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Emergency Broadcast System, Local Access Alert. The Emergency Alert System (EAS) is a national warning system in the United States designed to allow authorized officials to broadcast emergency alerts and warning messages to the public via cable, satellite and broadcast television and AM, FM and satellite radio.
The first tropical cyclone warning in the country was issued in July 1879. In 1931, the earliest formalized warning system for tropical cyclones was implemented by PAGASA's predecessor, the Philippine Weather Bureau. [5] In the late 20th century, this system gradually became the more familiar four-tiered public storm warning signal system. [6]
Integrated Public Alert & Warning System Open Platform for Emergency Networks (IPAWS-OPEN) is an IP based network that has integrated the different emergency alert systems of the United States. Its purpose is to connect alert originators to a server which then aggregates and disseminates alerts to the proper systems. IPAWS-OPEN uses CAP.
A Tropical Storm Warning is issued when tropical storm conditions (including strong winds of 39 to 73 mph and heavy rain) are expected within a specific coastal area within the next 36 hours.
t. e. Tropical cyclone warnings and watches are alerts issued by national weather forecasting bodies to coastal areas threatened by the imminent approach of a tropical cyclone of tropical storm or hurricane intensity. They are notices to the local population and civil authorities to make appropriate preparation for the cyclone, including ...
t. e. A storm surge, storm flood, tidal surge, or storm tide is a coastal flood or tsunami -like phenomenon of rising water commonly associated with low-pressure weather systems, such as cyclones. It is measured as the rise in water level above the normal tidal level, and does not include waves. [1]
Storm warning. Storm warning flag (US) At sea, a storm warning is a warning issued by the National Weather Service of the United States when winds between 48 knots (89 km/h, 55 mph) and 63 knots (117 km/h, 73 mph) are occurring or predicted to occur soon. The winds must not be associated with a tropical cyclone. [1]
t. e. This article describes severe weather terminology used by the National Weather Service (NWS) in the United States, a government agency operating within the Department of Commerce as an arm of the National Oceanic and Atmospheric Administration (NOAA). The NWS provides weather forecasts, hazardous weather alerts, and other weather-related ...