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St. Louis Storm Line Sets Its Sights On East Tennessee Tonight

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Published on June 01, 2026
St. Louis Storm Line Sets Its Sights On East Tennessee TonightSource: US National Weather Service Morristown Tennessee

A fast-moving cluster of thunderstorms that rolled out of the Midwest early Monday is now on the radar for a possible late-afternoon hit to parts of East Tennessee, local emergency officials warned. The line could slide in during the evening commute and bring damaging straight-line winds and hail, with residents across Cocke County and neighboring areas urged to brace for sudden severe weather between about 3 p.m. and 8 p.m.

According to the Cocke County Emergency Management Agency, the storm cluster was located near St. Louis early Monday and "could pass to the southwest of the region" while still posing a risk to East Tennessee. The post noted that "we are watching this cluster" and listed the main timing window as roughly 3 p.m. to 8 p.m. local time, urging residents to keep an eye on local forecasts. That Facebook post served as the initial local alert.

Forecasters in East Tennessee are sounding similar notes of caution. According to NWS Morristown, isolated to scattered thunderstorms are expected this afternoon and evening, with damaging wind gusts and large hail flagged as the primary hazards. The office stresses the importance of spotter reports and watching updated radar for short-fuse warnings that can pop up quickly.

Where the Cluster Formed and Where It May Go

A line of strong storms swept across central Missouri early Monday, prompting warnings and watches from St. Louis-area forecast offices before angling east-southeast. Products from NWS St. Louis showed clusters lined up along an axis from near Trenton through Brookfield and Keytesville, while national outlooks highlighted a broader severe-risk corridor stretching into the Tennessee Valley. Meteorologists point to a passing cold front working with abundant Gulf moisture to fuel the threat across the region, according to WeatherBug.

How To Stay Safe

When severe storms are on the table, the safest bet is to have a plan and at least two reliable ways to get short-term warnings. NWS Morristown recommends moving vehicles under cover ahead of time, securing loose outdoor items, and heading indoors away from windows if a severe thunderstorm warning is issued. Watches mean conditions are favorable, so treat them as your cue to be ready to act fast.

Officials also advise keeping a battery-powered weather radio or enabling wireless emergency and weather alerts on your phone, and to never drive through flooded roadways, no matter how shallow they look.

Local emergency managers say they will post updates as conditions evolve and are asking residents to follow official channels for the latest warnings. We will continue to track forecasts and update this story as new information becomes available.