Ontakesan (Mt. Ontake) – Portal –

This Portal webpage shows relevant information on Ontakesan (Mt. Ontake) that erupted at 11:52 JST on 27 September 2014 and its afterward situation.

Volcanic Information

• Volcanic Warnings (Japan)
• Volcanic Warnings (Kanto/Chubu)
• Eruption Notice
• Volcanic Ash Fall Forecasts
• Volcanic Ash Advisories (informaton for aircraft operations)
• Overview

Weather Information

• Weather Warnings/Advisories Nagano Pref. / Gifu Pref.
• Risk of Sediment Disaster Nagano Pref. / Gifu Pref.
• Daily Forecasts Nagano Pref. / Gifu Pref.
• One-week Forecasts Nagano Pref. / Gifu Pref.
• Analysis and Forecast of Precipitation
• High-resolution Precipitation Nowcasts
• Latest Weather Observation (Tokai) Precipitation / Wind