Weather Alerts- Seattle, Washington

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Seattle/Tacoma - WA, US, National Weather Service

City of Seattle

...HEAVY RAINFALL THIS WEEK HAS LED TO AN INCREASED THREAT OF LANDSLIDES IN WESTERN WASHINGTON... Significant rainfall over the past week has increased soil moisture to high levels across western Washington. This significant rain will continue to put extra pressure on soil instability, leading to an increased threat of landslides and debris flows, especially from recent burned areas, with additional rainfall acting as a trigger. Numerous landslides have already occurred in Whatcom, Skagit, King Counties and others. More landslides continue to be 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

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Seattle/Tacoma - WA, US, National Weather Service

Portions of northwest and west central Washington, including the following counties, in northwest Washington, Grays Harbor. In west central Washington, King, Pierce and Thurston

...FLOOD WATCH NOW IN EFFECT THROUGH SATURDAY MORNING... 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, Grays Harbor. In west central Washington, King, Pierce and Thurston. WHEN...Through Saturday morning. IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Area creeks and streams are running high and could flood with more heavy rain. ADDITIONAL DETAILS... - Dam operations to maintain a safe flood pool for area dams could maintain elevated flow levels or they could raise or lower levels downstream of the dams. Dam regulation can change rapidly. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... 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.

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Seattle/Tacoma - WA, US, National Weather Service

Puget Sound and Hood Canal

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 AM PST SATURDAY... WHAT...South winds 10 to 20 kt with frequent gusts to 25 kt. WHERE...Puget Sound and Hood Canal. WHEN...Until 4 AM PST Saturday. IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots and/or seas 10 feet or higher are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions.