Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN

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000 FXUS64 KMRX 231848 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 248 PM EDT SAT MAY 23 2015 .SHORT TERM /TONIGHT AND SUNDAY/...
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HIGH PRESSURE REMAINS DISPLACED TO THE SOUTH AND EAST OF THE REGION THIS AFTERNOON...PROMOTING A SOUTHERLY FLOW AND A WARMER DAY WITH A MOSTLY CLEAR SKY. A FEW PATCHES OF MID/HIGH CLOUDS MAY MOVE INTO THE REGION LATE THIS AFTERNOON AND EVENING...BUT MOST LOCATIONS SHOULD ENJOY ABUNDANT SUNSHINE FOR THE REMAINDER OF THE DAY. THESE CLEAR CONDITIONS WILL PERSIST OVERNIGHT...ALLOWING FOR GOOD RADIATIONAL COOLING. LOWS SHOULD BOTTOM OUT IN THE MID TO UPPER 50S IN MOST VALLEY LOCATIONS. WITH THE AFOREMENTIONED RIDGE BUILDING OVER THE REGION OVER THE NEXT 24 HOURS...AN EVEN WARMER DAY IS EXPECTED TOMORROW AS SOUTHERLY WINDS INCREASE SLIGHTLY AS WELL. THERE MAY ALSO BE SOME ADDITIONAL CLOUD COVER...BUT A MOSTLY CLEAR SKY IS EXPECTED FOR MUCH OF THE DAY. THIS WILL PUSH HIGHS INTO THE LOW TO MID 80S...WITH CONTINUED DRY CONDITIONS. .LONG TERM /SUNDAY NIGHT THROUGH SATURDAY/... UPPER RIDGE SLOWLY RETREATS EASTWARD INTO THE ATLANTIC EARLY IN THE EXTENDED. THIS PLACES THE SOUTHERN APPALACHIAN REGION UNDER MOIST...SOUTHERLY FLOW WITH A SERIES OF BOUNDARIES AND SHORT WAVES TRACKING INTO THE AREA. THIS WILL CREATE A CHANCE OF CONVECTION PRETTY MUCH EACH PERIOD OF THE EXTENDED. MODELS CONTINUE TO SHOW DIFFERENCES IN TIMING AND POSITION OF EACH FEATURE SO CONFIDENCE LOW ON DETAILS. HOWEVER... BEST CHANCE OF SHOWER/THUNDERSTORM DEVELOPMENT CURRENTLY LOOKS LIKE TUESDAY NIGHT AND WEDNESDAY. WEAK RIDGING BUILDS IN FRIDAY NIGHT AND SATURDAY BUT WITH LOW LEVEL MOISTURE IN PLACE AND A WEAK IMPULSES MOVING THROUGH...ISOLATED CONVECTION WILL REMAIN POSSIBLE.
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&& .PRELIMINARY POINT TEMPS/POPS...
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CHATTANOOGA AIRPORT, TN 59 85 66 83 / 0 10 10 30 KNOXVILLE MCGHEE TYSON AIRPORT, TN 57 84 63 82 / 0 0 10 30 OAK RIDGE, TN 56 84 65 82 / 0 10 10 30 TRI CITIES AIRPORT, TN 52 82 57 81 / 0 0 10 20
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ AMP/MJB

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