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Volcanic Ash HYSPLIT trajectory and dispersion runs are generated in response to alerts produced by the volcanic cloud monitoring system (VOLCAT)

Choose a volcano:


VOLCAT Alerts and corresponding HYSPLIT trajectory and dispersion runs for the last 48 hours

Trajectory and dispersion runs are generated when an alert is received

Date and Time (UTC): Alert Type Location
(lat, lon)
Nearby Volcanoes VAAC Region HYSPLIT Trajectories HYSPLIT Dispersion
Alert 0 03/05/2021 at 19:53 UTC ash 19.02, -98.62 Popocatepetl | Iztaccihuatl | Papayo | Chichinautzin | Malinche, La Washington
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  • 3hrs

  • 6hrs

  • Alert 1 03/05/2021 at 19:33 UTC hot 14.95, -24.38 Fogo | Brava Toulouse
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  • Alert 2 03/05/2021 at 19:30 UTC ice 54.18, -165.96 Akutan Anchorage
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  • Alert 3 03/05/2021 at 19:23 UTC ash 14.38, -90.6 Pacaya | Agua | Cuilapa-Barbarena | Fuego | Acatenango Washington
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  • 3hrs

  • 6hrs

  • Alert 4 03/05/2021 at 19:06 UTC ash -16.35, -70.9 Ubinas | Huaynaputina | Misti, El | Ticsani | Chachani, Nevado Buenos Aires
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  • 3hrs

  • 6hrs

  • Alert 5 03/05/2021 at 19:03 UTC ash 19.02, -98.62 Popocatepetl | Iztaccihuatl | Papayo | Chichinautzin | Malinche, La Washington
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  • 3hrs

  • 6hrs

  • Alert 6 03/05/2021 at 19:00 UTC hot -1.53, 29.26 Nyiragongo | Nyamuragira | Karisimbi | Visoke | Muhavura Toulouse
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  • Alert 7 03/05/2021 at 18:55 UTC ash -2.01, -78.34 Sangay | Licto | Tungurahua | Chimborazo | Quilotoa Washington
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  • 3hrs

  • 6hrs

  • Alert 8 03/05/2021 at 18:36 UTC ash -16.35, -70.9 Ubinas | Huaynaputina | Misti, El | Ticsani | Chachani, Nevado Buenos Aires
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  • 3hrs

  • 6hrs

  • Alert 9 03/05/2021 at 18:33 UTC hot 19.33, -97.25 Gloria, La | Cumbres, Las | Cofre de Perote | Serdan-Oriental | Orizaba, Pico de Washington
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  • Alert 10 03/05/2021 at 18:23 UTC ash 19.02, -98.62 Popocatepetl | Iztaccihuatl | Papayo | Chichinautzin | Malinche, La Washington
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  • 3hrs

  • 6hrs

  • Alert 11 03/05/2021 at 18:15 UTC hot 8.89, 40.0 Fentale | Beru | Kone | Unnamed Toulouse
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  • Alert 12 03/05/2021 at 18:13 UTC hot 19.41, -155.28 Kilauea | Mauna Loa Washington
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  • Alert 13 03/05/2021 at 18:08 UTC hot 19.41, -155.28 Kilauea | Mauna Loa Washington
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  • Alert 14 03/05/2021 at 18:05 UTC ash -10.38, 165.8 Tinakula | Motlav | Suretamatai | Gaua | Mere Lava Wellington
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  • 3hrs

  • 6hrs

  • Alert 15 03/05/2021 at 18:03 UTC hot 19.41, -155.28 Kilauea | Mauna Loa Washington
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  • Alert 16 03/05/2021 at 18:03 UTC hot 13.32, -87.84 Conchagua | Conchaguita | Tigre, Isla el | Zacate Grande, Isla | Aramuaca, Laguna Washington
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  • Alert 17 03/05/2021 at 18:03 UTC hot 19.32, -97.22 Gloria, La Washington
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  • Alert 18 03/05/2021 at 17:58 UTC hot 19.41, -155.28 Kilauea | Mauna Loa Washington
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  • Alert 19 03/05/2021 at 17:58 UTC hot 19.33, -97.25 Gloria, La | Cumbres, Las | Cofre de Perote | Serdan-Oriental | Orizaba, Pico de Washington
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