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What's the difference between weather warnings and watches? What is an advisory? Here are weather safety terms you need to know.
(The watch/warning/advisory display map on the NWS's national and local Forecast Office websites does not display the advisory as an area-specific polygon, instead indicating the affected counties and/or county-equivalent subdivisions.) [28]
A weather warning generally refers to an alert issued by a meteorological agency to warn citizens of approaching dangerous weather.A weather watch, on the other hand, typically refers to an alert issued to indicate that conditions are favorable for the development of dangerous weather patterns, although the dangerous weather conditions themselves are not currently present.
Here's what to know about the differences between a severe weather watch or warning from the National Weather Service.
Such events could lead to the weather service issuing tropical storm watches or warnings — which means “tropical storm conditions (sustained winds of 39 to 73 mph) are possible within the ...
If severe weather is detected, the National Weather Service would replace the significant weather advisory with a severe thunderstorm or tornado warning, which may warrant local communities in the path of the associated severe weather, at their discretion, to activate sirens to warn citizens not watching or listening to media to seek shelter ...
A severe thunderstorm watch, like a tornado watch, is not to be confused with a warning. A watch encourages the public to remain vigilant—to be on the watch, so to speak—for the later onset of severe weather. An area under a watch may even experience deceptively fair weather with few clouds before thunderstorms develop.
To the public, the warning means high fire danger with increased probability of a quickly spreading vegetation fire in the area within 24 hours. The weather criteria for fire weather watches and red flag warnings vary with each Weather Service office’s warning area based on the local vegetation type, topography, and distance from major water ...