FNUS73 KJKL 062200 FWSJKL SPOT FORECAST FOR COLD HILL...USFS NATIONAL WEATHER SERVICE JACKSON KY 600 PM EDT WED APR 6 2011 FORECAST IS BASED ON IGNITION TIME OF 1030 EDT ON APRIL 07. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT UNTIL 7 PM EDT THIS EVENING... .DISCUSSION...BRISK SOUTHWEST WINDS AND VERY DRY AIR WERE RESULTING IN RED FLAG CONDITIONS IN SOME LOCATIONS LATE IN THE AFTERNOON. THE WIND WILL SUBSIDE AS SUNSET APPROACHES. RELATIVE HUMIDITY WILL SHOW ONLY A WEAK RECOVERY ON RIDGES TONIGHT...ONLY RISING INTO THE 50S AS A LIGHT BREEZE STIRS THROUGH THE NIGHT. HOWEVER...SHELTERED VALLEYS WILL SEE THE WINDS DIMINISH FURTHER...WHICH WILL RESULT IN COOLER TEMPERATURES AND RELATIVE HUMIDITY REACHING AROUND 90 PERCENT. HIGH PRESSURE WHICH WAS ALONG THE SOUTHEAST COAST WILL MOVE OUT TO SEA AS A COLD FRONT APPROACHES ON THURSDAY. WITH THE HIGH DEPARTING...OUR PRESSURE GRADIENT WILL BE LESS ON THURSDAY AND WINDS WILL BE MUCH LIGHTER. DEW POINTS WILL ALSO BEGIN TO CLIMB...WHICH WILL RESULT IN HIGHER HUMIDITY...BUT STILL ON THE DRY SIDE. THE FRONT WILL STALL AS IT REACHES THE AREA...AND A WAVE OF LOW PRESSURE TRAVELING ALONG THE FRONT WILL BRING A CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY NIGHT AND FRIDAY. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....AROUND 40 IN THE VALLEY TO AROUND 50 ON THE RIDGE. MAX HUMIDITY........54 PERCENT ON THE RIDGE TO 90 PERCENT IN THE VALLEY. WIND (20 FT)........SOUTH WINDS 10-15 MPH EARLY...BECOMING SOUTH AT 5-10 MPH ON THE RIDGE AND BECOMING LIGHT AND VARIABLE IN THE VALLEY. POP.................10 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. TIME (EDT) 8 PM 10 PM MIDNGT 2 AM 4 AM 6 AM SKY (%).........11 12 13 14 23 34 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............60 56 53 51 49 48 RH..............31 39 48 59 63 68 20 FT WIND......SW 8 S 6 S 3 S 3 SW 3 SW 3 20 FT WIND GUST.15 10 5 5 5 5 HAINES INDEX....4 4 4 3 3 3 .THURSDAY... SKY/WEATHER.........PARTLY SUNNY. MAX TEMPERATURE.....AROUND 69 ON NORTH SLOPES TO 75 ON SOUTH SLOPES. MIN HUMIDITY........37 PERCENT ON SOUTH SLOPES TO 45 PERCENT ON NORTH SLOPES. WIND (20 FT)........LIGHT AND VARIABLE WINDS BECOMING SOUTHWEST AT 5 TO 7 MPH IN THE AFTERNOON...WITH SPEEDS UP TO 10 MPH ON RIDGES. POP.................10 PERCENT. HAINES INDEX........2 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4700 FT AGL. TRANSPORT WINDS.....SOUTHWEST NEAR 10 MPH. TIME (EDT) 8 AM 10 AM NOON 2 PM 4 PM 6 PM SKY (%).........43 46 51 55 60 67 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............46 57 64 69 72 72 RH..............73 57 52 39 40 44 20 FT WIND......S 3 SW 6 SW 7 SW 6 SW 6 SW 5 20 FT WIND GUST.5 10 10 10 10 10 HAINES INDEX....2 2 2 2 2 2 $$ FORECASTER...HAL REQUESTED BY...MATT ELLIS TYPE OF REQUEST...PRESCRIBED .TAG 20110407.COLDH.01/JKL