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

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000 FXUS64 KMRX 291343 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 942 AM EDT FRI AUG 29 2014 .DISCUSSION...
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NO SIGNIFICANT CHANGES GENERALLY FROM YESTERDAY...EVEN SIMILAR AREAS OF FOG/LOW CLOUDS NOTED ACROSS THE SEQUATCHIE VALLEY IN SE TN AND ALSO A FEW OTHER LAKES OR STREAMS. THE WEAK FRONTAL BOUNDARY HARD TO PLACE WITH RATHER HOMOGENOUS DEW POINT TEMPS ACROSS THE FORECAST AREA. NOT SURE HOW MUCH OF A FACTOR THE FRONTAL BOUNDARY WILL BE FOR THIS AFTERNOON...BUT PROBABLY CAN COUNT ON WEAK LOW LEVEL CONVERGENCE IN THE HIGHER TERRAIN OF NE TN AND SW VA. SPOTTY SHOWERS OR TSRA SHOULD BE ABLE TO POP ONCE WE OVERCONME SOME WEAK CAPPING...(NOTED ON 12Z OHX AND RNK SOUNDINGS). FORECAST GRIDS AND PRODUCTS LOOK ON TRACK THIS MORNING...BUT MIGHT NEED TO TWEAK HOURLY GRIDS. LOOKING AHEAD...SEEING A TREND IN THE MODELS TO SLOW DOWN THE EASTWARD SPREAD OF PRECIPITATION SATURDAY NIGHT. MAY ADJUST POPS DOWN SOME FOR SATURDAY NIGHT AFTER VIEWING 12Z MODEL RUNS.
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&& .PRELIMINARY POINT TEMPS/POPS...
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CHATTANOOGA AIRPORT, TN 94 70 89 72 / 10 10 40 60 KNOXVILLE MCGHEE TYSON AIRPORT, TN 92 68 88 71 / 20 20 30 60 OAK RIDGE, TN 92 68 87 71 / 20 20 30 60 TRI CITIES AIRPORT, TN 88 65 86 65 / 30 30 10 40
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&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ TG

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