788  
FXUS64 KOHX 051943  
AFDOHX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE NASHVILLE TN  
243 PM CDT WED AUG 5 2020  
   
DISCUSSION
 
 
MID AND UPPER-LEVEL RIDGING CONTINUES TO GRIP MUCH OF THE  
SOUTHWESTERN U.S. AND PLAINS, WHILE GENERAL TROUGHING CONTINUES  
OVER THE GREAT LAKES AND NORTHEAST. WE FIND OURSELVES BETWEEN THE  
TWO FEATURES AND IN A MUCH LESS DISTINCT PATTERN. THE BENEFIT HAS  
BEEN COOLER AND VERY PLEASANT CONDITIONS FOR THE TN/OH VALLEY. A  
FEW RAIN SHOWERS HAVE FORMED OVER THE CUMBERLAND PLATEAU THIS  
AFTERNOON AND ARE EXPECTED TO WEAKEN AS THE SUN SETS. RAIN CHANCES  
THROUGH FRIDAY WILL REMAIN CONFINED TO THE PLATEAU, THOUGH NOT  
EVERYONE THERE WILL SEE MEASURABLE RAINFALL. SATURDAY WILL BE  
LARGELY DRY BUT WARMING CONSIDERABLY, AS TEMPERATURES SOAR INTO  
THE UPPER 80S TO MID 90S. HEAT INDICES COULD PUSH THE CENTURY  
MARK, MAINLY ALONG THE TN RIVER.  
 
A FRONTAL BOUNDARY WILL BEGIN SHIFTING NORTH OUT OF AL/MS ON  
SUNDAY INTO MONDAY, SETTING THE STAGE FOR INCREASING RAIN CHANCES  
BY EARLY NEXT WEEK. A COLD FRONT WILL BE MOVING INTO THE MIDWEST,  
BUT IT REMAINS TO BE SEEN HOW FAR SOUTH THIS FRONT WILL MOVE.  
THUS, WE LOOK TO REMAIN IN A WEAK ZONAL FLOW PATTERN THROUGH THE  
MIDDLE OF NEXT WEEK, WHICH WILL ALLOW FOR SUBTLE MID-LEVEL  
DISTURBANCES TO TRAVERSE THE AREA. ANY ONE OF THESE COULD SPARK  
RAIN AND A FEW THUNDERSTORMS, ESPECIALLY IN THE AFTERNOON/EARLY  
EVENING. THE CHANCE FOR MORE WIDESPREAD ACTIVITY WILL BE TUESDAY  
AND WEDNESDAY AFTERNOON, BUT AGAIN, NOT EVERYONE SEES MEASURABLE  
RAINFALL. WHILE INCREASED INSTABILITY AND FORCING IS EXPECTED,  
ORGANIZED SEVERE WEATHER IS NOT IN THE CARDS RIGHT NOW.  
TEMPERATURES WILL BE NEAR TO SLIGHTLY ABOVE AVERAGE FOR EARLY  
AUGUST, WITH TOTAL QPF ONLY AMOUNTING TO ONE OR TWO-TENTHS OF AN  
INCH (ON AVERAGE) THROUGH WEDNESDAY.  
 

 
   
AVIATION
 
 
18Z TAF DISCUSSION.  
 
VFR CONDITIONS WITH NORTHERLY WINDS LESS THAN 10 KTS EXPECTED  
TODAY. WILL INCLUDE SOME VCTS FOR CSV AS THE BEST CHANCE FOR ANY  
SHOWERS OR THUNDERSTORMS WILL BE CONFINED TO THE PLATEAU THIS  
AFTERNOON AND EVENING. WINDS BECOMING LIGHT OVERNIGHT. CIGS AND  
VIS COULD BECOME MVFR/IFR AT CKV AND CSV DUE TO LIGHT FOG.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
NASHVILLE 65 87 65 90 67 / 0 10 0 0 0  
CLARKSVILLE 62 83 62 86 65 / 0 0 0 0 0  
CROSSVILLE 63 82 62 84 63 / 20 40 10 10 0  
COLUMBIA 65 87 64 90 66 / 0 10 0 0 0  
LAWRENCEBURG 65 87 64 90 66 / 10 10 0 10 0  
WAVERLY 63 84 63 88 66 / 0 0 0 0 0  
 

 
   
OHX WATCHES/WARNINGS/ADVISORIES
 
 
NONE.  
 

 
 

 
 
DISCUSSION......SCHAPER  
AVIATION........12  
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab TN Page Main Text Page