A Severe Thunderstorm Warning is in effect for Mendocino and Trinity Counties in California, according to the National Weather Service (NWS). The warning is active until 6:15 PM PDT on September 16, 2026.

The warning covers North Central Mendocino County and Southern Trinity County. At 5:30 PM PDT, a severe thunderstorm was located 15 miles northwest of Covelo, moving southwest at 10 mph.

A Severe Thunderstorm Warning indicates that the storm may produce hazardous weather conditions. In this case, the storm is expected to produce quarter-size hail, which could damage vegetation.

For safety, residents should seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing large hail. In case of an emergency, call 911. Follow instructions from the NWS and local authorities.