FNUS75 KBOU 031958 FWSBOU SPOT FORECAST FOR GRAND COUNTY...COUNTY NATIONAL WEATHER SERVICE DENVER CO 146 PM MDT SUN OCT 3 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A RIDGE OF HIGH PRESSURE WILL KEEP WARM AND MAINLY DRY CONDITIONS IN PLACE THROUGH TUESDAY. FOR THE REST OF THIS AFTERNOON...LOOK FOR UNSEASONABLY WARM TEMPERATURES AND LOW HUMIDITIES. THERE ARE SOME CUMULUS BUILDUPS IN THE AREA...BUT NO PRECIPITATION IS EXPECTED FROM THESE. WINDS WILL REMAIN FROM A WEST TO NORTHWEST DIRECTION WITH GUSTS UP TO 15 MPH...ESPECIALLY ON NORTHWEST AND WEST FACING SLOPES. ON EAST AND SOUTH FACING SLOPES...WINDS MAY BE MORE VARIABLE BUT GENERALLY LESS THAN 10 MPH. CLEAR SKIES ARE EXPECTED THIS EVENING WITH WINDS TURNING TO NORMAL DOWNSLOPE/DOWNVALLEY AT LESS THAN 10 MPH. MONDAY WILL FEATURE WEATHER CONDITIONS QUITE SIMILAR TO TODAYS... WITH JUST A SLIGHT CHANCE OF AN AFTERNOON SHOWER OR THUNDERSTORM. LITTLE CHANGE IN THE WEATHER PATTERN IS EXPECTED THROUGH THE REST OF THE WEEK...WITH ONLY SOME SLIGHT COOLING POSSIBLE. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1500...THEN PARTLY CLOUDY(40-50%). MAX TEMPERATURE.....64. MIN HUMIDITY........18%. 20-FOOT WINDS.......NORTHWEST WINDS 6-10 MPH. GUSTS UP TO 15 MPH ON NORTH AND WEST FACING SLOPES. TRANSPORT WINDS.....NORTHWEST AROUND 4 MPH. MIXING HEIGHT.......10400-11400 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 1500...THEN POOR. HAINES INDEX........4 LOW. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(40-50%). MIN TEMPERATURE.....42. MAX HUMIDITY........37%. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-10 MPH. TRANSPORT WINDS.....SOUTHWEST 4-8 MPH. MIXING HEIGHT.......9400 FT AGL UNTIL 1900...QUICKLY DECREASING BELOW 1000 FT AGL BY 2100. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 LOW. .MONDAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1200...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....64-66. MIN HUMIDITY........22-26%. 20-FOOT WINDS.......WEST WINDS 6-13 MPH. TRANSPORT WINDS.....SOUTHWEST 4-12 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700. 10200-11200 FT AGL AFTER 1100. SMOKE DISPERSAL.....POOR UNTIL 0900...THEN FAIR UNTIL 1000...THEN GOOD UNTIL 1100...THEN VERY GOOD UNTIL 1700...THEN GOOD. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1200...THEN SLIGHT CHANCE OF THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE MID 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .WEDNESDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1200...THEN SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 60. SOUTHEAST WINDS AROUND 8 MPH. .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1200...THEN CHANCE OF THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 5 MPH. FIRE WEATHER TABLE FOR GRAND COUNTY. +++ 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 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 10/03-13 60 5 62 22 NW 7 1 10063 N 6 46102 F 10/03-14 51 5 62 21 NW 7 2 10908 NW 5 39155 P 10/03-15 51 5 63 20 NW 7 13 4 2 NW 6 11753 NW 3 32209 P 10/03-16 51 5 62 19 NW 8 2 10966 NW 3 32787 P 10/03-17 51 5 61 18 NW 9 2 10179 NW 3 33365 P 10/03-18 51 5 60 18 W 8 14 4 2 NW 7 9392 W 5 33943 P 10/03-19 51 5 56 20 W 8 2 6376 W 5 23132 P 10/03-20 51 5 53 22 SW 7 2 3360 SW 5 12322 P 10/03-21 36 0 52 23 SW 6 6 4 1 W 8 344 SW 5 1511 P 10/03-22 36 0 50 24 SW 6 1 324 SW 6 1657 P 10/03-23 36 0 49 26 SW 6 1 305 S 7 1802 P 10/04-00 45 0 48 28 SW 6 6 4 1 W 3 286 S 8 1948 P 10/04-01 45 0 47 29 SW 6 1 297 S 7 1822 P 10/04-02 45 0 46 31 SW 7 1 309 S 7 1696 P 10/04-03 45 0 45 32 SW 7 7 3 1 SW 5 321 S 6 1570 P 10/04-04 45 0 44 34 SW 7 1 362 S 5 1465 P 10/04-05 45 0 44 35 SW 7 1 402 S 5 1360 P 10/04-06 45 0 44 37 SW 7 7 3 1 SW14 443 S 3 1256 P 10/04-07 45 0 45 37 SW 6 1 2184 SW 6 16371 P 10/04-08 45 0 49 34 SW 5 1 3926 SW 7 31486 P 10/04-09 45 0 54 30 SW 3 3 2 1 SW15 5667 SW 9 46601 F 10/04-10 45 0 59 27 SW 5 1 7233 SW 12 74179 G 10/04-11 45 0 61 26 W 6 1 8800 SW 13 101756 V 10/04-12 73 20 63 26 W 7 7 2 3 S23 10366 SW 14 129333 V 10/04-13 73 20 64 24 W 8 3 10708 SW 14 127832 V 10/04-14 73 20 65 25 W 8 3 11050 SW 13 126331 V 10/04-15 73 20 65 26 W 8 13 3 3 SW21 11392 SW 13 124829 V 10/04-16 73 20 65 28 W 7 3 10743 SW 12 106424 V 10/04-17 73 20 63 30 W 7 3 10094 SW 10 88020 G 10/04-18 63 20 62 32 W 6 6 3 3 S17 9597 SW 9 80839 G 10/04-19 63 20 57 37 W 6 3 7358 SW 9 61240 G 10/04-20 63 20 53 41 W 7 3 5120 W 9 41641 F 10/04-21 63 20 51 43 W 7 7 3 3 S17 2882 W 9 22042 P 10/04-22 63 20 49 47 SW 7 3 2048 SW 7 15220 P 10/04-23 63 20 47 48 SW 6 3 1213 SW 6 8398 P 10/05-00 59 10 45 50 S 6 6 3 1 S20 379 S 5 1575 P 10/05-01 59 10 44 54 S 6 1 340 S 5 1435 P 10/05-02 59 10 43 59 S 6 1 302 S 5 1294 P 10/05-03 59 10 42 63 S 6 6 2 1 S18 264 S 5 1153 P 10/05-04 59 10 41 65 S 6 1 260 S 5 1079 P 10/05-05 59 10 40 65 S 5 1 257 SW 5 1005 P 10/05-06 59 10 40 64 S 5 5 2 1 S14 253 SW 5 931 P 10/05-07 59 10 40 65 S 5 1 492 SW 3 1388 P 10/05-08 59 10 42 62 S 3 1 731 SW 3 1845 P 10/05-09 59 10 45 57 S 3 3 3 1 S16 970 SW 2 2302 P 10/05-10 59 10 51 47 SE 3 1 3399 S 5 22050 P 10/05-11 59 10 56 40 E 5 1 5829 S 7 41799 F 10/05-12 68 23 58 38 NE 5 5 3 3 S22 8258 S 8 61548 G 10/05-13 68 23 60 35 NE 3 3 9286 S 8 69216 G 10/05-14 68 23 63 31 E 2 3 10314 SE 8 76884 G 10/05-15 68 23 64 28 CALM 1 3 3 S17 11342 SE 8 84553 G 10/05-16 68 23 65 27 SE 2 3 10573 SE 8 70313 G 10/05-17 68 23 64 26 SW 3 3 9804 S 7 56074 F 10/05-18 68 23 62 27 W 5 5 3 3 S20 9036 S 6 41834 F 10/05-19 68 23 56 32 SW 5 3 6873 SE 6 31914 P 10/05-20 68 23 53 36 S 3 3 4711 SE 6 21994 P 10/05-21 68 23 51 39 SE 3 3 3 3 S20 2548 E 6 12074 P 10/05-22 68 23 49 41 SE 3 3 1943 E 6 9130 P 10/05-23 68 23 47 44 SE 3 3 1337 E 6 6186 P 10/06-00 68 14 46 46 SE 3 3 3 1 S15 732 E 5 3242 P 10/06-01 68 14 45 51 SE 3 1 596 E 5 2574 P 10/06-02 68 14 44 56 SE 5 1 461 E 5 1905 P 10/06-03 68 14 43 60 SE 5 5 3 1 S20 326 SE 5 1237 P 10/06-04 68 14 42 63 SE 5 1 289 SE 5 1119 P 10/06-05 68 14 42 65 SE 5 1 253 E 5 1001 P 10/06-06 68 14 41 66 SE 5 5 3 1 S24 216 E 5 883 P 10/06-07 68 14 41 66 E 6 1 299 E 6 1858 P 10/06-08 68 14 43 63 E 7 1 382 E 8 2834 P 10/06-09 68 14 45 60 E 8 8 3 1 S26 465 E 9 3809 P 10/06-10 68 14 49 53 E 8 1 2234 E 12 30951 P 10/06-11 68 14 53 48 E 9 1 4003 SE 15 58094 F 10/06-12 68 20 55 47 E 9 9 2 3 S25 5772 SE 17 85237 G 10/06-13 68 20 57 44 E 10 3 6584 SE 17 95486 G 10/06-14 68 20 59 40 SE 10 3 7395 S 16 105735 V 10/06-15 68 20 60 38 SE 12 12 2 3 SW17 8206 S 16 115984 V 10/06-16 68 20 60 38 SE 12 3 7222 S 16 101103 V 10/06-17 68 20 59 41 SE 12 3 6237 S 16 86222 G 10/06-18 68 20 58 44 SE 12 12 3 3 SW14 5253 S 16 71341 G 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...LARRY KLOCK REASON FOR REQUEST...WILDFIRE .TAG 20101003.GRAND.01/BOU