FNUS75 KBOU 211430 FWSBOU SPOT FORECAST FOR TRIANGLE PRESCRIBED FIRE...OTHER NATIONAL WEATHER SERVICE DENVER CO 830 AM MDT MON MAR 21 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT UNTIL 10 PM MDT THIS EVENING... ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH TUESDAY EVENING... .DISCUSSION...AN UPPER LEVEL TROUGH WILL MOVE OVER THE STATE TONIGHT WITH LITTLE PRECIPITATION EXPECTED ON THE PLAINS. MODERATE TO STRONG WESTERLY FLOW ALOFT WILL SPREAD ACROSS THE AREA THROUGH THE DAY. DRY HUMIDITIES ARE EXPECTED AGAIN EVEN THOUGH TEMPERATURES WILL BE SOME 10 TO 15 DEGREES COOLER THAN THIS AFTERNOON. GUSTY WINDS ARE ALSO EXPECTED AS THE WESTERLY WINDS MIX DOWN TO THE SURFACE. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 1200...THEN MOSTLY CLOUDY(50-60%). MAX TEMPERATURE.....70-74. MIN HUMIDITY........6-10%. 20-FOOT WINDS.......WEST WINDS 6-10 MPH UNTIL 0900...THEN UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1200...THEN SOUTH 10-16 MPH UNTIL 1500...THEN WEST 16-22 MPH WITH GUSTS TO 30 MPH. TRANSPORT WINDS.....SOUTHWEST 8-16 MPH UNTIL 1200...THEN 24-30 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1000. 10200-11200 FT AGL AFTER 1400. SMOKE DISPERSAL.....POOR UNTIL 1000. EXCELLENT AFTER 1500. HAINES INDEX........4 LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400...THEN PARTLY CLOUDY(35-45%). MIN TEMPERATURE.....32-36. MAX HUMIDITY........30-38%. 20-FOOT WINDS.......WEST WINDS 14-22 MPH. TRANSPORT WINDS.....SOUTHWEST 30-40 MPH. MIXING HEIGHT.......9400 FT AGL UNTIL 1900. 1500-2500 FT AGL AFTER 2200. SMOKE DISPERSAL.....EXCELLENT UNTIL 2000...THEN VERY GOOD UNTIL 2200...THEN FAIR UNTIL 0100...THEN FAIR. HAINES INDEX........3 VERY LOW. .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 1200...THEN PARTLY CLOUDY. MAX TEMPERATURE.....56-62. MIN HUMIDITY........10-15%. 20-FOOT WINDS.......WINDY. WEST WINDS 14-24 MPH WITH GUSTS TO 35 MPH UNTIL 1500...THEN 24-30 MPH WITH GUSTS TO 40 MPH. TRANSPORT WINDS.....WEST 32-40 MPH. MIXING HEIGHT.......3000-4000 FT AGL UNTIL 1000...THEN RISING TO 6500-7000 FT AGL UNTIL 1500...THEN 12000-13000 FT AGL AFTER 1400. SMOKE DISPERSAL.....VERY GOOD UNTIL 1000...THEN EXCELLENT. HAINES INDEX........3 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...MOSTLY CLEAR. LOWS AROUND 30. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 10 MPH WITH GUSTS TO 30 MPH. .THURSDAY...PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 7 MPH WITH GUSTS TO 20 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF RAIN AFTER 1800. LOWS AROUND 30. HIGHS IN THE LOWER 60S. WEST WINDS AROUND 6 MPH. FIRE WEATHER TABLE FOR TRIANGLE PRESCRIBED FIRE. +++ 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 03/21-08 37 0 40 19 W 5 1 359 S 7 2120 P 03/21-09 37 0 44 17 SW 3 3 4 1 SW48 435 S 7 2527 P 03/21-10 37 0 50 13 SW 3 1 2130 S 12 35348 P 03/21-11 37 0 58 10 S 3 1 3826 S 16 68169 G 03/21-12 51 0 64 9 S 6 6 3 1 SW41 5522 S 21 100990 V 03/21-13 51 0 68 8 S 10 1 7544 SW 23 161030 E 03/21-14 51 0 70 7 SW 16 1 9566 SW 25 221071 E 03/21-15 51 0 71 7 W 20 30 3 1 SW40 11588 SW 28 281112 E 03/21-16 51 0 71 8 W 20 1 10870 SW 30 276454 E 03/21-17 51 0 70 10 W 17 1 10153 SW 31 271797 E 03/21-18 68 6 68 12 W 16 24 2 1 SW46 9435 SW 32 267139 E 03/21-19 68 6 65 14 W 16 1 7544 SW 33 214788 E 03/21-20 68 6 60 17 W 17 1 5653 SW 33 162437 E 03/21-21 68 6 55 20 W 17 26 3 1 SW43 3762 SW 33 110086 V 03/21-22 68 6 52 23 W 15 1 2962 SW 32 84738 G 03/21-23 68 6 50 25 W 12 1 2161 SW 30 59389 F 03/22-00 38 6 48 27 W 10 16 2 1 SW64 1361 SW 29 34040 P 03/22-01 38 6 46 30 W 12 1 1664 SW 31 45087 F 03/22-02 38 6 44 32 W 14 1 1966 W 32 56133 F 03/22-03 38 6 43 33 W 17 26 2 1 SW64 2269 W 35 67180 G 03/22-04 38 6 41 34 W 20 1 2541 W 37 82150 G 03/22-05 38 6 40 33 W 22 1 2812 W 39 97120 G 03/22-06 59 3 39 33 NW 23 35 3 1 SW55 3083 W 41 112090 V 03/22-07 59 3 39 32 NW 22 1 3498 W 39 116827 V 03/22-08 59 3 39 32 NW 18 1 3913 W 37 121565 V 03/22-09 59 3 39 31 NW 14 21 3 1 SW47 4328 W 33 126303 V 03/22-10 59 3 43 27 NW 14 1 6651 W 32 190023 E 03/22-11 59 3 46 23 W 16 1 8100 W 33 237380 E 03/22-12 31 3 49 20 W 18 28 2 1 W37 9548 W 35 284738 E 03/22-13 31 3 52 17 W 21 1 10809 W 35 324991 E 03/22-14 31 3 55 15 W 24 1 12070 W 35 365244 E 03/22-15 31 3 57 13 W 26 40 2 1 W32 13331 W 35 405496 E 03/22-16 31 3 57 12 W 28 1 13157 W 35 388830 E 03/22-17 31 3 56 12 W 28 1 12983 W 33 372163 E 03/22-18 21 0 55 13 W 26 40 2 1 W22 12809 W 32 355496 E 03/22-19 21 0 50 15 W 23 1 10170 W 33 286253 E 03/22-20 21 0 45 19 W 20 1 7531 W 33 217009 E 03/22-21 21 0 42 22 W 17 26 4 1 W 7 4892 W 35 147766 V 03/22-22 21 0 38 27 W 18 1 4313 W 36 131424 V 03/22-23 21 0 37 30 W 21 1 3733 W 36 115083 V 03/23-00 21 0 35 33 W 22 33 4 1 SW10 3154 W 36 98742 G 03/23-01 21 0 34 35 W 21 1 2991 W 37 95271 G 03/23-02 21 0 33 39 W 18 1 2827 W 38 91800 G 03/23-03 21 0 32 40 W 16 24 2 1 W17 2664 W 38 88329 G 03/23-04 21 0 32 42 W 14 1 2712 W 37 87557 G 03/23-05 21 0 31 44 W 13 1 2760 W 36 86785 G 03/23-06 22 0 32 44 W 12 17 3 1 NW25 2808 W 36 86012 G 03/23-07 22 0 30 49 W 10 1 3044 W 33 86293 G 03/23-08 22 0 30 49 W 10 1 3279 W 31 86574 G 03/23-09 22 0 34 42 W 10 16 3 1 W17 3514 W 29 86855 G 03/23-10 22 0 38 37 W 12 1 4543 W 26 99045 G 03/23-11 22 0 43 32 W 12 1 5572 W 24 111235 V 03/23-12 22 0 47 27 W 13 20 2 1 W18 6601 W 22 123425 V 03/23-13 22 0 51 21 W 13 1 7825 W 21 143776 V 03/23-14 22 0 54 16 W 12 1 9049 W 21 164127 E 03/23-15 22 0 57 12 W 10 16 2 1 W25 10273 W 21 184479 E 03/23-16 22 0 58 11 W 8 1 9788 W 18 159847 E 03/23-17 22 0 57 10 W 5 1 9303 W 16 135215 V 03/23-18 30 5 55 11 NW 2 2 2 1 W37 8818 W 15 110583 V 03/23-19 30 5 50 14 NW 2 1 6517 SW 12 76301 G 03/23-20 30 5 45 19 NW 3 1 4215 S 8 42019 F 03/23-21 30 5 41 24 W 5 5 2 1 SW29 1913 SE 5 7736 P 03/23-22 30 5 37 32 W 5 1 1554 SE 5 5898 P 03/23-23 30 5 35 37 W 3 1 1195 E 3 4059 P 03/24-00 30 5 34 42 W 3 3 2 1 S29 836 E 3 2220 P 03/24-01 30 5 33 46 NW 3 1 872 E 3 2215 P 03/24-02 30 5 31 52 NW 2 1 908 NE 2 2209 P 03/24-03 30 5 30 54 NW 2 2 2 1 SW36 944 NE 2 2204 P 03/24-04 30 5 30 56 NW 2 1 942 N 3 2699 P 03/24-05 30 5 29 59 NW 2 1 939 NW 3 3194 P 03/24-06 51 3 29 58 NW 2 2 2 1 SW37 936 NW 5 3689 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 $$ DANKERS...WFO BOULDER REQUESTED BY...ROBERT O DONNELL REASON FOR REQUEST...PRESCRIBED .TAG 20110322.TRIAN.01/BOU