Medford, OR – Residents in Northern California and Southern Oregon should prepare for a chilly night as a frost advisory goes into effect Sunday evening.
According to the National Weather Service in Medford, the advisory covers Modoc County, northeast Siskiyou County, and the Klamath Basin, including cities such as Alturas, Tulelake, Dorris, and Klamath Falls. The alert runs from 8 p.m. Sunday, September 21, through 8 a.m. Monday, September 22.
Forecasters warn that temperatures could fall as low as 34 degrees, bringing the potential for frost formation. This could damage or kill sensitive plants if not properly covered or brought indoors.
The advisory comes as clear skies and light winds set up prime conditions for overnight cooling. Homeowners, gardeners, and farmers in the region are urged to take immediate steps to protect crops and outdoor vegetation.
The National Weather Service advises covering plants, moving potted items inside, and ensuring pets have warm shelter during the overnight period. Drivers may also see patchy frost in the early morning hours Monday, though no widespread travel impacts are expected.
This marks one of the first frost advisories of the season in Northern California and Southern Oregon, signaling the start of cooler fall nights.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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