FNUS75 KBOU 071729 FWSBOU SPOT FORECAST FOR NIWOT DITCH RX...USFS NATIONAL WEATHER SERVICE DENVER CO 1129 AM MDT THU APR 7 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... .DISCUSSION...SOUTHWEST FLOW ALOFT WILL INCREASE TONIGHT AND FRIDAY. THIS WILL USHER IN WARM AND DRY AIR INTO COLORADO. SOUTH TO SOUTHWEST WINDS WILL DEVELOP FRIDAY WITH GUSTS TO 25 MPH. THE NEXT CHANCE FOR PRECIPITATION WILL COME SATURDAY NIGHT AND SUNDAY AS A LOW PRESSURE SYSTEM MOVES ACROSS SOUTHERN COLORADO. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TODAY... SKY/WEATHER.........MOSTLY CLOUDY(50-60%). MAX TEMPERATURE.....57-62. MIN HUMIDITY........30-35%. 20-FOOT WINDS.......NORTHEAST WINDS 5-8 MPH. TRANSPORT WINDS.....SOUTHWEST AROUND 4 MPH. MIXING HEIGHT.......4200-5200 FT AGL UNTIL 1400...THEN 6400-7400 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 2100...THEN PARTLY CLOUDY UNTIL 0300...THEN CLEAR. MIN TEMPERATURE.....30-35. MAX HUMIDITY........60-70%. 20-FOOT WINDS.......SOUTHWEST WINDS 3-8 MPH. TRANSPORT WINDS.....SOUTHWEST 4-8 MPH. MIXING HEIGHT.......4800 FT AGL UNTIL 1900. BELOW 1000 FT AGL AFTER 2100. SMOKE DISPERSAL.....POOR. HAINES INDEX........3 VERY LOW. .FRIDAY... SKY/WEATHER.........PARTLY CLOUDY(35-45%). MAX TEMPERATURE.....68-73. MIN HUMIDITY........10-15%. 20-FOOT WINDS.......SOUTH WINDS 13-19 MPH WITH GUSTS TO 25 MPH. TRANSPORT WINDS.....SOUTH 4-8 MPH UNTIL 1200...THEN SOUTHWEST 12-20 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900. 9600-10600 FT AGL AFTER 1500. SMOKE DISPERSAL.....POOR UNTIL 1100. EXCELLENT AFTER 1500. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .SATURDAY...MOSTLY CLOUDY. CHANCE OF RAIN AFTER 1800. LOWS AROUND 40. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS 10-20 MPH WITH GUSTS TO 30 MPH. .SUNDAY...MOSTLY CLOUDY. CHANCE OF RAIN AND SNOW UNTIL 1800. COOLER. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO 30 MPH. .MONDAY...PARTLY CLOUDY. WARMER. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS AROUND 6 MPH. FIRE WEATHER TABLE FOR NIWOT DITCH RX. +++ 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 04/07-11 66 3 52 50 E 6 1 3664 SW 3 11623 P 04/07-12 51 3 55 43 E 6 6 4 1 S17 4684 S 3 15787 P 04/07-13 51 3 58 38 E 5 1 5779 S 5 23768 P 04/07-14 51 3 60 35 SE 3 1 6874 SW 5 31750 P 04/07-15 51 3 60 32 SE 2 2 3 1 SW16 7969 SW 6 39731 P 04/07-16 51 3 60 30 SE 2 1 6881 SW 6 35384 P 04/07-17 51 3 59 30 S 3 1 5792 SW 6 31037 P 04/07-18 51 3 56 31 S 5 5 3 1 SW22 4703 SW 7 26690 P 04/07-19 51 3 54 33 S 5 1 3190 SW 6 18014 P 04/07-20 51 3 50 38 S 5 1 1677 SW 6 9338 P 04/07-21 45 3 46 45 S 5 5 3 1 SW30 164 S 5 662 P 04/07-22 45 7 43 50 SW 5 1 157 SW 6 704 P 04/07-23 45 7 41 54 W 6 1 149 W 6 746 P 04/08-00 18 7 40 57 NW 6 6 3 1 SW31 142 W 7 788 P 04/08-01 18 7 38 60 W 6 1 144 W 6 733 P 04/08-02 4 7 37 61 S 6 1 147 SW 6 677 P 04/08-03 4 7 37 61 S 6 6 3 1 SW36 149 S 5 622 P 04/08-04 4 7 36 61 S 6 1 166 S 5 731 P 04/08-05 4 7 37 59 S 5 1 184 SW 6 841 P 04/08-06 42 0 37 57 S 5 5 3 1 SW38 201 SW 6 950 P 04/08-07 42 0 38 54 S 5 1 507 SW 6 2656 P 04/08-08 42 0 42 48 SE 5 1 813 S 6 4363 P 04/08-09 42 0 46 39 SE 6 6 2 1 SW43 1119 S 6 6069 P 04/08-10 42 0 52 31 SE 7 1 2821 S 8 24272 P 04/08-11 42 0 57 26 SE 8 1 4523 S 9 42475 F 04/08-12 42 0 61 22 SE 10 16 2 1 SW36 6225 S 12 60679 G 04/08-13 42 0 64 18 S 13 1 7849 S 13 95899 G 04/08-14 42 0 66 16 S 15 1 9472 SW 15 131118 V 04/08-15 42 0 68 15 SW 16 24 3 1 SW26 11095 SW 17 166338 E 04/08-16 42 0 68 14 SW 16 1 10143 SW 18 158044 E 04/08-17 42 0 66 15 SW 15 1 9190 SW 18 149749 V 04/08-18 44 0 67 15 W 14 21 4 1 S25 8237 SW 20 141454 V 04/08-19 44 0 65 16 W 12 1 5715 SW 16 96343 G 04/08-20 44 0 61 19 W 9 1 3193 SW 14 51231 F 04/08-21 44 0 58 21 W 6 6 4 1 S25 672 SW 10 6119 P 04/08-22 44 0 55 23 W 5 1 439 SW 9 3607 P 04/08-23 44 0 54 25 W 3 1 396 SW 9 3212 P 04/09-00 44 0 53 27 W 3 6 3 1 S32 352 SW 9 2818 P 04/09-01 44 0 48 33 W 3 1 298 SW 8 2168 P 04/09-02 44 0 46 36 NW 3 1 243 SW 7 1517 P 04/09-03 44 0 45 39 N 3 3 3 1 SW44 189 W 6 867 P 04/09-04 44 0 44 40 NW 3 1 180 W 6 835 P 04/09-05 44 0 43 42 W 5 1 170 W 6 803 P 04/09-06 43 0 41 45 W 5 5 3 1 SW38 161 W 6 771 P 04/09-07 43 0 39 48 SW 5 1 157 SW 5 640 P 04/09-08 43 0 40 44 S 5 1 153 S 3 509 P 04/09-09 43 0 41 42 SE 5 3 3 1 S26 149 S 3 378 P 04/09-10 43 0 48 31 SE 3 1 359 SE 5 1791 P 04/09-11 43 0 52 25 S 3 1 570 SE 6 3205 P 04/09-12 47 0 56 21 S 5 7 3 1 SW29 780 SE 7 4619 P 04/09-13 47 0 59 19 S 8 1 2124 S 12 32369 P 04/09-14 47 0 62 17 S 13 1 3468 S 16 60120 G 04/09-15 47 0 63 16 SW 17 24 5 1 SW31 4811 SW 21 87871 G 04/09-16 47 0 64 15 S 20 1 4847 SW 20 81194 G 04/09-17 47 0 65 15 S 20 1 4883 SW 17 74517 G 04/09-18 74 27 63 17 S 20 20 5 1 S25 4919 SW 16 67840 G 04/09-19 74 27 61 19 S 20 1 3448 SW 14 46426 F 04/09-20 74 27 57 23 S 18 1 1978 W 10 25011 P 04/09-21 74 27 54 28 S 16 14 3 1 S33 507 W 8 3597 P 04/09-22 74 27 52 33 S 12 1 1577 NW 9 14604 P 04/09-23 74 27 50 37 SW 8 1 2647 N 10 25612 P 04/10-00 74 33 49 41 SW 5 6 2 1 S41 3716 NE 12 36619 P 04/10-01 74 33 45 49 W 5 1 3678 N 12 38466 P 04/10-02 74 33 43 54 NW 8 1 3640 NW 13 40314 F 04/10-03 74 33 42 56 N 10 6 2 1 SE21 3602 NW 14 42161 F 04/10-04 74 33 41 58 N 13 1 3343 NW 14 41128 F 04/10-05 74 33 40 60 N 15 1 3084 NW 15 40095 F 04/10-06 65 28 38 63 N 16 8 2 1 NW 8 2825 N 16 39062 P 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...JAY STALNACKER FMO REASON FOR REQUEST...PRESCRIBED .TAG 20110408.NIWOT.01/BOU