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Washington Volcanic Ash Advisory Center

Active Volcanoes

Volcano Name Lat/Lon(DMS) Summit(ft) Eruption
Height(ft*100) 		Next Advisory
SANTA MARIA 14.75/-91.55 12287 150 18/2215Z
POAS 10.18/-84.22 8848 100 18/2330Z
SANGAY -2.00/-78.33 17342 230 19/0130Z
REVENTADOR -0.07/-77.65 11686 145 19/0300Z
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Volcano Icon Legend: -- Volcano has current VAA and ash KML file
-- Volcano has VAA within the past 15 days
-- Volcano has Washington VAA since 1999
 Show Volcano Ash Layers
Show NOAA Infrared (IR) Band Layer

VA Color Legend
OBS (Observed Time)
OBS + 6 Hours
OBS + 12 Hours
OBS + 18 Hours
Polygon Color *
Red
Yellow
Blue
Green

* Where polygon colors overlap, the resulting color will not precisely match what is presented in the legend. It will generally be a combination of the colors (eg. Red + Yellow = Orange, which would mean OBS and OBS + 6 Hours overlap).

  • ICAO Volcanic Ash Advisories
    Volcanic Ash Advisories

    International Civil Aviation Organization (ICAO) Products include Volcanic Ash Advisories (VAA) and associated Volcanic Ash Graphic (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
    Volcanic Ash Satellite Imagery

    Imagery from the GOES-16/GOES-19/Himiwari satellites featuring sectors within the Washington VAAC airspace.

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  • SO2 Imagery
    Ozone Monitoring

    Latest Ozone Monitoring Instrument (OMI) imagery measuring SO2 - Includes 24-Hour Composite images and volcano specific images.

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  • OMPS SO2
    Ozone Mapping Suite

    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.

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Outside OSPO Links

  • Volcanic Ash Advisory Centers (VAAC)
    Map of VAAC worldwide

    In an effort to keep the aviation community informed of volcanic hazards, nine VAAC are tasked with monitoring the movement of volcanic ash within their assigned airspace.

    Anchorage   Buenos Aires   Darwin   London   Montreal   Tokyo   Toulouse   Washington   Wellington
  • United States Geological Survey (USGS)
    USGS Volcano Hazards

    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.

    Yellowstone Observatory   California Observatory   Cascades Observatory
  • Air Resources Laboratory (ARL) HYSPLIT Model
    ARL Hybrid Single Particle Lagrangian Integrated Trajectory

    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
    NESDIS Ash Producs

    High-resolution, detailed imagery of hazardous weather events as detected in remotely sensed data.

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  • International Civil Aviation Organization (ICAO)
    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
    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.

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