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  2. Hong Kong rainstorm warning signals - Wikipedia

    en.wikipedia.org/wiki/Hong_Kong_rainstorm...

    Heavy rain has fallen or is expected to fall generally over Hong Kong, exceeding 30 millimetres in an hour, and is likely to continue. [1] The AMBER signal (Chinese: 黃色暴雨警告) gives alert about potential heavy rain that may develop into RED or BLACK signal situations. There will be flooding in some low-lying areas and poorly drained ...

  3. Weather warning - Wikipedia

    en.wikipedia.org/wiki/Weather_warning

    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.

  4. National Severe Weather Warning Service - Wikipedia

    en.wikipedia.org/wiki/National_severe_weather...

    The Met Office is monitoring the developing weather situation and Yellow means to keep an eye on the latest forecast and be aware that the weather may change or worsen, leading to disruption of plans within the next few days. Amber: Be Prepared. There is an increased likelihood of severely or extremely bad weather affecting people in the area ...

  5. Particularly dangerous situation - Wikipedia

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

    repeated rounds of thunderstorms will track along the front bringing heavy rainfall. then a low pressure system will track along it into missouri and push the front further south to along the i-40 corridor monday night through tuesday night. this will shift the heavy rain axis further south to along and just north of the i-40 corridor.

  6. Severe thunderstorm warning - Wikipedia

    en.wikipedia.org/wiki/Severe_thunderstorm_warning

    In Canada, a severe thunderstorm is defined as having wind gusts of greater than 90 km/h (56 mph), hail with a diameter of greater than two centimetres (0.79 in), rainfall rates of greater than 50 millimetres (2.0 in) in one hour or greater than 75 millimetres (3.0 in) in three hours, or tornadoes. [14]

  7. What 'secret' loudspeaker codes mean at department stores - AOL

    www.aol.com/news/2010-10-13-what-secret...

    If you've been shopping in a big box retail store you've probably heard an announcement on the loudspeaker such as, "code yellow toys, code yellow toys." This "code" is one of many innocuous ...

  8. Severe weather terminology (United States) - Wikipedia

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

    The outlook will include information about any potential hazards to life, property or travel (severe or strong thunderstorms, heavy rain or flooding, winter weather, tropical cyclones, extremes of heat or cold, and/or fire weather conditions) that may take place over the next seven days with an emphasis on the first 24 hours of the forecast.

  9. Civil defense siren - Wikipedia

    en.wikipedia.org/wiki/Civil_defense_siren

    The alert sound is a steady, continuous note. In seaside towns, alert may also be used to warn of a tsunami. Sirens that rotate will have a rising-and-falling tone as the direction of the horn changes. The attack tone is the rising and falling sound of an air raid or nuclear attack, frequently heard in war movies. It was once reserved for ...