FNUS75 KBOU 281304 FWSBOU SPOT FORECAST FOR LAGERMAN RESERVOIR...BOULDER COUNTY NATIONAL WEATHER SERVICE DENVER CO 700 AM MDT WED APR 28 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... AN STORM SYSTEM OVER THE NORTHWEST WILL MOVE SLOWLY INTO THE NORTHERN ROCKIES BY THURSDAY. SOUTHWEST WINDS WILL INCREASE AHEAD OF THE STORM TODAY...WITH WARM AND DRY AIR. A COLD FRONT WILL MOVE THROUGH AROUND MIDNIGHT TONIGHT FOLLOWED BY A CHANCE OF SHOWERS ON THURSDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........MOSTLY CLOUDY(50-60%) UNTIL 1200...THEN PARTLY CLOUDY UNTIL 1500...THEN MOSTLY SUNNY. MAX TEMPERATURE.....77-80. MIN HUMIDITY........10-15%. WIND (20 FT)........SOUTHWEST WINDS 13-23 MPH. GUSTS UP TO 30 MPH IN THE LATE MORNING AND AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 30-40 MPH. MIXING HEIGHT.......3000 FT AGL RISING TO 11000 FT AGL BY 1400. SMOKE DISPERSAL.....GOOD...BECOMING EXCELLENT BY 1100. HAINES INDEX........5 MODERATE. .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 2400...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 2400. MIN TEMPERATURE.....36-40. MAX HUMIDITY........70-80%. WIND (20 FT)........BREEZY. WEST WINDS 15-25 MPH WITH GUSTS TO AROUND 35 MPH UNTIL 2400...THEN SOUTHWEST 8-12 MPH UNTIL 0200...THEN NORTH 4-10 MPH. TRANSPORT WINDS.....SOUTHWEST 20-30 MPH UNTIL 2400...THEN NORTHEAST AROUND 12 MPH. MIXING HEIGHT.......LOWERING TO 3000 FT AGL BY 2000 AND 1000 FT AGL BY 2300. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2100. HAINES INDEX........3 VERY LOW. .THURSDAY... SKY/WEATHER.........CLOUDY. CHANCE OF RAIN SHOWERS AND ISOLATED THUNDERSTORMS. CHANCE OF SNOW SHOWERS AFTER 1200. MAX TEMPERATURE.....49-53. MIN HUMIDITY........35-45%. WIND (20 FT)........SOUTHEAST 4-10 MPH UNTIL 1000...THEN NORTHWEST 11-17 MPH. TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1000...THEN WEST 20 MPH. MIXING HEIGHT.......RISING TO 3000 FT AGL BY 1000...AND 8000 FT AGL BY 1400. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN GOOD. VERY GOOD AFTER 1300. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS UNTIL 0600...THEN SLIGHT CHANCE OF RAIN SHOWERS AFTER 1200. LOWS IN THE LOWER 30S. HIGHS IN THE LOWER 50S. WEST WINDS AROUND 13 MPH WITH GUSTS TO AROUND 30 MPH. .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS UNTIL 1200...THEN CHANCE OF RAIN SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SUNDAY...MOSTLY CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW SHOWERS UNTIL 1200...THEN SLIGHT CHANCE OF RAIN. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR LAGERMAN RESERVOIR. +++ 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 04/28-06 60 0 51 40 W 12 17 5 1 SW44 435 W 30 11224 P 04/28-07 60 0 49 44 W 13 1 616 W 31 17260 P 04/28-08 60 0 53 39 W 13 1 797 W 33 23295 P 04/28-09 60 0 58 33 W 14 21 5 1 SW54 978 W 35 29331 P 04/28-10 60 0 63 27 W 16 1 2378 SW 36 74697 G 04/28-11 60 0 68 22 W 17 1 3777 SW 36 120063 V 04/28-12 30 0 72 19 SW 18 28 5 1 SW56 5177 SW 37 165430 E 04/28-13 30 0 74 17 SW 18 1 7108 SW 39 253709 E 04/28-14 30 0 75 16 SW 18 1 9039 SW 43 341989 E 04/28-15 27 5 75 16 SW 18 28 4 1 SW54 10970 SW 45 430269 E 04/28-16 27 5 75 16 SW 20 1 10057 SW 44 385842 E 04/28-17 27 5 74 17 W 21 1 9143 SW 43 341415 E 04/28-18 34 5 72 19 W 22 33 3 1 SW64 8230 SW 41 296987 E 04/28-19 34 5 67 24 W 22 1 5634 SW 37 201472 E 04/28-20 34 5 61 31 W 21 1 3039 SW 32 105956 V 04/28-21 34 5 55 40 W 20 30 2 1 SW52 443 W 28 10440 P 04/28-22 34 5 52 48 W 17 1 397 W 23 8173 P 04/28-23 34 5 49 56 W 15 1 350 W 18 5905 P 04/29-00 76 10 46 63 W 12 17 2 2 SW53 303 W 14 3637 P 04/29-01 76 10 45 67 SW 8 2 638 W 12 5616 P 04/29-02 76 10 43 69 S 6 2 973 SW 10 7595 P 04/29-03 76 10 42 70 SE 3 3 2 2 SW49 1308 S 8 9574 P 04/29-04 76 10 41 72 E 2 2 1515 S 9 12419 P 04/29-05 76 10 39 74 N 2 2 1722 S 10 15265 P 04/29-06 90 50 39 74 N 3 3 2 2 SW48 1929 S 10 18110 P 04/29-07 90 50 39 71 N 5 2 2662 S 10 25239 P 04/29-08 90 50 41 68 N 6 2 3394 S 12 32369 P 04/29-09 90 50 43 61 N 7 7 2 2 SW43 4127 S 12 39498 P 04/29-10 90 50 45 54 N 8 2 6009 W 10 51913 F 04/29-11 90 50 47 49 N 10 2 6240 W 9 51466 F 04/29-12 71 50 48 45 N 12 12 2 2 SW31 6470 NW 9 51019 F 04/29-13 71 50 49 42 N 13 2 6930 NW 12 68022 G 04/29-14 71 50 50 40 NW 13 2 7390 W 13 85025 G 04/29-15 71 50 50 39 NW 14 20 2 2 SW30 7850 W 15 102028 V 04/29-16 71 50 50 38 NW 15 2 7631 W 16 107491 V 04/29-17 71 50 50 38 W 15 2 7412 W 17 112953 V 04/29-18 68 15 48 39 W 16 23 2 1 W29 7194 W 18 118416 V 04/29-19 68 15 47 40 W 17 1 6766 W 18 111464 V 04/29-20 68 15 44 43 W 17 1 6339 W 18 104512 V 04/29-21 68 15 41 47 W 17 24 2 1 W26 5911 W 20 97560 G 04/29-22 68 15 39 49 W 17 1 5838 W 20 97022 G 04/29-23 68 15 38 50 W 16 1 5764 W 20 96484 G 04/30-00 64 15 36 51 W 15 21 2 1 W24 5690 W 20 95947 G 04/30-01 64 15 35 51 W 14 1 5654 W 18 91401 G 04/30-02 64 15 35 52 W 13 1 5617 W 17 86855 G 04/30-03 64 15 34 52 W 12 12 2 1 W21 5581 W 17 82310 G 04/30-04 64 15 33 51 W 10 1 5600 W 16 78871 G 04/30-05 64 15 33 50 W 9 1 5620 NW 15 75432 G 04/30-06 64 5 34 49 W 9 9 2 1 NW17 5639 NW 15 71993 G 04/30-07 64 5 35 46 W 10 1 5740 NW 15 72397 G 04/30-08 64 5 37 42 W 12 1 5842 NW 14 72801 G 04/30-09 64 5 40 38 W 14 20 2 1 NW17 5943 NW 14 73205 G 04/30-10 64 5 43 34 W 16 1 6818 NW 14 84368 G 04/30-11 64 5 45 31 W 18 1 7693 NW 14 95531 G 04/30-12 64 10 47 29 W 20 28 2 1 NW16 8568 NW 14 106694 V 04/30-13 64 10 49 28 W 21 1 8989 NW 15 118514 V 04/30-14 64 10 49 28 W 21 1 9410 NW 16 130334 V 04/30-15 64 10 50 29 W 21 29 2 1 NW21 9831 NW 16 142154 V 04/30-16 64 10 50 30 W 21 1 8676 NW 16 124686 V 04/30-17 64 10 50 32 W 20 1 7520 W 16 107217 V 04/30-18 64 10 48 34 W 17 24 2 1 NW24 6365 W 16 89749 G 04/30-19 64 10 47 36 W 13 1 6257 W 15 81856 G 04/30-20 64 10 45 40 W 8 1 6150 NW 14 73962 G 04/30-21 64 10 42 45 W 5 5 2 1 NW21 6042 NW 13 66069 G 04/30-22 64 10 40 52 W 3 1 5994 NW 12 61660 G 04/30-23 64 10 39 58 W 3 1 5945 NW 12 57250 F 05/01-00 64 10 38 64 W 5 5 2 1 NW17 5897 NW 10 52841 F 05/01-01 64 10 37 67 W 5 1 5825 NW 10 55049 F 05/01-02 64 10 36 68 W 5 1 5754 NW 12 57256 F 05/01-03 64 10 36 68 W 5 5 2 1 NW23 5683 NW 12 59464 F 05/01-04 64 10 35 68 W 5 1 5632 NW 13 60803 G 05/01-05 64 10 35 66 W 5 1 5581 NW 13 62141 G 05/01-06 64 10 36 66 W 5 5 2 1 NW29 5530 NW 13 63479 G 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...BOULDER COUNTY SHERIFF S OFFICE REASON FOR REQUEST...PRESCRIBED .TAG 20100428.LAGER.01/BOU