FNUS73 KPAH 111654 FWSPAH SPOT FORECAST FOR GRASSY KNOB...USFS SHAWNEE NF NATIONAL WEATHER SERVICE PADUCAH KY 1054 AM CST THU NOV 11 2010 FORECAST IS BASED ON REQUEST TIME OF 1029 CST ON NOVEMBER 11. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WEATHER ON THE GRASSY KNOB FIRE WILL BE HIGHLY AFFECTED BY TERRAIN. CLOSE TO THE RIDGETOP...WINDS WILL BE FROM THE SOUTHEAST AT 5 TO 10 MPH. LOWER DOWN ALONG THE RIVER...WINDS WILL BE LIGHT AND VARIABLE. THERE MAY BE A PERIOD OF UPSLOPE WIND FLOW AS THE WARMER VALLEY AIR RISES. ALL WIND SPEEDS WILL BE UNDER 10 MPH. AFTERNOON RELATIVE HUMIDITY WILL BE LOWER THAN WEDNESDAY AFTERNOON...ESPECIALLY LOWER DOWN ALONG THE SLOPE. NOT MUCH CHANGE IS EXPECTED ON FRIDAY...EXCEPT THAT WINDS WILL BE MORE SOUTHERLY AT ALL ELEVATIONS. .TODAY... SKY/WEATHER.........BECOMING MOSTLY SUNNY (25-35 PERCENT). TEMPERATURE.........66 AT REQUEST...MAX 76. RH..................48 PERCENT AT REQUEST...MIN 29 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH IN THE AFTERNOON HIGHER ON RIDGE...VARIABLE IN VALLEY. CWR.................0 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT REQUEST...MAX 4. MIXING HEIGHT.......2500-4200 FT AGL IN THE LATE MORNING AND EARLY AFTERNOON...THEN DECREASING TO 900-1700 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 7 TO 9 MPH. TIME (CST) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........PC PC PC PC PC PC PC PC WEATHER COV..... WEATHER TYPE.... TEMP............62 66 71 73 74 74 72 66 RH..............48 41 35 32 32 32 35 43 20 FT WIND DIR..S S S S SE SE SE SE 20 FT WIND SPD..3 3 3 4 5 5 5 4 20 FT WIND GUST.5 5 5 10 10 10 10 10 MIX HGT (KFT)...3.6 4.0 4.2 3.9 3.3 2.5 1.7 0.9 TRANSP WIND DIR.S S S S S S S SE TRANSP WIND SPD.7 7 7 7 8 8 9 9 CWR.............0 0 0 0 0 0 0 0 HAINES INDEX....3 3 3 3 3 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). TEMPERATURE.........MIN 44. RH..................MAX 79 PERCENT AT RIDGETOP...90 PERCENT IN VALLEY WIND (20 FT)........LIGHT WINDS. CWR.................0 PERCENT. MIXING HEIGHT.......0-300 FT AGL. TRANSPORT WINDS.....SOUTHEAST 10 TO 13 MPH. TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........PCLDY MCLEAR MCLEAR MCLEAR MCLEAR MCLEAR WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............61 56 53 50 49 47 RH..............52 61 65 68 71 76 20 FT WIND......SE 3 SE 3 SE 3 S 3 S 3 S 3 20 FT WIND GUST.5 5 5 5 5 5 MIX HGT (FT)....300 BLW100 BLW100 300 100 BLW100 TRANSPORT WIND..SE 10 SE 12 S 13 S 13 S 12 S 10 CWR.............0 0 0 0 0 0 .FRIDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). TEMPERATURE.........MAX 73. RH..................MIN 30 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTH 5 TO 8 MPH. CWR.................0 PERCENT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......300-2000 FT AGL INCREASING TO 1300-3200 FT AGL IN THE LATE MORNING AND AFTERNOON...THEN DECREASING TO 700 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....SOUTH 10 TO 18 MPH. TIME (CST) 6 AM 9 AM NOON 3 PM SKY (%).........MCLEAR MCLEAR PCLDY PCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............46 56 68 71 RH..............79 54 35 32 20 FT WIND......S 3G5 S 5G10 S 6G15 S 6G15 MIX HGT (FT)....300 2000 3200 2000 TRANSPORT WIND..SE 10 S 12 S 14 S 17 CWR.............0 0 0 0 HAINES INDEX....5 5 5 5 $$ FORECASTER...YORK REQUESTED BY...JON TEUTRINE TYPE OF REQUEST...WILDFIRE .TAG 20101111.GRASS.01/PAH