Station Name: COAST FORK WILLAMETTE R BLW COTTAGE GROVE DAM, OR
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 738 feet

Nearest Address:
75800 Reservoir Rd
Cottage Grove, OR 97424
Lane County

GPS Coordinates: 43.72067785, -123.0497994

Nearby Water Temperatures

Beach Hazards Statement issued February 9 at 12:33PM PST until February 15 at 10:00PM PST by NWS Portland OR

Effective: Mon February 9, 2026, 12:33 PM
Expires: Wed February 11, 2026, 4:00 PM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From late Thursday night through Sunday 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. * ADDITIONAL DETAILS...Caution should be used when in or near the water, especially those who will be razor clamming. Keep children and pets away from the surf zone. Keep off of jetties, rocks and logs near the surf zone. If you see someone swept into the sea do not swim in after them. Call 911 and keep an eye on them until help arrives.

Remain out of the water to avoid hazardous swimming conditions.

Dense Fog Advisory issued February 10 at 1:05AM PST until February 10 at 9:00AM PST by NWS Portland OR

Effective: Tue February 10, 2026, 1:05 AM
Expires: Tue February 10, 2026, 9:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central and Southern Willamette Valley, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, and North Clark County Lowlands. * WHEN...Until 9 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Fog may not be uniformly dense across the region and drivers should expect rapid changes in visibility on roadways. Dense fog is most likely to occur in sheltered valleys and near waterways including lakes and rivers. Locales less sheltered from wind may instead see low overcast skies where only hilltops experience reduced visibility.

If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.