Flood Warning Issued for Chehalis River in Grays Harbor County Through Monday Evening

Alert Details

The National Weather Service in Seattle WA has issued a Flood Warning for the Chehalis River at Porter. This alert is in effect from Saturday afternoon, March 14, through late Monday evening, March 16.

Affected Areas

The warning specifically affects Grays Harbor County in Washington, focusing on the Chehalis River at Porter. High tidal levels at Aberdeen are expected to worsen flooding along the lower reaches of the river.

What You Should Do

Residents and motorists are advised to follow the “Turn around, don’t drown” rule when encountering flooded roads, as most flood-related deaths occur in vehicles. Do not attempt to drive around barricades or navigate cars through flooded areas. Monitor local updates for further information.

Expected Conditions

Minor flooding is forecast for the region. As of 8:45 PM PDT Friday, the river stage was recorded at 46.8 feet. The river is expected to rise above the flood stage of 48.0 feet, reaching a predicted crest of 48.6 feet by late Sunday morning. At these levels, the Chehalis River will flood low-lying pasture lands and some local roads.

Timeline

• Onset: Saturday, March 14, at approximately 12:50 PM PDT.
• Peak: Crest of 48.6 feet expected late Sunday morning, March 15.
• Recession: The river is forecast to fall below flood stage early Monday afternoon.
• Expiration: The warning is currently set to expire at 9:34 PM PDT on Monday, March 16.