This article describes the Japan Meteorological Agency (JMA) severe weather terminology. The JMA defines precise meanings for nearly all its weather terms as the . This article describes JMA terminology and related JMA weather scales. Some terms may be specific to certain regions.
Warning Categories
Severe weather bulletins are issued as an advisory or a warning, depending on the risk or severity of the event. Less severe events that could be a cause for concern will be issued as a bulletin or an advisory.
: provide information to supplement warnings and advisories.
Meteorological Warnings
Weather advisories and warnings are issued when potentially hazardous weather is occurring or is forecast for the short-term period.
General Warnings
Due to its local-scale nature, an advisory is typically issued in advance for public forecast areas where conditions may be favorable for the development of severe weather. A warning is issued for areas where severe weather is imminent or occurring.
Advisories
Warnings
Marine Warnings
Typhoons or Tropical Depressions
Flood Forecasting
Seismological Warnings
Earthquake Information
Earthquake Early Warning
Tsunami Warnings
Volcano Information
See also
List of severe weather phenomena
Japan Meteorological Agency
Severe weather terminology (United States) Severe weather terminology (Canada)