FNUS75 KBOU 150958 FWSBOU SPOT FORECAST FOR WHITE RANCH BROADCAST - UNIT 19B...USFS NATIONAL WEATHER SERVICE DENVER CO 355 AM MDT WED APR 15 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A STORM SYSTEM WILL INTENSIFY OVER UTAH WITH SURFACE LOW PRESSURE IN THE MOUNTAINS. MID LEVEL MOISTURE COMBINED WITH AFTERNOON HEATING WILL PRODUCE WIDELY SCATTERED THUNDERSTORMS THIS AFTERNOON AND EVENING. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1500...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1200...THEN SLIGHT CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....55. MIN HUMIDITY........35%. 20-FOOT WINDS.......SOUTHWEST 8-13 MPH UNTIL 0900...THEN UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1200... THEN SOUTHEAST 8-15 MPH...GUSTS TO 20 MPH. TRANSPORT WINDS.....SOUTH 5-16 MPH. MIXING HEIGHT.......1400-2400 FT AGL UNTIL 1100...THEN 6200-7200 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1200. GOOD AFTER 1400. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS UNTIL 2100...THEN SLIGHT CHANCE OF RAIN SHOWERS UNTIL 2400...THEN SLIGHT CHANCE OF RAIN AND SNOW. MIN TEMPERATURE.....35. MAX HUMIDITY........68%. 20-FOOT WINDS.......SOUTH 14-23 MPH WITH GUSTS TO AROUND 35 MPH UNTIL 2400...THEN SOUTHWEST 8-12 MPH. TRANSPORT WINDS.....SOUTH 16-24 MPH UNTIL 2400...THEN 4-12 MPH. MIXING HEIGHT.......3200-4200 FT AGL UNTIL 2000...THEN 400-1400 FT AGL. SMOKE DISPERSAL.....GOOD UNTIL 1900. POOR AFTER 2100. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%). SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1400...THEN CHANCE OF RAIN SHOWERS. MAX TEMPERATURE.....43. MIN HUMIDITY........50%. 20-FOOT WINDS.......UPSLOPE/UPVALLEY 4-10 MPH UNTIL 0900...THEN NORTH 8-13 MPH. TRANSPORT WINDS.....EAST 5-16 MPH. MIXING HEIGHT.......3800-4800 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1100. FAIR AFTER 1200. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...SNOW LIKELY. COLDER. LOWS AROUND 30. HIGHS IN THE LOWER 30S. NORTH WINDS AROUND 21 MPH WITH GUSTS TO AROUND 40 MPH. .SATURDAY...SNOW LIKELY UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 30S. NORTH WINDS AROUND 9 MPH. .SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. WARMER. LOWS AROUND 30. HIGHS IN THE LOWER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR WHITE RANCH BROADCAST - UNIT 19B. +++ 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 04/15-03 57 8 42 48 SW 9 9 3 1 S28 257 SW 15 3379 P 04/15-04 57 8 42 48 SW 9 1 281 SW 15 3619 P 04/15-05 57 8 42 48 SW 9 1 304 SW 15 3858 P 04/15-06 57 16 42 48 SW 13 13 3 1 S38 328 SW 15 4098 P 04/15-07 57 16 43 47 SW 12 1 820 SW 12 4979 P 04/15-08 57 16 44 46 S 7 1 1312 S 8 5861 P 04/15-09 57 16 46 44 S 3 3 3 1 S49 1804 S 5 6742 P 04/15-10 57 16 48 41 S 5 1 3016 S 6 19659 P 04/15-11 57 16 50 39 SE 6 1 4228 S 8 32575 P 04/15-12 57 20 52 37 SE 8 8 3 3 S38 5440 S 9 45492 F 04/15-13 57 20 53 36 SE 8 3 6389 S 10 56595 F 04/15-14 57 20 54 35 SE 8 3 7338 S 10 67699 G 04/15-15 68 20 54 35 SE 8 8 3 3 S24 8287 S 12 78802 G 04/15-16 68 20 54 36 SE 10 3 6930 S 14 76587 G 04/15-17 68 20 53 37 S 14 3 5572 S 17 74372 G 04/15-18 68 20 51 41 S 17 28 3 3 SW28 4215 S 20 72157 G 04/15-19 68 20 49 43 S 21 3 2964 S 22 51483 F 04/15-20 68 20 47 48 S 23 3 1712 S 23 30809 P 04/15-21 76 20 43 55 S 23 37 3 1 S33 461 S 25 10136 P 04/15-22 76 20 41 59 S 20 1 396 S 21 7562 P 04/15-23 76 20 40 63 S 14 1 331 S 15 4988 P 04/16-00 76 20 39 65 S 9 9 3 1 S39 265 S 10 2414 P 04/16-01 76 20 38 67 S 8 1 271 S 9 2079 P 04/16-02 76 20 37 68 S 8 1 277 S 7 1744 P 04/16-03 76 20 37 68 S 8 8 3 1 S47 283 S 6 1409 P 04/16-04 76 20 36 68 SW 7 1 584 S 5 1605 P 04/16-05 76 20 36 66 NW 6 1 885 E 3 1801 P 04/16-06 51 20 37 64 N 3 3 3 1 S41 1187 E 2 1996 P 04/16-07 51 20 37 62 N 5 1 1671 E 2 4434 P 04/16-08 51 20 37 62 N 6 1 2155 E 3 6872 P 04/16-09 51 20 38 59 NE 7 7 2 1 S49 2640 E 5 9310 P 04/16-10 51 20 39 55 NE 7 1 3272 E 7 22582 P 04/16-11 51 20 41 53 N 8 1 3904 E 9 35854 P 04/16-12 51 20 41 51 N 8 8 3 1 S52 4535 E 13 49127 F 04/16-13 51 20 42 50 N 8 1 4679 E 13 53803 F 04/16-14 51 40 43 50 N 8 1 4822 E 14 58479 F 04/16-15 60 40 43 51 NE 9 9 3 1 SE40 4965 E 15 63155 G 04/16-16 60 40 43 52 N 9 1 4666 E 15 60551 G 04/16-17 60 40 42 54 N 10 1 4366 NE 15 57948 F 04/16-18 60 40 41 57 N 12 12 3 1 SE25 4066 NE 16 55345 F 04/16-19 60 40 40 59 N 12 1 3820 NE 15 50884 F 04/16-20 60 40 38 62 N 10 1 3573 NE 15 46424 F 04/16-21 83 40 35 66 N 10 10 3 1 SE41 3326 NE 15 41964 F 04/16-22 83 40 34 67 N 12 1 3008 NE 15 38546 P 04/16-23 83 40 33 67 N 13 1 2690 NE 15 35127 P 04/17-00 83 40 32 66 N 14 14 3 1 SE32 2372 N 15 31709 P 04/17-01 83 40 32 66 N 15 1 2297 N 17 34772 P 04/17-02 100 40 31 64 N 16 1 2223 N 20 37834 P 04/17-03 100 70 31 63 N 17 17 2 1 E43 2148 NE 22 40897 F 04/17-04 100 70 31 62 N 18 1 2239 NE 24 46379 F 04/17-05 100 70 31 60 N 18 1 2331 NE 25 51861 F 04/17-06 100 70 31 59 N 20 30 3 1 E30 2422 NE 28 57343 F 04/17-07 100 70 31 60 N 22 1 2550 NE 31 69622 G 04/17-08 100 70 31 64 N 24 1 2679 NE 35 81900 G 04/17-09 100 70 31 63 N 28 41 2 1 NE39 2807 N 39 94178 G 04/17-10 100 70 32 61 N 28 1 3048 NE 40 108849 V 04/17-11 100 70 32 58 N 28 1 3289 NE 43 123521 V 04/17-12 100 70 33 55 N 28 41 2 1 E48 3529 NE 45 138193 V 04/17-13 100 70 33 56 N 26 1 3512 NE 41 127093 V 04/17-14 100 70 33 56 N 26 1 3495 NE 38 115994 V 04/17-15 100 70 33 57 N 26 40 3 1 E37 3479 NE 35 104895 V 04/17-16 100 70 33 58 N 24 1 3430 NE 32 97051 G 04/17-17 100 70 33 59 N 22 1 3381 NE 30 89207 G 04/17-18 100 70 32 62 N 20 30 3 1 E25 3332 NE 28 81363 G 04/17-19 100 70 32 62 N 18 1 3183 NE 24 68022 G 04/17-20 100 70 31 64 N 17 1 3034 NE 21 54682 F 04/17-21 100 70 30 65 N 15 15 2 1 E30 2884 NE 16 41342 F 04/17-22 100 70 30 67 N 16 1 2791 NE 18 44520 F 04/17-23 100 70 29 68 N 17 1 2697 N 21 47698 F 04/18-00 100 70 29 69 N 17 17 2 1 NE32 2604 N 23 50876 F 04/18-01 100 70 29 70 N 17 1 2354 N 22 44155 F 04/18-02 100 70 28 70 N 16 1 2104 N 21 37435 P 04/18-03 100 70 28 70 N 15 15 2 1 NE29 1855 N 20 30714 P 04/18-04 100 70 28 70 N 13 1 1602 N 20 26712 P 04/18-05 100 70 28 70 N 10 1 1349 N 20 22711 P 04/18-06 100 70 28 70 N 9 9 2 1 NE44 1096 N 20 18710 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 $$ WFO BOULDER REQUESTED BY...ALLEN GALLAMORE REASON FOR REQUEST...PRESCRIBED .TAG 20090415.WHITE.01/BOU