Mount Spurr Information

Crater Peak as viewed during an overflight March 21, 2025. Photographer: Hannah Dietterich.

BEFORE and DURING a Mount Spurr eruption, the National Weather Service Anchorage will be in close contact with the Alaska Volcano Observatory and local emergency managers to ensure the most accurate information is disseminated to the public.

The potential for ashfall on local communities depends upon two factors: 1) the size and duration of the eruption and 2) the wind speed and direction. Collaboration between the AVO, us and the VAAC, will help determine what NWS products should be issued.

Recommendations:

NWS encourages the public to adhere to guidance from your local authorities in the event of an eruption, and to sign up for local alerts through your Borough's Emergency Management.
For official forecasts of airborne ash hazards to aircraft refer to the National Weather Service Aviation Weather Unit and Volcanic Ash Advisory Center for aircraft. If you are flying commercially, check with your air carrier to determine the status of your flight. You can also check flight status at Ted Steven International.

Resources:

The Alaska Volcano Observatory produces several graphics and resources on their website pertaining to Mount Spurr. Here is the link to its current activity.
For information from the Division of Homeland Security and Emergency Management on ashfall impacts and mitigation, and answering your frequently asked questions, go to: ready.alaska.gov
In the event of a volcanic eruption, the State of Alaska Department of Environmental Conservation (DEC) Division of Air Quality will issue air quality advisories, alerts, warnings, and emergencies. For current DEC Air Quality statements, visit Air Quality Advisories/Episodes.
For current driving condition travel alerts go to Alaska 511.