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

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000 FXUS64 KMRX 121425 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 1025 AM EDT SAT JUL 12 2014 .DISCUSSION... CURRENT SURFACE ANALYSIS SHOWS A WEAK AREA OF HIGH PRESSURE OVER THE SOUTHERN APPALACHIANS...WITH A WARM AND MOIST AIR MASS OVER THE FORECAST AREA. A MARGINALLY UNSTABLE AIR MASS IS PROGGED TO DEVELOP OVER THE FORECAST AREA THIS AFTERNOON AND EVENING...WITH ISOLATED CONVECTION LIKELY DEVELOPING AROUND THE HIGHER ELEVATIONS. MODEL SOUNDINGS CONTINUE TO REVEAL A WARM MID-LEVEL LAYER AROUND 600 MB... WHICH SHOULD HELP TO KEEP ANY CONVECTION FROM BECOMING TOO STRONG. OVERALL...CURRENT FORECAST FOR TODAY APPEARS TO BE ON TRACK...BUT WILL UPDATE THIS MORNING TO ADD A MENTION OF ISOLATED CONVECTION OVER THE NORTHERN CUMBERLAND PLATEAU. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 92 71 93 72 / 10 10 20 20 KNOXVILLE MCGHEE TYSON AIRPORT, TN 91 69 91 71 / 10 10 20 30 OAK RIDGE, TN 91 68 92 71 / 10 10 20 30 TRI CITIES AIRPORT, TN 90 64 90 66 / 10 10 30 30 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ DMG

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