Portland, OR – Winds near Mount St. Helens stirred up visible volcanic ash Tuesday, but scientists confirmed the mountain is not erupting.
According to the U.S. Geological Survey’s Cascades Volcano Observatory, strong easterly and southeasterly winds carried loose ash from the 1980 eruption into the air, creating hazy plumes visible on webcams and reported by pilots. The ash resuspension is linked to gusty weather, not new volcanic activity.
The USGS stressed that the Volcano Alert Level remains at Normal and the Aviation Color Code is Green, meaning there is no increased threat from volcanic activity. However, officials cautioned that resuspended ash can still pose hazards. Fine ash particles may irritate lungs, damage engines, and reduce visibility for both residents and air travelers.
The National Weather Service in Portland reiterated that “Mt. St. Helens is NOT currently erupting” in a public advisory Tuesday morning. They urged people with respiratory conditions to stay indoors if ash is noticeable in the air.
USGS monitoring stations continue to track seismic and volcanic conditions at Mount St. Helens and throughout the Cascades. Officials emphasized that today’s event was weather-driven and did not indicate new unrest at the volcano.
Residents in southwest Washington and northwest Oregon may see haze or light ashfall during periods of strong winds. Experts advise keeping windows closed, avoiding outdoor activity if ash is present, and following updates from official sources.
