What if Mount St. Helens Erupts?

After the Eruption

In the event of a significant Mount St. Helens eruption:

• Evacuate, if advised to do so.
• Be prepared to stay indoors and avoid downwind areas if ashfall is predicted.
• Do not approach the eruption area.
• Be aware of stream and river channels when evacuating.
• Move toward higher ground if mudflows are approaching.

More information to help you if Mount St. Helens erupts:

• How to prepare
• What to do about the ash
• Potential health affects

For current information:

• United States Geological Survey Cascades Volcano Observatory
• American Lung Association

Source: Washington State Department of Health

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