FNUS75 KBOU 051429 FWSBOU SPOT FORECAST FOR PONTIAC PIT...NPS NATIONAL WEATHER SERVICE DENVER CO 829 AM MDT WED MAY 5 2010 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...STRONG WESTERLY FLOW ALOFT WILL GRADUALLY SHIFT TO SOUTHWEST FLOW. BROAD SURFACE LOW PRESSURE AREA DEVELOPING OVER UTAH WHILE HIGH PRESSURE BUILDS OVER THE GREAT PLAINS. AT LOWER LEVELS WINDS WILL BE OUT OF THE SOUTH. MID LEVEL MOISTURE AND SOME INSTABILITY WILL DEVELOP THIS AFTERNOON WITH ISOLATED GUSTY SHOWERS DEVELOPING. ON THURSDAY...AN UPPER TROUGH WILL BE MOVING OVER WYOMING WITH MODERATE SOUTHWESTERLY FLOW ALOFT OVER COLORADO. A COLD FRONT IS EXPECTED TO MOVE INTO THE STATE FROM THE NORTH WITH COOLER TEMPERATURES AND A BETTER CHANCE OF SHOWERS IN THE AFTERNOON AND EVENING. ...THUNDERSTORMS IMPLY STRONG...GUSTY AND ERRATIC WINDS... .TODAY... SKY/WEATHER.........SUNNY UNTIL 1100...THEN PARTLY CLOUDY(40-50%). MOSTLY CLOUDY AFTER 1400. SCATTERED RAIN SHOWERS AFTER 1500. MAX TEMPERATURE.....48-55. MIN HUMIDITY........14-20%. WIND (20 FT)........UPSLOPE/UPVALLEY 4-10 MPH UNTIL 1200...THEN SOUTHWEST 10-16 MPH UNTIL 1500. TRANSPORT WINDS.....WEST 21-32 MPH UNTIL 1200...THEN 32-40 MPH. MIXING HEIGHT.......500-1000 FT AGL UNTIL 1000...THEN RISING TO 7500-8000 FT AGL AFTER 1200. SMOKE DISPERSAL.....POOR UNTIL 1000...THEN FAIR UNTIL 1300...THEN EXCELLENT. HAINES INDEX........2 VERY LOW. .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS UNTIL 2100. SCATTERED SNOW SHOWERS AFTER 2400. MIN TEMPERATURE.....27-34. MAX HUMIDITY........54-62%. WIND (20 FT)........SOUTHWEST 8-12 MPH. TRANSPORT WINDS.....SOUTHWEST 16-28 MPH UNTIL 2400...THEN 12-16 MPH. MIXING HEIGHT.......6000-6500 FT AGL UNTIL 2000...THEN DECREASING TO 1000-1500 FT AGL. SMOKE DISPERSAL.....EXCELLENT UNTIL 2000. POOR AFTER 2400. HAINES INDEX........2 VERY LOW. .THURSDAY... SKY/WEATHER.........CLOUDY. CHANCE OF RAIN SHOWERS AND SNOW SHOWERS. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. MAX TEMPERATURE.....46-52. MIN HUMIDITY........32-40%. WIND (20 FT)........WEST WINDS 10-20 MPH. GUSTS UP TO 30 MPH IN THE LATE MORNING AND AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 25-36 MPH UNTIL 1200...THEN 40-48 MPH. MIXING HEIGHT.......RISING TO 6000-6500 FT AGL AFTER 1000. SMOKE DISPERSAL.....POOR UNTIL 0900. EXCELLENT AFTER 1400. HAINES INDEX........2 VERY LOW. .FORECAST DAYS 3 THROUGH 5... .FRIDAY...MOSTLY CLOUDY. CHANCE OF SNOW SHOWERS UNTIL 0600...THEN SLIGHT CHANCE OF SNOW SHOWERS. SLIGHT CHANCE OF RAIN SHOWERS AFTER 1200. LOWS IN THE LOWER 20S. HIGHS IN THE MID 40S. WEST WINDS AROUND 9 MPH WITH GUSTS TO AROUND 25 MPH. .SATURDAY...MOSTLY CLOUDY. SLIGHT CHANCE OF RAIN SHOWERS AFTER 1200. LOWS IN THE LOWER 20S. HIGHS IN THE MID 50S. SOUTHWEST WINDS AROUND 9 MPH WITH GUSTS TO AROUND 20 MPH. .SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS AFTER 1200. LOWS IN THE UPPER 20S. HIGHS IN THE UPPER 50S. TYPICAL SLOPE/VALLEY WINDS LESS THAN 10 MPH. EXPERIMENTAL FIRE WEATHER TABLE FOR PONTIAC PIT. +++ 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 05/05-07 58 0 28 36 SW 6 1 1630 W 21 40396 F 05/05-08 58 0 31 36 W 6 1 2838 W 26 75131 G 05/05-09 70 0 36 33 W 6 6 2 1 W71 4046 W 31 109866 V 05/05-10 70 0 41 27 W 7 1 5315 W 35 164904 E 05/05-11 70 0 45 22 W 7 1 6585 W 37 219943 E 05/05-12 89 30 48 18 W 8 13 2 1 W73 7854 W 40 274981 E 05/05-13 89 30 50 17 W 8 1 8245 W 39 277874 E 05/05-14 89 30 51 17 SW 7 1 8637 W 38 280767 E 05/05-15 94 30 52 17 SW 7 7 2 1 W60 9029 W 36 283660 E 05/05-16 94 30 52 18 SW 7 1 8278 W 35 249542 E 05/05-17 94 30 51 20 SW 6 1 7526 SW 32 215425 E 05/05-18 94 50 50 22 SW 6 6 2 2 W45 6775 SW 31 181307 E 05/05-19 94 50 48 25 SW 6 2 5836 SW 30 153669 E 05/05-20 94 50 45 31 SW 6 2 4897 SW 29 126032 V 05/05-21 99 50 42 37 SW 6 6 2 2 SW58 3957 SW 29 98394 G 05/05-22 99 50 39 41 SW 5 2 2793 SW 21 66368 G 05/05-23 99 50 38 43 S 2 2 1628 SW 14 34342 P 05/06-00 99 59 36 45 CALM 1 2 1 SW67 464 SW 6 2316 P 05/06-01 99 59 35 48 S 2 1 421 SW 8 2854 P 05/06-02 99 59 34 51 SW 3 1 377 SW 10 3391 P 05/06-03 100 59 33 54 SW 6 6 2 1 SW61 334 SW 14 3929 P 05/06-04 100 59 32 54 SW 7 1 422 SW 16 6166 P 05/06-05 100 59 32 54 SW 8 1 510 SW 18 8403 P 05/06-06 80 34 32 53 SW 9 15 2 1 SW48 597 SW 21 10640 P 05/06-07 80 34 34 50 SW 12 1 1829 SW 26 53222 F 05/06-08 80 34 36 47 SW 16 1 3060 SW 31 95804 G 05/06-09 80 34 38 42 W 20 31 2 1 W76 4292 SW 37 138386 V 05/06-10 80 34 41 38 W 17 1 4519 SW 40 157518 E 05/06-11 80 34 43 36 W 14 1 5093 SW 41 182355 E 05/06-12 90 43 45 34 W 12 18 2 2 W60 5668 SW 43 207192 E 05/06-13 90 43 46 34 W 12 2 5923 SW 44 227512 E 05/06-14 90 43 47 34 W 14 2 6179 W 46 247831 E 05/06-15 90 43 47 35 W 15 24 2 2 W63 6435 W 48 268151 E 05/06-16 90 43 47 35 W 15 2 6593 W 45 255055 E 05/06-17 90 43 47 36 W 15 2 6751 W 41 241959 E 05/06-18 89 32 45 39 W 14 22 2 1 W59 6910 W 38 228863 E 05/06-19 89 32 43 43 W 12 1 6175 W 32 178906 E 05/06-20 89 32 39 50 W 8 1 5441 W 25 128949 V 05/06-21 89 32 35 60 W 6 6 2 1 W68 4707 W 20 78992 G 05/06-22 89 32 32 68 W 5 1 4461 W 18 72087 G 05/06-23 89 32 30 75 W 5 1 4216 SW 17 65183 G 05/07-00 89 32 28 80 W 5 5 2 1 W71 3971 SW 17 58279 F 05/07-01 89 32 27 84 W 6 1 3909 W 17 59714 F 05/07-02 89 32 25 88 W 7 1 3846 W 18 61149 G 05/07-03 89 32 24 89 W 8 13 2 1 W75 3783 W 20 62584 G 05/07-04 89 32 23 89 W 8 1 3926 W 21 69419 G 05/07-05 89 32 23 87 W 8 1 4069 W 22 76254 G 05/07-06 70 20 23 85 W 8 13 2 1 W79 4212 W 23 83090 G 05/07-07 70 20 25 79 W 9 1 4752 W 25 109398 V 05/07-08 70 20 28 71 W 10 1 5292 W 29 135707 V 05/07-09 70 20 32 61 W 12 18 2 1 W79 5831 W 32 162015 E 05/07-10 70 20 36 52 W 13 1 6486 W 33 186171 E 05/07-11 70 20 39 47 W 14 1 7140 W 33 210327 E 05/07-12 67 20 41 43 W 15 24 2 1 W79 7795 W 35 234484 E 05/07-13 67 20 43 40 W 15 1 7983 W 35 241945 E 05/07-14 67 20 44 38 W 15 1 8172 W 36 249407 E 05/07-15 67 20 44 36 W 14 22 2 1 W74 8360 W 36 256869 E 05/07-16 67 20 45 35 W 13 1 8126 W 32 227846 E 05/07-17 67 20 44 36 W 13 1 7893 W 29 198824 E 05/07-18 50 10 42 37 W 10 16 2 1 W68 7659 W 25 169801 E 05/07-19 50 10 41 40 NW 7 1 6864 W 22 134517 V 05/07-20 50 10 37 46 NE 3 1 6070 SW 17 99233 G 05/07-21 50 10 34 53 CALM 1 2 1 W56 5276 SW 14 63949 G 05/07-22 50 10 32 58 E 2 1 4309 SW 14 51063 F 05/07-23 50 10 30 63 E 5 1 3343 S 13 38177 P 05/08-00 63 5 29 67 SE 8 13 2 1 W60 2377 S 13 25291 P 05/08-01 63 5 27 69 SE 9 1 2037 S 13 22334 P 05/08-02 63 5 26 71 SE 10 1 1697 SE 14 19377 P 05/08-03 63 5 25 71 SE 12 18 2 1 W66 1357 SE 14 16420 P 05/08-04 63 5 25 71 SE 12 1 1370 SE 15 17560 P 05/08-05 63 5 24 70 SE 12 1 1384 SE 16 18701 P 05/08-06 63 5 25 70 SE 12 18 2 1 W69 1397 S 16 19842 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 $$ DANKERS...WFO BOULDER REQUESTED BY...JAMES CHAMP REASON FOR REQUEST...PRESCRIBED .TAG 20100505.PONTI.01/BOU