• Information at a glance
• Volcanic Information for Mountaineers
• Sakurajima Portal
• Kuchinoerabujima Portal
• Ontakesan (Mt. Ontake) Portal
• Emergency Warning System Launched
• 2011 Great East Japan Earthquake

• User's Guide
• Sample data
• HimawariCast service
• HimawariCloud service
• Leaflet

Warnings/Advisories

• Weather Warnings/Advisories
• Real-time Landslide Risk Map
• Marine Warnings Weather/Volcano
• Tropical Cyclone Information

Earthquakes and Volcanoes

• Tsunami Warnings/Advisories, Tsunami Information
• Earthquake Information
• Volcanic Warnings
• Eruption Notice
• Volcanic Ash Fall Forecasts
• Volcanic Ash Advisories

Weather Forecasts and Analysis

• Daily Forecasts
• Distribution/Three-hourly Forecasts
• One-week Forecasts
• Marine Forecasts
• Two-week Temperature Forecast
• Early Warning Information on Extreme Weather
• Seasonal Forecasts
• Weather Maps
• Analysis & Forecasts of Precipitation
• Radar & Nowcasts (Precipitation, Thunder and Tornados)
• High-resolution Precipitation Nowcasts
• Aeolian Dust Observation/Prediction
• UV Index

Latest Weather

• Satellite Imagery
• Satellite Imagery (Rapid Scan)
• Weather Observation Map/Table
• Weather Analysis Map
• Airport Weather

Climate and Ocean

• Climate of Japan
• Oceanographic Observation
• State of the Ocean Climate
• Atmospheric Environment
• Oceanic Carbon Cycle
• Sea Waves
  Around Japan/Western North Pacific

• Observations
  – Meteorological Satellites
  – Meteorological Satellite Center
• Forecasting Services
  – Emergency Warning System
  – High-resolution Precipitation Nowcasts
  – Heat Illness Risk Information
• Numerical Weather Prediction
• Aviation/Marine Weather Services
• Climate & Global Environmental Issues
  – Climate Risk Management
  – JRA-55 – the Japanese 55-year Reanalysis
• Monitoring of Earthquakes, Tsunamis & Volcanic Activity
  – Emergency Warning System
  – Earthquake Early Warning System
  – Tsunami Warning/Advisory
• Telecommunications & Data Processing System
• Public Weather Services & Consultative Services
• International Cooperation

JMA's Major International Roles

• GISC Tokyo
• RSMC Tokyo - Typhoon Center
• Regional Telecommunication Hub (RTH) Tokyo
• Tokyo Climate Center (TCC)
• World Data Centre for Greenhouse Gases (WDCGG)
• Quality Assurance/Science Activity Centre (QA/SAC) for Asia and the South-West Pacific
• GAW World Calibration Centre (WCC) for Methane in Asia and the South-West Pacific / Regional Dobson Calibration Centre (RDCC) for Asia
• Tokyo Volcanic Ash Advisory Center (VAAC)
• Regional Instrument Centre Tsukuba for RA-II (RIC Tsukuba)
• Meteorological Satellites
• Meteorological Satellite Center
• Numerical Weather Prediction System
• Northwest Pacific Tsunami Advisory Center

• Our Missions
  – Meteorological Service Act
• Director-General of JMA
• List of senior officials at the Headquaters
• History
• Organizational Structure
• Access to JMA