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Forecast Trajectory Maps for Alaskan Volcanoes

NOTE: this web server is not maintained in an "operational" environment and should not be relied upon for 24/7 access.

NOTE: these trajectories are run on a regular schedule whether or not there is an eruption

Time help (UTC=GMT; local)
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Updated on Tue Sep 19 23:52:26 UTC 2017

HYSPLIT Forecast Trajectories
Volcano Trajectory start time after model initialization (hrs)
+6 +12 +18 +24
GFS GFS GFS GFS
Akutan GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Akutan Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Akutan Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Akutan Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Akutan Volcano
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Aniakchak GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Aniakchak Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Aniakchak Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Aniakchak Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Aniakchak Volcano
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Atka GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Atka Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Atka Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Atka Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Atka Volcano
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Augustine GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Augustine Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Augustine Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Augustine Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Augustine Volcano
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Bogoslof GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Churchill Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Churchill Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Churchill Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Churchill Volcano
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Churchill GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Churchill Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Churchill Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Churchill Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Churchill Volcano
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Cleveland GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Cleveland Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Cleveland Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Cleveland Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Cleveland Volcano
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Dutton GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Dutton Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Dutton Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Dutton Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Dutton Volcano
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Gareloi GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Gareloi Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Gareloi Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Gareloi Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Gareloi Volcano
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Great_Sitkin GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Great_Sitkin Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Great_Sitkin Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Great_Sitkin Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Great_Sitkin Volcano
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Griggs GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Griggs Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Griggs Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Griggs Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Griggs Volcano
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Hayes GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Hayes Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Hayes Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Hayes Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Hayes Volcano
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Iliamna GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Iliamna Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Iliamna Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Iliamna Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Iliamna Volcano
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Kaguyak GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Kaguyak Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Kaguyak Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Kaguyak Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Kaguyak Volcano
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Kanaga GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Kanaga Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Kanaga Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Kanaga Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Kanaga Volcano
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Kasatochi GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Kasatochi Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Kasatochi Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Kasatochi Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Kasatochi Volcano
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Katmai GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Katmai Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Katmai Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Katmai Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Katmai Volcano
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Mageik GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Mageik Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Mageik Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Mageik Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Mageik Volcano
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Makushin GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Makushin Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Makushin Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Makushin Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Makushin Volcano
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Martin GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Martin Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Martin Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Martin Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Martin Volcano
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Novarupta GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Novarupta Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Novarupta Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Novarupta Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Novarupta Volcano
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Okmok GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Okmok Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Okmok Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Okmok Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Okmok Volcano
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Pavlof GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Pavlof Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Pavlof Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Pavlof Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Pavlof Volcano
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Pavlof_Sister GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Pavlof_Sister Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Pavlof_Sister Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Pavlof_Sister Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Pavlof_Sister Volcano
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Redoubt GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Redoubt Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Redoubt Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Redoubt Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Redoubt Volcano
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Seguam GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Seguam Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Seguam Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Seguam Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Seguam Volcano
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Semisopochnoi GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Semisopochnoi Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Semisopochnoi Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Semisopochnoi Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Semisopochnoi Volcano
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Shishaldin GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Shishaldin Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Shishaldin Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Shishaldin Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Shishaldin Volcano
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Spurr GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Spurr Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Spurr Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Spurr Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Spurr Volcano
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Trident GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Trident Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Trident Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Trident Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Trident Volcano
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Ugashik-Peulik GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Ugashik-Peulik Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Ugashik-Peulik Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Ugashik-Peulik Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Ugashik-Peulik Volcano
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Veniaminof GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Veniaminof Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Veniaminof Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Veniaminof Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Veniaminof Volcano
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Westdahl GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Westdahl Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Westdahl Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Westdahl Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Westdahl Volcano
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Wrangell GFS HYSPLIT Trajectories beginning 6 hours after model initial time from the Wrangell Volcano GFS HYSPLIT Trajectories beginning 12 hours after model initial time from the Wrangell Volcano GFS HYSPLIT Trajectories beginning 18 hours after model initial time from the Wrangell Volcano GFS HYSPLIT Trajectories beginning 24 hours after model initial time from the Wrangell Volcano
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txt - Trajectory endpoints format help

Forecast Details

Forecast trajectories for Alaska are summarized above. The 6-h duration forward trajectories begin at the specified number of hours after the start of the meteorological model initialization. The trajectories are computed using meteorological fields output from the NOAA National Centers for Environmental Prediction (NCEP) Global Forecast System (GFS) forecast models. Details on the GFS gridded data used in these calculations are available on the meteorological forecast data web page. Trajectories starting at different heights are shown in different colors. The trajectory endpoints are plotted on maps (gif) and displayed in text files (txt).




Related Links

Anchorage Volcanic Ash Advisory Center (VAAC)
Alaska Volcano Observatory (AVO)
HYSPLIT for current eruptions
HYSPLIT for hypothetical eruptions
Run HYSPLIT for any volcano

Inquiries should be addressed to:
Barbara Stunder
Email: barbara.stunder@noaa.gov



Modified: December 23, 2016
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