FNUS75 KBOU 312219 FWSBOU SPOT FORECAST FOR RYAN GULCH...USFS NATIONAL WEATHER SERVICE DENVER CO 319 PM MST SUN JAN 31 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...MOISTURE COMBINED WITH A DISTURBANCE WILL PRODUCE AREAS OF LIGHT SNOW ON MONDAY WITH ACCUMULATIONS UNDER 2 INCHES. DISPOERSAL WILL BE POOR UNTIL 1000...FAIR THROUGH 1200 THEN GOOD AFTER 1200. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 0500...THEN SNOW SHOWERS LIKELY. MIN TEMPERATURE.....9. MAX HUMIDITY........85%. WIND (20 FT)........WEST 8-12 MPH UNTIL 2400...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH. TRANSPORT WINDS.....WEST 17-28 MPH. MIXING HEIGHT.......3800-4800 FT AGL UNTIL 0300...THEN 2400-3200 FT AGL. SMOKE DISPERSAL.....VERY GOOD UNTIL 2200. FAIR AFTER 0500. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .MONDAY... SKY/WEATHER.........MOSTLY CLOUDY. SNOW SHOWERS LIKELY UNTIL 1700...THEN SLIGHT CHANCE OF SNOW. MAX TEMPERATURE.....31. MIN HUMIDITY........40%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH UNTIL 0900...THEN WEST 8-14 MPH WITH GUSTS TO AROUND 20 MPH. TRANSPORT WINDS.....WEST 21-32 MPH. MIXING HEIGHT.......4800-5800 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1400. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .MONDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY(50-60%). SLIGHT CHANCE OF SNOW UNTIL 2000. MIN TEMPERATURE.....5. MAX HUMIDITY........80%. WIND (20 FT)........WEST 8-12 MPH UNTIL 2100...THEN DOWNSLOPE/DOWNVALLEY 2-8 MPH. TRANSPORT WINDS.....WEST 16-24 MPH UNTIL 2400...THEN SOUTHWEST 4-12 MPH. MIXING HEIGHT.......3800-4800 FT AGL UNTIL 2100. 400-600 FT AGL AFTER 0200. SMOKE DISPERSAL.....VERY GOOD UNTIL 1900. POOR AFTER 2200. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .TUESDAY... SKY/WEATHER.........MOSTLY SUNNY UNTIL 1200...THEN PARTLY CLOUDY(50-60%). MAX TEMPERATURE.....34. MIN HUMIDITY........33%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....SOUTHWEST 4-12 MPH UNTIL 1200...THEN WEST 16-20 MPH. MIXING HEIGHT.......3400-4400 FT AGL. SMOKE DISPERSAL.....POOR UNTIL 1200...THEN FAIR UNTIL 1300...THEN GOOD UNTIL 1600...THEN FAIR. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. .FORECAST DAYS 3 THROUGH 5... .WEDNESDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1800. LOWS AROUND 6. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .THURSDAY...CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 8. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .FRIDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. LOWS AROUND 8. HIGHS IN THE LOWER 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 0600. LOWS AROUND 9. HIGHS IN THE MID 30S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR RYAN GULCH. +++ 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 01/31-15 82 26 30 49 W 9 1 5389 W 31 144836 V 01/31-16 82 26 27 53 W 8 1 5311 W 30 140721 V 01/31-17 86 54 26 57 W 8 8 2 1 SW52 5234 W 30 136605 V 01/31-18 86 54 24 60 W 8 1 5234 W 30 134711 V 01/31-19 86 54 22 64 W 9 1 5234 W 29 132817 V 01/31-20 86 54 20 68 W 9 9 2 1 W52 5235 W 29 130923 V 01/31-21 86 54 18 72 W 8 1 5014 W 26 115359 V 01/31-22 86 54 16 75 W 7 1 4792 W 24 99795 G 01/31-23 88 54 15 77 W 6 6 2 1 W35 4571 W 21 84232 G 02/01-00 88 54 14 77 W 6 1 4217 W 22 78475 G 02/01-01 88 54 14 76 W 6 1 3862 W 22 72718 G 02/01-02 88 54 14 76 W 6 6 2 1 W38 3508 W 22 66961 G 02/01-03 88 54 12 78 W 6 1 3145 W 22 59128 F 02/01-04 88 54 11 82 W 6 1 2781 W 21 51295 F 02/01-05 70 58 11 81 W 6 6 2 1 W41 2418 W 21 43461 F 02/01-06 70 58 11 80 W 6 1 2318 W 20 40197 F 02/01-07 70 58 10 83 W 6 1 2219 W 20 36933 P 02/01-08 70 58 10 85 W 6 6 2 1 NW53 2120 W 18 33668 P 02/01-09 70 58 11 82 W 7 1 3036 W 21 59034 F 02/01-10 70 58 14 75 W 9 1 3951 W 23 84401 G 02/01-11 70 58 17 66 W 12 17 2 1 NW60 4867 W 26 109767 V 02/01-12 70 58 22 55 W 13 1 5285 W 28 129779 V 02/01-13 70 58 27 45 W 13 1 5702 W 30 149791 V 02/01-14 70 58 29 40 W 13 20 2 1 NW60 6119 W 32 169804 E 02/01-15 70 58 28 40 W 13 1 5841 W 32 162633 E 02/01-16 70 58 26 45 W 12 1 5562 W 32 155462 E 02/01-17 58 20 24 47 W 10 16 2 1 NW60 5284 W 32 148291 V 02/01-18 58 20 22 51 W 8 1 4716 W 30 123247 V 02/01-19 58 20 19 56 W 7 1 4148 W 26 98202 G 02/01-20 58 0 17 61 W 6 6 2 1 NW58 3580 W 23 73158 G 02/01-21 58 0 15 66 SW 5 1 2862 W 20 53628 F 02/01-22 58 0 13 70 SW 5 1 2145 W 16 34099 P 02/01-23 50 0 11 74 SW 5 5 2 1 NW60 1427 W 12 14569 P 02/02-00 50 0 9 77 SW 5 1 1180 W 10 11180 P 02/02-01 50 0 8 79 S 5 1 932 W 9 7791 P 02/02-02 50 0 7 80 S 5 5 3 1 NW55 685 W 7 4401 P 02/02-03 50 0 7 80 S 5 1 564 SW 7 3389 P 02/02-04 50 0 7 80 S 5 1 443 SW 6 2377 P 02/02-05 20 0 7 78 S 5 5 3 1 NW40 321 SW 5 1364 P 02/02-06 20 0 7 76 S 5 1 402 SW 5 1651 P 02/02-07 20 0 8 71 S 3 1 482 SW 5 1938 P 02/02-08 20 0 12 60 S 3 3 3 1 NW32 563 SW 5 2224 P 02/02-09 20 0 17 51 SW 3 1 1402 SW 7 12746 P 02/02-10 20 0 21 44 SW 5 1 2241 W 10 23268 P 02/02-11 50 0 26 39 W 5 5 2 1 W32 3080 W 13 33789 P 02/02-12 50 0 29 35 W 5 1 3830 W 15 52615 F 02/02-13 50 0 31 33 W 6 1 4580 W 17 71440 G 02/02-14 50 0 32 33 W 6 6 2 1 W33 5330 W 20 90265 G 02/02-15 50 0 32 35 W 5 1 4555 W 18 73783 G 02/02-16 50 0 30 38 W 5 1 3780 W 17 57301 F 02/02-17 57 0 25 46 W 3 3 2 1 W33 3005 W 16 40819 F 02/02-18 57 0 22 52 W 3 1 2097 W 12 27546 P 02/02-19 57 0 19 57 SW 3 1 1189 SW 8 14273 P 02/02-20 57 0 17 63 S 3 3 2 1 W31 281 SW 5 1000 P 02/02-21 57 0 15 68 S 3 1 237 SW 3 821 P 02/02-22 57 0 13 72 S 3 1 193 S 3 643 P 02/02-23 57 0 11 75 S 3 3 2 1 SW23 150 S 3 464 P 02/03-00 57 0 9 78 S 3 1 141 S 3 422 P 02/03-01 57 0 8 79 S 3 1 132 S 3 380 P 02/03-02 57 0 8 78 S 3 3 2 1 SW20 124 S 3 338 P 02/03-03 57 0 7 78 S 3 1 122 S 3 337 P 02/03-04 57 0 7 78 S 3 1 120 S 3 336 P 02/03-05 74 0 7 77 S 3 3 2 1 SW17 119 S 3 334 P 02/03-06 74 0 7 76 SW 3 1 135 S 3 400 P 02/03-07 74 0 8 74 SW 3 1 151 SW 3 465 P 02/03-08 74 0 12 66 SW 3 3 2 1 W15 166 SW 3 531 P 02/03-09 74 0 16 57 SW 3 1 517 SW 3 1097 P 02/03-10 74 0 20 52 W 3 1 867 SW 2 1663 P 02/03-11 74 0 24 47 W 3 3 2 1 SW15 1217 SW 2 2230 P 02/03-12 74 0 26 43 W 3 1 2471 SW 3 9675 P 02/03-13 74 0 29 41 W 2 1 3725 S 5 17121 P 02/03-14 74 0 29 41 W 2 2 2 1 SW15 4979 S 6 24566 P 02/03-15 74 0 29 43 W 2 1 3604 S 5 17248 P 02/03-16 74 0 27 47 NW 2 1 2228 SE 5 9931 P 02/03-17 74 20 24 55 N 2 2 2 1 SW10 852 SE 3 2613 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...NICK COLLARD REASON FOR REQUEST...PRESCRIBED .TAG 20100201.RYANG.01/BOU