164  
FXUS64 KMRX 051817  
AFDMRX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MORRISTOWN TN  
217 PM EDT SUN APR 5 2026  
   
..NEW DISCUSSION
 
 
   
KEY MESSAGES
 
 
UPDATED AT 213 PM EDT SUN APR 5 2026  
 
- DRY WEATHER THIS WEEK AND THROUGH THE UPCOMING WEEKEND.  
 
- COOLER TO START THE PERIOD, WITH A WARMING TREND FOR WEDNESDAY  
THROUGH THE WEEKEND.  
 

 
   
DISCUSSION
 
 
ISSUED AT 213 PM EDT SUN APR 5 2026  
 
CURRENTLY, COOLER AND DRIER AIR CONTINUES TO FILTER IN BEHIND THE  
DEPARTED COLD FRONT AS SURFACE HIGH PRESSURE BUILDS IN FROM THE  
WEST. A RATHER UNEVENTFUL WEATHER WEEK LOOKS TO BE ON TAP FOR THIS  
FORECAST PERIOD. HIGH PRESSURE WILL REMAIN IN CONTROL THROUGH  
MONDAY, THEN A MOISTURE STARVED COLD FRONT WILL APPROACH LATE MONDAY  
AND PUSH THROUGH OUR AREA MONDAY NIGHT INTO TUESDAY BEFORE WASHING  
OUT. NO PRECIPITATION IS EXPECTED WITH THIS FRONT, BUT ANOTHER SHOT  
OF COOLER AIR WILL MOVE IN BEHIND IT. WE WILL START THE WEEK WITH  
TEMPERATURES AROUND OR EVEN SLIGHTLY BELOW SEASONAL NORMALS AND  
THERE MAY BE SOME LATE NIGHT/EARLY MORNING PATCHY FROST IN A FEW  
AREAS DURING THE NEXT FEW NIGHTS, ESPECIALLY NORTH, WITH THE COLDEST  
NIGHT LIKELY TO BE TUESDAY NIGHT.  
 
RELATIVE HUMIDITY VALUES WILL BE LOW EACH DAY AS WELL OVER THE NEXT  
SEVERAL DAYS, WITH MINIMUM VALUES LIKELY DIPPING AT LEAST AS LOW AS  
THE UPPER 20S AND 30S EACH AFTERNOON ACROSS MUCH OF THE AREA.  
 
HIGH PRESSURE WILL CONTINUE TO KEEP US DRY FOR THE REMAINDER OF THE  
PERIOD THROUGH SUNDAY, ALONG WITH A WARMING TREND BEGINNING  
WEDNESDAY AND CONTINUING THROUGH THE UPCOMING WEEKEND. TEMPERATURES  
WILL BE BACK TO WELL ABOVE NORMAL BY THE WEEKEND.  
 

 
   
AVIATION
 
 
(18Z TAFS)  
ISSUED AT 116 PM EDT SUN APR 5 2026  
 
ANY BRIEF LOW CIGS AT TYS/TRI WILL QUICKLY CLEAR OUT WITH VFR  
CONDITIONS EXPECTED ALL SITES FOR THE REMAINDER OF THE PERIOD.  
MAY BE SOME FOG AROUND SUNRISE AT TRI BUT RIGHT NOW THE PROBABILITY  
OF OCCURRENCE LOOKS TOO LOW TO INCLUDE.  
 

 
   
PRELIMINARY POINT TEMPS/POPS
 
 
CHATTANOOGA AIRPORT, TN 44 70 45 71 / 0 0 0 0  
KNOXVILLE MCGHEE TYSON AIRPORT, TN 41 66 43 65 / 0 0 0 0  
OAK RIDGE, TN 40 68 41 66 / 0 0 0 0  
TRI CITIES AIRPORT, TN 37 63 39 60 / 0 0 0 0  
 

 
   
MRX WATCHES/WARNINGS/ADVISORIES
 
 
NC...NONE.  
TN...NONE.  
VA...NONE.  

 
 

 
 
DISCUSSION...99  
AVIATION...99  
 
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