Flood Warning issued March 20 at 2:51AM PDT until March 21 at 4:13AM PDT by NWS Seattle WA
发布日期：2026-03-20T09:51+00:00
...The National Weather Service in Seattle WA has issued a Flood Warning for the following rivers in Washington... Tolt River Above Carnation affecting King County. .Additional rain over the Central Cascades will push the Tolt river above flood stage again this morning. * WHAT...Minor flooding is forecast. * WHERE...Tolt River above Carnation. * WHEN...From early this morning to late tonight. * 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 1:15 AM PDT Friday the flow was 4,850 cfs. - Flood flow is 5,000 cfs. - Forecast...The river is expected to rise to a crest near 5700 cfs late this morning. It will then fall below flood stage this evening. - http://www.weather.gov/safety/flood
Flood Watch issued March 19 at 4:32PM PDT until March 20 at 5:00PM PDT by NWS Seattle WA
发布日期：2026-03-19T23:32+00:00
* 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 Friday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - An additional 2 to 4 inches of rain are expected over the North and Central Cascades through Friday. Rainfall rates in the mountains will peak into Friday. This will create a double (or even triple) crest scenario on Friday, pushing some rivers back above flood stage. The Snoqualmie and Snohomish Rivers will likely remain above flood stage. The rivers most likely to go back above flood stage Friday are the Skykomish and Tolt Rivers. New rivers likely to exceed flood stage are the Stillaguamish and Skagit Rivers, with the latest forecast showing the Skagit River to rise into Moderate Flood stage and just below Major Flood stage. - http://www.weather.gov/safety/flood
Special Weather Statement issued March 19 at 12:11PM PDT by NWS Seattle WA
发布日期：2026-03-19T19:11+00:00
Rainfall of 2 to 7 inches over the past 3 days has increased soil moisture to high levels across western Washington. Heavy rainfall of 0.75 up to 4 inches is expected over the next 30 hours. This amount of rain will 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 at least one landslide has been reported in King County. 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 for several days 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
