045
FXUS64 KMRX 081819
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
219 PM EDT WED APR 8 2026
..NEW DISCUSSION
KEY MESSAGES
UPDATED AT 213 PM EDT WED APR 8 2026
- A SIGNIFICANT WARMING TREND IS EXPECTED THROUGH THE WEEKEND
WITH VERY WARM CONDITIONS THEN CONTINUING THROUGH WEDNESDAY.
- NO RAIN IS EXPECTED THROUGH TUESDAY WITH LOW RH'S FOR AT LEAST
THE NEXT FEW DAYS.
DISCUSSION
ISSUED AT 213 PM EDT WED APR 8 2026
WE START THE PERIOD WITH QUASI-ZONAL FLOW ALOFT AND STRONG
SURFACE HIGH PRESSURE EXTENDING INTO OUR AREA FROM THE EAST AND
NORTHEAST. HIGH PRESSURE WILL CONTINUE TO EXTEND OVER OUR AREA FOR
THE NEXT SEVERAL DAYS AND THE QUASI-ZONAL FLOW ALOFT WILL
EVENTUALLY GIVE WAY TO UPPER RIDGING DURING THE WEEKEND. WE WILL
CONTINUE TO SEE MAINLY DRY DAYS WITH LOW RELATIVE HUMIDITY VALUES
DURING THE AFTERNOONS EACH DAY AT LEAST THROUGH THE WEEKEND. WE
WILL ALSO SEE A WARMING TREND. TEMPERATURES ARE EXPECTED TO CLIMB
WELL ABOVE NORMAL BY THE SUNDAY THROUGH TUESDAY TIME FRAME WITH
MOST VALLEY LOCATIONS SEEING HIGHS IN THE LOWER TO MID 80S.
PRECIPITATION CHANCES ARE LOW AT BEST FOR THE PERIOD. A WEAK AND
MOISTURE STARVED COLD FRONT MAY SAG BRIEFLY SOUTH INTO OUR NORTHERN
AREAS THIS WEEKEND, AND A FEW NORTHERN SPOTS MAY SEE A SPRINKLE OR
LIGHT SHOWER SATURDAY ALTHOUGH CHANCES FOR MEASURABLE PRECIPITATION
LOOK LOW AND THE NBM CURRENTLY KEEPS THINGS PRECIP FREE. BY
WEDNESDAY A FRONT APPROACHING FROM THE WEST MAY BRING A BETTER
CHANCE FOR CONVECTION INTO THE AREA. HOWEVER, THE DETAILS THAT FAR
OUT ARE STILL MURKY AS MODEL CONSISTENCY HAS BEEN POOR, AND TRENDS
HAVE GENERALLY BEEN TO SLOW THE ARRIVAL OF PRECIPITATION FOR OUR
AREA.
AVIATION
(18Z TAFS)
ISSUED AT 1253 PM EDT WED APR 8 2026
VFR CONDITIONS ARE EXPECTED FOR THE PERIOD ALL SITES. WINDS WILL
BE SOUTHEAST AROUND 10 KTS OR LESS AT CHA EARLY IN THE PERIOD.
OTHERWISE, WINDS WILL GENERALLY BE LIGHT.
PRELIMINARY POINT TEMPS/POPS
CHATTANOOGA AIRPORT, TN 47 75 47 80 / 0 0 0 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 45 75 45 76 / 0 0 0 0
OAK RIDGE, TN 45 75 46 77 / 0 0 0 0
TRI CITIES AIRPORT, TN 38 72 41 75 / 0 0 0 0
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE.
TN...NONE.
VA...NONE.
DISCUSSION...99
AVIATION...99
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