textproduct: Morristown

KEY MESSAGES

Updated at 242 AM EDT Wed Jun 24 2026

- Patchy fog development likely tonight.

- Mostly dry weather can be expected Wednesday and Thursday, then chances for showers and storms will return to the forecast later in the week.

- A hot and drier pattern looks likely as we head into next week.

DISCUSSION

Issued at 242 AM EDT Wed Jun 24 2026

With the moistly clear sky and light winds, patchy fog development still looks likely later tonight.

Surface high pressure over the region will provide a rather pleasant day with plenty of sunshine and below normal temperatures Wednesday. Models are in very poor agreement and consistency in their handling of it, but short wave energy moving across the region Thursday will likely bring at least some high and/or mid clouds, and may brush southern or western areas with an isolated shower although the NBM keeps things dry. Temperatures Thursday will not be far from normal.

For Friday into the weekend, we will see quasi-zonal flow aloft and the potential for short wave energy to bring showers and storms, although the details and timing of these short wave features remains uncertain. Right now, the Friday/Saturday time frame looks to have the highest chances for showers and storms. The details are still too much in flux for any confidence in severe storm chances, although ensemble data continues to show a relatively weak signal overall for significant combined shear/CAPE although the stronger shear will likely be across our northern sections. This will continue to be monitored and more clarity on any severe threat will come as we get closer.

Some models show one more short wave clipping at least northern areas Sunday with additional showers and storms as the upper ridge begins to build over the area. This upper ridge will then provide drier and quite hot conditions for at least Monday and Tuesday, and likely beyond.

AVIATION

(06Z TAFS) Issued at 139 AM EDT Wed Jun 24 2026

Potential for early morning fog will be the main concern for TAFs. Greatest probability for MVFR or lower impacts will be at TRI. Higher uncertainty exists at TYS and CHA due to light cirrus streaming in aloft. Light winds less than 10kts for the period.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 85 66 89 70 / 0 0 10 10 Knoxville McGhee Tyson Airport, TN 83 63 88 69 / 0 0 0 0 Oak Ridge, TN 83 62 88 68 / 0 0 10 10 Tri Cities Airport, TN 81 58 86 65 / 0 0 0 0

MRX WATCHES/WARNINGS/ADVISORIES

NC...NONE. TN...NONE. VA...NONE.