FNUS75 KBOU 031515 FWSBOU SPOT FORECAST FOR SUGARLOAF F1...USFS NATIONAL WEATHER SERVICE DENVER CO 910 AM MDT FRI APR 3 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A STORM SYSTEM WILL BE MOVING INTO COLORADO THIS AFTERNOON AND TONIGHT...BRINGING COLDER AIR AND PRECIPITATION TO THE REGION. THE AIRMASS WILL BE UNSTABLE THIS AFTERNOON...WITH A FEW THUNDERSTORMS POSSIBLE. RAIN AND SNOW CAN BE EXPECTED THROUGH THIS AFTERNOON...CHANGING TO ALL SNOW TONIGHT. THE SNOW WILL CONTINUE THROUGH MUCH OF THE DAY SATURDAY. EXPECT SOME SNOW ACCUMULATIONS TONIGHT THROUGH SATURDAY. THE EXACT TRACK OF THE STORM SYSTEM IS STILL UNCERTAIN...WHICH WILL HAVE AN EFFECT ON THE SNOW AMOUNTS. DRY CONDITIONS WILL RETURN SUNDAY AS THE SYSTEM MOVES EAST OF THE REGION. HIGH PRESSURE WILL THEN PREVAIL THROUGH TUESDAY. ENOUGH MOISTURE AND INSTABILITY WILL PERSIST FOR A FEW SNOW SHOWERS SUNDAY. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........CLOUDY. SCATTERED RAIN AND SNOW SHOWERS. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....40-45. MIN HUMIDITY........45-50%. 20-FOOT WINDS.......SOUTHWEST 5-11 MPH. TRANSPORT WINDS.....SOUTHWEST 25-36 MPH. MIXING HEIGHT.......1600-2600 FT AGL UNTIL 1100...THEN 4400-5400 FT AGL. SMOKE DISPERSAL.....FAIR UNTIL 1100...THEN GOOD. VERY GOOD AFTER 1300. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........CLOUDY. RAIN AND SNOW SHOWERS LIKELY UNTIL 2400...THEN OCCASIONAL SNOW. SNOW ACCUMULATION OF 3 TO 7 INCHES EXPECTED. MIN TEMPERATURE.....20-25. MAX HUMIDITY........80-85%. 20-FOOT WINDS.......SOUTH 4-8 MPH UNTIL 2100...THEN SOUTHEAST UNTIL 2400...THEN NORTHEAST 4-10 MPH. TRANSPORT WINDS.....SOUTH 9-20 MPH UNTIL 2400...THEN EAST 4-8 MPH. MIXING HEIGHT.......3600-4600 FT AGL UNTIL 2100...THEN 2200-3000 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2100. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SATURDAY... SKY/WEATHER.........CLOUDY. SNOW LIKELY. ADDITIONAL SNOW ACCUMULATION OF 4 TO 7 INCHES POSSIBLE. MAX TEMPERATURE.....27-33. MIN HUMIDITY........73-77%. 20-FOOT WINDS.......NORTH 9-15 MPH. TRANSPORT WINDS.....NORTHWEST 8-16 MPH UNTIL 1200...THEN 21-28 MPH. MIXING HEIGHT.......4200-5200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0800. VERY GOOD AFTER 1200. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .SUNDAY...PARTLY CLOUDY. CHANCE OF SNOW UNTIL 0600...THEN SLIGHT CHANCE OF SNOW SHOWERS. LOWS AROUND 13. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .MONDAY...PARTLY CLOUDY. LOWS AROUND 16. HIGHS IN THE LOWER 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .TUESDAY...PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE MID 40S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR SUGARLOAF F1. +++ 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 04/03-08 87 23 28 76 SW 8 1 1704 W 33 58209 F 04/03-09 87 23 31 72 SW 7 7 2 1 SW49 2369 W 40 84026 G 04/03-10 87 23 34 65 SW 6 1 3272 W 39 107296 V 04/03-11 87 23 37 59 W 5 1 4175 W 37 130565 V 04/03-12 75 31 39 55 W 5 5 2 2 SW58 5078 SW 35 153835 E 04/03-13 75 31 40 52 W 5 2 5157 SW 32 141402 V 04/03-14 75 31 42 51 SW 5 2 5237 S 29 128970 V 04/03-15 75 31 42 49 SW 5 5 2 2 SW35 5316 S 25 116537 V 04/03-16 75 31 42 48 SW 6 2 5103 S 24 107716 V 04/03-17 75 31 41 49 SW 6 2 4889 SW 23 98895 G 04/03-18 99 64 39 51 SW 6 6 3 1 SW39 4675 SW 22 90074 G 04/03-19 99 64 37 53 S 6 1 4139 S 18 69815 G 04/03-20 99 64 35 59 S 6 1 3602 SE 15 49556 F 04/03-21 99 71 32 67 S 6 6 2 1 S41 3065 SE 12 29297 P 04/03-22 99 71 29 73 SE 6 1 2806 SE 9 23561 P 04/03-23 99 71 28 76 E 6 1 2547 SE 8 17825 P 04/04-00 100 86 27 79 NE 6 6 2 1 SW30 2288 SE 6 12090 P 04/04-01 100 86 26 81 NE 6 1 2321 SE 6 11465 P 04/04-02 100 86 25 81 NE 6 1 2354 E 6 10841 P 04/04-03 100 86 25 81 NE 6 6 2 1 S21 2387 E 5 10217 P 04/04-04 100 86 24 81 NE 6 1 2677 NE 6 12528 P 04/04-05 100 86 25 79 N 10 1 2968 NE 6 14839 P 04/04-06 100 72 25 77 N 6 6 2 1 S 5 3258 NE 6 17150 P 04/04-07 100 72 25 76 N 8 1 3315 NW 9 29463 P 04/04-08 100 72 24 81 N 9 1 3728 NW 13 43593 F 04/04-09 100 72 25 79 N 9 9 2 1 NW15 4140 NW 16 57723 F 04/04-10 100 72 25 81 N 10 1 4371 NW 18 71595 G 04/04-11 100 72 26 80 N 10 1 4601 NW 21 85467 G 04/04-12 100 72 27 78 N 12 12 2 1 NW31 4832 NW 24 99339 G 04/04-13 100 72 27 78 N 12 1 4952 NW 24 104221 V 04/04-14 100 72 28 79 N 12 1 5072 NW 24 109103 V 04/04-15 100 72 27 82 N 13 13 2 1 N30 5192 NW 25 113984 V 04/04-16 100 72 26 84 N 13 1 5080 NW 24 107668 V 04/04-17 100 72 25 89 N 13 1 4968 NW 23 101352 V 04/04-18 91 70 25 86 N 13 20 2 1 N28 4856 NW 23 95035 G 04/04-19 91 70 24 85 N 13 1 4595 N 23 92969 G 04/04-20 91 70 22 83 N 13 1 4333 N 24 90903 G 04/04-21 91 70 20 88 NW 14 21 2 1 N29 4072 N 25 88837 G 04/04-22 91 70 18 93 NW 14 1 4029 N 25 88096 G 04/04-23 91 70 17 96 NW 14 1 3985 N 25 87355 G 04/05-00 79 43 16 97 NW 14 21 2 1 N24 3942 N 25 86614 G 04/05-01 79 43 15 100 NW 14 1 3863 N 23 75844 G 04/05-02 79 43 14 100 NW 15 1 3785 N 20 65075 G 04/05-03 79 43 14 99 W 15 23 2 1 N20 3706 N 17 54305 F 04/05-04 79 43 14 97 W 15 1 3465 N 15 46793 F 04/05-05 79 43 14 94 W 15 1 3223 NW 14 39280 P 04/05-06 57 20 14 93 W 15 23 2 1 N21 2982 NW 13 31767 P 04/05-07 57 20 15 91 W 14 1 3637 NW 14 44389 F 04/05-08 57 20 17 83 NW 13 1 4292 NW 15 57011 F 04/05-09 57 20 20 74 NW 12 12 2 1 N17 4947 N 16 69632 G 04/05-10 57 20 24 64 NW 10 1 5769 N 16 81445 G 04/05-11 57 20 27 58 N 9 1 6592 NW 16 93257 G 04/05-12 57 20 29 53 N 8 8 2 1 NW16 7414 NW 16 105069 V 04/05-13 57 20 31 50 N 7 1 8410 NW 17 124085 V 04/05-14 57 20 33 47 NE 7 1 9406 NW 17 143102 V 04/05-15 57 20 33 47 NE 7 7 2 1 NW23 10401 NW 18 162119 E 04/05-16 57 20 33 47 E 6 1 10286 NW 18 166982 E 04/05-17 57 20 32 49 E 6 1 10171 NW 20 171846 E 04/05-18 34 20 30 53 SE 6 6 2 1 W30 10056 NW 21 176709 E 04/05-19 34 20 29 56 SE 5 1 8488 NW 18 140841 V 04/05-20 34 20 26 61 S 5 1 6920 NW 16 104973 V 04/05-21 34 20 23 68 S 3 3 2 1 NW35 5353 NW 15 69104 G 04/05-22 34 20 21 72 SW 3 1 5240 NW 16 71686 G 04/05-23 34 20 20 75 SW 3 1 5128 NW 17 74268 G 04/06-00 34 0 19 75 W 3 3 2 1 NW39 5015 NW 17 76850 G 04/06-01 34 0 18 77 W 5 1 4770 NW 21 83430 G 04/06-02 34 0 17 78 W 6 1 4524 NW 23 90011 G 04/06-03 34 0 17 78 W 7 7 2 1 N58 4279 NW 26 96592 G 04/06-04 34 0 17 79 W 8 1 3997 NW 25 88636 G 04/06-05 34 0 17 78 W 9 1 3715 NW 25 80681 G 04/06-06 34 0 17 77 W 10 10 2 1 N73 3432 NW 24 72725 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...LESZCYNSKI...WFO BOULDER REQUESTED BY...BILL ALAKAI REASON FOR REQUEST...PRESCRIBED .TAG 20090403.SUGAR.01/BOU