Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
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-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --000 FXUS64 KMRX 072317 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 617 PM EST SAT DEC 7 2013 .AVIATION...-- Changed Discussion --COLD AIR NEAR THE SURFACE IS TRAPPED IN THE TN VALLEY THIS EVENING...AND WARM AIR ALOFT WILL BE RIDING UP AND OVER THE LOW LEVEL COLD AIR. THIS WILL CREATE CLOUDY CONDITIONS THROUGH THE NIGHT...WITH CEILINGS EXPECTED TO DROP FROM CURRENT MVFR LEVELS INTO THE IFR CATEGORY AROUND MIDNIGHT AT TYS AND CHA. LIGHT RAIN WILL ALSO BEGIN AROUND THIS TIME...LOWERING VIS TO MVFR. HEAVIER RAIN IS EXPECTED BEFORE SUNRISE...LOWERING VIS TO IFR...WHICH SHOULD PERSIST ALL DAY AT TYS AND CHA. AT TRI...A DOWNSLOPE WIND IS EXPECTED TO LIFT CIGS A BIT OVERNIGHT...UP TO VFR BY 12Z...ALTHOUGH MVFR VIS MAY ACCOMPANY THE RAINFALL.-- End Changed Discussion --&& .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...FREEZING RAIN ADVISORY FROM 1 AM TO 7 AM EST SUNDAY FOR THE FOLLOWING ZONES: SCOTT TN. VA...FREEZING RAIN ADVISORY FROM 1 AM TO 7 AM EST SUNDAY FOR THE FOLLOWING ZONES: WISE. && $$ DGS
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