Volcanic Ash in Alaska

4 volcanic ash events since 1999

Every volcanic ash event the National Weather Service has filed in Alaska, year by year, with the most significant episodes. Ash from an eruption that fell on land or reduced visibility.

The most significant on the map

The most significant volcanic ash episodes in Alaska.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

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The record

Events: 4
Deaths: 0
Injuries: 0
Damage: None recorded

Every year

The most significant

Ranked by deaths, injuries, damage and size together.

Volcanic Ash in Alaska, February 19, 20012 eventsAVO detected a volcanic ash cloud emanating from Cleveland Volcano in satellite imagery that began 1500 Z (0600 AST) in the Islands of the Four Mountains.
Volcanic Ash in Alaska, April 19 to 20, 19991 eventThe Shishaldin volcano erupted just after 11am Monday. The eruption lasted for close to 6 hours. Fortunately, prevailing winds were north to northwest at lower levels, carrying the ash across uninhabited areas of Unimak Island out into the Pacific.
Volcanic Ash in Alaska, April 22, 19991 eventAnother explosive eruption was reported from the Shishaldin Volcano on Unimak Island late Thursday at 9:50 pm ADT. The plume initially moved south not impacting any communities.

Volcanic Ash everywhere Every kind of event in Alaska

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.