591  
FXUS63 KJKL 280824  
AFDJKL  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE JACKSON KY  
424 AM EDT WED JUN 28 2017  
   
SHORT TERM
 
(TODAY THROUGH THURSDAY)  
ISSUED AT 300 AM EDT WED JUN 28 2017  
 
A PERIOD OF DRY AND WARMER WEATHER IS IN STORE FOR THE RESIDENTS  
OF EASTERN KENTUCKY TODAY AND TOMORROW, AS A RIDGE OF HIGH  
PRESSURE SETTLES OVER THE REGION. HIGH TEMPERATURES WILL RETURN TO  
CLOSER TO NORMAL VALUES TODAY AND TOMORROW, WITH MAX READINGS IN  
THE LOW TO MID 80S EXPECTED. TONIGHTS LOWS WILL ALSO BE WARMER,  
WITH RIDGETOP TEMPERATURES FORECAST TO FALL INTO THE LOWER 60S,  
WHILE THE SURROUNDING VALLEYS BOTTOM OUT IN THE UPPER 50S. WINDS  
WILL BE GENERALLY LIGHT AND VARIABLE WITH MOSTLY CLEAR SKIES ALSO  
ON TAP ACROSS THE AREA THROUGH TOMORROW MORNING. CLOUDS WILL BE ON  
THE INCREASE THURSDAY AFTERNOON, AS AN AREA OF LOW PRESSURE PASSES  
BY TO THE SOUTH OF THE AREA. A FEW SHOWERS AND THUNDERSTORMS MAY  
EVENING ACROSS THE TENNESSEE BORDER INTO OUR SOUTHWESTERN COUNTIES  
THURSDAY AFTERNOON.  
   
LONG TERM
 
(THURSDAY NIGHT THROUGH TUESDAY)  
ISSUED AT 424 AM EDT WED JUN 28 2017  
 
MOISTURE FROM THE GULF OF MEXICO AND OFF THE SOUTHEAST COAST WILL BE  
MOVING AROUND THE WESTERN SIDE OF SURFACE HIGH PRESSURE OVER THE  
ATLANTIC, RESULTING IN RISING DEW POINTS IN OUR AREA AT THE START OF  
THE PERIOD. THERE SHOULD BE LITTLE IN THE WAY OF FEATURES ON THE MAP  
LOCALLY AT THE START OF THE PERIOD, AND CONVECTIVE PRECIP IS  
EXPECTED TO BE MAINLY DIURNAL IN NATURE, WITH VERY LITTLE LEFT BY  
00Z ON THURSDAY EVENING. REDEVELOPMENT IS EXPECTED WITH  
DESTABILIZATION ON FRIDAY, BUT STILL WITH VERY LIMITED COVERAGE DUE  
TO LACK OF FEATURES.  
 
A SHORTWAVE TROUGH ROTATING AROUND A GENERAL TROUGH OVER THE NORTH  
CENTRAL CONUS WILL BRING FALLING GEOPOTENTIAL HEIGHTS AND  
TEMPORARILY NUDGE THE UPPER LEVEL WESTERLIES FURTHER SOUTH,  
SUPPORTING A WEAKENING COLD FRONT TO MOVE INTO OUR AREA ON SATURDAY.  
THIS WILL BRING THE HIGHEST POP OF THE EXTENDED FORECAST PERIOD.  
 
THE UPPER TROUGH LIFTS OUT TO THE NORTHEAST ON SUNDAY AND SOME  
LIMITED DRYING OCCURS AS THE COLD FRONT WASHES OUT WITH PASSAGE.  
FORECAST SOUNDINGS SUGGEST THIS WILL BE ENOUGH TO KNOCK OUT  
CONVECTIVE PRECIP FOR A COUPLE OF DAYS. HOWEVER, WITH LITTLE CHANGE  
IN AIR MASS AND MORE SUNSHINE, TEMPERATURES SHOULD ACTUALLY CLIMB  
SUNDAY AND MONDAY.  
 
ANOTHER UPPER LEVEL TROUGH MOVES IN FROM THE NORTHWEST ON MONDAY  
NIGHT AND TUESDAY, AND LOW LEVEL MOISTURE CREEPS HIGHER. THIS  
SUPPORTS AT LEAST A MENTION OF THUNDERSTORMS ONCE AGAIN. HOWEVER,  
THE HIGHEST POP WILL REMAIN TO OUR NORTHWEST.  
 

 
   
AVIATION
 
(FOR THE 06Z TAFS THROUGH 06Z WEDNESDAY NIGHT)  
ISSUED AT 128 AM EDT WED JUN 28 2017  
 
VFR CONDITIONS WILL PREVAIL THROUGH OUT THE PERIOD AT ALL FIVE TAF  
SITES. MOSTLY CLEAR SKIES, LIGHT WINDS, AND DRY CONDITIONS WILL BE  
ON TAP. VALLEY FOG IS STILL LIKELY, ESPECIALLY NEAR BODIES OF  
WATER AND IN OUR DEEPEST AND MOST SHELTERED VALLEYS. THE FOG  
SHOULD REMAIN SUPPRESSED ENOUGH TO NOT AFFECT ANY OF THE TAF  
SITES.  
 

 
   
JKL WATCHES/WARNINGS/ADVISORIES
 
 
NONE.  

 
 

 
 
SHORT TERM...AR  
LONG TERM...HAL  
AVIATION...AR  
 
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