textproduct: Morristown
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
Updated at 722 AM EDT Tue Sep 8 2026 - Dry conditions return for Tuesday and Wednesday.
- Scattered to numerous showers and storms possible Thursday and Friday.
DISCUSSION
Issued at 131 AM EDT Tue Sep 8 2026
The inverted surface trough that helped spark some showers in our southern half on Monday will be pushed away to the NW as high pressure over the Mid Atlantic moves southward to the Outer Banks. Aloft, a 500 mb ridge will reestablish itself over the region today, leading to dry conditions across the area through Wednesday, with above normal temperatures.
The midlevel ridge gets suppressed southward on Thursday as a broad, positively-tilted trough drops into the Great Lakes region. Convection along the associated cold front will move across KY Thursday, possibly reaching our KY border counties by late afternoon. With the front remaining to our north, along with the midlevel vort max and upper jet streak, convection will likely be weakening as it moves into our area in the evening along a pre- frontal trough or outflow boundary. Instability is not particularly impressive, so the potential for any strong to severe storms looks low at this time. The nearly zonal midlevel flow parallels the surface front, so it will likely stall to our north. The position of the front with weak troughing to our west will keep some scattered to numerous in the area through Friday.
The weekend looks to start off with a weak trough over the MS River possibly bringing shower and storm activity Saturday. A building ridge across the Southeast may bring a drier pattern next week, with temperatures continuing above normal.
AVIATION
(12Z TAFS) Issued at 722 AM EDT Tue Sep 8 2026
Dry weather expected through the TAF period. Overall, mid to high clouds and light & variable winds with a general E to SE direction.
PRELIMINARY POINT TEMPS/POPS
Chattanooga Airport, TN 92 69 94 70 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 90 67 91 68 / 0 0 0 0 Oak Ridge, TN 89 66 90 67 / 0 0 0 0 Tri Cities Airport, TN 86 61 87 63 / 0 0 0 0
MRX WATCHES/WARNINGS/ADVISORIES
NC...NONE. TN...NONE. VA...NONE.
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