FNUS75 KBOU 251213 FWSBOU SPOT FORECAST FOR GRAND LAKE PILES...USFS NATIONAL WEATHER SERVICE DENVER CO 604 AM MDT WED MAR 25 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A WEAK UPPER LEVEL DISTURBANCE WILL CONTINUE TO MOVE ACROSS THE REGION THIS MORNING WITH SCATTERED SNOW SHOWERS. A STRONGER STORM WILL DEVELOP NEAR THE FOUR CORNERS REGION BY THURSDAY EVENING. SNOW WILL SPREAD AHEAD OF THE STORM TONGIHT AND CONTINUE THROUGH THURSDAY NIGHT. SNOW ACCUMLATIONS BY LATE THURSDAY NIGHT WILL BE 3 TO 6 INCHES. SNOW WILL BE ENDING FRIDAY MORNING. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SNOW SHOWERS. MAX TEMPERATURE.....35. MIN HUMIDITY........46%. 20-FOOT WINDS.......WEST 8-15 MPH. TRANSPORT WINDS.....WEST 24-28 MPH UNTIL 1200...THEN 29-40 MPH. MIXING HEIGHT.......7800-8800 FT AGL. SMOKE DISPERSAL.....VERY GOOD UNTIL 1000. EXCELLENT AFTER 1400. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........CLOUDY. SNOW LIKELY UNTIL 2400...THEN SNOW. MIN TEMPERATURE.....17. MAX HUMIDITY........90%. 20-FOOT WINDS.......SOUTHWEST 9-15 MPH. TRANSPORT WINDS.....WEST 25-36 MPH UNTIL 2400...THEN SOUTHWEST 12-20 MPH. MIXING HEIGHT.......4800-5800 FT AGL UNTIL 0100...THEN 3000-4000 FT AGL. SMOKE DISPERSAL.....EXCELLENT UNTIL 1900. POOR AFTER 0300. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .THURSDAY... SKY/WEATHER.........CLOUDY. CHANCE OF SNOW UNTIL 1100...THEN SNOW LIKELY. MAX TEMPERATURE.....25. MIN HUMIDITY........76%. 20-FOOT WINDS.......EAST 12-19 MPH. TRANSPORT WINDS.....SOUTHEAST 8-16 MPH UNTIL 1200...THEN EAST 20-24 MPH. MIXING HEIGHT.......4200-5200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1000. GOOD AFTER 1100. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...SNOW LIKELY UNTIL 0600...THEN SLIGHT CHANCE OF SNOW UNTIL 1200. LOWS AROUND 4. HIGHS IN THE UPPER 20S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...PARTLY CLOUDY. LOWS AROUND 14. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...MOSTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE LOWER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR GRAND LAKE PILES. +++ 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 03/25-06 73 43 19 70 W 6 6 2 1 W33 4973 W 25 110898 V 03/25-07 73 43 19 70 W 7 1 5094 W 25 112932 V 03/25-08 73 43 21 68 W 7 1 5215 W 25 114965 V 03/25-09 73 43 23 63 W 8 8 2 1 NW37 5336 W 25 116999 V 03/25-10 73 43 26 59 W 9 1 6064 W 25 136110 V 03/25-11 73 43 29 56 W 9 1 6793 W 26 155220 E 03/25-12 79 46 31 54 W 10 10 2 1 NW29 7521 W 26 174331 E 03/25-13 79 46 32 50 W 12 1 8151 W 29 208560 E 03/25-14 79 46 33 48 W 14 1 8781 W 31 242789 E 03/25-15 79 46 34 46 W 15 24 2 1 W35 9410 W 33 277018 E 03/25-16 79 46 34 46 W 15 1 8480 W 37 263418 E 03/25-17 79 46 33 49 W 15 1 7549 W 39 249817 E 03/25-18 94 59 31 53 W 15 24 2 1 W54 6619 W 41 236216 E 03/25-19 94 59 29 57 W 10 1 6153 W 35 191668 E 03/25-20 94 59 27 63 SW 12 1 5687 W 29 147120 V 03/25-21 94 59 24 71 SW 12 12 2 1 W52 5221 W 23 102572 V 03/25-22 94 59 23 79 SW 12 1 5022 W 22 97578 G 03/25-23 94 59 21 85 SW 12 1 4823 W 22 92584 G 03/26-00 100 76 20 87 SW 12 12 2 1 W41 4623 W 22 87590 G 03/26-01 100 76 19 90 SW 12 1 4180 W 17 67736 G 03/26-02 100 76 19 90 SW 12 1 3736 SW 14 47883 F 03/26-03 100 76 18 89 SW 9 9 2 1 W36 3292 SW 10 28029 P 03/26-04 100 76 18 88 S 7 1 3064 SW 10 26119 P 03/26-05 100 76 18 86 S 5 1 2837 S 10 24208 P 03/26-06 100 50 18 85 S 2 2 2 1 W35 2609 S 10 22298 P 03/26-07 100 50 19 82 SE 3 1 4815 SW 9 37774 P 03/26-08 100 50 18 83 SE 6 1 4833 S 9 37540 P 03/26-09 100 50 20 83 E 7 7 2 1 SW25 4851 SE 9 37306 P 03/26-10 100 50 21 84 E 9 1 4942 SE 13 55268 F 03/26-11 100 60 22 83 E 12 1 5033 E 16 73229 G 03/26-12 100 60 23 80 E 14 14 2 1 SW18 5124 E 21 91190 G 03/26-13 100 60 24 78 E 15 1 5150 E 22 98494 G 03/26-14 100 60 24 77 E 16 1 5175 E 23 105798 V 03/26-15 100 60 24 76 NE 17 17 2 1 S23 5201 E 25 113102 V 03/26-16 100 60 24 78 NE 15 1 5168 E 23 102107 V 03/26-17 100 60 23 80 NE 14 1 5134 E 21 91112 G 03/26-18 100 60 20 89 NE 12 12 2 1 S21 5101 E 18 80117 G 03/26-19 100 60 19 96 NE 9 1 4499 E 16 64951 G 03/26-20 100 60 16 100 NE 7 1 3897 NE 14 49785 F 03/26-21 100 60 13 100 NE 6 6 2 1 S10 3295 NE 13 34620 P 03/26-22 100 60 11 100 NE 5 1 2716 NE 9 25288 P 03/26-23 100 60 9 100 NE 3 1 2138 NE 7 15956 P 03/27-00 100 60 8 100 NE 2 2 2 1 S 7 1559 NE 5 6624 P 03/27-01 100 60 7 100 NE 3 1 1418 NE 6 6522 P 03/27-02 79 60 6 100 N 3 1 1276 N 6 6421 P 03/27-03 79 10 6 100 N 5 5 2 1 CALM 1135 N 7 6320 P 03/27-04 79 10 5 100 N 5 1 1107 N 6 5910 P 03/27-05 79 10 5 100 N 5 1 1079 N 6 5500 P 03/27-06 79 10 6 100 N 3 3 2 1 W 6 1051 NW 6 5090 P 03/27-07 79 10 6 100 N 3 1 1499 NW 7 10475 P 03/27-08 49 10 9 98 NW 3 1 1948 NW 9 15860 P 03/27-09 49 0 12 88 W 3 3 3 1 W 9 2396 NW 10 21244 P 03/27-10 49 0 16 94 W 5 1 3250 NW 12 35028 P 03/27-11 49 0 20 93 W 6 1 4105 NW 13 48811 F 03/27-12 49 0 23 87 W 7 7 2 1 NW15 4959 NW 15 62595 G 03/27-13 49 0 25 78 W 8 1 5069 NW 15 67756 G 03/27-14 49 0 27 72 W 8 1 5180 NW 16 72918 G 03/27-15 49 0 28 68 W 9 9 2 1 N21 5290 NW 17 78079 G 03/27-16 64 0 28 67 W 9 1 5162 NW 18 79826 G 03/27-17 64 0 27 69 W 9 1 5033 NW 18 81573 G 03/27-18 64 0 26 70 W 9 9 2 1 N43 4905 NW 20 83320 G 03/27-19 64 0 24 68 W 8 1 4192 NW 18 68020 G 03/27-20 64 0 22 67 W 6 1 3478 NW 17 52720 F 03/27-21 64 0 20 69 W 5 5 3 1 N48 2764 NW 16 37420 P 03/27-22 64 0 18 71 W 5 1 2446 NW 14 30729 P 03/27-23 64 0 17 71 W 5 1 2128 W 13 24039 P 03/28-00 64 0 17 72 W 3 3 2 1 N43 1809 W 12 17348 P 03/28-01 64 0 16 74 W 3 1 1693 W 10 15287 P 03/28-02 64 0 15 76 W 3 1 1576 W 9 13226 P 03/28-03 44 0 15 77 W 5 5 2 1 N41 1460 W 9 11166 P 03/28-04 44 0 15 76 W 6 1 1446 W 9 11304 P 03/28-05 44 0 15 75 W 7 1 1432 W 9 11443 P 03/28-06 44 0 15 76 W 8 8 2 1 NW45 1417 W 9 11581 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...ENTREKIN REQUESTED BY...DOUG WATRY JAMES CHAMP REASON FOR REQUEST...PRESCRIBED .TAG 20090325.GRAND.01/BOU