FNUS75 KBOU 031444 FWSBOU SPOT FORECAST FOR EAST ROAD CORRIDOR RX...NPS NATIONAL WEATHER SERVICE DENVER/BOULDER CO 842 AM MDT WED APR 3 2013 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...SLIGHTLY DRIER AIR WILL BE OVER THE AREA TODAY AS THE FLOW ALOFT BECOMES NORTHERLY. THERE WILL BE ENOUGH MOISTURE FOR CUMULUS BUILDUPS BY THE AFTERNOON WITH SCATTERED SNOW SHOWERS DEVELOPING. LITTLE OR NO ACCUMULATION IS EXPECTED. THE AIRMASS WILL BE SLIGHTLY UNSTABLE...ALLOWING FOR FAIRLY HIGH MIXING HEIGHTS. THIS WILL COMBINE WITH MODEST NORTHERLY TRANSPORT WINDS FOR DECENT SMOKE DISPERSION. WEST TO NORTHWEST SURFACE WINDS WILL PREVAIL THROUGH THE DAY. THE AIRMASS WILL QUICKLY STABILIZE THIS EVENING...WITH A FEW SNOW SHOWERS STILL POSSIBLE. ON THURSDAY THE FLOW ALOFT WILL BECOME WESTERLY AS HIGH PRESSURE BUILDS OVER THE AREA WITH DRIER AND WARMER CONDITIONS. THE AIRMASS WILL BECOME SLIGHTLY UNSTABLE BY THE AFTERNOON. WESTERLY TRANSPORT WINDS WILL PROVIDE FOR DECENT SMOKE DISPERSION. AT THE SURFACE...WESTERLY WINDS WILL PREVAIL WITH SOME GUSTS DURING THE AFTERNOON. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%). A FEW SNOW SHOWERS POSSIBLE UNTIL 1200...THEN SCATTERED SNOW SHOWERS. LITTLE OR NO ACCUMULATION EXPECTED. MAX TEMPERATURE.....44-49. MIN HUMIDITY........34-39%. WIND (20 FT)........WEST TO NORTHWEST 4-10 MPH. MIXING HEIGHT.......8800-9800 FT AGL...INCREASING TO 13500-14500 FT AGL BY 1500...THEN 12700 FT AGL BY 1700. TRANSPORT WINDS.....NORTH 12-15 MPH. SMOKE DISPERSAL.....GOOD. VERY GOOD TO EXCELLENT AFTER 1200. CWR.................10 PERCENT. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 2400...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. MIN TEMPERATURE.....23-28. MAX HUMIDITY........70-75%. WIND (20 FT)........WEST WINDS 8-11 MPH. GUSTS UP TO 20 MPH AFTER MIDNIGHT. MIXING HEIGHT.......10800 FT AGL...LOWERING TO 1000-1600 FT AGL AFTER 2400. TRANSPORT WINDS.....WEST 15-25 MPH. SMOKE DISPERSAL.....EXCELLENT UNTIL 1900...THEN GOOD. FAIR BY 2200 THEN POOR AFTER 2400. CWR.................5 PERCENT. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY(40-50%) UNTIL 1200...THEN MOSTLY SUNNY. MAX TEMPERATURE.....48-51. MIN HUMIDITY........33-37%. WIND (20 FT)........WEST WINDS 8-11 MPH. GUSTS UP TO 20 MPH IN THE AFTERNOON. MIXING HEIGHT.......BELOW 1000 FT AGL...INCREASING TO 7000-8000 FT AGL AFTER 1100. TRANSPORT WINDS.....WEST 15-20 MPH. SMOKE DISPERSAL.....POOR UNTIL 0800...THEN FAIR UNTIL 0900...THEN GOOD UNTIL 1000...THEN VERY GOOD UNTIL 1500...THEN GOOD. CWR.................0 PERCENT. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 50S. WEST WINDS 9-13 MPH. .SATURDAY...MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE UPPER 40S. WEST WINDS 8-13 MPH. .SUNDAY...MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS AND SHOWERS. LOWS IN THE UPPER 20S. HIGHS IN THE MID 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 04/03-08 73 21 4 32 69 NNW 3 3 3 1 NNE 22 4383 N 13 55380 F 04/03-09 55 18 4 36 59 NNW 3 3 3 1 NNE 23 6032 N 15 79446 G 04/03-10 55 18 4 40 50 NNW 3 3 3 1 NNE 23 8215 N 15109286 V 04/03-11 51 18 4 43 44 N 5 5 3 1 N 23 10398 N 15139126 V 04/03-12 51 30 9 45 40 N 5 5 3 1 N 23 12581 N 15168966 E 04/03-13 56 30 9 47 37 N 6 6 3 1 N 22 13890 N 15179369 E 04/03-14 56 30 9 49 34 NNW 6 6 3 1 N 23 15200 NNW 15189773 E 04/03-15 54 30 9 49 34 NNW 6 6 3 1 NNW 23 16509 NNW 14200176 E 04/03-16 54 30 9 48 35 NNW 6 6 3 1 NNW 23 14605 NNW 15185119 E 04/03-17 54 30 9 46 38 NW 7 7 3 1 NNW 24 12702 NNW 16170063 E 04/03-18 57 17 3 43 43 WNW 8 8 3 1 NNW 24 10798 NW 16155006 E 04/03-19 57 17 3 40 49 WNW 8 13 3 1 NNW 25 8231 NW 20125251 V 04/03-20 57 17 3 37 56 WNW 9 14 3 1 NNW 25 5664 NW 22 95495 G 04/03-21 57 17 3 34 64 W 9 15 3 1 NNW 25 3097 NW 24 65739 G 04/03-22 57 17 3 33 67 W 9 15 3 1 NW 26 2610 WNW 23 53516 F 04/03-23 57 17 3 32 69 W 9 15 3 1 NW 26 2123 WNW 22 41292 F 04/04-00 61 15 3 31 72 W 9 16 3 1 NW 26 1636 W 21 29069 P 04/04-01 61 15 3 31 71 W 10 17 3 1 NW 28 1451 W 21 25986 P 04/04-02 61 15 3 31 70 W 12 20 3 1 NW 28 1267 W 21 22903 P 04/04-03 61 15 3 30 72 W 13 21 3 1 NW 29 1082 W 21 19820 P 04/04-04 61 15 3 29 73 W 13 20 3 1 NW 32 1020 W 21 18293 P 04/04-05 61 15 3 28 75 W 12 18 2 1 NNW 36 957 W 20 16765 P 04/04-06 48 0 0 29 72 W 10 16 2 1 NNW 38 895 W 20 15238 P 04/04-07 48 0 0 31 67 W 10 16 2 1 NNW 38 2405 W 17 36429 P 04/04-08 48 0 0 35 58 W 10 16 2 1 NW 36 3915 W 16 57621 F 04/04-09 48 0 0 39 50 W 10 16 2 1 NW 32 5425 W 14 78812 G 04/04-10 48 0 0 43 44 W 10 16 2 1 NW 31 6798 W 15100962 V 04/04-11 48 0 0 46 40 W 9 15 2 1 NW 31 8171 WNW 16123111 V 04/04-12 24 0 0 48 37 W 9 15 2 1 NW 31 9544 WNW 17145261 V 04/04-13 24 0 0 50 35 W 10 16 2 1 NW 31 8910 WNW 17133657 V 04/04-14 24 0 0 51 33 W 12 18 2 1 NW 31 8276 W 17122053 V 04/04-15 24 0 0 51 33 W 13 21 2 1 NW 31 7642 W 16110449 V 04/04-16 24 0 0 50 34 W 13 20 2 1 NW 31 7008 W 16 98845 G 04/04-17 24 0 0 47 39 W 12 18 2 1 NW 31 6374 W 16 87241 G 04/04-18 29 0 0 44 43 W 10 16 2 1 WNW 31 5740 W 15 75637 G 04/04-19 29 0 0 41 48 W 10 16 2 1 WNW 30 4896 W 15 64066 G 04/04-20 29 0 0 38 54 W 10 16 2 1 WNW 29 4051 W 14 52495 F 04/04-21 29 0 0 36 59 W 10 16 3 1 WNW 26 3206 W 13 40923 F 04/04-22 29 0 0 35 61 W 10 16 3 1 W 26 2362 W 13 29352 P 04/04-23 29 0 0 35 61 W 10 16 3 1 W 25 1517 WSW 12 17781 P 04/05-00 30 0 0 35 61 WSW 10 16 3 1 W 25 673 WSW 10 6209 P 04/05-01 30 0 0 35 61 W 12 17 3 1 W 26 642 WSW 12 6121 P 04/05-02 30 0 0 34 62 W 12 20 3 1 W 29 612 WSW 12 6032 P 04/05-03 30 0 0 34 61 W 13 21 3 1 W 31 581 WSW 12 5943 P 04/05-04 30 0 0 33 63 W 13 21 2 1 WSW 35 551 WSW 13 5854 P 04/05-05 30 0 0 33 62 W 13 21 2 1 WSW 37 520 WSW 13 5765 P 04/05-06 30 9 2 34 59 W 13 21 2 1 WSW 40 490 WSW 14 5676 P 04/05-07 30 9 2 36 54 W 12 18 2 1 WSW 44 2195 WSW 17 61680 G 04/05-08 30 9 2 40 46 WSW 10 17 2 1 WSW 46 3899 WSW 21117684 V 04/05-09 30 9 2 44 40 WSW 10 16 2 1 WSW 49 5604 WSW 25173688 E 04/05-10 30 9 2 47 36 WSW 12 17 2 1 W 53 7308 W 29229691 E 04/05-11 30 9 2 50 32 WSW 13 20 2 1 W 55 9013 W 32285695 E 04/05-12 64 18 4 52 31 WSW 14 22 2 1 W 56 10717 W 37341699 E 04/05-13 64 18 4 53 31 WSW 15 24 2 1 W 58 10256 W 37330204 E 04/05-14 64 18 4 53 32 WSW 16 25 2 1 W 58 9794 W 38318709 E 04/05-15 64 18 4 52 35 W 16 25 3 1 W 58 9333 W 38307215 E 04/05-16 64 18 4 50 39 W 16 26 3 1 W 58 8871 W 39295720 E 04/05-17 64 18 4 48 43 W 16 26 3 1 W 56 8410 W 39284226 E 04/05-18 64 23 5 45 49 W 16 25 3 1 W 55 7948 W 39272731 E 04/05-19 64 23 5 43 54 W 16 25 3 1 W 56 7171 W 38241758 E 04/05-20 64 23 5 41 59 W 16 25 3 1 W 55 6393 W 37210785 E 04/05-21 64 23 5 39 64 W 15 24 3 1 W 55 5615 W 35179812 E 04/05-22 64 23 5 37 69 W 14 22 2 1 W 55 4837 W 33148839 V 04/05-23 64 23 5 36 71 W 13 20 2 1 W 54 4060 W 32117866 V 04/06-00 46 25 5 35 72 W 12 18 2 1 W 52 3282 W 30 86894 G 04/06-01 46 25 5 35 71 W 12 18 2 1 W 49 3170 W 28 76807 G 04/06-02 46 25 5 35 69 W 12 18 2 1 W 46 3058 W 24 66719 G 04/06-03 46 25 5 34 69 W 12 18 2 1 W 41 2946 W 21 56632 F 04/06-04 46 25 5 33 70 W 12 18 2 1 W 38 2835 W 18 46545 F 04/06-05 46 25 5 31 73 W 12 18 2 1 W 35 2723 W 15 36458 P 04/06-06 60 30 9 31 72 W 12 18 2 1 W 32 2611 WSW 12 26371 P 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...LESZCYNSKI REQUESTED BY...TODD PINKOWSKI TYPE OF REQUEST...PRESCRIBED .TAG 20130403.EASTR.01/BOU