These messages are issued by Local Meteorological Offices (LMOs) to their respective prefectures.Įmergency Warnings are issued if there is significant likelihood of catastrophes by a natural phenomenon expected to be of a scale that will far exceed the warning criteria. If hazardous weather conditions are expected, the Japan Meteorological Agency (JMA) issues a variety of messages including Emergency Warnings, Warnings, Advisories and Bulletins so that appropriate measures can be taken to mitigate possible disasters. Information for Severe Weather Preparedness Emergency Warning, Warning, Advisory and Bulletin Services for Severe Weather Its objective is to meet the comprehensive need to protect life and property and to enhance national socio-economic activity in various groups including the general public, industry and the transportation sector.

Forecast Services Forecasting encompasses a wide range of meteorological information such as warnings and advisories in addition to forecasts themselves.

Download severe thunderstorm warning