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

Winter Weather Advisory issued February 17 at 9:59PM PST until February 20 at 4:00AM PST by NWS Portland OR

Effective: Tue February 17, 2026, 9:59 PM
Expires: Wed February 18, 2026, 12:00 PM

...A SERIES OF WEAK SYSTEMS WILL BRING WIDESPREAD SNOW TO THE NORTHERN OREGON AND SOUTHERN WASHINGTON COAST AND CASCADE RANGES THROUGH AT LEAST THURSDAY NIGHT... .A broad area of low pressure will continue to bring widespread snow showers to elevations above 1500 ft through at least Thursday night. Give the showery nature of the precipitation and uncertainty as to the exact track of the Wednesday night system, there is some variability in forecast total snow fall accumulations through Thursday night. While the forecast remains on track for overall snowfall totals, where exactly the highest accumulations remain in flux. * WHAT...Snow. Additional snow accumulations of 4 to 10 inches through Wednesday night and another 2 to 4 inches of snow Thursday morning through Thursday night. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 4 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map

Winter Weather Advisory issued February 17 at 9:59PM PST until February 20 at 4:00AM PST by NWS Portland OR

Effective: Tue February 17, 2026, 9:59 PM
Expires: Wed February 18, 2026, 12:00 PM

...A SERIES OF WEAK SYSTEMS WILL BRING WIDESPREAD SNOW TO THE NORTHERN OREGON AND SOUTHERN WASHINGTON COAST AND CASCADE RANGES THROUGH AT LEAST THURSDAY NIGHT... .A broad area of low pressure will continue to bring widespread snow showers to elevations above 1500 ft through at least Thursday night. Give the showery nature of the precipitation and uncertainty as to the exact track of the Wednesday night system, there is some variability in forecast total snow fall accumulations through Thursday night. While the forecast remains on track for overall snowfall totals, where exactly the highest accumulations remain in flux. * WHAT...Snow. Additional snow accumulations of 2 to 7 inches through Wednesday night and another 1 to 3 inches of snow Thursday morning through Thursday night. * WHERE...Foothills of the Northern and Central Oregon Cascades, North and Central Coast Range Mountains of Oregon, Willapa Hills, and South Washington Cascade Foothills. * WHEN...Until 4 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map

Winter Weather Advisory issued February 18 at 10:00AM PST until February 20 at 4:00AM PST by NWS Portland OR

Effective: Wed February 18, 2026, 10:00 AM
Expires: Thu February 19, 2026, 4:00 AM

...A SERIES OF WEAK SYSTEMS WILL BRING WIDESPREAD SNOW TO THE NORTHERN OREGON AND SOUTHERN WASHINGTON COAST AND CASCADE RANGES THROUGH AT LEAST THURSDAY NIGHT... .A broad area of low pressure will continue to bring widespread snow showers to elevations above 1000 ft through at least Thursday night. Given the showery nature of the precipitation and uncertainty as to the track of tonight's system, there is some variability in forecast total snow fall accumulations through Thursday night. While the forecast remains on track for overall snowfall totals, where exactly the highest snow accumulations occur remain in flux. * WHAT...Snow. Additional snow accumulations of 4 to 10 inches through tonight and another 2 to 4 inches of snow Thursday morning through Thursday night. * WHERE...South Washington Cascades and the Northern and Central Cascades of Oregon. * WHEN...Until 4 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map

Winter Weather Advisory issued February 18 at 10:00AM PST until February 20 at 4:00AM PST by NWS Portland OR

Effective: Wed February 18, 2026, 10:00 AM
Expires: Thu February 19, 2026, 4:00 AM

...A SERIES OF WEAK SYSTEMS WILL BRING WIDESPREAD SNOW TO THE NORTHERN OREGON AND SOUTHERN WASHINGTON COAST AND CASCADE RANGES THROUGH AT LEAST THURSDAY NIGHT... .A broad area of low pressure will continue to bring widespread snow showers to elevations above 1000 ft through at least Thursday night. Given the showery nature of the precipitation and uncertainty as to the track of tonight's system, there is some variability in forecast total snow fall accumulations through Thursday night. While the forecast remains on track for overall snowfall totals, where exactly the highest snow accumulations occur remain in flux. * WHAT...Snow. Additional snow accumulations of 2 to 7 inches through tonight and another 1 to 3 inches of snow Thursday morning through Thursday night. * WHERE...Foothills of the Northern and Central Oregon Cascades, North and Central Coast Range Mountains of Oregon, North Oregon Coast Range Lowlands, Willapa Hills, and South Washington Cascade Foothills. * WHEN...Until 4 AM PST Friday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.

Have a winter emergency driving kit readily available. Common items to include: flashlight, batteries, blankets, a shovel, water, non-perishable food items, tire chains, etc. Be aware that walking surfaces may be slick. Walk with extra care. For the latest road conditions and chain restrictions in Oregon, call 5 1 1, or visit: www.tripcheck.com. For the latest road conditions and chain restrictions in Washington, visit: wsdot.com/travel/real-time/map

Freeze Warning issued February 17 at 8:30AM PST until February 18 at 9:00AM PST by NWS Medford OR

Effective: Tue February 17, 2026, 8:30 AM
Expires: Wed February 18, 2026, 9:00 AM

* WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...The coast of Douglas, Coos, and Curry counties. This includes Reedsport, Lakeside, Charleston, Coquille, Bandon, Port Orford, Gold Beach, and Brookings. * WHEN...From midnight tonight to 9 AM PST Wednesday. * IMPACTS...Freezing conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. * ADDITIONAL DETAILS...While not expected to be as cold as Wednesday morning, or quite reach freezing, lows in the mid 30s are forecast for Thursday and Friday as well.

Take steps now to protect tender plants from the cold.