Washington Volcanic Ash Advisory Center
Active Volcanoes
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| Map Legend: |
 -- Volcano has current VAA and ash KML file -- Volcano has VAA within the past 15 days -- Volcano has Washington VAA since 1999 |
Show Combined Ash Layers |
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ICAO -- Volcanic Ash Advisories
International Civil Aviation Organization (ICAO) Products include Volcanic Ash Advisories (VAA) and associated Volcanic Ash Graphics (VAG) - VAA are issued every 6 hours or sooner for ash active volcanoes with VAG when ash is detected.
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Satellite Imagery
Imagery from the GOES-16/GOES-18/Himawari-9 satellites featuring sectors within the Washington VAAC airspace.
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SO2 Imagery
Latest Ozone Monitoring Instrument (OMI) imagery measuring SO2 - Includes 24-Hour Composite images and volcano specific images.
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OMPS SO2
The Ozone Mapping and Profiler Suite (OMPS) is a hyperspectral instrument which consists of three spectrometers designed to measure the concentration of ozone in the Earth's atmosphere.
Outside OSPO Links
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Volcanic Ash Advisory Centers (VAACs)
In an effort to keep the aviation community informed of volcanic hazards, nine VAACs are tasked with monitoring the movement of volcanic ash within their assigned airspace.
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United States Geological Survey (USGS)
The objectives of the USGS Volcano Hazards Program are to advance the scientific understanding of volcanic processes and to lessen the harmful impacts of volcanic activity.
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The ARL Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model is a complete system for computing simple air parcel trajectories to complex dispersion and deposition simulations.
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NOAA Environmental Visualization Laboratory
High-resolution, detailed imagery of hazardous weather events as detected in remotely sensed data.
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International Civil Aviation Organization (ICAO)
The International Civil Aviation Organization was created in 1944 to promote the safe and orderly development of international civil aviation throughout the world.
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Smithsonian Global Volcanism Program
The Smithsonian's Global Volcanism Program seeks better understanding of all volcanoes through documenting their eruptions - small as well as large - during the past 10,000 years.