This article describes the
Japan Meteorological Agency
The , abbreviated JMA, is an agency of the Ministry of Land, Infrastructure, Transport and Tourism. It is charged with gathering and providing results for the public in Japan that are obtained from data based on daily scientific observation an ...
(JMA)
severe weather
Severe weather is any dangerous meteorological phenomenon with the potential to cause damage, serious social disruption, or loss of human life. Types of severe weather phenomena vary, depending on the latitude, altitude, topography, and atm ...
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.
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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
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Warnings
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Marine Warnings　
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Typhoons or Tropical Depressions　
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Flood Forecasting
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Seismological Warnings
Earthquake Information
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Earthquake Early Warning
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Tsunami Warnings
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Volcano Information
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See also
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List of severe weather phenomena
Severe weather phenomena are weather conditions that are hazardous to human life and property.
Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, a ...
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Japan Meteorological Agency
The , abbreviated JMA, is an agency of the Ministry of Land, Infrastructure, Transport and Tourism. It is charged with gathering and providing results for the public in Japan that are obtained from data based on daily scientific observation an ...
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Severe weather terminology (United States)
This article describes severe weather terminology used by the National Weather Service (NWS) in the United States. The NWS, a government agency operating as an arm of the National Oceanic and Atmospheric Administration (NOAA) branch of the United ...
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Severe weather terminology (Canada)
This article describes severe weather terminology used by the Meteorological Service of Canada, a branch within Environment and Climate Change Canada. The article primarily describes various weather warnings, and their criteria. Related weather s ...
External links
Forecast Services by Japan Meteorological Agency
Notes and references
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Japan Meteorological Agency
Severe weather and convection
Weather warnings and advisories