750
FXUS64 KMRX 202326
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
726 PM EDT TUE OCT 20 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 721 PM EDT TUE OCT 20 2026
- DRY WEATHER DOMINATES THE FORECAST PERIOD, WITH COOL MORNINGS
AND PLEASANT AFTERNOONS EACH DAY. AFTERNOON RELATIVE HUMIDITY
WILL REMAIN ON THE LOWER SIDE AS WELL.
DISCUSSION
ISSUED AT 118 PM EDT TUE OCT 20 2026
MORNING FOG ALONG RIVERS AND LAKES WILL BE POSSIBLE AGAIN LATE
TONIGHT AS COLD AIR MOVES OVER WARM WATERS. THIS WILL PROBABLY
REPEAT EACH MORNING FOR THE NEXT SEVERAL DAYS. OTHERWISE, WE WILL
HAVE DRY AND SUNNY WEATHER FOR THE REMAINDER OF THE WEEK AS A
LARGE MID/UPPER RIDGE BUILDS TO OUR WEST IN A BLOCKING PATTERN,
AND GRADUALLY SHIFTS EAST.
ONE ADJUSTMENT TO THE FORECAST GRIDS WILL BE TO LOWER DEWPOINTS,
WHICH HAVE BEEN TOO HIGH IN THE NBM TODAY. WENT WITH NBM 10TH
PERCENTILE FOR THE DAYTIME HOURS THROUGH FRIDAY.
AVIATION
(00Z TAFS)
ISSUED AT 721 PM EDT TUE OCT 20 2026
HIGH CLOUDS WILL DISSIPATE OVER THE NEXT FEW HOURS. VFR CONDITIONS
WILL CONTINUE THIS TAF CYCLE. LIGHT NORTHEASTERLY WINDS WILL
BECOME MORE NORTHWESTERLY TOMORROW.
PRELIMINARY POINT TEMPS/POPS
CHATTANOOGA AIRPORT, TN 48 74 49 74 / 0 0 0 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 46 74 46 73 / 0 0 0 0
OAK RIDGE, TN 46 74 47 73 / 0 0 0 0
TRI CITIES AIRPORT, TN 42 71 42 70 / 0 0 0 0
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE.
TN...NONE.
VA...NONE.
DISCUSSION...DGS
AVIATION...MCD
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