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  2. Severe weather terminology (United States) - Wikipedia

    en.wikipedia.org/wiki/Severe_weather_terminology...

    Severe thunderstorm emergency SVR (SVS) – Sent as a "severe weather statement" or a complete re-issuance of the severe thunderstorm warning, this is an unofficial, high-end severe thunderstorm warning that is occasionally issued when a significant severe thunderstorm is imminent or impacting a highly populated area.

  3. Watch vs. warning or advisory; Here's how they are different ...

    www.aol.com/watch-vs-warning-advisory-heres...

    What's the difference between weather warnings and watches? What is an advisory? Here are weather safety terms you need to know.

  4. Severe thunderstorm watch vs. severe thunderstorm warning. Severe thunderstorms — which are defined by the National Weather Service as storms with “winds of 58 mph or higher and/or hail 1 inch ...

  5. What's the difference between a severe weather watch and a ...

    www.aol.com/news/whats-difference-between-severe...

    Here's what to know about the differences between a severe weather watch or warning from the National Weather Service.

  6. Weather warning - Wikipedia

    en.wikipedia.org/wiki/Weather_warning

    In Canada, governmental weather warnings and watches are issued by the Environment Canada.Environment Canada defines an advisory as "an alert to cover a wide array of deteriorating weather conditions," a watch as "when conditions favour that severe weather forming" and a warning as "severe weather is actually occurring or is imminent."

  7. Particularly dangerous situation - Wikipedia

    en.wikipedia.org/wiki/Particularly_dangerous...

    A watch or warning bearing the phrase is referred to as a PDS watch or PDS warning. First used by the Storm Prediction Center (SPC), a national guidance center of the National Weather Service, for tornado watches, the phrase was later applied to other severe weather watches and warnings by the agency's regional

  8. Watch vs. Warning: how to tell the difference and when to ...

    www.aol.com/news/watch-vs-warning-tell...

    A brief teaching on the difference between a severe weather watch and warning, plus the National Weather Service predictions for storms this afternoon

  9. Severe weather terminology (Canada) - Wikipedia

    en.wikipedia.org/wiki/Severe_weather_terminology...

    Severe weather bulletins are issued as a watch or a warning, depending on the risk or severity of the event. Watches are issued when conditions are favourable for the development of severe weather, but the occurrence, location, and/or timing is still too uncertain to issue a warning. The target lead time for severe thunderstorm watches is ...