Flood Warning Issued for Wahkiakum County as Grays River Exceeds Flood Stage

Alert Details

The National Weather Service in Portland, OR, has issued a Flood Warning for the Grays River at Covered Bridge near Rosburg. The warning is effective from March 11, 2026, at 10:28 PM PDT and is scheduled to remain in effect until March 14, 2026, at 12:35 AM PDT.

Affected Areas

The primary area affected is Wahkiakum County in Washington. Specifically, the warning focuses on the Grays River at Covered Bridge near Rosburg.

What You Should Do

Residents and motorists are advised to “Turn around, don’t drown” when encountering flooded roads, as most flood-related deaths occur in vehicles. Do not attempt to drive around barricades or through flooded areas. Use extreme caution at night when the dangers of flooding are more difficult to recognize.

Expected Conditions

Minor flooding is currently occurring and is forecast to continue. As of 10:15 PM PDT on Wednesday, the river stage was recorded at 29.4 feet, which is above the flood stage of 28.5 feet and the bankfull stage of 27.5 feet.

If the river reaches 30.5 feet, widespread lowland flooding is expected, along with numerous flooded roads near Rosburg and Highway 4. Impacted areas include Covered Bridge Road near the gage and the roadway approaches to the Altoona Bridge downstream.

Timeline

The Flood Warning is in effect until early Saturday morning. The river is forecast to fall to flood stage early Friday morning before rising again to 28.8 feet late Friday morning. It is expected to fall below flood stage on Friday evening, reaching 26.4 feet by late Sunday evening.