NOAA Current Watches-WA

* WHAT...Very cold wind chills of 15 to 20 degrees expected. * WHERE...Western Whatcom County. * WHEN...From 9 PM this evening to 10 AM PST Saturday. * IMPACTS...Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Very cold temperatures will impact vulnerable populations such as the homeless, pets, and those without adequate access to heating.

* WHAT...Northwest winds 30 to 35 mph with gusts up to 50 to 55 mph. * WHERE...Kittitas Valley. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Patches of dense fog and freezing fog will continue into the early afternoon. Visibilities of less than 1/2 mile are possible in spots, especially along Highway 11 near Athena, Interstate 84 near Pendleton and in portions of Walla Walla. Drivers should expect sudden reductions in visibility. Slow down and allow for extra space between yourself and other vehicles if you encounter dense fog.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Harrington, Creston, Grand Coulee, Coulee City, Ritzville, Odessa, and Wilbur. * WHEN...Until noon PST today. * IMPACTS...Low visibility will make driving conditions hazardous. Freezing temperatures could lead to slick conditions on untreated roadways.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portland Metro Hills, Tualatin Valley, Cascade Foothills of Marion and Linn Counties, and North Clark County Lowlands. * WHEN...Until 1 PM PST this afternoon. * IMPACTS...Low visibility could make driving conditions hazardous.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Harrington, Wilbur, Creston, Ritzville, Coulee City, Grand Coulee, and Odessa. * WHEN...Until 10 AM PST this morning. * IMPACTS...Low visibility will make driving conditions hazardous. Freezing temperatures could lead to slick conditions on untreated roadways.

Patchy dense freezing fog will continue into late evening hours across the Blue Mountain Foothills of WA and OR. Visibilities of less than 1/2 mile are possible in spots, especially along Highway 11 near Athena, Interstate 84 near Pendleton and in portions of Walla Walla. Drivers should expect sudden reductions in visibility. Slow down and allow for extra space between yourself and other vehicles if you encounter dense fog.

Patchy dense freezing fog will continue into late evening hours across the Blue Mountain Foothills of WA and OR. Visibilities of less than 1/2 mile are possible in spots, especially along Highway 11 near Athena, Interstate 84 near Pendleton and in portions of Walla Walla. Drivers should expect sudden reductions in visibility. Slow down and allow for extra space between yourself and other vehicles if you encounter dense fog.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Quincy, Harrington, Grand Coulee, Ritzville, Ephrata, Moses Lake, Creston, Wilbur, Othello, Odessa, and Coulee City. * WHEN...Until 8 AM PST Thursday. * IMPACTS...Low visibility will make driving conditions hazardous. Freezing temperatures could lead to slick conditions on untreated roadways. * ADDITIONAL DETAILS...Spotters have reported visibility as low as 1/8 mile near Moses Lake and Warden.

Patchy dense freezing fog will continue into early evening hours across the Blue Mountain Foothills. Visibilities of less than 1/2 mile are possible in spots, especially along Highway 11 near Weston, Interstate 84 near Pendleton and in portions of Walla Walla. Drivers should expect sudden reductions in visibility. Slow down and allow for extra space between yourself and other vehicles if you encounter dense fog.

Patchy dense freezing fog has been observed across north central Oregon as well as the Lower Columbia Basin of Oregon and the Blue Mountain Foothills. The visibility is less than one half mile in places. This includes Highway 11 near Weston, Interstate 84 between Pendleton and Hermiston and portions of Walla Walla. Drivers should expect sudden reductions in visibility. Slow down and allow for extra space between yourself and other vehicles if you encounter dense fog.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portland Metro Lowlands, Greater Vancouver Metro, and Portland West Hills and Chehalem Mountain. * WHEN...Until noon PST today. * IMPACTS...Low visibility could make driving conditions hazardous.

* WHAT...Visibility one quarter to one half mile in freezing fog. * WHERE...Foothills of the Blue Mountains of Washington. * WHEN...Until noon PST today. * IMPACTS...Low visibility could make driving conditions hazardous. Slick spots on roadways possible under freezing fog.

* WHAT...Visibility one quarter to one half mile in freezing fog. * WHERE...Lower Columbia Basin of Washington. * WHEN...Until noon PST today. * IMPACTS...Low visibility could make driving conditions hazardous. Slick spots on roadways possible under freezing fog.

Dense freezing fog across Walla Walla county is slowly expanding west towards the Columbia River and the Tri-Cities area, with low visibilities being observed near the confluence of the Snake and Columbia Rivers. This area of fog is expected to gradually extend west through the overnight hours, with visibilities of one half mile or less expected.

* WHAT...Visibility one quarter mile or less in freezing fog. * WHERE...Foothills of the Blue Mountains of Washington. * WHEN...Until noon PST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. Slick spots on roadways possible under freezing fog.

* WHAT...Visibility one quarter mile or less in freezing fog. * WHERE...Foothills of the Blue Mountains of Washington. * WHEN...Until noon PST Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. Slick spots on roadways possible under freezing fog.

Patchy dense freezing fog has been observed in the Walla Walla Valley and the Washington side of the Lower Columbia Basin. This includes Highway 12 from Walla Walla to Pasco. Drivers should expect a sudden reduction in visibility as well as black ice on the roadways.

Patchy dense freezing fog has been observed in the Walla Walla Valley and the Washington side of the Lower Columbia Basin. This icnludes Highway 12 from Walla Walla to Pasco. Drivers should expect a sudden reduction in visibility as well as black ice on the roadways.

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...Until 6 PM PST this evening. * IMPACTS...Waves can run up significantly farther on a beach than normal, including over rocks and jetties. Sneaker waves can suddenly knock people off of their feet and quickly pull them into the frigid ocean which may lead to serious injury or drowning.