WWUS76 KSEW 160617 NPWSEW URGENT - WEATHER MESSAGE National Weather Service Seattle WA 1117 PM PDT Wed Apr 15 2026 WAZ317>321-161600- /O.CON.KSEW.FZ.W.0001.260416T0800Z-260416T1600Z/ Olympia and Southern Puget Sound-Lowlands of Lewis and Southern Thurston Counties-Middle Chehalis River Valley-Willapa and Black Hills-Southern Hood Canal- Including Pe Ell, McCleary, Fords Prairie, Olympia, Montesano, Grand Mound, Skokomish, Tumwater, Rochester, Lacey, Chehalis, and Elma 1117 PM PDT Wed Apr 15 2026 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THURSDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Middle Chehalis River Valley, Southern Hood Canal, Lowlands of Lewis and Southern Thurston Counties, Olympia and Southern Puget Sound, and Willapa and Black Hills. * WHEN...Until 9 AM PDT Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ WAZ308-309-332-161600- /O.EXA.KSEW.FR.Y.0005.260416T0800Z-260416T1600Z/ Foothills and Valleys of Pierce and Southern King Counties- Foothills and Valleys of Thurston and Lewis Counties-Lower Chehalis River Valley- Including Lea Hill, Prairie Ridge, Hoquiam, Morton, Covington-Sawyer-w, South Hill, Maple Valley, Elk Plain, Enumclaw, Aberdeen, and Mossyrock 1117 PM PDT Wed Apr 15 2026 ...FROST ADVISORY IN EFFECT UNTIL 9 AM PDT THURSDAY... * WHAT...Temperatures as low as 32 to 36 will result in frost formation. * WHERE...Lower Chehalis River Valley, Foothills and Valleys of Pierce and Southern King Counties, and Foothills and Valleys of Thurston and Lewis Counties. * WHEN...Until 9 AM PDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ WAZ316-322>325-327-329-161600- /O.CON.KSEW.FR.Y.0005.260416T0800Z-260416T1600Z/ Lowlands of Pierce and Southern King Counties-Northern Hood Canal- Eastern Kitsap County-Port Townsend Area-Eastern Strait of Juan de Fuca-Lake Crescent Area Including US 101-Foothills of the Western and Southern Olympic Peninsula- Including Port Ludlow, Renton, Amanda Park, Forks, Bremerton, Humptulips, Beaver, Grisdale, Leland, Federal Way, Quinault, Port Townsend, Brinnon, Seabeck, Silverdale, Sequim, Holly, Kent, Tacoma, Quilcene, and Clearwater 1117 PM PDT Wed Apr 15 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THURSDAY... * WHAT...Temperatures as low as 32 to 36 will result in frost formation. * WHERE...Eastern Kitsap County, Eastern Strait of Juan de Fuca, Foothills of the Western and Southern Olympic Peninsula, Lake Crescent Area Including US 101, Northern Hood Canal, Port Townsend Area, and Lowlands of Pierce and Southern King Counties. * WHEN...Until 9 AM PDT Thursday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...Relatively clear skies, and colder temperatures, will promote frost development early Thursday morning. Isolated freeze conditions are possible in the coldest locations. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ 12