Frost Advisory

Locations Affected

Pe Ell, WA ∙ Rainier, WA ∙ Littlerock, WA ∙ Riffe Lake, WA ∙ Napavine, WA ∙ Alder Lake, WA ∙ Brady, WA ∙ Lacey, WA ∙ Yelm, WA ∙ Chehalis Village, WA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Seattle WA 1248 AM PDT Tue Apr 7 2026 ...FROST ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT WEDNESDAY... * WHAT...Temperatures as low as 32 to 36 will result in frost formation. * WHERE...Middle Chehalis River Valley, Foothills and Valleys of Thurston and Lewis Counties, Lowlands of Lewis and Southern Thurston Counties, Olympia and Southern Puget Sound, and Willapa and Black Hills. * WHEN...From 11 PM this evening to 9 AM PDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold.

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