


Regional Weather Synopsis
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
816 ABUS99 KMRX 210505 SYNMRX Regional Synopsis National Weather Service Morristown TN 105 AM EDT Thu Aug 21 2025 .SYNOPSIS... A few showers and storms are possible again today, mainly in eastern portions of the area. High temperatures will be in the 80s for most locations. Chances for showers and thunderstorms will increase again Friday into the weekend, ahead of an approaching frontal boundary that will bring much cooler temperatures to the region by next week. $$