750
FXUS64 KMRX 270639
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
239 AM EDT TUE OCT 27 2026
..NEW DISCUSSION, AVIATION
KEY MESSAGES
UPDATED AT 231 AM EDT TUE OCT 27 2026
- DRY WEATHER WILL CONTINUE OVER THE FORECAST PERIOD WITH COOL
MORNINGS AND MILD AFTERNOON HIGHS.
- LOW RELATIVE HUMIDITY VALUES IN THE 30S TO UPPER 20S ARE ALSO
EXPECTED MOST DAYS BUT WITH LIGHT WINDS OVERALL.
DISCUSSION
ISSUED AT 231 AM EDT TUE OCT 27 2026
CURRENTLY, UPPER RIDGING IS IN PLACE ALOFT WITH BROAD SURFACE HIGH
PRESSURE ACROSS THE EASTERN U.S. THIS WILL CONTINUE THE SAME PATTERN
WE'VE HAD WITH MILD DAYTIME HIGHS AFTER A COOL MORNING TODAY. WITH
SLIGHTLY WARMER TEMPERATURES, RH VALUES ARE LIKELY TO DROP FURTHER
INTO THE 30S AND UPPER 20S DURING THE AFTERNOON. THE PATTERN WILL
REMAIN SIMILAR ON WEDNESDAY WITH RIDGING AND HIGH PRESSURE SHIFTING
FURTHER TO THE EAST. BY THURSDAY, RIDGING WILL BE FLATTENED WITH A
MORE ZONAL PATTERN ALOFT AND SURFACE HIGH PRESSURE REMAINING IN
PLACE.
BY FRIDAY, A SHORTWAVE WILL EJECT OUT OF THE ROCKIES WITH DOWNSTREAM
RIDGING INCREASING IN OUR REGION AGAIN. WITH CONTINUED HIGH
PRESSURE, SIMILARLY DRY AND MILD CONDITIONS ARE EXPECTED DURING THE
DAY AFTER A COOL MORNING. FOR HALLOWEEN, THE SHORTWAVE WILL APPROACH
FROM THE WEST WITH SURFACE HIGH PRESSURE STRENGTHENING TO OUR EAST.
THIS WILL LEAD TO RAIN CHANCES APPROACHING FROM THE WEST, BUT MOST
OF THE AREA STILL LOOKS DRY FOR THE NIGHT. DEPENDING ON EVOLUTION
AND THE MSLP GRADIENT, BREEZY CONDITIONS ARE POSSIBLE IN THE
MOUNTAINS. OTHERWISE, THE BEST CHANCES FOR RAIN WILL BE TOWARDS
SUNDAY, BUT OVERALL RAIN TOTALS WILL BE LIGHT.
AVIATION
(06Z TAFS)
ISSUED AT 231 AM EDT TUE OCT 27 2026
HIGH CLOUDS ARE CURRENTLY MOVING IN FROM THE WEST. SURFACE HIGH
PRESSURE AND UPPER LEVEL RIDGING WILL CONTINUE TO DOMINATE THE
PATTERN THROUGH THE NEXT 24 HOURS. THUS, LIGHT WINDS OR CALM
CONDITIONS AND DRY WEATHER CAN BE EXPECTED. A BRIEF PERIOD OF FOG
IS POSSIBLE AT BOTH TRI AND CHA LATER THIS MORNING BEFORE SUNRISE.
PRELIMINARY POINT TEMPS/POPS
CHATTANOOGA AIRPORT, TN 76 50 74 48 / 0 0 0 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 76 49 74 45 / 0 0 0 0
OAK RIDGE, TN 75 49 73 45 / 0 0 0 0
TRI CITIES AIRPORT, TN 75 44 72 43 / 0 0 0 0
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE.
TN...NONE.
VA...NONE.
DISCUSSION...BW
AVIATION...KS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page