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

Air Stagnation Advisory issued January 9 at 12:49AM PST until January 11 at 10:00AM PST by NWS Portland OR

Effective: Fri January 9, 2026, 12:49 AM
Expires: Sat January 10, 2026, 4:00 AM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, Portland West Hills and Chehalem Mountain, Inner Portland Metro, North Clark County Lowlands, and Inner Vancouver Metro. * WHEN...From 10 AM this morning to 10 AM PST Sunday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable.

Beach Hazards Statement issued January 9 at 12:46AM PST until January 12 at 4:00PM PST by NWS Portland OR

Effective: Fri January 9, 2026, 12:46 AM
Expires: Sat January 10, 2026, 4:15 AM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From 4 AM PST early this morning through Monday afternoon. * IMPACTS...Sneaker waves can run up significantly farther on a beach than normal, including over rocks, logs, 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.

Keep children and pets close and 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. Stay farther back from the ocean than you think is necessary.

Air Stagnation Advisory issued January 9 at 2:36PM PST until January 11 at 10:00AM PST by NWS Portland OR

Effective: Fri January 9, 2026, 2:36 PM
Expires: Sat January 10, 2026, 4:00 AM

* WHAT...Light winds and limited air movement will lead to a period of stagnant air conditions. * WHERE...Central and Southern Willamette Valley, Tualatin Valley, Portland West Hills and Chehalem Mountain, Inner Portland Metro, North Clark County Lowlands, and Inner Vancouver Metro. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Deteriorating air quality may cause issues for people with respiratory problems.

State air quality agencies highly recommend that no outdoor burning occur and that residential wood burning devices be limited as much as possible. According to state air quality agencies, prolonged periods of stagnant air can hold pollutants close to the ground where people live and breathe. Check with your local burn agency for any current restrictions in your area. People with respiratory illness should follow their physician's advice for dealing with high levels of air pollution during periods of stagnant air, especially if an Air Quality Alert is in effect for your area. To see if an Air Quality Alert is in effect for your area, go to www.weather.gov/pqr and left-click your location on the homepage map display. Alternatively, you could also type your location into the search bar found on the top-left hand side of the homepage. From there, you will see an Air Quality Alert listed at the top if one is in effect for your location; you can click the alert to read more details if applicable.

Beach Hazards Statement issued January 9 at 1:09PM PST until January 12 at 4:00PM PST by NWS Portland OR

Effective: Fri January 9, 2026, 1:09 PM
Expires: Sat January 10, 2026, 6:00 AM

* WHAT...Sneaker waves possible. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...From 4 AM PST early this morning through Monday afternoon. * IMPACTS...Sneaker waves can run up significantly farther on a beach than normal, including over rocks, logs, 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.

Remain out of the water to avoid hazardous swimming conditions.

Air Stagnation Advisory issued January 9 at 8:19AM PST until January 11 at 10:00AM PST by NWS Medford OR

Effective: Fri January 9, 2026, 8:19 AM
Expires: Fri January 9, 2026, 3:30 PM

* WHAT...For the Freezing Fog Advisory, fog has diminished and visibilities have increased this morning. For the Air Stagnation Advisory, poor air quality will continue. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants Within the valleys in Douglas, Josephine and Jackson Counties. * WHERE...Within the valleys in Douglas, Josephine and Jackson Counties * WHEN...Until 10 AM PST Sunday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.

Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air.

Air Stagnation Advisory issued January 9 at 2:20PM PST until January 11 at 10:00AM PST by NWS Medford OR

Effective: Fri January 9, 2026, 2:20 PM
Expires: Sat January 10, 2026, 3:00 AM

* WHAT...Unhealthy air quality could develop. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants Within the valleys in Douglas County * WHERE...Within the valleys of Douglas County. * WHEN...Until 10 AM PST Sunday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems.

Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air.

Beach Hazards Statement issued January 9 at 11:54AM PST until January 12 at 4:00PM PST by NWS Medford OR

Effective: Fri January 9, 2026, 11:54 AM
Expires: Sat January 10, 2026, 4:00 AM

* WHAT...Moderate risk of sneaker waves expected. * WHERE...Beaches of Douglas, Coos and Curry Counties. * WHEN...From Sunday morning through Monday afternoon. * IMPACTS...Sneaker waves can run up significantly farther on beaches than normal, including over rocks and jetties. These waves can suddenly knock people off of their feet and sweep them into the ocean. The waves can also move logs or other objects which could crush or trap anyone caught underneath. * ADDITIONAL DETAILS...While sneaker waves can occur at any time, the greatest risk is on an incoming tide. Please be aware of the tides if venturing out onto the beaches. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

Avoid climbing on rocks and jetties. Stay away from the ocean and remain out of the water to avoid hazardous conditions.