299
FXUS64 KMRX 180612
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
212 AM EDT SUN OCT 18 2026
..NEW DISCUSSION, AVIATION
KEY MESSAGES
UPDATED AT 131 AM EDT SUN OCT 18 2026
- COOL START TO THE WEEK WITH AREAS OF FROST THIS MORNING AND
AGAIN TONIGHT FOR PORTIONS OF THE CUMBERLAND PLATEAU, SOUTHWEST
VIRGINIA, NORTHEAST TENNESSEE, AND THE MOUNTAINS.
- DRY WEATHER DOMINATES THE REST OF THIS WEEK WITH A WARMING
TREND.
DISCUSSION
ISSUED AT 131 AM EDT SUN OCT 18 2026
THIS MORNING MAY HOLD THE COLDEST LOWS OF THE FORECAST WITH
TEMPERATURES RANGING FROM THE LOW 30S OVER THE HIGHER TERRAIN TO
UPPER 30S AND LOW 40S FOR THE CENTRAL AND SOUTHERN VALLEY. WINDS
HAVE CALMED UNDER SURFACE HIGH PRESSURE, WHICH WILL PROVIDE THE RIPE
ENVIRONMENT FOR FROST DEVELOPMENT. FROST IS LIKELY FOR PORTIONS OF
THE NORTHERN PLATEAU, SOUTHERN APPALACHIANS, NORTHEAST TN, AND
SOUTHWEST VA.
SLIGHT IMPROVEMENT IN TEMPERATURES FOR THIS AFTERNOON AND FROST
POTENTIAL INTO TOMORROW MORNING, WITH INCREASING HEIGHTS ALOFT
FOLLOWING THE DEEP TROUGH EXITING TO THE EAST. WINDS WILL BE MUCH
CALMER COMPARED TO YESTERDAY. MUCH OF THE COMING WEEK SYNOPTICALLY
CAN BE CHARACTERIZED BY OMEGA BLOCKING OVER THE CONUS; TROUGHING
OVER THE COASTS AND RIDGING IN THE MIDDLE OF THE COUNTRY. DRY
WEATHER WILL CONTINUE THROUGH THE REST OF THE FORECAST PERIOD WITH
TEMPERATURES EVENTUALLY RISING TO A FEW DEGREES ABOVE NORMAL.
AVIATION
(06Z TAFS)
ISSUED AT 131 AM EDT SUN OCT 18 2026
VFR TAFS THROUGH THE FORECAST PERIOD WITH CLEAR SKIES AND DRY
CONDITIONS. WINDS TO REMAIN LIGHT UNDER HIGH PRESSURE.
PRELIMINARY POINT TEMPS/POPS
CHATTANOOGA AIRPORT, TN 67 42 70 46 / 0 0 0 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 67 40 70 42 / 0 0 0 0
OAK RIDGE, TN 66 41 71 43 / 0 0 0 0
TRI CITIES AIRPORT, TN 66 36 70 38 / 0 0 0 0
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE.
TN...NONE.
VA...NONE.
DISCUSSION...KS
AVIATION...WELLINGTON
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