033 FXUS64 KMRX 302337 AFDMRXArea Forecast Discussion National Weather Service Morristown TN 737 PM EDT Tue Sep 30 2025
...New AVIATION...
.KEY MESSAGES... Updated at 721 PM EDT Tue Sep 30 2025
- Scattered showers and a few thunderstorms are possible, primarily along and near the Southern Appalachian Mountains.
- Dry slightly cooler weather is expected the remainder of the week.
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.DISCUSSION... Issued at 121 PM EDT Tue Sep 30 2025
Currently increased cloudiness and a few isolated showers in the vicinity of the Appalachian mountains as enhanced moisture from Imelda merges with troughing over the eastern seaboard of the United States. We will continue to see showers in the region, and eventually a few isolated thunderstorms during the hottest part of the afternoon as storms slowly make their way south/southwestward today. No major impacts are expected from any of the storms today into tonight. Area`s that get a decent shower could see some patchy fog overnight with skies expected to begin and clear out overnight.
The rest of the week looks to be pretty quiet weather-wise with broad ridging setting up which will lead to sunnier skies. Max temperatures will generally hover in the upper 70`s to lower 80`s under this set up with lows dropping into the 50`s for most.
Rain chances return to the forecast at the end of the weekend into next week as Gulf moisture finally makes a move further north along with a boundary.
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.AVIATION... (00Z TAFS) Issued at 721 PM EDT Tue Sep 30 2025
Scattered light rain showers to dissipate in the next couple of hours, and skies will clear late overnight. Patchy fog by morning, especially for valley locations that saw rain. IFR to LIFR conditions possible at KTRI, should the terminal get fog. Past 14z, fog will scatter, and dry conditions for nearly the whole area with light winds and VFR will be predominant through the remainder of the period.
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.PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 65 86 62 82 / 20 0 0 0 Knoxville McGhee Tyson Airport, TN 62 84 59 80 / 10 0 0 0 Oak Ridge, TN 61 84 58 80 / 10 0 0 0 Tri Cities Airport, TN 57 81 53 76 / 10 0 0 0
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.MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. &&
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DISCUSSION...99 AVIATION...Wellington
NWS MRX Office Area Forecast Discussion