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

High Surf Advisory issued January 8 at 12:51AM PST until January 8 at 4:00PM PST by NWS Portland OR

Effective: Thu January 8, 2026, 12:51 AM
Expires: Thu January 8, 2026, 4:00 PM

* WHAT...Large waves and hazardous surf conditions. Breakers up to 25 feet. * WHERE...North and Central Coast of Oregon, and South Washington Coast. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Destructive waves may wash over beaches, jetties, and other structures unexpectedly. People can be swept off rocks and jetties and drown while observing high surf. Minor beach erosion may damage coastal properties and buildings. Higher than normal water run-up is expected on beaches and low-lying shoreline. * ADDITIONAL DETAILS...The largest waves are expected to occur through 10 AM Thursday.

A High Surf Advisory means that high surf will affect beaches, producing rip currents, sneaker waves and beach erosion. Stay well back from the water's edge and be alert for exceptionally high waves. Keep away from large logs on the beach. Water running up on the beach can easily lift or roll logs which can injure or kill someone caught in their path.

Winter Storm Warning issued January 8 at 12:41AM PST until January 8 at 4:00PM PST by NWS Portland OR

Effective: Thu January 8, 2026, 12:41 AM
Expires: Thu January 8, 2026, 4:00 PM

* WHAT...Heavy snow. Additional snow accumulations between 4 and 9 inches. Winds gusting as high as 35 mph. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 4 PM PST this afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Consider postponing travel until weather conditions improve. If you must travel, be sure to slow down and allow extra time. If your car becomes trapped in deep snow, be sure to keep your car off to stay safe from potential carbon monoxide poisoning. If you are using a generator, be sure to keep it outdoors and away from windows and vents. Be aware that walking surfaces may be slick. Walk with extra care. Backcountry recreation is not advised.

Air Stagnation Advisory issued January 8 at 3:37PM PST until January 11 at 10:00AM PST by NWS Portland OR

Effective: Thu January 8, 2026, 3:37 PM
Expires: Fri January 9, 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 Friday 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.

High Surf Advisory issued January 8 at 3:50AM PST until January 8 at 4:00PM PST by NWS Medford OR

Effective: Thu January 8, 2026, 3:50 AM
Expires: Thu January 8, 2026, 4:00 PM

* WHAT...Large breaking waves of 22 to 26 feet. * WHERE...The beaches and shorelines of Curry, Coos, and Douglas counties in southern Oregon. * WHEN...Until 4 PM PST Thursday. * IMPACTS...Large breaking waves will create hazardous conditions along and within the surf zone, and could inundate beaches and low lying shorelines. Beach erosion is possible, and exposed infrastructure may be damaged. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

Stay away from the surf zone and off of jetties. Area beaches may become hazardous due to dangerous surf conditions.

Air Stagnation Advisory issued January 8 at 2:39PM PST until January 11 at 10:00AM PST by NWS Medford OR

Effective: Thu January 8, 2026, 2:39 PM
Expires: Thu January 8, 2026, 10:45 PM

* WHAT...Decreased air quality will probably develop. This is due to an inversion and stagnant air conditions near the surface that will continue to trap pollutants within the valleys of Douglas, Josephine and Jackson Counties. * WHERE...Within the valleys in Douglas, Josephine and Jackson Counties * WHEN...From 10 AM Friday to 10 AM PST Sunday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Most outdoor burning will likely be prohibited as poor ventilation develops. * ADDITIONAL DETAILS...A strong area of high pressure will build in briefing Friday and Saturday before weakening slightly on Sunday. This will lead to poor mixing of the atmosphere and the trapping of pollutants.

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

High Surf Advisory issued January 8 at 11:43AM PST until January 8 at 10:00PM PST by NWS Medford OR

Effective: Thu January 8, 2026, 11:43 AM
Expires: Thu January 8, 2026, 10:00 PM

* WHAT...Large breaking waves of 20 to 25 feet. * WHERE...The beaches and shorelines of Curry, Coos, and Douglas counties in southern Oregon. * WHEN...Until 10 PM PST this evening. * IMPACTS...Large breaking waves will create hazardous conditions along and within the surf zone, and could inundate beaches and low lying shorelines. Beach erosion is possible, and exposed infrastructure may be damaged. * View the hazard area in detail at https://www.wrh.noaa.gov/map/?wfo=mfr

Stay away from the surf zone and off of jetties. Area beaches may become hazardous due to dangerous surf conditions.

Air Stagnation Advisory issued January 8 at 10:01PM PST until January 11 at 10:00AM PST by NWS Medford OR

Effective: Thu January 8, 2026, 10:01 PM
Expires: Fri January 9, 2026, 4:15 PM

* WHAT...Decreased air quality is likely to develop Friday morning. This is due to an inversion and stagnant air conditions near the surface that will trap pollutants within the valleys in Douglas, Josephine and Jackson Counties. * WHERE...Valleys in Douglas, Josephine, and Jackson counties. * WHEN...From 10 AM Friday to 10 AM PST Sunday. * IMPACTS...Poor air quality may cause issues for people with respiratory problems. Most outdoor burning will likely be prohibited as poor ventilation develops. * ADDITIONAL DETAILS...A strong area of high pressure will build in through Saturday, then weaken slightly on Sunday. This will lead to poor mixing of the atmosphere and the trapping of pollutants. The high is likely to strengthen again early next week.

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