794  
FXUS64 KMRX 271138  
AFDMRX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE MORRISTOWN TN  
638 AM EST THU NOV 27 2025  
   
..NEW AVIATION  
 
   
KEY MESSAGES  
 
UPDATED AT 634 AM EST THU NOV 27 2025  
 
- DRY AND COLDER THROUGH SATURDAY.  
 
- RAIN RETURNS BY SUNDAY, WITH ACTIVE/RAINY WEATHER CONTINUING INTO  
THE FIRST PART OF NEXT WEEK.  
 
 
   
DISCUSSION  
 
ISSUED AT 114 AM EST THU NOV 27 2025  
 
COLD AND DRY WEATHER IS EXPECTED THROUGH SATURDAY AS HIGH PRESSURE  
BRINGS CANADIAN AIR INTO THE SOUTHEAST. THE DEEP TROUGH OVER THE  
EASTERN U.S. WILL START TO MOVE OUT ON FRIDAY. TEMPS WILL BE MUCH  
COLDER TODAY THROUGH THE WEEKEND. FRIDAY WILL BE THE COLDEST DAY  
WITH HIGHS IN THE UPPER 30S AND LOWER 40S FOR MUCH OF THE VALLEY.  
DRY WEATHER WILL CONTINUE ON SATURDAY WITH NEARLY ZONAL FLOW ALOFT.  
RAIN CHANCES RETURN SATURDAY NIGHT AND SUNDAY AS A LOW MOVES THROUGH  
THE GREAT LAKES BRINGING A COLD FRONT THROUGH THE REGION SUNDAY  
NIGHT. THE BULK OF THE ENERGY WITH THE SHORTWAVE WILL BE TO THE  
NORTH IN THE OHIO VALLEY. MOSTLY RAIN IS EXPECTED WITH THIS SYSTEM  
BUT WITH COLD TEMPS IN PLACE SOME MIXED PRECIP OR LIGHT SNOW IS  
POSSIBLE AT ONSET IN THE HIGHER ELEVATIONS AND NORTHERN AREAS.  
 
STRONG WINDS ARE POSSIBLE AGAIN IN THE EAST TENNESSEE MOUNTAINS  
AND FOOTHILLS SATURDAY NIGHT AHEAD OF THIS SYSTEM WITH A WIND  
DIRECTION FAVORABLE FOR DOWNSLOPE. A WIND ADVISORY MAY BE NEEDED  
FOR THE MOUNTAINS WITH A LOW LEVEL JET MOVING INTO THE REGION  
BRINGING 850 MB WINDS AROUND 40 KNOTS.  
 
NBM HAS LOW PRECIP CHANCES MONDAY THROUGH TUESDAY NIGHT. IT LOOKS TO  
ME LIKE THE BEST CHANCE FOR PRECIP WILL BE MONDAY NIGHT INTO TUESDAY  
AS A LOW MOVES EITHER ALONG THE GULF COAST OR THROUGH THE SOUTHEAST.  
ENSEMBLE PROBABILITIES ARE LOW FOR SNOW ACCUMULATION BUT WE WILL  
DEFINITELY HAVE TO MONITOR THE TRACK AND STRENGTH OF THIS SYSTEM  
SINCE WE WILL HAVE COLD AIR STILL IN PLACE EARLY NEXT WEEK.  
 
 
   
AVIATION  
 
(12Z TAFS)  
ISSUED AT 634 AM EST THU NOV 27 2025  
 
VFR CONDITIONS PREVAIL FOR THE TAF CYCLE. MID-LEVEL CLOUDS AND  
WEST TO NORTHWEST WINDS AROUND 10 KNOTS CAN BE EXPECTED THROUGH  
THE AFTERNOON. OCCASIONAL GUSTS AROUND 20KTS POSSIBLE AT TRI/TYS.  
SKIES CLEAR OUT WITH WINDS BECOMING LESS THAN 10 KNOTS LATER THIS  
EVENING.  
 
 
   
PRELIMINARY POINT TEMPS/POPS  
 
CHATTANOOGA AIRPORT, TN 49 28 46 26 / 0 0 0 0  
KNOXVILLE MCGHEE TYSON AIRPORT, TN 45 24 42 23 / 0 0 0 0  
OAK RIDGE, TN 45 23 42 22 / 0 0 0 0  
TRI CITIES AIRPORT, TN 42 21 37 19 / 0 0 0 0  
 
 
   
MRX WATCHES/WARNINGS/ADVISORIES  
 
NC...NONE.  
TN...NONE.  
VA...NONE.  
 
 
 
 
DISCUSSION...MCD  
AVIATION...99  
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