636
FXUS64 KMRX 301744
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
1244 PM EST TUE DEC 30 2025
..NEW DISCUSSION, AVIATION
KEY MESSAGES
UPDATED AT 1239 PM EST TUE DEC 30 2025
- SNOW SHOWERS INCREASINGLY LIKELY FOR SOUTHWEST VA AND NORTHEAST TN
WEDNESDAY NIGHT INTO THURSDAY MORNING. LIGHT ACCUMULATIONS PROBABLE.
- MODERATING TEMPERATURES THROUGH THE END OF THE WEEK.
- NEXT ROUND OF PRECIP BY FRIDAY INTO EARLY SATURDAY, MAINLY SOUTH
OF I-40.
DISCUSSION
ISSUED AT 1239 PM EST TUE DEC 30 2025
ANOTHER COLD NIGHT IN STORE WITH OVERNIGHT LOWS IN THE LOW TO MID
20S FOR MOST AREAS. IF IT WEREN'T FOR THE LIGHT WINDS AND HIGH
CLOUDS MOVING IN, WE WOULD SEE EVEN COLDER TEMPS.
A WARMING TREND BEGINS TOMORROW WITH HIGHS GETTING BACK INTO THE
40S. A QUICK AROUND ROUND OF LIGHT SNOW SHOWERS LOOKS
INCREASINGLY MORE LIKELY ACROSS SOUTHWEST VA AND EXTREME NORTHEAST
TN LATE WEDNESDAY NIGHT INTO THURSDAY MORNING. HREF PROBS SHOW
MODERATE PROBABILITIES TO SEE UP TO 0.5 INCHES ACROSS PORTIONS OF
WISE, RUSSELL, AND WASHINGTON COUNTY VA, AND PERHAPS EVEN JOHNSON
AND CARTER COUNTY TN. MINOR TRAVEL IMPACTS ARE POSSIBLE DURING THE
THURSDAY MORNING COMMUTE. SNOW SHOWERS SHOULD COME TO AN END BY
EARLY TO MID AFTERNOON.
MODELS HAVE TRENDED FURTHER SOUTH WITH THE FRIDAY/SATURDAY SYSTEM.
THE MORE LIKELY AREAS TO NOW SEE RAINFALL WILL BE ACROSS OUR
SOUTHERN AREAS, ESPECIALLY THE CLOSER YOU GET TO THE TN/AL/GA STATE
LINES AND AS WELL AS SOUTHWEST NC. AREAS NORTH OF I-40 MAY END UP
BEING COMPLETELY DRY. THE CURRENT QPF FORECAST FOR OUR SOUTHERN
AREAS IS AROUND 0.5 INCHES, AROUND 0.1 INCHES FOR KNOXVILLE, AND
NONE FOR NORTHEAST TN AND SOUTHWEST VA.
THE WEEKEND AND INTO NEXT WEEK CONTINUES TO LOOKS MOSTLY DRY ALONG
WITH MILD TEMPERATURES. ANY LINGERING RAIN FROM FRIDAY NIGHT SHOULD
EXIT BY LATE SATURDAY MORNING.
AVIATION
(18Z TAFS)
ISSUED AT 1239 PM EST TUE DEC 30 2025
ONCE TRI GOES VFR HERE IN THE NEXT FEW HOURS, VFR CONDITIONS ARE
EXPECTED AT ALL SITES THROUGH THE REMAINDER OF THE FORECAST. TRI
MAY SEE WINDS GUSTING TO AROUND 20KTS FOR THE NEXT FEW HOURS BUT
WSAN'T CONFIDENT ENOUGH TO INCLUDE IN TAFS.
PRELIMINARY POINT TEMPS/POPS
CHATTANOOGA AIRPORT, TN 25 50 30 55 / 0 0 0 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 24 46 30 49 / 0 0 0 0
OAK RIDGE, TN 23 46 29 49 / 0 0 0 0
TRI CITIES AIRPORT, TN 21 41 29 43 / 0 0 10 0
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE.
TN...NONE.
VA...NONE.
DISCUSSION...99
AVIATION...99
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