FNUS75 KBOU 312348 FWSBOU SPOT FORECAST FOR RFB 16 18 20...USFS NATIONAL WEATHER SERVICE DENVER CO 448 PM MST MON JAN 31 2011 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...COLD ARCTIC AIR WILL CONTINUE MOVING INTO THE REGION THROUGH TUESDAY. UPSLOPE CLOUDS AND LIGHT SNOWFALL WILL ALSO CONTINUE INTO THE AFTERNOON. STRONG SURFACE HIGH PRESSURE OVER THE NORTHERN PLAINS WILL PRODUCE EAST TO NORTHEAST WINDS ACROSS NORTHEAST COLORADO AND INTO THE FOOTHILLS. AN UPPER LEVEL TROUGH LINGERING OVER THE REGION WILL KEEP THE AIRMASS SLIGHTLY UNSTABLE ABOVE THE STABLE LOW LEVEL AIRMASS. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TONIGHT... SKY/WEATHER.........CLOUDY. SNOW UNTIL 2300...THEN SNOW LIKELY UNTIL 0500...THEN CHANCE OF SNOW. MIN TEMPERATURE.....-17 TO -12. MAX HUMIDITY........100%. 20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-8 MPH UNTIL 2100...THEN NORTHEAST 5-10 MPH. TRANSPORT WINDS.....NORTH 2-6 MPH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 1900...THEN 1000-1600 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 VERY LOW. .TUESDAY... SKY/WEATHER.........CLOUDY. CHANCE OF SNOW. MAX TEMPERATURE.....-7 TO -3. MIN HUMIDITY........88-94%. 20-FOOT WINDS.......NORTHEAST WINDS 7-13 MPH. TRANSPORT WINDS.....NORTHEAST AROUND 4 MPH. MIXING HEIGHT.......1800-2800 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 VERY LOW. .TUESDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SNOW UNTIL 2300. MIN TEMPERATURE.....-24 TO -18. MAX HUMIDITY........100%. 20-FOOT WINDS.......NORTHEAST WINDS 4-8 MPH UNTIL 2100...THEN DOWNSLOPE/DOWNVALLEY 4-8 MPH UNTIL 2400...THEN SOUTH AROUND 5 MPH UNTIL 0300...THEN WEST. TRANSPORT WINDS.....EAST AROUND 4 MPH UNTIL 2400...THEN SOUTH. MIXING HEIGHT.......1200-2200 FT AGL UNTIL 0200...THEN BELOW 1000 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 VERY LOW. .WEDNESDAY... SKY/WEATHER.........PARTLY CLOUDY(30-40%) UNTIL 1200...THEN MOSTLY SUNNY. MAX TEMPERATURE.....ZERO TO 5 ABOVE. MIN HUMIDITY........52-58%. 20-FOOT WINDS.......WEST WINDS 6-10 MPH UNTIL 0900...THEN SOUTHEAST AROUND 5 MPH UNTIL 1500...THEN UPSLOPE/UPVALLEY 4-10 MPH. TRANSPORT WINDS.....WEST AROUND 4 MPH UNTIL 1200...THEN NORTH. MIXING HEIGHT.......BELOW 1000 FT AGL UNTIL 0900...THEN 1600-2600 FT AGL. SMOKE DISPERSAL.....POOR. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .THURSDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1800. NOT AS COLD. LOWS AROUND 5. HIGHS IN THE UPPER 20S. WEST WINDS AROUND 10 MPH WITH GUSTS TO 30 MPH. .FRIDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SNOW UNTIL 1800. NOT AS COOL. LOWS IN THE LOWER 20S. HIGHS AROUND 40. WEST WINDS AROUND 11 MPH WITH GUSTS TO 20 MPH. .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW AFTER 1800. LOWS IN THE LOWER 20S. HIGHS IN THE UPPER 30S. WEST WINDS AROUND 12 MPH WITH GUSTS TO 25 MPH. .SUNDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF SNOW. COLDER. LOWS AROUND 15. HIGHS IN THE MID 20S. NORTHWEST WINDS AROUND 7 MPH. FIRE WEATHER TABLE FOR RFB 16 18 20. +++ DATA IN THE FOLLOWING TABLE HAS BEEN SAMPLED DIRECTLY FROM THE FORECAST DATABASE. VALUES IN THE TABLE MAY VARY SLIGHTLY FROM INFORMATION IN THE NARRATIVE 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 01/31-16 100 97 1 100 NE 6 1 846 E 3 2801 P 01/31-17 99 81 0 100 NE 5 5 2 1 W31 815 E 5 3386 P 01/31-18 99 81 -1 100 NE 3 1 899 NE 3 2568 P 01/31-19 99 81 -2 100 NE 3 1 983 NE 2 1750 P 01/31-20 99 81 -3 100 NE 3 3 2 1 W35 1068 CALM 932 P 01/31-21 99 81 -4 100 NE 5 1 1195 CALM 1674 P 01/31-22 99 81 -5 100 NE 5 1 1322 N 2 2416 P 01/31-23 100 71 -5 100 NE 6 6 2 1 W40 1450 N 2 3158 P 02/01-00 100 71 -6 100 NE 6 1 1353 N 3 3433 P 02/01-01 100 71 -7 100 NE 5 1 1255 N 3 3709 P 02/01-02 95 71 -7 100 NE 5 5 2 1 W36 1158 N 3 3984 P 02/01-03 95 71 -8 100 NE 5 1 1292 N 3 4108 P 02/01-04 95 71 -9 100 NE 5 1 1427 N 3 4233 P 02/01-05 95 55 -10 100 NE 5 5 2 1 W33 1561 N 3 4357 P 02/01-06 95 55 -11 100 NE 5 1 1540 N 3 4345 P 02/01-07 95 55 -12 100 NE 6 1 1520 N 3 4334 P 02/01-08 97 55 -13 100 NE 6 6 2 1 W29 1499 N 3 4322 P 02/01-09 97 55 -13 100 NE 7 1 1832 NE 3 5963 P 02/01-10 97 55 -13 100 E 7 1 2166 NE 3 7604 P 02/01-11 92 52 -12 100 E 8 13 2 1 SW23 2500 NE 5 9245 P 02/01-12 92 52 -12 100 E 8 1 2612 NE 5 9135 P 02/01-13 92 52 -11 100 E 8 1 2725 E 3 9025 P 02/01-14 89 52 -10 100 NE 8 13 2 1 SW24 2837 E 3 8915 P 02/01-15 89 52 -9 100 NE 8 1 2837 E 5 10025 P 02/01-16 89 52 -8 100 NE 7 1 2836 E 5 11135 P 02/01-17 76 30 -8 91 NE 7 7 2 1 SW16 2835 E 5 12246 P 02/01-18 76 30 -12 100 NE 6 1 2517 E 5 11056 P 02/01-19 76 30 -13 100 NE 6 1 2199 E 6 9867 P 02/01-20 76 30 -15 96 NE 5 5 2 1 SW10 1881 E 6 8678 P 02/01-21 76 30 -16 95 E 3 1 1693 E 5 7418 P 02/01-22 76 30 -17 95 E 2 1 1506 E 5 6159 P 02/01-23 71 0 -18 95 E 2 2 2 1 SW16 1318 SE 5 4899 P 02/02-00 71 0 -19 96 SE 2 1 1136 SE 5 4325 P 02/02-01 71 0 -19 97 S 3 1 955 S 5 3751 P 02/02-02 71 0 -20 98 SW 5 5 2 1 W20 773 S 5 3177 P 02/02-03 71 0 -20 98 W 7 1 662 S 5 2673 P 02/02-04 71 0 -20 98 W 8 1 551 SW 5 2169 P 02/02-05 34 0 -20 99 W 9 15 2 1 W25 441 W 5 1665 P 02/02-06 34 0 -20 100 W 8 1 582 SW 3 1647 P 02/02-07 34 0 -19 100 W 6 1 723 SW 3 1629 P 02/02-08 34 0 -15 95 SW 3 3 2 1 W21 865 SW 2 1611 P 02/02-09 34 0 -12 83 SW 3 1 1293 W 2 2155 P 02/02-10 34 0 -9 75 SE 3 1 1721 NW 2 2699 P 02/02-11 28 0 -5 66 E 5 5 2 1 SW16 2150 N 2 3243 P 02/02-12 28 0 -3 60 E 5 1 2314 N 3 6393 P 02/02-13 28 0 -1 56 E 5 1 2479 N 5 9543 P 02/02-14 28 0 0 54 E 3 3 2 1 SW14 2644 N 6 12693 P 02/02-15 28 0 0 54 E 2 1 2385 N 6 11697 P 02/02-16 28 0 0 56 CALM 1 2126 N 6 10702 P 02/02-17 28 0 -1 56 CALM 1 2 1 SW 9 1867 N 6 9706 P 02/02-18 28 0 -1 58 CALM 1 1510 NW 6 7436 P 02/02-19 28 0 -2 58 CALM 1 1153 NW 5 5167 P 02/02-20 28 0 -2 59 W 2 2 2 1 W 3 796 W 5 2897 P 02/02-21 28 0 -3 61 W 5 1 651 W 6 2777 P 02/02-22 28 0 -3 62 W 7 1 507 W 7 2656 P 02/02-23 28 0 -3 63 W 9 15 2 1 NE 7 362 W 8 2536 P 02/03-00 28 0 -4 63 W 10 1 320 W 9 2438 P 02/03-01 28 0 -4 62 W 12 1 278 W 10 2339 P 02/03-02 28 0 -4 61 W 13 21 2 1 NE21 235 W 12 2241 P 02/03-03 28 0 -4 61 W 15 1 216 W 13 2250 P 02/03-04 28 0 -4 60 W 16 1 197 W 14 2260 P 02/03-05 51 0 -4 61 W 17 28 3 1 NE51 177 W 15 2269 P 02/03-06 51 0 -4 63 W 17 1 205 W 14 2364 P 02/03-07 51 0 -1 58 W 16 1 233 W 13 2458 P 02/03-08 51 0 4 52 W 14 22 4 1 NE67 261 W 12 2553 P 02/03-09 51 0 9 45 W 12 1 1004 NW 14 14591 P 02/03-10 51 0 13 40 W 8 1 1746 N 16 26630 P 02/03-11 58 0 18 37 W 6 6 4 1 NE63 2488 N 18 38668 P 02/03-12 58 0 21 36 W 5 1 3044 N 21 56399 F 02/03-13 58 0 24 36 W 5 1 3600 N 23 74130 G 02/03-14 58 0 25 39 NW 6 6 2 1 NE60 4156 N 25 91860 G 02/03-15 58 0 25 43 NW 7 1 3776 N 26 85172 G 02/03-16 58 0 25 48 NW 7 1 3396 N 26 78483 G 02/03-17 75 13 25 52 NW 8 13 2 1 N51 3016 N 28 71794 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 $$ DANKERS...WFO BOULDER REQUESTED BY...ED LEBLANC REASON FOR REQUEST...PRESCRIBED .TAG 20110201.RFB16.01/BOU