Station Name: SOUTH FORK TOLT RIVER NEAR CARNATION, WA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 1,365 feet

Nearest Address:
Tolt Reservoir Rd
Carnation, WA 98014
King County

GPS Coordinates: 47.68926929, -121.7134457

Nearby Water Temperatures

Flood Warning issued March 20 at 4:31PM PDT until March 22 at 5:00PM PDT by NWS Seattle WA

Effective: Fri March 20, 2026, 4:31 PM
Expires: Sat March 21, 2026, 12:45 AM

...The National Weather Service in Seattle WA has issued a Flood Warning for the following rivers in Washington... Cedar River At Renton affecting King County. .The river will rise into Minor Flood Stage and linger there through the weekend before dropping. * WHAT...Minor flooding is forecast. * WHERE...Cedar River at Renton. * WHEN...Until Sunday afternoon. * IMPACTS...At 13.0 feet, the Cedar River will cause minor flooding along the river in Renton. * ADDITIONAL DETAILS... - At 4:15 PM PDT Friday the stage was 13.0 feet. - Flood stage is 13.0 feet. - Forecast...The river will rise above flood stage this evening to 13.6 feet late tonight. It will fall below flood stage again late Sunday morning. - Flood History...This crest compares to a previous crest of 13.4 feet on 01/18/2011. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued by late tonight at 1245 AM PDT.

Special Weather Statement issued March 20 at 12:16PM PDT by NWS Seattle WA

Effective: Fri March 20, 2026, 12:16 PM
Expires: Sat March 21, 2026, 5:00 PM

Rainfall amounts of 2 to 9 inches over the past 3 days has increased soil moisture to high levels across western Washington. This amount of rain that has been observed will continue to put extra pressure on soil instability, leading to an increased threat of landslides and debris flows, especially from recent burned areas. Over the last couple days multiple slides have been reported across locations of western Washington. More landslides are possible. Areas most susceptible to landslides debris flows under these conditions are steep coastal bluffs, other steep hillsides or road cuts, and recent burned areas. A diminishing threat of landslides and debris flows will continue over the weekend after the rain ends. For more information about current conditions, visit www.weather.gov/seattle, select Hydrology, and then scroll down for the links to the landslide information pages. For more information on landslides, visit the website for the Washington State Department of Natural Resources landslide geologic hazards at: http://bit.ly/2mtA3wn

Flood Watch issued March 20 at 6:50PM PDT until March 21 at 5:00PM PDT by NWS Seattle WA

Effective: Fri March 20, 2026, 6:50 PM
Expires: Sat March 21, 2026, 8:00 AM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest and west central Washington, including the following counties, in northwest Washington, Skagit and Whatcom. In west central Washington, King and Snohomish. * WHEN...Through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Area rivers will still be rising into Saturday, with multiple rivers cresting over the weekend. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Warning issued March 20 at 6:09PM PDT until March 21 at 8:11AM PDT by NWS Seattle WA

Effective: Fri March 20, 2026, 6:09 PM
Expires: Sat March 21, 2026, 2:15 AM

...The Flood Warning is extended for the following rivers in Washington... Tolt River Above Carnation affecting King County. Snoqualmie River Near Snoqualmie Falls affecting King County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Tolt River above Carnation. * WHEN...Until tomorrow morning. * IMPACTS...At 5,000.0 cfs, the Tolt River will flood Tolt River Rd NE and many driveways. Some homes in the San Souci area could be inaccessible due to deep and quick flood waters. This river level on the Tolt corresponds to a phase 3 flood in the King County flood system. * ADDITIONAL DETAILS... - At 4:15 PM PDT Friday the flow was 6,290.0 cfs. - Flood flow is 5,000.0 cfs. - Recent Activity...The maximum river flow in the 24 hours ending at 4:15 PM PDT Friday was 6,380.0 cfs. - Forecast...The river is currently in minor flood stage and expected to fall below flood stage tonight. The river will continue to recede over the weekend. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued by late tonight at 215 AM PDT.

Flood Warning issued March 20 at 6:09PM PDT until March 21 at 1:37PM PDT by NWS Seattle WA

Effective: Fri March 20, 2026, 6:09 PM
Expires: Sat March 21, 2026, 2:15 AM

...The Flood Warning is extended for the following rivers in Washington... Tolt River Above Carnation affecting King County. Snoqualmie River Near Snoqualmie Falls affecting King County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Snoqualmie River near Snoqualmie Falls. * WHEN...Until early tomorrow afternoon. * IMPACTS...At 20,000.0 cfs, the Snoqualmie River will cause widespread flooding of pasture lands and roads along the river from the town of Snoqualmie downstream through Fall City. Roads that may become flooded include Fall City-Carnation...Tolt Hill... and Novelty Flats Roads. This river level on the Snoqualmie corresponds roughly to a phase 3 flood in the King County flood system. * ADDITIONAL DETAILS... - At 5:15 PM PDT Friday the flow was 24,800.0 cfs. - Flood flow is 20,000.0 cfs. - Recent Activity...The maximum river flow in the 24 hours ending at 5:15 PM PDT Friday was 24,800.0 cfs. - Forecast...The river is expected to crest in minor flood stage tonight. It will then fall below flood stage early Saturday morning and continue to recede over the weekend. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued by late tonight at 215 AM PDT.