778
FXUS64 KMRX 081118
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
718 AM EDT WED APR 8 2026
..NEW AVIATION
KEY MESSAGES
UPDATED AT 714 AM EDT WED APR 8 2026
- A SIGNIFICANT WARMING TREND IS EXPECTED THROUGH THE WEEKEND WITH
HIGHS RISING WELL INTO THE 80S BY SUNDAY.
- NO RAIN IS EXPECTED THROUGH MONDAY WITH LOW RH'S FOR AT LEAST
THE NEXT COUPLE OF DAYS.
DISCUSSION
ISSUED AT 205 AM EDT WED APR 8 2026
CURRENTLY, QUASI-ZONAL FLOW IS IN PLACE ALOFT WITH 1,035MB HIGH
PRESSURE CENTERED OVER NEW ENGLAND. SUBSIDENCE WILL KEEP DRY AIR IN
PLACE WITH AN EVEN COOLER MORNING THAN PREVIOUS DAYS. THROUGHOUT THE
DAY, HIGH PRESSURE WILL SHIFT FURTHER TO THE EAST, INCREASING
SOUTHERLY FLOW. SLIGHT HEIGHT RISES WILL BEGIN A WARMING TREND WITH
TEMPERATURES RISING INTO THE 70S FOR MOST. LOW RH VALUES ARE
EXPECTED AGAIN, BUT WEAK 850MB FLOW AND MSLP GRADIENT WILL KEEP
WINDS MORE LIMITED IN OUR AREA. BY THURSDAY, FURTHER HEIGHT RISES
ARE EXPECTED WITH FAIRLY ZONAL FLOW REMAINING ALOFT. EVEN LOWER RH
VALUES IN THE 20S CAN BE EXPECTED, BUT LOW-LEVEL FLOW AND THE MSLP
GRADIENT WILL REMAIN WEAK.
BY FRIDAY INTO SATURDAY, A TROUGH/CLOSED LOW WILL MOVE ONSHORE FROM
THE PACIFIC WITH INCREASING RIDGING AND ANOTHER AREA OF HIGH
PRESSURE IN THE EAST. THIS WILL FURTHER THE WARMING TREND WITH HIGH
TEMPERATURES LIKELY RISING INTO THE 80S FOR MOST BY SATURDAY. ON
SUNDAY, TROUGHING WILL MOVE THROUGH THE ROCKIES WITH AN INITIAL
SURFACE LOW DEVELOPING IN THE NORTHERN GREAT PLAINS AND THEN
TRACKING INTO CANADA. THIS WILL INCREASE SOUTHERLY FLOW AND HEIGHT
RISES IN THE EASTERN U.S. WITH MUCH OF THE AREA RISING WELL INTO THE
80S. HIGH PRESSURE TO THE EAST WILL KEEP DRY CONDITIONS IN PLACE IN
OUR AREA. BY MONDAY, TROUGHING WILL DIG DOWN AS IT EJECTS OUT OF THE
ROCKIES WITH ANOTHER SURFACE LOW/FRONTAL BOUNDARY EVENTUALLY MOVING
TOWARDS THE REGION. HIGH PRESSURE AND SOUTHERLY FLOW WILL KEEP WARM
AND DRY CONDITIONS IN PLACE ON MONDAY BEFORE RAIN CHANCES RETURN FOR
TUESDAY.
AVIATION
(12Z TAFS)
ISSUED AT 714 AM EDT WED APR 8 2026
VFR AND DRY TO PERSIST. A FEW GUSTS 15 TO 20 KNOTS POSSIBLE NEAR
KCHA TODAY WHERE THE STRONGEST WINDS ALOFT ARE LOCATED. ELSEWHERE
WIND FIELDS ARE REALLY WEAK, AND SO LIGHT WINDS ARE FORECAST. HIGH
CIRRUS IS MOVING OVERHEAD THIS MORNING AND SHOULD CONTINUE TO DO
SO.
PRELIMINARY POINT TEMPS/POPS
CHATTANOOGA AIRPORT, TN 73 47 75 46 / 0 0 0 0
KNOXVILLE MCGHEE TYSON AIRPORT, TN 71 45 73 45 / 0 0 0 0
OAK RIDGE, TN 72 46 74 45 / 0 0 0 0
TRI CITIES AIRPORT, TN 67 38 71 40 / 0 0 0 0
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE.
TN...NONE.
VA...NONE.
DISCUSSION...BW
AVIATION...WELLINGTON
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page