23 1123 W 7 6366 P 02/19-09 88 23 24 63 SW 3 1 2351 W 9 25702 P 02/19-10 88 23 27 60 SW 3 1 3580 W 13 45039 F 02/19-11 82 23 30 57 SW 3 3 2 1 W25 4808 W 15 64375 G 02/19-12 82 23 31 56 SW 3 1 4784 W 16 66855 G 02/19-13 82 23 32 53 SW 3 1 4760 W 17 69335 G 02/19-14 82 23 32 51 SW 5 6 2 1 W44 4736 W 17 71815 G 02/19-15 82 23 30 54 SW 6 1 3640 W 15 52508 F 02/19-16 82 23 29 53 SW 7 1 2544 SW 13 33200 P 02/19-17 95 28 25 58 SW 8 8 2 1 W52 1447 SW 12 13893 P 02/19-18 95 28 22 68 SW 8 1 1068 SW 10 10048 P 02/19-19 95 28 20 76 SW 8 1 689 SW 9 6204 P 02/19-20 95 28 19 81 SW 8 8 3 1 W56 309 SW 9 2360 P 02/19-21 95 28 18 84 SW 7 1 294 SW 8 2176 P 02/19-22 95 28 17 86 SW 6 1 279 SW 8 1992 P 02/19-23 97 28 17 87 SW 6 6 3 1 W45 264 SW 8 1807 P 02/20-00 97 28 17 86 SW 7 1 228 SW 8 1651 P 02/20-01 97 28 16 86 SW 8 1 191 W 9 1494 P 02/20-02 97 28 15 89 W 9 16 3 1 W40 154 W 10 1338 P 02/20-03 97 28 15 90 W 10 1 142 W 10 1314 P 02/20-04 97 28 14 92 W 12 1 129 W 12 1291 P 02/20-05 80 28 15 91 W 12 20 3 1 W35 116 W 13 1267 P 02/20-06 80 28 15 96 W 12 1 125 W 13 1350 P 02/20-07 80 28 15 100 W 13 1 134 W 13 1433 P 02/20-08 80 28 16 98 SW 12 20 3 1 W38 142 SW 13 1516 P 02/20-09 80 28 20 80 SW 10 1 233 SW 10 1919 P 02/20-10 80 28 23 69 SW 8 1 323 SW 9 2321 P 02/20-11 80 42 25 61 SW 6 6 3 1 SW32 413 SW 8 2724 P 02/20-12 80 42 26 63 SW 5 1 681 SW 8 4595 P 02/20-13 80 42 27 65 S 5 1 949 SW 8 6467 P 02/20-14 80 42 27 68 S 5 5 3 1 W32 1217 SW 8 8339 P 02/20-15 80 42 25 76 S 5 1 963 SW 7 6400 P 02/20-16 80 42 25 78 SW 5 1 710 SW 7 4461 P 02/20-17 94 53 22 87 SW 5 5 3 1 SW21 456 SW 7 2523 P 02/20-18 94 53 19 95 SW 5 1 370 SW 7 2070 P 02/20-19 94 53 17 95 SW 6 1 283 SW 7 1617 P 02/20-20 94 53 16 95 SW 6 6 3 1 SW22 196 W 7 1164 P 02/20-21 94 53 15 94 W 6 1 179 W 7 1079 P 02/20-22 94 53 15 94 W 7 1 161 W 7 994 P 02/20-23 94 53 14 95 W 7 7 3 1 W29 144 W 7 910 P 02/21-00 94 53 14 95 W 7 1 137 W 8 897 P 02/21-01 94 53 14 96 W 8 1 131 W 8 885 P 02/21-02 94 53 13 100 W 8 8 3 1 W25 125 W 8 872 P 02/21-03 94 53 12 98 W 9 1 127 W 9 972 P 02/21-04 94 53 12 97 W 9 1 129 W 9 1072 P 02/21-05 80 24 13 93 W 10 17 3 1 W21 131 W 10 1172 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/ENTREKIN REQUESTED BY...BILL ALAKAI REASON FOR REQUEST...PRESCRIBED .TAG 20100218.EVERG.01/BOU