FNUS75 KBOU 310025 FWSBOU SPOT FORECAST FOR GREYS LOST HIKER...USFS NATIONAL WEATHER SERVICE DENVER CO 625 PM MDT SAT MAY 30 2009 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...WEAK FLOW ALOFT WILL CONTINUE OVER THE FORECAST AREA TONIGHT INTO EARLY NEXT WEEK. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THIS EVENING...THEN DIMINISH AFTER MIDNIGHT. A WEAK UPPER LEVEL DISTURBANCE IS EXPECTED TO MOVE INTO THE AREA SUNDAY AFTERNOON PRODUCING ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .REST OF TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY UNTIL 2400...THEN PARTLY CLOUDY(50-60%). SCATTERED THUNDERSTORMS UNTIL 2400...THEN ISOLATED RAIN SHOWERS. MIN TEMPERATURE.....28-35. MAX HUMIDITY........90-100% 20-FOOT WINDS.......SOUTHWEST 7-13 MPH. GUSTS TO 35 MPH NEAR THE STORMS. TRANSPORT WINDS.....SOUTHWEST 4-12 MPH. MIXING HEIGHT.......200-600 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1200...THEN MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1200...THEN SCATTERED THUNDERSTORMS. MAX TEMPERATURE.....45-50 MIN HUMIDITY........45-55% 20-FOOT WINDS.......WEST 9-15 MPH UNTIL 1500...THEN SOUTH 4-5. GUSTS TO 35 MPH NEAR THE STORMS. TRANSPORT WINDS.....WEST 4-12 MPH UNTIL 1200...THEN NORTHEAST UP TO 4 MPH. MIXING HEIGHT.......200-600 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .SUNDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. THUNDERSTORMS AND SNOW SHOWERS LIKELY UNTIL 2400...THEN CHANCE OF SNOW SHOWERS. MIN TEMPERATURE.....28-34. MAX HUMIDITY........75-85%. 20-FOOT WINDS.......NORTHWEST 8-14 MPH. TRANSPORT WINDS.....NORTHWEST 5-16 MPH. MIXING HEIGHT.......200 FT AGL UNTIL 1900...THEN 400-1400 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .MONDAY... SKY/WEATHER.........PARTLY CLOUDY(50-60%) UNTIL 1200...THEN CLOUDY. CHANCE OF THUNDERSTORMS AND SNOW SHOWERS UNTIL 1200...THEN THUNDERSTORMS AND SNOW SHOWERS LIKELY. MAX TEMPERATURE.....36. MIN HUMIDITY........69%. 20-FOOT WINDS.......NORTHWEST 8-14 MPH. TRANSPORT WINDS.....NORTHWEST 4-12 MPH. MIXING HEIGHT.......1400-2400 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...CLOUDY. CHANCE OF SNOW SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS UNTIL 0600...THEN CHANCE OF SNOW UNTIL 1800...THEN SLIGHT CHANCE OF SNOW. LOWS IN THE UPPER 20S. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .WEDNESDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600... THEN SLIGHT CHANCE OF THUNDERSTORMS AND SNOW SHOWERS UNTIL 1200... THEN CHANCE OF THUNDERSTORMS. LOWS IN THE MID 20S. HIGHS IN THE UPPER 30S. NORTHWEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND 35 MPH. .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS UNTIL 1200...THEN SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 17 MPH WITH GUSTS TO AROUND 35 MPH. .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 20S. HIGHS AROUND 40. WEST WINDS AROUND 17 MPH WITH GUSTS TO AROUND 35 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR GREYS LOST HIKER. +++ 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 05/30-18 77 50 37 65 SW 7 7 4 4 W12 559 SW 6 2705 P 05/30-19 77 50 37 68 SW 7 4 444 SW 6 2217 P 05/30-20 77 50 35 73 SW 7 4 329 S 6 1728 P 05/30-21 77 50 34 77 SW 7 7 4 4 N 9 213 S 7 1240 P 05/30-22 77 30 33 81 SW 7 4 201 S 7 1204 P 05/30-23 77 30 32 85 SW 7 4 189 SW 7 1167 P 05/31-00 54 10 31 87 SW 7 7 4 1 NE 6 176 SW 7 1131 P 05/31-01 54 10 31 90 SW 8 1 170 SW 8 1198 P 05/31-02 54 10 30 93 SW 9 1 163 SW 9 1265 P 05/31-03 54 10 30 95 SW 10 10 4 1 NE 5 157 SW 9 1332 P 05/31-04 54 10 29 96 SW 12 1 160 SW 10 1475 P 05/31-05 54 10 29 97 W 12 1 162 W 12 1617 P 05/31-06 51 20 29 96 W 13 13 4 1 NE 3 164 W 13 1760 P 05/31-07 51 20 30 92 W 13 1 187 W 12 1737 P 05/31-08 51 20 34 78 W 12 1 209 W 9 1713 P 05/31-09 51 20 37 68 W 10 10 4 1 E 6 231 W 8 1690 P 05/31-10 51 20 39 61 W 9 1 348 W 7 1892 P 05/31-11 51 20 42 55 W 8 1 465 NW 6 2094 P 05/31-12 70 40 43 51 W 7 7 4 4 S 8 583 NW 5 2296 P 05/31-13 70 40 44 50 W 5 4 596 N 3 1800 P 05/31-14 70 40 45 49 S 2 4 610 NE 2 1304 P 05/31-15 70 40 45 50 CALM 1 4 4 S 9 624 CALM 808 P 05/31-16 70 40 43 53 S 2 4 512 SE 3 1040 P 05/31-17 70 40 42 56 SW 5 4 401 SW 5 1272 P 05/31-18 75 59 39 55 W 10 10 4 5 S10 289 W 6 1505 P 05/31-19 75 59 38 58 W 12 5 1914 W 13 21165 P 05/31-20 75 59 36 62 NW 13 5 1333 NW 14 15314 P 05/31-21 75 59 34 66 NW 13 13 4 5 SW 6 752 NW 15 9464 P 05/31-22 75 59 33 68 NW 10 5 637 NW 12 7133 P 05/31-23 75 59 33 66 NW 8 5 522 NW 9 4802 P 06/01-00 72 33 33 64 NW 6 6 4 1 SW 8 406 NW 7 2471 P 06/01-01 72 33 32 67 NW 6 1 346 NW 7 2049 P 06/01-02 72 33 31 70 NW 6 1 285 NW 7 1626 P 06/01-03 72 33 30 73 NW 6 6 4 1 S 8 224 NW 6 1204 P 06/01-04 72 33 30 74 NW 5 1 235 NW 6 1090 P 06/01-05 72 33 30 74 NW 5 1 246 NW 5 976 P 06/01-06 60 38 30 77 NW 3 3 4 3 S 6 257 NW 3 862 P 06/01-07 60 38 30 78 NW 2 3 387 NW 3 1095 P 06/01-08 60 38 31 76 NW 2 3 516 NW 3 1328 P 06/01-09 60 38 32 73 NW 2 2 4 3 S 7 646 NW 2 1561 P 06/01-10 60 38 33 71 NW 2 3 1106 NW 3 4300 P 06/01-11 60 38 34 70 NW 3 3 1565 NW 5 7039 P 06/01-12 85 63 35 71 NW 5 5 4 5 S 6 2025 NW 6 9778 P 06/01-13 85 63 35 70 NW 7 5 2187 NW 7 14208 P 06/01-14 85 63 36 69 NW 8 5 2350 NW 9 18638 P 06/01-15 85 63 35 71 NW 10 10 4 5 SW 5 2512 NW 10 23068 P 06/01-16 85 63 34 72 NW 12 5 2380 NW 12 24613 P 06/01-17 85 63 34 74 NW 13 5 2248 NW 14 26158 P 06/01-18 79 63 32 78 NW 13 13 4 5 NW10 2116 NW 15 27703 P 06/01-19 79 63 32 80 NW 13 5 1720 NW 14 21268 P 06/01-20 79 63 31 83 NW 13 5 1324 NW 12 14833 P 06/01-21 79 63 30 87 NW 13 13 4 5 N21 928 NW 10 8398 P 06/01-22 79 63 29 92 NW 12 5 731 NW 9 6422 P 06/01-23 79 63 29 96 N 12 5 534 NW 9 4446 P 06/02-00 84 53 29 98 N 10 10 4 2 N23 337 NW 8 2470 P 06/02-01 84 53 29 100 N 10 2 311 NW 8 2218 P 06/02-02 84 53 28 100 NW 9 2 285 NW 8 1965 P 06/02-03 84 53 28 100 NW 9 9 4 2 N16 259 NW 8 1713 P 06/02-04 84 53 28 100 NW 9 2 267 NW 7 1700 P 06/02-05 84 53 28 99 NW 8 2 276 NW 7 1687 P 06/02-06 89 53 28 99 NW 8 8 4 1 NW12 284 NW 7 1674 P 06/02-07 89 53 28 98 NW 8 1 501 NW 7 3113 P 06/02-08 89 53 29 94 NW 7 1 717 NW 7 4553 P 06/02-09 89 53 31 88 NW 7 7 4 1 NW17 934 NW 7 5992 P 06/02-10 89 53 32 82 NW 7 1 1361 NW 8 9327 P 06/02-11 89 53 33 79 NW 7 1 1789 NW 8 12661 P 06/02-12 89 47 34 78 NW 7 7 4 1 NW15 2216 NW 8 15995 P 06/02-13 89 47 34 76 NW 7 1 1869 NW 8 12754 P 06/02-14 89 47 35 77 NW 7 1 1521 NW 7 9513 P 06/02-15 89 47 34 80 NW 7 7 4 1 W15 1174 NW 6 6272 P 06/02-16 89 47 33 83 NW 6 1 914 NW 6 4662 P 06/02-17 89 47 33 85 W 6 1 654 W 5 3052 P 06/02-18 89 20 31 89 W 6 6 4 W17 394 W 5 1442 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...WFO BOULDER REQUESTED BY...MATT TAYLOR REASON FOR REQUEST...SAR .TAG 20090530.GREYS.01/BOU