Alaska's volcanoes are a big threat to the local people and to all types of aircraft.
These volcanoes are very active and can send ash high into the sky. This ash can damage plane engines and can even stop all the engines while a plane is still flying. The ability to know where this ash is and predict its movement is very important. We can help prevent planes flying through ash and provide safe plane journeys in and around Alaska with our PUFF models. 
Choose a volcano!
Puff is a volcanic ash tracking model developed by scientists at the University of Alaska Fairbanks. Puff is used to predict where volcanic ash would travel if a volcano erupted.
You can watch puff animations of ash plumes by selecting a volcano.
Spurr
Click on the triangle to view ash plumes from eruptions of Mt. Spurr in 1992.
Augustine
Click on the triangle to view ash plumes from eruptions of Mt. Augustine in 2006.
Veniaminof
Click on the triangle to view an ash plume from a 1983 eruption of Mt. Veniaminof
Okmok
Click on the triangle to view an ash plume from the 1997 eruption of Okmok.
Cleveland
Click on the triangle to view ash plumes from eruptions of Mt. Cleveland in 2001.
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