171
FXUS64 KMRX 071821
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
221 PM EDT TUE APR 7 2026
..NEW DISCUSSION
KEY MESSAGES
UPDATED AT 219 PM EDT TUE APR 7 2026
- DRY WEATHER IS EXPECTED FOR THE FORECAST PERIOD.
- SEASONABLY COOL INTO WEDNESDAY, FOLLOWED BY A STRONG WARMING
TREND.
DISCUSSION
ISSUED AT 219 PM EDT TUE APR 7 2026
CANADIAN HIGH PRESSURE CURRENTLY CENTERED TO OUR NORTH WILL
CONTINUE TO EXTEND INTO OUR AREA AS IT SLIDES EAST THROUGH
WEDNESDAY. THIS HIGH IS PROVIDING DRY AND SEASONABLY COOL
CONDITIONS. PATCHY FROST WILL BE POSSIBLE LATE TONIGHT ESPECIALLY
IN NORMALLY COLDER OUTLYING VALLEY AREAS, WITH THE HIGHEST CHANCE
FOR FROST ACROSS THE NORTH. TEMPERATURES IN THESE LOCATIONS WILL
LIKELY DIP INTO THE MID TO UPPER 30S. AND A FEW SPOTS IN THE NORTH
WILL BOTTOM OUT AROUND FREEZING. RELATIVE HUMIDITY VALUES ARE LOW
THIS AFTERNOON AND WILL BE LOW AGAIN WEDNESDAY AFTERNOON,
BOTTOMING OUT IN THE 20S IN MOST LOCATIONS. HIGH TEMPERATURES
WEDNESDAY WILL BE CLOSE TO NORMAL FOR THIS TIME OF YEAR.
HEIGHTS WILL BE RISING THURSDAY AND HIGH PRESSURE WILL CONTINUE TO
EXTEND INTO THE AREA. A FEW LOCATIONS MAINLY NORTH MAY SEE PATCHY
FROST AGAIN LATE WED NIGHT, BUT AFTER A CHILLY START THURSDAY
TEMPERATURES IN MOST VALLEY LOCATIONS WILL RISE INTO THE 70 TO 75
RANGE SIGNALING THE START OF A STRONG WARMING TREND. TEMPERATURES
ARE EXPECTED TO CLIMB WELL ABOVE NORMAL BY THE SATURDAY THROUGH
TUESDAY TIME FRAME WITH MOST VALLEY LOCATIONS SEEING HIGHS IN THE
LOWER TO MID 80S. RELATIVE HUMIDITY VALUES WILL BE LOW EACH
AFTERNOON AT LEAST INTO THE WEEKEND. MODELS GENERALLY AGREE THAT WE
WILL SEE THE DRY CONDITIONS CONTINUE THROUGH THE WEEKEND INTO EARLY
NEXT WEEK. HOWEVER, SOME MODELS SHOW A WEAK AND MOISTURE STARVED
COLD FRONT POSSIBLY MAKING IT FAR ENOUGH SOUTH TO BRING A FEW LIGHT
SHOWERS TO OUR NORTHERN AREAS AROUND THE SATURDAY TIME FRAME.
HOWEVER, RIGHT NOW THIS LOOKS LIKE A MINORITY SOLUTION AND THE
WEEKEND IS LIKELY TO STAY DRY. BY TUESDAY, A SYSTEM APPROACHING FROM
THE WEST MAY BE CLOSE ENOUGH TO BRING A FEW SHOWERS OR STORMS, BUT
AGAIN THE PROBABILITY OF PRECIPITATION LOOKS QUITE LOW AT THIS
TIME.
AVIATION
(18Z TAFS)
ISSUED AT 1222 PM EDT TUE APR 7 2026
VFR CONDITIONS EXPECTED FOR THE PERIOD ALL SITES. WINDS WILL BE
NORTH AND NORTHEAST AROUND 10KTS OR LESS EARLY WITH A FEW HIGHER
GUSTS ESPECIALLY AT CHA, THEN WINDS WILL BECOME LIGHT.
PRELIMINARY POINT TEMPS/POPS
CHATTANOOGA AIRPORT, TN 44 72 46 75 / 0 0 0 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 39 71 43 73 / 0 0 0 0
OAK RIDGE, TN 40 72 43 73 / 0 0 0 0
TRI CITIES AIRPORT, TN 33 67 36 71 / 0 0 0 0
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE.
TN...NONE.
VA...NONE.
DISCUSSION...99
AVIATION...99
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page