FNUS73 KPAH 071036 FWSPAH SPOT FORECAST FOR BLOWDOWN UNITS 9 10...US FOREST SERVICE NATIONAL WEATHER SERVICE PADUCAH KY 436 AM CST SUN MAR 7 2010 FORECAST IS BASED ON IGNITION TIME OF 0930 CST ON MARCH 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SURFACE WINDS WILL LIKELY HAVE A SLIGHT SOUTHEAST COMPONENT PRIOR TO IGNITION TIME...BEFORE BECOMING DUE SOUTH. A BRIEF PERIOD OF WIND GUSTS UP TO 17 MPH WILL BE POSSIBLE BETWEEN 10 AM AND 2 PM CST. SCATTERED TO BROKEN CLOUDS NEAR 5000 FT AGL WILL BECOME OVERCAST BY NOON. SPRINKLES OF RAIN WILL BE POSSIBLE WITH THE BEST CHANCE OF RAIN IN THE AFTERNOON. IN ADDITION...SUR HUMIDITIES WILL CONTINUE TO INCREASE DURING THE AFTERNOON...AS WELL. IT SHOULD BE NOTED THAT THE CURRENT FORECAST HOURLY RELATIVE HUMIDITIES TODAY MAY BE 5 TO 10 PERCENT TOO LOW AT TIMES. ANY SURFACE INVERSION WILL LIKELY SET UP WITHIN AN HOUR BEFORE SUNSET AND SHOULD DROP DOWN TO BETWEEN 500 AND 700 FT AGL BY MIDNIGHT...REMAINING AT OR BELOW 500 FT AGL THROUGH AT LEAST 7 AM CST MONDAY MORNING. ANY SUBSTANTIAL MIXING ABOVE THE 1700 FT MINIMUMS WILL NOT LIKELY OCCUR UNTIL 10 AM CST MONDAY. .TODAY... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT) WITH A SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. TEMPERATURE.........51 AT IGNITION...MAX 61. MIN HUMIDITY........49 PERCENT AT IGNITION...MIN 36 PERCENT. WIND (20 FT)........WINDS SOUTH AT 9 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING SOUTHWEST 6 TO 10 MPH. CWR.................0 PERCENT. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH AT IGNITION...MAX 3. MIXING HEIGHT.......2600 FT AGL AT IGNITION...OTHERWISE 800-2600 FT AGL INCREASING TO 1200-2900 FT AGL LATE IN THE MORNING. TRANSPORT WINDS.....SOUTH 0 TO 6 MPH INCREASING TO SOUTHWEST 20 TO 26 MPH. TIME (CST) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........MC MC MC MC MC MC MC MC MC WEATHER COV..... SCH SCH SCH SCH SCH SCH WEATHER TYPE.... RW RW RW RW RW RW TEMP............48 51 54 56 58 59 60 59 58 RH..............49 47 45 43 42 44 44 47 52 20 FT WIND DIR..S S SW SW SW SW SW SW SW 20 FT WIND SPD..6 7 8 8 8 8 7 6 6 20 FT WIND GUST.10 15 20 20 20 20 10 10 10 MIX HGT (KFT)...2.3 2.6 2.9 2.9 2.8 2.5 2.1 1.6 1.2 TRANSP WIND DIR.S S SW SW SW SW SW SW W TRANSP WIND SPD.10 15 20 23 25 26 26 26 26 CWR.............0 0 0 0 0 0 0 0 0 HAINES INDEX....2 2 2 2 2 2 3 3 3 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (65-75 PERCENT). MIN TEMPERATURE.....39. MAX HUMIDITY........100 PERCENT. WIND (20 FT)........SOUTH WINDS AROUND 6 MPH EARLY IN THE EVENING BECOMING LIGHT. CWR.................0 PERCENT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......200-900 FT AGL. TRANSPORT WINDS.....WEST 16 TO 25 MPH BECOMING SOUTHWEST 6 TO 14 MPH AFTER MIDNIGHT...THEN SHIFTING TO THE SOUTH 1 TO 3 MPH EARLY IN THE MORNING. TIME (CST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).........MC MC MC MC MC MC MC MC MC MC MC MC WEATHER COV..... WEATHER TYPE.... TEMP............55 52 50 48 47 46 45 44 43 42 42 41 RH..............59 66 71 76 79 82 85 89 88 91 90 92 20 FT WIND DIR..S S SW SW SW SW W W W NW NW N 20 FT WIND SPD..5 5 3 2 2 2 2 2 2 2 2 1 20 FT WIND GUST.10 5 5 MIX HGT (KFT)...0.9 0.7 0.6 0.5 0.5 0.5 0.5 0.4 0.3 0.2 0.2 0.3 TRANSP WIND DIR.W W W W W W W W W SW SW S TRANSP WIND SPD.25 24 23 21 18 16 14 12 9 6 3 1 CWR.............0 0 0 0 0 0 0 0 0 0 0 0 HAINES INDEX....3 3 3 3 3 3 3 3 3 3 3 3 .MONDAY... SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). MAX TEMPERATURE.....63. MIN HUMIDITY........49 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH EARLY IN THE AFTERNOON. CWR.................0 PERCENT. HAINES INDEX........3 TO 4 OR OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......500-1900 FT AGL INCREASING TO 2700-4400 FT AGL IN THE LATE MORNING AND EARLY AFTERNOON...THEN DECREASING TO 1400-2100 FT AGL LATE IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHWEST 0 TO 9 MPH SHIFTING TO THE SOUTH 12 TO 15 MPH LATE IN THE AFTERNOON. TIME (CST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........MC MC MC MC MC MC MC MC MC MC MC MC WEATHER COV..... WEATHER TYPE.... TEMP............40 42 45 49 52 55 58 60 61 62 62 61 RH..............94 93 85 78 71 64 59 55 55 54 54 58 20 FT WIND DIR..NE NE SE SE S S S S S S S SE 20 FT WIND SPD..1 1 1 2 2 2 3 3 4 4 4 5 20 FT WIND GUST. 5 5 5 5 5 5 5 MIX HGT (KFT)...0.5 1.1 1.9 2.7 3.5 4.0 4.4 4.1 3.5 2.8 2.1 1.4 TRANSP WIND DIR.S S S SW SW SW SW SW SW S S S TRANSP WIND SPD.0 0 0 1 3 5 6 8 9 12 13 15 CWR.............0 0 0 0 0 0 0 0 0 0 0 0 HAINES INDEX....3 3 3 4 4 4 4 4 4 4 3 3 $$ FORECASTER...SMITH REQUESTED BY...SCOTT CRIST TYPE OF REQUEST...PRESCRIBED .TAG 20100307.BLOWD.01/PAH