textproduct: Morristown

KEY MESSAGES

Updated at 107 AM EDT Fri May 8 2026

- Cold temperatures expected this morning. Areas to the north and sheltered valleys in higher terrain may see patchy frost. See Special Weather Statement for details.

- Generally low rain chances through the forecast period, with the best chance early next week with a frontal system.

- Temperatures will range from just below normal to near normal through the period. Possible return of cold morning lows Tuesday.

DISCUSSION

Issued at 107 AM EDT Fri May 8 2026

The forecast period through next week can be characterized by longwave troughing dominating the east and ridging locked to the west. Our area will almost be smack dab in the middle of northern and southern stream disturbances, and that is evident looking at the sum of days 1 through 7 WPC QPF. The greatest moisture will remain to our south over the Gulf states and southeast. For the week, our area will generally exhibit zonal to northwesterly flow. It'll be dry today with a possible brush of isolated showers Saturday. Area wide rain tries to set up late Sunday into Monday, with the arrival of a frontal system. Thereafter, the forecast dries out with a potential northern system mid week or so.

Due to drier conditions and high pressure overhead this morning, clear skies, calm winds, and temperatures near or below 40 degrees, patchy frost development is possible across portions of the northeast and southwest Virginia. A Special Weather Statement through 9 am ET covers the counties we think may have the best shot. Much of the rest of the forecast area may be too warm, or not get the drier air in time. And clouds are actually streaming in across southern portions of the CWA, which would further inhibit stout decoupling. Under peak mixing later today, minimum RHs could sink into the 30s and 40s percent. Shouldn't be any increased fire weather threat due to recent rain and winds will be light this afternoon.

Once we warm later today, temperatures will be on an incline through Sunday. The aforementioned frontal system will send temperatures downward again Monday and especially early Tuesday, where lows that morning could return to the 30s and 40s again. Then a gradual recovery of temperatures until the end of the forecast period.

AVIATION

(06Z TAFS) Issued at 107 AM EDT Fri May 8 2026

TRI is expected to see dense fog develop in the next few hours, potentially dropping to 1/4SM and VV001 from 10-12Z. However, there are some clouds around 6 kft near the airport, and if these clouds expand, then the fog won't happen. At this time, based on satellite trends, the clouds are expected to stay to the south and east, allowing dense fog to develop in clear/calm conditions. Fog should lift around 13Z.

PRELIMINARY POINT TEMPS/POPS

Chattanooga Airport, TN 74 52 79 57 / 0 10 10 20 Knoxville McGhee Tyson Airport, TN 72 51 77 55 / 0 0 10 0 Oak Ridge, TN 72 50 77 54 / 0 0 10 0 Tri Cities Airport, TN 69 46 73 51 / 0 0 0 0

MRX WATCHES/WARNINGS/ADVISORIES

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