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

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000 FXUS64 KMRX 300821 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 421 AM EDT TUE SEP 30 2014 .SHORT TERM...(TODAY AND TONIGHT)...LAYER RIDGING BUILDS INTO THE AREA FROM THE WEST. LAYER BECOMES DRIER AND THICKNESS VALUES RISE SLIGHTLY. MILD WARMING TREND WITH LIGHT WINDS. PATCHY MORNING FOG. .LONG TERM...(WEDNESDAY THROUGH MONDAY)...CONTINUED WARMING TEMPERATURES WEDNESDAY AND WEDNESDAY NIGHT AS HIGH PRESSURE RIDGE SHIFTS FARTHER EAST. THURSDAY RIDGING SHIFTS EAST AS UPPER TROUGH DIGS SOUTH OVER THE CENTRAL US. LOW PRESSURE OVER SOUTH CENTRAL CANADA WITH COLD FRONT THAT EXTENDS SOUTH TO SURFACE LOW OVER SOUTHERN PLAINS SLOWLY MOVES EAST THURSDAY. THURSDAY NIGHT A STRONG COLD FRONT WILL MOVE INTO THE MS AND WESTERN TN VALLEY SPREADING CLOUDS AND A CHANCE OF SHOWERS AND STORMS EASTWARD. THE SYSTEM NOW LOOKS A LITTLE SLOWER THAN BEFORE WITH THE BEST CHANCE OF PRECIPITATION DURING THE DAY FRIDAY WITH SHOWERS LIKELY AND ENOUGH INSTABILITY FOR THUNDERSTORMS. THE FRONT SHOULD BE EAST OF THE APPALACHIANS BY EVENING WITH SHOWERS ENDING BY AROUND 6Z SATURDAY. BOTH HIGH AND LOW TEMPERATURES WILL BE MUCH ABOVE NORMAL THROUGH THURSDAY NIGHT. WENT A LITTLE BELOW GUIDANCE THURSDAY AS CLOUDS INCREASE. FRIDAY TEMPERATURES MUCH COOLER DUE TO CLOUDS AND PRECIPITATION. BEHIND THE FRONT FRIDAY NIGHT THROUGH THE WEEKEND MUCH COOLER WITH HIGHS OVER THE WEEKEND 60S TO LOWER 70S SATURDAY TO MID 60S TO MID 70S SUNDAY. LOWS SATURDAY NIGHT WILL BE IN THE 40S. SLOW WARMING TREND CONTINUES MONDAY WITH A WEAK SYSTEM TO CAUSE A FEW SHOWERS NORTHERN SECTIONS. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 84 59 86 63 / 0 0 0 0 KNOXVILLE MCGHEE TYSON AIRPORT, TN 82 57 83 60 / 0 0 0 0 OAK RIDGE, TN 83 56 84 60 / 0 0 0 0 TRI CITIES AIRPORT, TN 80 50 82 52 / 0 0 0 0 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ SON/TD

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