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This document provide guidelines for color codes to indicate severity of hazards in public warnings. There are many different systems are already in use, such as colour state of meteorological condition or former Homeland Security Advisory System, and the standard is intended to be an approach to eliminate confusion due to such differences. [1]
As strong winds in Southern California pick up further early on Tuesday, a "particularly dangerous situation" with a red flag warning will go into effect in western Los Angeles County and most of ...
Local Weather Forecast Offices (WFO) of the National Weather Service may issue a Special Weather Statement to alert of a specified hazard that is approaching or below warning or advisory criteria, that does not have a specific alert product code of their own (such as for widespread funnel clouds with limited to no threat of complete tornadogenesis, the likelihood of landspouts, or strong ...
References to the "significant weather advisory" and "significant weather alert" terms in First Warning—a broadcast weather alert system derived for use by local television stations—and its derivatives vary by station and market; in most cases, the system's various iterations classify the product by generic thunderstorm-specific terms that ...
A new color-coded heat warning system relies on magenta to alert Americans to the most dangerous conditions they may see this summer. The National Weather Service and the Centers for Disease ...
More than half a million people in California got early warnings through MyShake on Dec. 5 for a magnitude 7 earthquake that struck in the Pacific Ocean 30 miles off the Humboldt County coast and ...
See Severe weather terminology (United States) and/or Severe weather terminology (Canada) for comprehensive articles concerning specific nations' warnings, watches, advisories and related terms. Pages in category "Weather warnings and advisories"
Here’s who sends out the alert to your phone and why you were buzzed even if you didn’t feel the earth shake.