FNUS75 KBOU 311048 FWSBOU SPOT FORECAST FOR CIRCLE-C RX...USFS NATIONAL WEATHER SERVICE DENVER CO 448 AM MDT WED MAR 31 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...SOUTHWEST FLOW ALOFT WILL BE OVER THE AREA TODAY WITH SOME MID AND HIGH LEVEL CLOUDINESS. A WEAK COLD FRONT WILL MOVE THROUGH THE AREA EARLY THIS MORNING WITH NORTH TO NORTHEAST WINDS OF 10-15 MPH. BY 1200 THE WINDS WILL BECOME MORE SOUTHEAST AT 10-15 MPH. SMOKE DISPERSAL WILL BE POOR THROUGH 1000...FAIR FROM 1000-1200...THEN GOOD AFTER 1200. IF INVERSIONS WITH THE WEAK FRONT DO NOT BREAK AS QUICKLY AS FORECAST THEN THESE SMOKE DISPERSAL TIMES COULD BE OFF BY AN HOUR OR TWO. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%). MAX TEMPERATURE.....68. MIN HUMIDITY........24%. WIND (20 FT)........NORTHWEST 8-14 MPH WITH GUSTS TO AROUND 20 MPH UNTIL 0900...THEN NORTHEAST UNTIL 1200...THEN SOUTHEAST 8-12 MPH. TRANSPORT WINDS.....SOUTHWEST 16-24 MPH. MIXING HEIGHT.......2000-3000 FT AGL UNTIL 1000...THEN 6000-7000 FT AGL UNTIL 1300...THEN 9200-10200 FT AGL UNTIL 1700...THEN 7400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1200...THEN GOOD. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. MIN TEMPERATURE.....36. MAX HUMIDITY........65%. WIND (20 FT)........NORTH 8-11 MPH UNTIL 2100...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH UNTIL 2400...THEN WEST 8-13 MPH. TRANSPORT WINDS.....SOUTH 5-16 MPH UNTIL 2400...THEN WEST 4-12 MPH. MIXING HEIGHT.......4400-5400 FT AGL UNTIL 2000. 200-800 FT AGL AFTER 2200. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2100. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY(50-60%). SLIGHT CHANCE OF RAIN. MAX TEMPERATURE.....58. MIN HUMIDITY........28%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1500...THEN WEST 9-10 MPH. TRANSPORT WINDS.....SOUTH 9-20 MPH. MIXING HEIGHT.......1200-2200 FT AGL UNTIL 1100...THEN 4000-5000 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1200. GOOD AFTER 1400. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AND SNOW UNTIL 1800. COOLER. LOWS IN THE LOWER 30S. HIGHS IN THE MID 40S. NORTH WINDS AROUND 8 MPH WITH GUSTS TO AROUND 25 MPH. .SATURDAY...PARTLY CLOUDY. WARMER. LOWS IN THE UPPER 20S. HIGHS AROUND 60. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 60S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR CIRCLE-C RX. +++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE DIGITAL DATABASE. VALUES IN THE TABLE MAY NOT AGREE WITH INFORMATION IN THE NARRATIVE FORECAST. INFORMATION CONTAINED IN THIS TABLE SHOULD NOT BE CONSIDERED AN OFFICIAL 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 03/31-04 35 0 47 50 W 26 1 512 W 36 15026 P 03/31-05 35 0 48 48 W 23 1 650 W 32 17595 P 03/31-06 52 0 48 45 W 14 20 4 1 SW66 788 W 30 20164 P 03/31-07 52 0 49 42 NW 9 1 1741 W 23 24136 P 03/31-08 52 0 50 41 N 8 1 2693 SW 16 28109 P 03/31-09 52 0 53 37 NE 9 9 3 1 SW62 3646 SW 10 32081 P 03/31-10 52 0 57 32 NE 9 1 4974 SW 13 62384 G 03/31-11 52 0 60 30 E 9 1 6303 SW 16 92687 G 03/31-12 53 0 62 27 SE 9 9 2 1 SW46 7632 S 18 122990 V 03/31-13 53 0 65 26 SE 9 1 8638 S 21 156575 E 03/31-14 53 0 66 24 SE 8 1 9643 SW 22 190160 E 03/31-15 53 0 67 24 SE 8 8 2 1 SW49 10649 SW 24 223744 E 03/31-16 53 0 66 24 E 9 1 8982 SW 22 175511 E 03/31-17 53 0 65 25 E 10 1 7315 S 18 127278 V 03/31-18 76 0 61 29 NE 10 10 2 1 SW39 5648 S 16 79044 G 03/31-19 76 0 59 31 NE 9 1 4161 S 13 54220 F 03/31-20 76 0 55 36 N 8 1 2675 S 8 29395 P 03/31-21 76 0 50 43 NW 7 7 2 1 SW28 1188 SE 5 4571 P 03/31-22 76 0 47 48 NW 7 1 881 S 5 3450 P 03/31-23 76 0 45 53 NW 7 1 575 W 5 2328 P 04/01-00 76 2 43 56 NW 7 7 3 1 SW39 268 NW 5 1207 P 04/01-01 76 2 42 59 NW 7 1 243 W 8 1499 P 04/01-02 76 2 41 62 W 8 1 218 W 10 1790 P 04/01-03 76 2 40 64 W 8 8 2 1 SW46 194 W 13 2082 P 04/01-04 76 2 39 65 W 8 1 230 W 13 2446 P 04/01-05 76 2 39 64 W 7 1 266 W 13 2810 P 04/01-06 62 10 40 63 W 7 7 2 1 SW36 302 W 13 3175 P 04/01-07 62 10 41 52 SW 6 1 719 SW 10 5699 P 04/01-08 62 10 41 51 S 5 1 1136 SW 9 8223 P 04/01-09 62 10 44 46 E 3 3 2 1 SW39 1554 S 8 10748 P 04/01-10 62 10 47 41 E 3 1 2687 S 9 22820 P 04/01-11 62 10 50 37 E 3 1 3821 S 10 34892 P 04/01-12 62 10 52 34 E 5 5 2 1 SW45 4954 S 10 46964 F 04/01-13 62 10 54 31 SE 5 1 4996 S 13 55573 F 04/01-14 62 10 56 30 SW 3 1 5037 S 15 64182 G 04/01-15 62 10 56 29 W 3 3 3 1 S32 5079 S 16 72791 G 04/01-16 62 10 56 28 W 8 1 5021 S 17 75070 G 04/01-17 62 10 55 29 W 10 1 4964 SW 18 77349 G 04/01-18 66 10 52 32 W 14 14 3 1 S23 4906 W 18 79628 G 04/01-19 66 10 50 34 W 13 1 3960 W 18 62868 G 04/01-20 66 10 47 40 W 12 1 3014 W 17 46107 F 04/01-21 66 10 43 46 W 9 9 3 1 S13 2068 W 16 29347 P 04/01-22 66 10 40 52 W 9 1 2937 W 14 33151 P 04/01-23 66 10 39 56 NW 6 1 3806 W 13 36955 P 04/02-00 66 10 37 59 NW 2 2 2 1 SW 7 4675 W 10 40760 F 04/02-01 66 10 36 61 N 2 1 4042 W 10 35281 P 04/02-02 66 10 35 63 N 3 1 3409 NW 10 29802 P 04/02-03 66 10 35 63 NE 3 3 3 1 W16 2777 NW 10 24323 P 04/02-04 66 10 34 63 N 5 1 3416 NW 15 51895 F 04/02-05 66 10 34 62 N 6 1 4056 NW 21 79466 G 04/02-06 70 10 35 60 N 7 7 2 1 NW29 4696 NW 26 107038 V 04/02-07 70 10 35 60 N 9 1 4803 NW 28 116847 V 04/02-08 70 10 35 61 N 12 1 4909 N 30 126655 V 04/02-09 70 10 37 57 N 14 14 2 1 NW33 5016 N 31 136463 V 04/02-10 70 10 40 54 N 15 1 6592 N 30 172174 E 04/02-11 70 10 41 51 N 15 1 8168 N 30 207886 E 04/02-12 55 10 43 48 N 15 23 3 1 NW29 9744 N 29 243597 E 04/02-13 55 10 44 46 N 13 1 10330 NW 26 234289 E 04/02-14 55 10 45 44 N 12 1 10916 NW 24 224982 E 04/02-15 55 10 45 43 N 10 10 2 1 NW30 11502 NW 22 215674 E 04/02-16 55 10 45 42 N 8 1 10631 NW 18 170627 E 04/02-17 55 10 45 42 E 5 1 9759 W 14 125581 V 04/02-18 40 0 43 46 SE 2 2 2 1 W30 8888 W 10 80534 G 04/02-19 40 0 42 49 SE 3 1 7485 W 12 74093 G 04/02-20 40 0 40 55 S 3 1 6083 W 14 67651 G 04/02-21 40 0 38 62 SW 5 5 2 1 W31 4680 W 15 61210 G 04/02-22 40 0 36 67 SW 6 1 4098 W 17 58242 F 04/02-23 40 0 35 70 W 7 1 3515 W 18 55274 F 04/03-00 13 0 34 72 W 8 8 2 1 NW29 2933 W 21 52307 F 04/03-01 13 0 33 72 W 9 1 2311 W 21 41424 F 04/03-02 13 0 33 71 W 10 1 1689 W 21 30540 P 04/03-03 13 0 32 69 W 10 10 2 1 W35 1067 W 21 19657 P 04/03-04 13 0 32 67 W 9 1 1090 W 20 18700 P 04/03-05 13 0 32 64 W 8 1 1113 W 18 17743 P 04/03-06 30 0 33 61 W 7 7 2 1 W31 1136 W 17 16786 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 $$ WFO BOULDER REQUESTED BY...BOULDER COUNTY SHERIFF S OFFICE REASON FOR REQUEST...PRESCRIBED .TAG 20100331.CIRCL.01/BOU