FNUS75 KBOU 181738 FWSBOU SPOT FORECAST FOR SUGARLOAF 121 123...USFS NATIONAL WEATHER SERVICE DENVER CO 1033 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 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. CHANCE OF SNOW UNTIL 1300...THEN SNOW LIKELY UNTIL 1700...THEN SNOW. MAX TEMPERATURE.....36. MIN HUMIDITY........60-65%. WIND (20 FT)........VARIABLE 4-8 MPH UNTIL 1500...THEN NORTHEAST 5-10 MPH. TRANSPORT WINDS.....WEST 9-16 MPH. MIXING HEIGHT.......4000-5000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1100...THEN FAIR UNTIL 1700...THEN POOR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........CLOUDY. SNOW UNTIL 0600...THEN CHANCE OF SNOW. MIN TEMPERATURE.....15. MAX HUMIDITY........92%. WIND (20 FT)........EAST 5-9 MPH UNTIL 0300...THEN SOUTH 6-7 MPH. TRANSPORT WINDS.....WEST 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. CHANCE OF SNOW. MAX TEMPERATURE.....28. MIN HUMIDITY........58%. WIND (20 FT)........SOUTH UP TO 4 MPH UNTIL 0900...THEN UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1500...THEN SOUTHWEST 5-6 MPH. TRANSPORT WINDS.....WEST 13-24 MPH. MIXING HEIGHT.......3400-4400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN GOOD UNTIL 1700...THEN FAIR. 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 10. HIGHS IN THE UPPER 20S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS AROUND 12. HIGHS IN THE MID 20S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS AROUND 14. HIGHS AROUND 30. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR SUGARLOAF 121 123. +++ 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 85 35 25 58 W 6 1 3038 W 12 30748 P 02/18-11 88 70 27 59 W 3 3 2 1 W30 4054 W 12 41546 F 02/18-12 88 70 28 58 W 3 1 4539 W 13 49185 F 02/18-13 88 70 29 58 W 3 1 5023 W 13 56824 F 02/18-14 88 70 29 59 W 3 3 3 1 W29 5508 W 14 64463 G 02/18-15 88 70 29 60 W 3 1 4844 W 13 53447 F 02/18-16 88 70 28 63 N 5 1 4179 W 12 42431 F 02/18-17 98 80 25 73 NE 5 5 3 1 W28 3515 NW 10 31415 P 02/18-18 98 80 24 77 NE 3 1 2960 NW 9 23994 P 02/18-19 98 80 22 81 NE 3 1 2405 NW 7 16572 P 02/18-20 98 80 21 85 E 3 3 3 1 W35 1850 NW 6 9151 P 02/18-21 98 80 20 89 E 5 1 1711 NW 5 7059 P 02/18-22 98 80 19 91 E 6 1 1572 NW 3 4967 P 02/18-23 98 75 18 92 E 6 6 2 1 W40 1433 NW 2 2875 P 02/19-00 98 75 17 91 E 7 1 1293 NW 2 2740 P 02/19-01 98 75 16 88 SE 7 1 1153 W 2 2606 P 02/19-02 98 50 16 85 SE 7 7 2 1 W35 1013 W 2 2471 P 02/19-03 98 50 16 82 SE 6 1 1034 W 5 4135 P 02/19-04 98 50 16 80 S 5 1 1055 W 6 5798 P 02/19-05 89 26 15 79 SW 3 3 2 1 W29 1570 W 9 12553 P 02/19-06 89 26 15 84 S 2 1 1734 W 10 15792 P 02/19-07 89 26 15 86 S 2 1 1899 W 12 19032 P 02/19-08 89 26 17 85 CALM 5 2 1 NW22 2063 W 13 22271 P 02/19-09 89 26 20 80 CALM 1 3037 W 15 41682 F 02/19-10 89 26 22 76 CALM 1 4012 W 16 61093 G 02/19-11 92 27 25 71 CALM 1 2 1 W22 4986 W 18 80504 G 02/19-12 92 27 27 66 CALM 1 5067 W 20 88353 G 02/19-13 92 27 27 64 CALM 1 5149 W 22 96202 G 02/19-14 92 27 28 61 CALM 2 2 1 W39 5231 W 23 104051 V 02/19-15 92 27 28 59 W 2 1 4438 W 21 83301 G 02/19-16 92 27 27 58 SW 3 1 3646 W 18 62550 G 02/19-17 95 34 24 63 SW 5 5 2 1 W52 2854 W 17 41799 F 02/19-18 95 34 20 80 SW 5 1 2014 W 14 28547 P 02/19-19 95 34 18 89 SW 5 1 1175 SW 10 15295 P 02/19-20 95 34 16 99 SW 3 3 2 1 W51 335 SW 7 2043 P 02/19-21 95 34 17 99 W 2 1 322 SW 6 1505 P 02/19-22 95 34 16 100 CALM 1 310 SW 3 967 P 02/19-23 97 34 16 100 CALM 1 2 1 W46 297 CALM 429 P 02/20-00 97 34 15 100 N 2 1 251 W 3 614 P 02/20-01 97 34 14 100 NW 3 1 205 W 6 799 P 02/20-02 97 34 13 100 W 5 5 2 1 W52 158 W 7 984 P 02/20-03 97 34 11 100 W 6 1 149 W 8 1000 P 02/20-04 97 34 11 100 W 7 1 139 W 8 1015 P 02/20-05 80 34 11 100 W 8 8 2 1 W47 129 W 9 1031 P 02/20-06 80 34 10 100 W 7 1 134 W 8 956 P 02/20-07 80 34 11 100 W 6 1 140 W 7 882 P 02/20-08 80 34 13 100 W 5 5 2 1 W41 145 W 7 807 P 02/20-09 80 34 17 100 W 5 1 281 W 8 2417 P 02/20-10 80 34 20 90 W 5 1 417 W 10 4027 P 02/20-11 80 45 24 79 W 5 5 2 1 SW35 553 W 12 5638 P 02/20-12 80 45 26 73 SW 3 1 1436 W 13 18120 P 02/20-13 80 45 27 74 SW 2 1 2320 W 14 30601 P 02/20-14 80 45 28 72 CALM 1 2 1 W32 3203 W 15 43083 F 02/20-15 80 45 28 72 CALM 1 2477 W 14 32001 P 02/20-16 80 45 27 74 CALM 1 1751 W 13 20918 P 02/20-17 94 52 24 82 W 2 2 2 1 W30 1025 W 12 9835 P 02/20-18 94 52 20 95 W 3 1 752 W 10 7046 P 02/20-19 94 52 19 97 W 5 1 478 W 9 4256 P 02/20-20 94 52 17 100 W 6 6 2 1 SW23 205 W 8 1466 P 02/20-21 94 52 18 95 W 6 1 215 W 7 1347 P 02/20-22 94 52 17 94 W 5 1 225 W 7 1229 P 02/20-23 94 52 17 95 W 3 3 2 1 W20 235 W 6 1110 P 02/21-00 94 52 16 97 W 3 1 221 W 6 1149 P 02/21-01 94 52 15 100 W 5 1 206 W 7 1187 P 02/21-02 94 52 14 100 W 6 6 2 1 W20 191 W 7 1226 P 02/21-03 94 52 13 100 W 7 1 188 W 8 1314 P 02/21-04 94 52 12 100 W 7 1 186 W 9 1402 P 02/21-05 80 26 12 100 W 8 8 2 1 NW21 183 W 9 1490 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...CHAD BUSER REASON FOR REQUEST...PRESCRIBED .TAG 20100218.SUGAR.01/BOU