FNUS75 KBOU 041350 FWSBOU SPOT FORECAST FOR EAST ROAD CORRIDOR...NPS NATIONAL WEATHER SERVICE DENVER/BOULDER CO 747 AM MDT THU APR 4 2013 FORECAST IS BASED ON IGNITION TIME OF 0900 MDT ON APRIL 04. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...STRONG UPPER LEVEL HIGH PRESSURE RIDGE WEST OF COLORADO THIS MORNING WILL SHIFT EAST OVER THE COLORADO FRONT RANGE THIS AFTERNOON AND EVENING. NORTHWEST WINDS ALOFT WILL GRADUALLY SHIFT OT A LIGHTER WESTERN COMPONENT WITH PASSAGE OF THE RIDGE. THE AREA WILL ALSO SEE DRY AND WARMER CONDITIONS TODAY WITH TEMPERATURES SOME 3-6 DEGS WARMER THAN YESTERDAY. STRONG SOLAR HEATING WILL GENERATE UPSLOPE/DOWNVALLEY WINDS LATER THIS MORNING...BUT SNOW COVER AT HIGHER ELEVATIONS WILL CAUSE DOWNSLOPE/DOWNVALLEY WINDS TO DEVELOP BY MID-AFTERNOON. SKIES EXPECTED TO REMAIN CLEAR WITH STRONG SURFACE BASED INVERSIONS FORMING IN VALLEY LOCATIONS OVERNIGHT. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....49-54. MIN HUMIDITY........28-32%. WIND (20 FT)........WEST WINDS 3-6 MPH UNTIL 1000...THEN UPSLOPE/UPVALLEY 4-7 MPH UNTIL 1400...WITH WEST 5-10 MPH WITH GUSTS UP TO 22 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0800...THEN 2900-3900 FT AGL UNTIL 0900...THEN 6500-7500 FT AGL UNTIL 1200...THEN 8900-9900 FT AGL UNTIL 1700...THEN 7100 FT AGL. TRANSPORT WINDS.....NORTHWEST 15-20 MPH BECOMING WEST IN THE AFTERNOON. SMOKE DISPERSAL.....POOR UNTIL 0800...THEN FAIR UNTIL 0900...THEN GOOD UNTIL 1000...THEN VERY GOOD. CWR.................0 PERCENT. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR UNTIL 0300...THEN PARTLY CLOUDY (40-50%). MIN TEMPERATURE.....AROUND 28-33. MAX HUMIDITY........66%. WIND (20 FT)........WEST WINDS 10-16 MPH WITH GUSTS TO 25 MPH. MIXING HEIGHT.......5500 FT AGL UNTIL 1900. BELOW 1000 FT AGL AFTER 2200. TRANSPORT WINDS.....WEST 15-25 MPH. SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2100. CWR.................0 PERCENT. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%. CHANCE OF RAIN SHOWERS AFTER 1500. MAX TEMPERATURE.....AROUND 53. MIN HUMIDITY........31%. WIND (20 FT)........WEST WINDS 11-20 MPH WITH GUSTS TO 35 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0700. 8600-9600 FT AGL AFTER 1200. TRANSPORT WINDS.....WEST 30-40 MPH UNTIL 1200...THEN 40-45 MPH. SMOKE DISPERSAL.....POOR UNTIL 0700...THEN GOOD UNTIL 0800...THEN VERY GOOD UNTIL 0900...THEN EXCELLENT. CWR.................0 PERCENT INCREASING TO 10 PERCENT IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...PARTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. WEST WINDS 9-15 MPH. .SUNDAY...MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 40S. WEST WINDS 8-10 MPH. .MONDAY...CLOUDY. CHANCE OF SNOW SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE LOWER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. FIRE WEATHER TABLE FOR EAST ROAD CORRIDOR. +++ 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. FEEDBACK WELCOME. +++ FORECAST SC PP WR AT RH 20-FT G H L 10KFT MIXG TRANS VENTL AJTV VALID AT % % % F % WIND S I A WIND HGT WIND RATE RATNG MPH T L MPH AGL MPH KT-FT 04/04-07 34 1 0 31 66 W 9 15 2 1 NNW 37 2550 WNW 16 42258 F 04/04-08 34 1 0 34 60 W 9 15 2 1 NNW 38 4167 WNW 18 73937 G 04/04-09 19 1 0 38 52 W 10 16 2 1 NNW 38 5784 NW 21105615 V 04/04-10 19 1 0 41 47 W 10 16 2 1 NNW 36 6870 NW 21122428 V 04/04-11 19 1 0 44 43 W 10 17 2 1 NNW 32 7955 WNW 21139241 V 04/04-12 26 1 0 47 39 W 12 18 2 1 NW 30 9041 WNW 20156054 E 04/04-13 26 1 0 49 35 W 13 21 2 1 NW 31 9441 WNW 20155909 E 04/04-14 26 1 0 51 32 W 15 23 2 1 NW 33 9841 WNW 18155763 E 04/04-15 35 1 0 51 32 W 16 25 2 1 NW 35 10242 WNW 17155618 E 04/04-16 35 1 0 50 33 WSW 17 26 2 1 NW 35 8647 WNW 18138003 V 04/04-17 35 1 0 47 37 WSW 17 28 2 1 NW 35 7051 W 21120387 V 04/04-18 40 1 0 44 41 WSW 17 26 2 1 NW 32 5456 W 22102772 V 04/04-19 40 1 0 41 48 WSW 16 25 3 1 WNW 30 4018 W 21 74702 G 04/04-20 40 1 0 38 55 WSW 14 23 3 1 WNW 26 2581 W 20 46632 F 04/04-21 40 1 0 36 61 WSW 13 21 4 1 WNW 24 1143 W 18 18562 P 04/04-22 40 1 0 34 66 WSW 12 18 5 1 W 24 926 W 18 14690 P 04/04-23 40 1 0 34 65 WSW 12 18 5 1 W 24 709 WSW 17 10819 P 04/05-00 49 1 0 34 64 WSW 12 17 5 1 W 25 493 WSW 16 6948 P 04/05-01 49 1 0 34 63 WSW 12 18 5 1 W 26 370 WSW 18 5492 P 04/05-02 49 1 0 34 62 W 13 20 4 1 W 28 248 W 21 4036 P 04/05-03 64 1 0 34 61 W 13 21 3 1 W 29 125 W 24 2581 P 04/05-04 64 1 0 33 62 W 14 21 3 1 W 31 151 W 24 3088 P 04/05-05 64 1 0 32 62 W 13 21 2 1 W 33 176 W 23 3596 P 04/05-06 60 8 2 33 58 W 13 21 2 1 W 36 202 W 23 4104 P 04/05-07 60 8 2 35 54 W 12 20 2 1 W 37 2003 W 30 74209 G 04/05-08 60 8 2 39 46 WSW 12 18 2 1 W 37 3805 W 37144315 V 04/05-09 60 8 2 44 38 WSW 10 16 2 1 W 37 5607 W 44214421 E 04/05-10 60 8 2 47 35 WSW 12 12 2 1 W 39 6800 W 43248749 E 04/05-11 60 8 2 50 34 WSW 13 13 2 1 W 41 7993 W 41283077 E 04/05-12 73 30 9 52 33 WSW 14 22 2 1 W 44 9186 W 40317406 E 04/05-13 73 30 9 53 32 WSW 17 28 2 1 W 46 9576 W 41349307 E 04/05-14 73 30 9 53 31 W 20 31 3 1 W 48 9966 W 44381209 E 04/05-15 73 30 9 52 32 W 22 35 3 1 W 49 10356 W 46413111 E 04/05-16 73 30 9 50 34 W 22 35 3 1 W 52 9136 W 44353831 E 04/05-17 73 30 9 47 40 W 22 35 2 1 W 54 7915 W 43294552 E 04/05-18 67 27 7 45 43 W 21 33 2 1 W 55 6695 W 40235272 E 04/05-19 67 27 7 42 48 W 21 33 2 1 W 56 5812 W 43213067 E 04/05-20 67 27 7 40 52 W 20 31 2 1 W 56 4929 W 46190862 E 04/05-21 67 27 7 38 57 W 20 31 2 1 W 58 4046 W 48168657 E 04/05-22 67 27 7 37 59 W 18 30 2 1 W 58 3885 W 44147084 V 04/05-23 67 27 7 37 59 W 17 28 2 1 W 59 3725 W 38125511 V 04/06-00 37 20 4 36 61 W 16 25 2 1 W 59 3564 W 33103937 V 04/06-01 37 20 4 35 61 W 15 24 2 1 W 59 3439 W 32 95916 G 04/06-02 37 20 4 35 61 W 15 24 2 1 W 58 3314 W 30 87895 G 04/06-03 37 20 4 33 63 W 14 22 2 1 W 56 3189 W 29 79873 G 04/06-04 37 20 4 32 63 W 14 22 2 1 W 55 3121 W 28 75878 G 04/06-05 37 20 4 31 66 W 13 13 2 1 W 54 3053 W 28 71883 G 04/06-06 60 13 3 31 63 W 13 13 2 1 W 51 2985 W 26 67887 G 04/06-07 60 13 3 32 61 W 13 13 2 1 W 46 3748 W 26 86526 G 04/06-08 60 13 3 35 54 W 12 12 2 1 W 40 4511 W 26105164 V 04/06-09 60 13 3 38 48 W 12 12 2 1 W 37 5273 W 26123803 V 04/06-10 60 13 3 41 41 W 12 12 2 1 W 36 6960 W 24141428 V 04/06-11 60 13 3 44 36 W 10 10 2 1 W 36 8646 W 22159054 E 04/06-12 73 29 8 46 32 W 10 10 2 1 W 36 10332 W 20176680 E 04/06-13 73 29 8 47 31 W 12 12 2 1 W 37 10763 W 21189675 E 04/06-14 73 29 8 48 30 W 12 12 3 1 W 38 11194 W 21202671 E 04/06-15 73 29 8 47 32 W 13 13 3 1 W 38 11625 W 22215667 E 04/06-16 73 29 8 45 36 W 13 13 3 1 W 39 10184 W 20180329 E 04/06-17 73 29 8 42 43 W 13 13 3 1 W 39 8744 W 18144991 V 04/06-18 90 48 24 39 50 W 12 12 3 1 W 40 7303 W 17109653 V 04/06-19 90 48 24 36 59 W 10 10 3 1 W 40 5466 W 16 79438 G 04/06-20 90 48 24 34 69 W 9 9 3 1 W 40 3628 W 14 49223 F 04/06-21 90 48 24 33 75 W 8 8 3 1 W 38 1790 W 13 19008 P 04/06-22 90 48 24 32 81 W 7 7 3 1 W 35 1650 WSW 12 16662 P 04/06-23 90 48 24 32 81 W 7 7 3 1 W 29 1509 WSW 10 14316 P 04/07-00 85 48 24 32 81 W 7 7 3 1 W 25 1369 WSW 10 11970 P 04/07-01 85 48 24 31 81 W 8 8 3 1 WSW 24 1192 WSW 10 10379 P 04/07-02 85 48 24 30 81 W 8 8 3 1 WSW 25 1016 W 10 8788 P 04/07-03 85 48 24 29 85 W 9 9 3 1 WSW 26 839 W 10 7197 P 04/07-04 85 48 24 28 85 W 9 9 3 1 WSW 28 1700 W 12 20858 P 04/07-05 85 48 24 27 85 W 10 10 3 1 WSW 30 2560 W 14 34519 P 04/07-06 60 35 13 27 85 W 10 10 3 1 WSW 32 3421 WNW 16 48179 F KEY: FORECAST - MONTH/DAY-HOUR OF FORECAST VALID AT - /24-HOUR CLOCK LOCAL TIME/ SC - SKY COVER /PERCENT/ PP - PROBABILITY OF PRECIPITATION 0.01 INCH /PERCENT/ WR - PROBABILITY OF WETTING RAIN 0.10 INCH /PERCENT/ AT - TEMPERATURE /DEGREES F/ RH - RELATIVE HUMIDITY /PERCENT/ 20-FT WIND - 20-FOOT WIND /MPH/ GST - 20-FOOT WIND GUST /MPH/ HI - HAINES INDEX LAL - LIGHTNING ACTIVITY LEVEL 10KFT WIND - 10000 FEET ABOVE GROUND LEVEL FREE-AIR WINDS /MPH/ MIXG HGT - MIXING HEIGHT /FEET ABOVE GROUND LEVEL/ TRANS 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...BAKER REQUESTED BY...TODD PINKOWSKI TYPE OF REQUEST...PRESCRIBED .TAG 20130404.EASTR.01/BOU