FNUS75 KBOU 221302 FWSBOU SPOT FORECAST FOR PRO CYCLE BIKE RACE...USFS NATIONAL WEATHER SERVICE DENVER CO 654 AM MDT WED AUG 22 2012 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...HIGH PRESSURE WILL WEAKEN TODAY AND MOISTURE WILL INCREASE FROM THE WEST AS A WEAK UPPER LEVEL DISTURBANCE TRAVERSES THE STATE. THERE WILL BE A BETTER CHANCE OF SHOWERS OVER THE MOUNTAINS...WITH JUST A SLIGHT CHANCE OF SHOWERS OR THUNDERSTORMS ALONG THE FRONT RANGE FOOTHILLS. TEMPERATURES WILL REMAIN WARM TODAY...WITH READINGS IN THE MID TO UPPER 80S IN THE FOOTHILLS. ANOTHER UPPER TROUGH OVER THE GREAT BASIN WILL MOVE OVER THE STATE THURSDAY NIGHT INTO FRIDAY TURNING FLOW ALOFT SOUTHWEST THEN LIGHT WEST TO NORTHWEST. MOISTURE WILL SPREAD ACROSS THE REGION FOR A CHANCE OF AFTERNOON AND EVENING THUNDERSTORMS OVER THE MOUNTAINS AND FOOTHILLS. A WEAK FRONT WILL MOVE ACROSS THE PLAINS THURSDAY MORNING WHICH WILL INCREASE THE LOW LEVEL MOISTURE...BUT MAY LIMIT STORM DEVELOPMENT. A BETTER CHANCE OF STORMS ACROSS THE AREA WILL EXIST FRIDAY AS THE UPPER TROUGH MOVES OVERHEAD. GUSTY WINDS TO 35 MPH WILL ACCOMPANY THE STORMS WITH BRIEF HEAVY RAIN POSSIBLE WITH THE STRONGER STORMS. HIGH PRESSURE WILL BUILD ACROSS THE AREA SATURDAY AND SUNDAY WITH A SLIGHT WARMING TREND...ANY STORM CHANCES WILL BE CONFINED TO THE HIGH COUNTRY EACH AFTERNOON AND EVENING. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....85. MIN HUMIDITY........23%. 20-FOOT WINDS.......NORTHWEST WINDS 8-14 MPH. GUSTS UP TO 20 MPH EARLY IN THE MORNING. TRANSPORT WINDS.....NORTHWEST 4-12 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900. 10200-11200 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1100...THEN GOOD UNTIL 1200...THEN VERY GOOD UNTIL 1300...THEN GOOD UNTIL 1600...THEN FAIR. HAINES INDEX........3 VERY LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS UNTIL 2400. MIN TEMPERATURE.....57. MAX HUMIDITY........66%. 20-FOOT WINDS.......WEST WINDS 9-15 MPH. TRANSPORT WINDS.....WEST 4-12 MPH. MIXING HEIGHT.......10000 FT AGL UNTIL 1900. BELOW 1000 FT AGL AFTER 2400. SMOKE DISPERSAL.....FAIR UNTIL 1900. POOR AFTER 0500. HAINES INDEX........3 VERY LOW. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200 UNTIL 1500...THEN CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....80. MIN HUMIDITY........27%. 20-FOOT WINDS.......NORTHWEST WINDS 6-7 MPH UNTIL 0900...THEN UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1200...THEN NORTHEAST AROUND 5 MPH UNTIL 1500...THEN UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....NORTH AROUND 4 MPH UNTIL 1200...THEN SOUTHEAST. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700. 9600-10600 FT AGL AFTER 1100. SMOKE DISPERSAL.....POOR UNTIL 1200...THEN FAIR. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 0600 UNTIL 1800...THEN CHANCE OF THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS AROUND 80. NORTHWEST WINDS AROUND 5 MPH. .SATURDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS UNTIL 0600. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S. NORTH WINDS AROUND 6 MPH. .SUNDAY...PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 80S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. FIRE WEATHER TABLE FOR PRO CYCLEBIKERACE. +++ 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 WR AT 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 08/22-06 65 0 0 56 52 W13 21 3 1 NW14 161 W13 1700 P 08/22-07 65 0 0 58 50 W12 20 3 1 NW13 500 W12 5147 P 08/22-08 65 0 0 64 41 W10 17 3 1 NW12 838 W12 8594 P 08/22-09 65 0 0 69 36 W 9 15 3 1 NW10 1176 NW12 12041 P 08/22-10 65 0 0 72 32 W 9 15 3 1 NW 9 4094 NW12 43312 F 08/22-11 65 0 0 76 29 W10 16 3 1 NW 8 7012 NW13 74583 G 08/22-12 77 17 3 78 26 W10 16 3 3 NW 7 9930 NW13 105854 V 08/22-13 77 17 3 80 25 W10 17 3 3 N 6 10369 NW10 91208 G 08/22-14 77 17 3 82 24 W10 17 2 3 NE 3 10808 NW 8 76562 G 08/22-15 78 17 3 84 23 NW10 16 2 3 E 2 11246 NW 7 61915 G 08/22-16 78 17 3 84 23 NW 9 15 2 3 E 2 10806 NW 6 54927 F 08/22-17 78 17 3 84 24 NW 8 13 3 3 SE 2 10365 NW 6 47939 F 08/22-18 80 15 3 82 26 NW 7 7 3 3 S 3 9925 NW 5 40951 F 08/22-19 80 15 3 79 29 W 8 8 3 3 SE 3 7793 W 6 35550 P 08/22-20 80 15 3 75 33 W 9 14 3 3 E 5 5661 W 7 30150 P 08/22-21 80 15 3 72 38 W10 16 3 3 E 6 3529 W 8 24749 P 08/22-22 80 15 3 70 42 W12 18 3 3 E 6 2474 W 9 17838 P 08/22-23 80 15 3 68 46 W13 20 3 3 E 7 1419 W12 10927 P 08/23-00 79 0 0 65 52 W13 21 3 1 E 8 363 W13 4016 P 08/23-01 79 0 0 62 57 W13 20 3 1 E10 324 W12 3354 P 08/23-02 79 0 0 60 60 W12 18 2 1 E13 285 W10 2691 P 08/23-03 79 0 0 59 61 W10 16 2 1 E15 246 W 9 2029 P 08/23-04 79 0 0 59 62 W 9 15 2 1 SE16 242 W 8 1770 P 08/23-05 79 0 0 58 63 W 8 13 2 1 SE18 238 W 7 1510 P 08/23-06 61 2 0 57 66 W 7 7 2 1 SE18 235 W 6 1251 P 08/23-07 61 2 0 58 62 W 6 6 2 1 SE17 1921 NW 6 7085 P 08/23-08 61 2 0 64 50 NW 3 3 2 1 SE16 3607 N 5 12918 P 08/23-09 61 7 1 68 43 N 2 2 2 1 SE13 5293 NE 5 18752 P 08/23-10 61 7 1 71 38 N 2 2 3 1 SE13 6719 NE 5 26341 P 08/23-11 61 7 1 74 34 NE 3 3 2 1 SE13 8146 E 5 33929 P 08/23-12 68 22 4 76 31 NE 5 5 2 3 SE13 9573 E 5 41518 F 08/23-13 68 22 4 78 29 NE 5 5 2 3 SE10 9956 E 5 42072 F 08/23-14 68 22 4 79 27 NE 3 3 3 3 S 9 10339 SE 5 42626 F 08/23-15 68 25 5 80 27 NE 3 3 3 4 S 8 10722 SE 5 43180 F 08/23-16 68 25 5 80 27 NE 3 3 3 4 S 6 10328 SE 5 42422 F 08/23-17 68 25 5 80 28 E 2 2 2 4 SW 5 9934 SE 5 41665 F 08/23-18 73 27 7 79 29 E 2 2 2 4 SW 5 9540 SE 5 40907 F 08/23-19 73 27 7 76 33 SE 3 3 2 4 W 5 7718 S 5 33338 P 08/23-20 73 27 7 70 40 S 3 3 3 4 NW 6 5896 S 5 25769 P 08/23-21 73 10 2 67 45 SW 5 5 3 2 NW 6 4074 S 5 18201 P 08/23-22 73 10 2 65 50 SW 5 5 3 2 N 6 3322 SW 6 15522 P 08/23-23 73 10 2 64 53 SW 5 5 3 2 N 6 2570 SW 6 12843 P 08/24-00 61 4 1 62 56 SW 5 5 3 1 NE 6 1818 SW 7 10165 P 08/24-01 61 4 1 60 59 W 5 5 3 1 NE 5 1292 SW 6 7092 P 08/24-02 61 4 1 59 62 W 5 5 3 1 NE 3 766 W 5 4020 P 08/24-03 61 4 1 58 63 W 5 5 3 1 NE 3 240 W 5 948 P 08/24-04 61 4 1 58 64 W 5 5 3 1 NE 3 229 W 5 937 P 08/24-05 61 4 1 56 69 W 5 5 3 1 NE 3 218 W 5 925 P 08/24-06 74 20 4 56 69 W 5 5 3 1 NE 5 207 W 5 914 P 08/24-07 74 20 4 58 65 W 5 5 3 1 NE 3 1588 W 5 6343 P 08/24-08 74 20 4 64 53 W 6 6 3 1 NE 2 2969 NW 5 11772 P 08/24-09 74 20 4 68 46 NW 6 6 3 3 NE 2 4349 NW 5 17202 P 08/24-10 74 20 4 71 41 NW 6 6 3 3 NE 2 5613 NW 5 20322 P 08/24-11 74 20 4 73 37 NE 5 5 3 3 NE 2 6877 N 3 23443 P 08/24-12 76 23 5 75 34 NE 3 3 3 3 NE 2 8141 N 3 26563 P 08/24-13 76 23 5 77 32 N 2 2 3 3 NE 3 8723 N 3 30776 P 08/24-14 76 23 5 79 30 CALM 1 3 3 NE 5 9306 N 5 34989 P 08/24-15 76 23 5 80 29 CALM 1 3 3 NE 6 9888 N 5 39203 P 08/24-16 76 23 5 80 30 W 2 2 3 3 N10 9106 N 5 37618 P 08/24-17 76 23 5 80 31 NW 3 3 3 3 N14 8325 N 5 36034 P 08/24-18 66 26 6 79 33 NW 5 5 3 4 N17 7543 N 6 34449 P 08/24-19 66 26 6 75 37 NW 6 6 3 4 N16 5855 NW 7 29355 P 08/24-20 66 26 6 70 45 W 7 7 3 4 NE14 4167 NW 8 24261 P 08/24-21 66 26 6 67 51 W 7 7 3 4 NE12 2478 NW 9 19166 P 08/24-22 66 26 6 64 56 W 7 7 3 4 N10 1777 NW 8 13442 P 08/24-23 66 26 6 63 59 W 7 7 3 4 N10 1075 NW 7 7718 P 08/25-00 44 12 2 61 62 W 7 7 3 2 N 9 373 W 6 1993 P 08/25-01 44 12 2 60 65 W 8 13 3 2 N 9 311 W 7 1799 P 08/25-02 44 12 2 58 67 W 9 14 4 2 N10 248 W 8 1604 P 08/25-03 44 12 2 57 68 W 9 15 4 2 N12 186 W 9 1409 P 08/25-04 44 12 2 57 66 W 9 14 4 2 N12 172 W 8 1211 P 08/25-05 44 12 2 56 68 W 8 13 4 2 N12 157 W 7 1013 P 08/25-06 27 5 1 56 66 W 7 7 4 1 N12 143 W 7 815 P KEY: FORECAST - MONTH/DAY-HOUR OF FORECAST /24-HOUR CLOCK LOCAL TIME/ VALID AT SC - SKY COVER /PERCENT/ PP - PROBABILITY OF PRECIPITATION 0.01 INCH /PERCENT/ WR - PROBABILITY OF WETTING RAIN 0.1 INCH /PERCENT/ AT - 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...J STALNACKER REASON FOR REQUEST...PRESCRIBED .TAG 20120821.PROCY.02/BOU