FNUS75 KBOU 182358 FWSBOU SPOT FORECAST FOR GRAND LAKE BOUNDARY PILES...NPS NATIONAL WEATHER SERVICE DENVER CO 600 PM MDT MON APR 18 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SHOWERY WEATHER WILL CONTINUE INTO TUESDAY...WITH SOME DRYING TUESDAY AFTERNOON. THE MAIN PERIOD OF SHOWERS IS EXPECTED TO BE OVERNIGHT TONIGHT. THE ATMOSPHERE WILL BE SOMEWHAT UNSTABLE WITH WINDS ALOFT MIXING DOWN IN THE AFTERNOON...THOUGH YOUR LOCATION APPEARS TO BE BLOCKED FROM THE STRONGEST WINDS. THIS WILL PROVIDE GENERALLY FAIR OR BETTER SMOKE DISPERSION DURING THE DAYTIME DESPITE THE CLOUD COVER. PLEASE NOTE THAT THE WINDS IN THE TABLE BELOW LOOKED TOO STRONG FOR THE LOW LEVELS AROUND THE BURN SITE...I REDUCED THEM FOR THE TEXT FORECAST. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........CLOUDY. RAIN SHOWERS LIKELY UNTIL 2100...THEN SNOW SHOWERS UNTIL 2400...THEN SNOW SHOWERS LIKELY. MIN TEMPERATURE.....26-30. MAX HUMIDITY........90-100%. 20-FOOT WINDS.......WEST WINDS 6-12 MPH UNTIL 0300...THEN 2-6 MPH. TRANSPORT WINDS.....WEST 30 MPH DECREASING TO 15 MPH. MIXING HEIGHT.......2000-3000 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 2100...THEN FAIR UNTIL 2400...THEN POOR. HAINES INDEX........2 VERY LOW. .TUESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY UNTIL 1200...THEN CHANCE OF SNOW SHOWERS. MAX TEMPERATURE.....38-42. MIN HUMIDITY........45-55%. 20-FOOT WINDS.......WEST 4-10 MPH UNTIL 1200...THEN WEST WINDS 8-16 MPH WITH GUSTS TO 25 MPH. TRANSPORT WINDS.....WEST 20 MPH UNTIL 1200...THEN 30 MPH. MIXING HEIGHT.......3000 FT AGL UNTIL 1000 THEN RISING TO 8000 FT AGL BY 1300. SMOKE DISPERSAL.....FAIR UNTIL 1200...THEN VERY GOOD. EXCELLENT AFTER 1400. HAINES INDEX........2 VERY LOW. .TUESDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 2400. SLIGHT CHANCE OF SNOW SHOWERS. MIN TEMPERATURE.....20-24. MAX HUMIDITY........75-85%. 20-FOOT WINDS.......BREEZY. WEST WINDS 8-16 MPH WITH GUSTS TO 25 MPH UNTIL 2100...THEN 4-10 MPH. TRANSPORT WINDS.....WEST 30 MPH UNTIL 2400...THEN 20 MPH. MIXING HEIGHT.......LOWERING TO 4000 FT AGL BY 2100 AND 2000 FT AGL AFTER 0300. SMOKE DISPERSAL.....EXCELLENT UNTIL 2000. GOOD AFTER 2400. HAINES INDEX........2 VERY LOW. .WEDNESDAY... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. SLIGHT CHANCE OF RAIN SHOWERS AFTER 1200. MAX TEMPERATURE.....42-46. MIN HUMIDITY........35-45%. 20-FOOT WINDS.......SOUTHWEST WINDS 4-10 MPH. TRANSPORT WINDS.....WEST 20 MPH BECOMING SOUTHWEST 25 MPH. MIXING HEIGHT.......RISING TO 4000 FT AGL BY 1000 AND 6000 FT AGL BY 1400. SMOKE DISPERSAL.....GOOD UNTIL 1000...THEN VERY GOOD. EXCELLENT AFTER 1400. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 1200... THEN CHANCE OF RAIN SHOWERS UNTIL 1800...THEN SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS. LOWS IN THE MID 20S. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO 20 MPH. .FRIDAY...MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS. SLIGHT CHANCE OF RAIN SHOWERS AFTER 1200. LOWS IN THE MID 20S. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS AROUND 8 MPH. .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. SLIGHT CHANCE OF RAIN SHOWERS AFTER 1200. LOWS IN THE MID 20S. HIGHS IN THE MID 40S. SOUTHWEST WINDS AROUND 5 MPH. .SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS. SLIGHT CHANCE OF RAIN SHOWERS AFTER 1200. LOWS IN THE LOWER 20S. HIGHS IN THE MID 40S. SOUTHWEST WINDS AROUND 6 MPH. FIRE WEATHER TABLE FOR GRAND LAKE BOUNDARY PILES. +++ 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 04/18-17 98 47 40 73 W 16 3 4064 W 38 134974 V 04/18-18 99 66 39 75 W 16 24 2 3 W55 3811 W 37 122699 V 04/18-19 99 66 38 79 W 16 3 3362 W 33 101295 V 04/18-20 99 66 36 83 W 15 3 2913 W 31 79890 G 04/18-21 99 83 35 88 W 14 21 2 3 W41 2465 W 28 58485 F 04/18-22 99 83 33 92 W 13 3 2321 W 23 47912 F 04/18-23 99 83 32 95 W 10 3 2176 W 20 37339 P 04/19-00 88 63 31 96 W 9 14 2 1 W45 2032 W 15 26766 P 04/19-01 88 63 31 96 W 8 1 2289 W 16 33496 P 04/19-02 88 63 30 93 W 8 1 2546 W 18 40225 F 04/19-03 88 63 30 90 W 8 8 2 1 W44 2803 W 20 46955 F 04/19-04 88 63 29 88 W 8 1 3399 W 23 69684 G 04/19-05 88 63 29 86 W 8 1 3995 W 25 92414 G 04/19-06 89 67 29 84 W 8 8 2 1 W48 4590 W 29 115143 V 04/19-07 89 67 29 81 W 9 1 4816 W 29 119513 V 04/19-08 89 67 30 76 W 10 1 5041 W 29 123883 V 04/19-09 89 67 31 71 W 12 17 2 1 W37 5267 W 28 128253 V 04/19-10 89 67 33 65 W 13 1 6000 W 31 165872 E 04/19-11 89 67 35 59 W 15 1 6733 W 35 203491 E 04/19-12 83 54 38 53 W 16 24 2 1 W47 7467 W 37 241110 E 04/19-13 83 54 39 51 W 17 1 8222 W 40 289130 E 04/19-14 83 54 39 51 W 18 1 8978 W 43 337149 E 04/19-15 83 54 39 50 W 20 30 2 1 W64 9733 W 46 385169 E 04/19-16 83 54 40 48 W 22 1 9661 W 47 394274 E 04/19-17 83 54 40 46 W 24 1 9588 W 48 403379 E 04/19-18 83 29 39 46 W 25 38 2 1 W67 9515 W 49 412484 E 04/19-19 83 29 37 48 W 23 1 8182 W 45 332503 E 04/19-20 83 29 35 52 W 20 1 6849 W 40 252521 E 04/19-21 83 29 31 59 W 15 23 2 1 W81 5517 W 36 172539 E 04/19-22 83 29 30 61 W 13 1 5441 W 36 168024 E 04/19-23 83 29 28 66 W 10 1 5365 W 35 163509 E 04/20-00 65 29 27 68 W 9 14 2 1 W83 5290 W 35 158994 E 04/20-01 65 29 27 67 W 8 1 5191 W 35 155838 E 04/20-02 65 29 26 67 W 8 1 5091 W 35 152682 E 04/20-03 65 29 24 70 W 8 8 2 1 W81 4992 W 35 149527 V 04/20-04 65 29 23 73 W 8 1 4488 W 31 124493 V 04/20-05 65 29 22 73 SW 8 1 3985 W 28 99460 G 04/20-06 70 23 23 71 SW 8 8 2 1 W74 3481 W 24 74426 G 04/20-07 70 23 23 73 SW 8 1 3596 W 24 75935 G 04/20-08 70 23 23 74 SW 9 1 3711 W 24 77443 G 04/20-09 70 23 27 67 SW 9 14 2 1 W66 3826 W 24 78951 G 04/20-10 70 23 33 53 W 9 1 4617 W 26 107785 V 04/20-11 70 23 37 48 W 10 1 5409 W 29 136620 V 04/20-12 70 23 40 45 W 10 16 2 1 W62 6200 W 31 165455 E 04/20-13 70 23 42 42 W 10 1 6198 W 31 166818 E 04/20-14 70 23 42 41 W 9 1 6196 W 31 168181 E 04/20-15 70 23 43 40 SW 9 14 2 1 W55 6194 W 31 169544 E 04/20-16 70 23 44 39 SW 9 1 5935 SW 30 156482 E 04/20-17 70 23 44 38 SW 8 1 5676 SW 29 143420 V 04/20-18 88 48 42 41 SW 8 8 2 1 W59 5417 SW 28 130359 V 04/20-19 88 48 41 44 SW 8 1 4033 SW 22 91157 G 04/20-20 88 48 38 51 SW 7 1 2649 S 17 51955 F 04/20-21 88 48 34 61 SW 7 7 2 1 W58 1265 S 12 12754 P 04/20-22 88 48 33 66 SW 7 1 956 S 12 9627 P 04/20-23 88 48 31 74 SW 6 1 647 SW 12 6499 P 04/21-00 88 48 30 80 SW 6 6 2 1 SW48 339 SW 12 3372 P 04/21-01 88 48 30 82 SW 6 1 322 SW 12 3226 P 04/21-02 88 48 29 85 SW 6 1 306 SW 12 3081 P 04/21-03 88 48 27 91 SW 7 7 2 1 SW52 289 SW 12 2935 P 04/21-04 88 48 25 98 SW 8 1 288 SW 12 2994 P 04/21-05 88 48 25 100 SW 8 1 286 SW 13 3053 P 04/21-06 72 29 26 97 W 9 14 2 1 W62 284 SW 13 3111 P 04/21-07 72 29 26 97 W 10 1 497 SW 16 7839 P 04/21-08 72 29 26 95 W 10 1 710 SW 18 12566 P 04/21-09 72 29 30 82 W 12 17 2 1 W54 922 SW 22 17293 P 04/21-10 72 29 36 62 W 12 1 2480 SW 25 65255 G 04/21-11 72 29 40 53 W 13 1 4037 SW 29 113216 V 04/21-12 74 29 43 48 W 13 20 2 1 SW46 5594 SW 33 161178 E 04/21-13 74 29 45 44 W 13 1 6193 SW 35 187338 E 04/21-14 74 29 46 42 W 14 1 6791 SW 36 213499 E 04/21-15 74 29 46 42 W 14 21 2 1 SW54 7389 SW 37 239659 E 04/21-16 74 29 47 40 W 14 1 7186 SW 37 230757 E 04/21-17 74 29 47 39 W 14 1 6983 SW 37 221855 E 04/21-18 88 28 46 42 W 13 20 2 1 SW54 6780 SW 36 212953 E 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...GIMMESTAD REQUESTED BY...GERALD TUZON REASON FOR REQUEST...PRESCRIBED .TAG 20110419.GRAND.01/BOU