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

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000 FXUS64 KMRX 230753 AFDMRX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 353 AM EDT WED JUL 23 2014 .SHORT TERM...(TODAY THROUGH TONIGHT)...MOISTURE FROM WEAK UPPER LOW TO THE SW OVER LOWER MS VALLEY WILL GET SHUNTED SOUTH TODAY AS BROAD NORTHEAST US TROUGH DIGS SOUTH AHEAD OF A COLD FRONT OVER THE OHIO VALLEY. CURRENT SATELLITE AND RADAR SHOWING LARGE AREA OF STORMS FROM NORTHERN IL EAST INTO LAKE ERIE AND SOUTHERN CANADA THIS MORNING. A FEW CLOUDS WERE ACROSS THE FORECAST AREA WITH ISOLATED SHOWERS LINGERING IN KNOX AND GRAINGER COUNTIES. SKIES WILL BE PARTLY CLOUDY EARLY BUT CLOUDS SHOULD INCREASE LATER THIS AFTERNOON AS MODELS SHOW SHOWERS AND STORMS DEVELOPING AHEAD OF THE FRONT LATE TODAY INTO TONIGHT AND LINGERING SHOWERS AND A FEW STORMS THURSDAY MORNING DECREASING IN THE AFTERNOON. A FEW STORMS MAY BE COME STRONG WITH DAMAGING WIND POSSIBLE LATE TODAY INTO THE EVENING. TEMPERATURES WILL WARM INTO THE UPPER 80S TO NEAR 90 AGAIN TODAY. TONIGHT THE RAIN CHANCES REMAIN HIGH AS THE FRONT APPROACHES AND CONTINUE INTO THURSDAY MORNING. TEMPERATURES THURSDAY ARE EXPECTED TO BE SEVERAL DEGREES COOLER WITH SHOWERS AND STORMS IN THE MORNING AND POSSIBLY ONLY A FEW BREAKS IN THE AFTERNOON. THE COLD FRONT WILL SHIFT WINDS TO THE NORTH AND NORTHWEST AS WELL. .LONG TERM...(THURSDAY NIGHT THROUGH TUESDAY)...LITTLE CHANGE TO CURRENT FORECAST. SURFACE HIGH PRESSURE ORIGINATING FROM CENTRAL CANADA AND A NW FLOW ALOFT WILL PROVIDE AN UNSEASONABLY DRY AND COOL AIR MASS FOR FRIDAY. SOME MODERATION WILL OCCUR SATURDAY WHEN THE HIGH MOVES EAST...WITH HIGH TEMPERATURES CLOSER TO NORMAL. A CLOSED LOW DROPS INTO THE GREAT LAKES REGION FOR SUNDAY...PRODUCING FALLING HEIGHTS ALOFT AND PUSHING ANOTHER FRONT TOWARD THE AREA FROM THE NW. THE COLD FRONT WILL MOVE SE THROUGH THE AREA ON MONDAY. SHOWER ACTIVITY WILL RAMP UP ON SUNDAY IN ADVANCE OF THE FRONT AND CONTINUE INTO MONDAY. THE TROUGH AXIS SHOULD BE EAST OF OUR AREA TUESDAY...WITH COOL AND DRY HIGH DROPPING OUT OF CANADA PROVIDING BELOW NORMAL TEMPERATURES. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 89 70 86 67 / 50 50 50 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 88 69 84 65 / 50 60 60 10 OAK RIDGE, TN 89 69 83 64 / 50 70 50 10 TRI CITIES AIRPORT, TN 89 67 81 60 / 50 70 60 10 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && $$ TD/SON

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