FNUS75 KBOU 011559 FWSBOU SPOT FORECAST FOR OWL MTN SOUTH...USFS NATIONAL WEATHER SERVICE DENVER/BOULDER CO 955 AM MDT MON APR 1 2013 FORECAST IS BASED ON IGNITION TIME OF 1030 MDT ON APRIL 01. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...AN UPPER LEVEL LOW PRESSURE AREA IS MOVING ACROSS UTAH TODAY WITH A WEAK UPPER LEVEL RIDGE OVER COLORADO GIVING WAY TO INCREASING SOUTHWEST FLOW ALOFT. THE UPPER LOW WILL MOVE OVER COLORADO ON TUESDAY. MID-LEVEL MOISTURE AND SOME INSTABILITY WILL BE MOVING OVER NORTH CENTRAL COLORADO THROUGH THIS AFTERNOON AND EVENING WITH THE APPROACH OF THE UPPER LOW. SCATTERED RAIN AND SNOW SHOWER ACTIVITY IS EXPECTED THROUGH THIS AFTERNOON WITH ISOLATED THUNDERSTORMS ALSO POSSIBLE. ADDITIONAL SNOW SHOWERS ARE EXPECTED OVERNIGHT AND TUESDAY MORNING WITH A LESSER THREAT OF THUNDER. UNSETTLED CONDITIONS WILL CONTINUE TUESDAY AS THE UPPER LOW MOVES ACROSS THE REGION. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 1500...THEN SNOW SHOWERS LIKELY AND ISOLATED THUNDERSTORMS. MAX TEMPERATURE.....38-44. MIN HUMIDITY........50-58%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS AFTER 1500. MIXING HEIGHT.......1000-1500 FT AGL UNTIL 1000...THEN 5000-6000 FT AGL UNTIL 1200...THEN 8000-9000 FT AGL UNTIL 1700...THEN 5500-6500 FT AGL. TRANSPORT WINDS.....SOUTHWEST 10-15 MPH. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN GOOD UNTIL 1200...THEN VERY GOOD UNTIL 1600...THEN GOOD UNTIL 1700...THEN FAIR. CWR.................20 PERCENT INCREASING TO 35 PERCENT IN THE AFTERNOON. .TONIGHT... SKY/WEATHER.........CLOUDY. SNOW SHOWERS LIKELY. MIN TEMPERATURE.....18-24. MAX HUMIDITY........90-100%. WIND (20 FT)........DOWNSLOPE/DOWNVALLEY 2-8 MPH. MIXING HEIGHT.......5000-5500 FT AGL UNTIL 1900...THEN 3000-3500 FT AGL UNTIL 2100...THEN BELOW 1000 FT AGL. TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 2400...THEN LIGHT. SMOKE DISPERSAL.....POOR. CWR.................55 PERCENT DECREASING TO 35 PERCENT AFTER MIDNIGHT. .TUESDAY... SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 1200...THEN RAIN SHOWERS OR SNOW SHOWERS LIKELY AND ISOLATED THUNDERSTORMS. MAX TEMPERATURE.....40-46. MIN HUMIDITY........38-44%. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900...THEN 4000-4500 FT AGL UNTIL 1200...THEN 9000-10000 FT AGL UNTIL 1700...THEN 8500-9000 FT AGL. TRANSPORT WINDS.....EAST AROUND 10 MPH. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN GOOD UNTIL 1200...THEN VERY GOOD UNTIL 1600...THEN GOOD. CWR.................30 PERCENT. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...SNOW LIKELY WITH POSSIBLE SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 20S. HIGHS IN THE MID 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .THURSDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW. LOWS IN THE UPPER 20S. HIGHS AROUND 50. SOUTHWEST WINDS 8-12 MPH. FIRE WEATHER TABLE FOR OWL MTN SOUTH. +++ 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 04/01-09 75 43 20 32 61 SSW 5 5 3 1 W 21 1002 SSW 5 4334 P 04/01-10 75 43 20 35 57 SSW 6 6 3 1 W 23 3489 SW 8 37358 P 04/01-11 75 43 20 38 54 SW 6 6 3 1 W 25 5975 WSW 12 70382 G 04/01-12 89 57 33 40 52 WSW 7 7 3 3 W 26 8461 WSW 14103406 V 04/01-13 89 57 33 42 50 WSW 8 13 3 3 WSW 23 8712 WSW 14102391 V 04/01-14 89 57 33 42 51 WSW 8 13 3 3 WSW 20 8962 WSW 13101377 V 04/01-15 89 57 33 41 53 WSW 8 13 3 3 WSW 17 9212 WSW 13100362 V 04/01-16 89 57 33 40 55 SW 7 7 3 3 WSW 17 7904 WSW 12 79640 G 04/01-17 89 57 33 38 60 S 5 5 3 3 WSW 20 6596 WSW 9 58917 F 04/01-18 92 71 54 35 67 S 3 3 3 1 SW 22 5287 SW 8 38195 P 04/01-19 92 71 54 32 74 S 3 3 3 1 WSW 22 3696 SW 8 26363 P 04/01-20 92 71 54 30 79 S 3 3 3 1 WSW 22 2106 S 7 14530 P 04/01-21 92 71 54 28 84 S 5 5 3 1 WSW 22 515 S 6 2698 P 04/01-22 92 71 54 26 88 SSE 6 6 3 1 WSW 20 710 S 6 3932 P 04/01-23 92 71 54 25 90 SSE 6 6 3 1 WSW 18 905 S 7 5166 P 04/02-00 86 59 36 24 92 SE 6 6 3 1 SW 17 1099 S 7 6400 P 04/02-01 86 59 36 23 94 SE 5 5 3 1 SW 15 838 S 6 4566 P 04/02-02 86 59 36 23 93 SE 3 3 3 1 SW 14 576 S 5 2733 P 04/02-03 86 59 36 22 96 SE 2 2 3 1 SW 14 314 S 3 899 P 04/02-04 86 59 36 22 96 SE 2 2 3 1 SSW 14 313 S 3 964 P 04/02-05 86 59 36 21 00 SE 3 3 3 1 SSW 15 312 SSE 3 1030 P 04/02-06 93 56 32 21 00 SE 5 5 3 1 SSW 15 312 SE 5 1096 P 04/02-07 93 56 32 23 93 SE 5 5 3 1 S 15 1696 SE 6 13784 P 04/02-08 93 56 32 27 80 SE 5 5 3 1 SE 15 3081 ESE 8 26473 P 04/02-09 93 56 32 31 69 SE 3 3 3 1 E 14 4465 ESE 10 39162 P 04/02-10 93 56 32 35 58 ESE 2 2 3 1 E 14 7278 ESE 10 70503 G 04/02-11 93 56 32 39 48 E 2 2 3 1 E 14 10090 ESE 12101844 V 04/02-12 92 56 32 42 41 CALM 1 3 3 E 14 12903 ESE 12133185 V 04/02-13 92 56 32 43 39 CALM 1 3 3 E 14 12892 ESE 12123150 V 04/02-14 92 56 32 43 39 CALM 1 3 3 E 13 12882 E 10113114 V 04/02-15 92 56 32 42 41 CALM 1 3 3 E 13 12872 E 9103079 V 04/02-16 92 56 32 40 45 CALM 1 3 3 E 12 11101 E 9 88176 G 04/02-17 92 56 32 37 51 CALM 1 3 3 ENE 12 9331 E 9 73273 G 04/02-18 93 56 32 35 56 CALM 1 3 1 ENE 12 7561 E 9 58371 F 04/02-19 93 56 32 33 61 CALM 1 3 1 ENE 13 6467 ENE 8 47823 F 04/02-20 93 56 32 31 66 CALM 0 3 1 NE 14 5373 ENE 8 37275 P 04/02-21 93 56 32 29 72 CALM 0 3 1 NE 15 4279 ENE 7 26727 P 04/02-22 93 56 32 28 74 CALM 1 3 1 NE 16 3886 ENE 6 21356 P 04/02-23 93 56 32 27 76 CALM 1 3 1 ENE 18 3493 ENE 5 15986 P 04/03-00 54 32 11 27 75 S 2 2 3 1 ENE 20 3100 ENE 3 10615 P 04/03-01 54 32 11 27 74 CALM 1 3 1 ENE 20 3047 NE 5 11439 P 04/03-02 54 32 11 27 72 CALM 1 3 1 NE 20 2995 NE 5 12263 P 04/03-03 54 32 11 27 71 CALM 0 3 1 NE 18 2943 NNE 5 13087 P 04/03-04 54 32 11 25 76 CALM 0 3 1 NE 18 2327 NNE 5 9839 P 04/03-05 54 32 11 24 78 CALM 1 3 1 NNE 18 1712 NNE 5 6591 P 04/03-06 52 17 3 24 78 W 2 2 3 1 NNE 17 1097 NNE 3 3343 P 04/03-07 52 17 3 26 71 W 2 2 3 1 NNE 17 2637 NNE 6 19182 P 04/03-08 52 17 3 29 62 W 3 3 3 1 NNE 17 4177 N 8 35021 P 04/03-09 52 17 3 33 54 W 3 3 3 1 N 17 5717 N 10 50861 F 04/03-10 52 17 3 37 47 W 3 3 3 1 N 17 8685 N 10 77795 G 04/03-11 52 17 3 41 42 W 3 3 3 1 N 17 11653 N 10104730 V 04/03-12 73 20 4 43 41 W 3 3 3 2 N 17 14621 N 10131665 V 04/03-13 73 20 4 45 39 W 3 3 3 2 N 18 15521 N 10142762 V 04/03-14 73 20 4 46 39 W 5 5 3 2 N 18 16421 NNW 10153860 E 04/03-15 73 20 4 46 40 WNW 5 5 3 2 N 20 17320 NNW 12164957 E 04/03-16 73 20 4 44 44 WNW 5 5 3 2 N 20 14243 NNW 12137875 V 04/03-17 73 20 4 42 48 W 5 5 3 2 NNW 20 11166 NW 12110793 V 04/03-18 55 20 4 39 55 W 5 5 3 1 NNW 21 8088 NW 12 83710 G 04/03-19 55 20 4 37 59 W 5 5 1 04/03-20 55 20 4 34 67 W 3 3 1 04/03-21 55 20 4 32 72 W 3 3 1 04/03-22 55 20 4 30 77 W 3 3 1 04/03-23 55 20 4 28 83 WSW 3 3 1 04/04-00 55 14 3 27 85 WSW 3 3 1 04/04-01 55 14 3 27 84 WSW 3 3 1 04/04-02 55 14 3 27 83 WSW 5 5 1 04/04-03 55 14 3 27 82 W 5 5 1 04/04-04 55 14 3 25 89 WSW 5 5 1 04/04-05 55 14 3 23 96 WSW 5 5 1 04/04-06 40 4 1 23 96 WSW 5 5 1 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...DANKERS REQUESTED BY...JON MYERS TYPE OF REQUEST...PRESCRIBED .TAG 20130401.OWLMT.01/BOU