030  
FXUS64 KMRX 061059  
AFDMRX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MORRISTOWN TN  
659 AM EDT MON JUL 6 2026  
   
..NEW AVIATION  
 
   
KEY MESSAGES  
 
UPDATED AT 655 AM EDT MON JUL 6 2026  
 
- DAILY SCATTERED SHOWERS AND THUNDERSTORM CHANCES, WITH MOST  
ACTIVITY OCCURRING IN THE AFTERNOON AND EARLY EVENING HOURS EACH  
DAY. RISK FOR URBAN AND LOW LYING FLOODING DURING ANY BOUT OF HEAVY  
RAINFALL.  
 
 
   
DISCUSSION  
 
ISSUED AT 229 AM EDT MON JUL 6 2026  
 
AS WE START THE NEW WORK WEEK THE JULY SUMMER PATTERN OF SCATTERED  
SHOWERS AND THUNDERSTORMS LOOKS TO REMAIN. A WEAK SHORTWAVE WILL  
HANG OUT TO OUR WEST OVER THE MISSISSIPPI RIVER THROUGH WEDNESDAY  
BEFORE IT LIFTS OFF INTO A BROADER TROUGH, AND THEN BY THE WEEKEND A  
WEAK FRONT MAY BE STATIONARY TO OUR NORTH OVER THE OHIO RIVER VALLEY.  
 
LOCALLY FAIRLY CONSTANT RIDGE HEIGHTS WITH SOME WAVERING IN  
INTENSITY WILL KEEP TEMPERATURES CLOSE TO TYPICAL JULY HEAT. OUR  
VERTICAL MOISTURE PROFILES LOOK TO REMAIN FAIRLY SATURATED, WITH  
PWAT VALUES EACH DAY AROUND 1.7 TO NEARLY 2 INCHES. WITH STORM  
MOTIONS GENERALLY STILL ON THE SLOWER SIDE, EFFICIENT AND HEAVY  
RAINFALL WILL YIELD QUICK ACCUMULATIONS, POTENTIALLY SIMILAR TO WHAT  
WE'VE ALREADY SEEN THE LAST COUPLE OF DAYS. SO, FLOOD RISK WILL BE  
PRESENT DEPENDING ON HOW THE STORMS FORM, CONGEAL, AND WHAT THEY  
MOVE OVER.  
 
AS FAR AS SEVERITY, THERE'S NOT TOO MUCH IN THE WAY OF SHEAR, AND  
THE HIGHLY SATURATED AIRMASS LIKELY KEEPS OVERALL CAPE SUFFICIENT  
FOR TALL THUNDERSTORMS, SO WET DOWNBURSTS ARE THE MOST LIKELY  
HAZARD, SMALL HAIL IN THE STRONGER STORMS. THE GOOD NEWS IS ACTIVITY  
STILL SEEMS TO BE MAINLY DIURNAL, SINCE WE LACK ANY SIGNIFICANT  
FORCING FOR THE BULK OF THE WEEK, SO EACH DAY ISN'T A TOTAL WASHOUT,  
JUST BE LIGHTNING AWARE DURING PEAK HEATING IN THE AFTERNOON WHEN  
STORMS WILL BE TRYING TO FORM AND RAIN OUT AGAIN. WHEN WE GET TO THE  
WEEKEND, AN UPPER TROUGH PASSING THROUGH THE GREAT LAKES MAY TRY TO  
EXTEND A FRONT DOWN HERE, WHICH WOULD PROVIDE A MORE ORGANIZED OR  
WIDESPREAD MECHANISM FOR STORMS. BUT, THAT'S STILL A FEW DAYS OUT.  
IN THE MEAN TIME, THE HEARTBEAT OF SUMMER CONTINUES.  
 
 
   
AVIATION  
 
(12Z TAFS)  
ISSUED AT 655 AM EDT MON JUL 6 2026  
 
MORNING FOG AND LOW CLOUDS HAVE DEVELOPED AT CHA AND WILL  
GRADUALLY LIFT WITHIN THE NEXT HOUR OR TWO, LEADING TO VFR AS  
EXPECTED AT THE REMAINING SITES. SCATTERED SHOWERS AND STORMS ARE  
EXPECTED TO DEVELOP AGAIN BY MID TO LATE AFTERNOON AND CONTINUE  
INTO THE EARLY EVENING HOURS. CURRENTLY, THE COVERAGE LOOKS TO BE  
MORE AT TYS AND TRI, SO VCTS WAS INCLUDED, IN ADDITION TO THE  
TEMPO GROUP. REDUCTIONS TO MVFR OR LESS CAN BE EXPECTED WITHIN  
SHOWERS AND STORMS. SOUTHWESTERLY WINDS OF 10 KTS OR LESS CAN BE  
EXPECTED THROUGH THE DAY, BECOMING LIGHT AND VARIABLE OVERNIGHT.  
FOG IS POSSIBLE IN PLACES THAT SEE RAIN.  
 
 
   
PRELIMINARY POINT TEMPS/POPS  
 
CHATTANOOGA AIRPORT, TN 89 72 90 73 / 70 20 30 10  
KNOXVILLE MCGHEE TYSON AIRPORT, TN 90 72 88 72 / 70 40 60 30  
OAK RIDGE, TN 90 71 88 71 / 60 30 70 20  
TRI CITIES AIRPORT, TN 91 68 86 68 / 60 30 80 30  
 
 
   
MRX WATCHES/WARNINGS/ADVISORIES  
 
NC...NONE.  
TN...NONE.  
VA...NONE.  
 
 
 
 
DISCUSSION...WELLINGTON  
AVIATION...BW  
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