FNUS73 KJKL 301330 FWSJKL SPOT FORECAST FOR US 60...USFS NATIONAL WEATHER SERVICE JACKSON KY 930 AM EDT SAT JUN 30 2012 FORECAST IS BASED ON REQUEST TIME OF 0842 EDT ON JUNE 30. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. ...HEAT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .DISCUSSION...THE IMMEDIATE CONCERN IS THE WIND DIRECTION. THE WINDS ARE BEING INFLUENCED FROM THE SYSTEM THAT MOVED THROUGH THE AREA LAST NIGHT. GENERALLY LIGHT EASTERLY WINDS SHOULD BE SHIFTING AROUND TO THE SOUTHWEST AS THE MORNING PROGRESSES. THERE MAY BE A PRONOUNCED SHIFT AS THE INVERSION BREAKS BY 10 PM. DURING THE AFTERNOON TODAY...THERE MAY BE AN OCCASIONAL STRONGER GUST OF WIND AS HIGHER MOMENTUM AIR IS MIXED DOWN TO THE SURFACE. WITH THE DRY FUELS AND LOW RH TODAY...THE GUSTS COULD GREATLY EFFECT THE FIRE BEHAVIOR AND TACTICS. THERE IS ALSO THE POSSIBILITY OF THUNDERSTORMS FORMING DURING THE AFTERNOON. THESE THUNDERSTORMS CAN HAVE OUTFLOW BOUNDARIES MANY MILES AHEAD OF THE STORM AND COULD CREATED RADICALLY DIFFERENT CONDITIONS IN A MOMENTS NOTICE. IT IS ESSENTIAL TO MONITOR THE RADAR THIS AFTERNOON FOR GUST FRONTS. WIND GUSTS FROM THE THUNDERSTORMS OF 50 MPH ARE POSSIBLE. .TODAY... SKY/WEATHER.........SUNNY. SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 101. MIN HUMIDITY........29 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 8 MPH IN THE AFTERNOON WITH AN OCCASIONAL GUST TO 15 MPH. SURROUNDING RIDGE...WEST 5 TO 10 MPH. RIDGETOP WIND.......WEST 5 TO 10 MPH. POP.................20 PERCENT. HAINES INDEX........4 TO 6 OR OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......11000 FT AGL. TRANSPORT WINDS.....WEST IN THE MID TEENS MPH. DISPERSION INDEX....248. TIME (EDT) 8 AM 10 AM NOON 2 PM 4 PM 6 PM SKY (%).........7 14 14 17 18 20 WEATHER COV..... S CHC WEATHER TYPE....NONE NONE NONE NONE NONE TSTORM TEMP............71 82 91 97 99 101 RH..............78 64 47 35 28 26 20 FT WIND......NE 1 E 3 W 6 W 7 W 8 W 7 20 FT WIND GUST. 5 10 14 15 13 HAINES INDEX....4 4 4 6 6 6 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS. MIN TEMPERATURE.....AROUND 70. MAX HUMIDITY........93 PERCENT. WIND (20 FT)........LIGHT WINDS. SURROUNDING RIDGE...SOUTH 0 TO 5 MPH. RIDGETOP WIND.......SOUTH 0 TO 5 MPH. POP.................20 PERCENT. HAINES INDEX........4 TO 6 OR OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. TIME (EDT) 8 PM 10 PM MIDNGT 2 AM 4 AM 6 AM SKY (%).........23 40 39 39 36 31 WEATHER COV.....S CHC S CHC S CHC S CHC S CHC S CHC WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM TSTORM TSTORM TEMP............95 85 80 77 74 71 RH..............33 51 61 72 81 89 20 FT WIND......W 3 NW 3 NE 1 E 0 E 0 SE 0 20 FT WIND GUST.5 5 HAINES INDEX....6 6 6 4 4 4 .SUNDAY... SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF THUNDERSTORMS. MAX TEMPERATURE.....AROUND 98. MIN HUMIDITY........32 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING NORTHWEST 5 TO 7 MPH IN THE AFTERNOON. SURROUNDING RIDGE...WEST 0 TO 5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON. RIDGETOP WIND.......WEST 0 TO 5 MPH SHIFTING TO THE NORTHWEST IN THE AFTERNOON. POP.................20 PERCENT. HAINES INDEX........5 TO 6 OR OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH TO OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......8200 FT AGL. TRANSPORT WINDS.....NORTH AROUND 7 MPH. DISPERSION INDEX....86. TIME (EDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM SKY (%).........28 29 32 34 36 38 39 39 40 40 40 40 WEATHER COV.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH WEATHER TYPE....TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TSM TEMP............70 73 79 86 89 93 94 97 97 98 98 97 RH..............92 80 65 51 46 39 37 35 34 34 34 36 20 FT WIND DIR..S S SW SW W W W W W NW NW NW 20 FT WIND SPD..1 2 2 3 3 5 7 7 6 6 5 5 20 FT WIND GUST. 5 5 5 5 10 10 10 10 10 HAINES INDEX....5 5 5 5 5 5 6 6 6 6 6 6 $$ FORECASTER...JACOBSON REQUESTED BY...DISPATCH TYPE OF REQUEST...WILDFIRE .TAG 20120630.US60_.01/JKL