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  2. List of severe weather phenomena - Wikipedia

    en.wikipedia.org/wiki/List_of_severe_weather...

    Cyclones. Extratropical cyclone. European windstorms; Australian East Coast Low "Medicane", Mediterranean tropical-like cyclones Polar cyclone; Tropical cyclone, also called a hurricane, typhoon, or just "cyclone"

  3. Hazard - Wikipedia

    en.wikipedia.org/wiki/Hazard

    A hazard pictogram to indicate a hazard from a flammable substance.. A hazard is a potential source of harm.Substances, events, or circumstances can constitute hazards when their nature would potentially allow them to cause damage to health, life, property, or any other interest of value.

  4. Information hazard - Wikipedia

    en.wikipedia.org/wiki/Information_hazard

    An information hazard, or infohazard, [1] is "a risk that arises from the dissemination of (true) information that may cause harm or enable some agent to cause harm". It was formalized by philosopher Nick Bostrom in 2011.

  5. Severe weather terminology (United States) - Wikipedia

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

    Particularly dangerous situation wind chill warning NPW – Extremely low wind chills of −30 °F (−34 °C) or lower creating an enhanced risk of frostbite, hypothermia and death are imminent or occurring. This definitional criteria was consolidated along with the parent Wind Chill Warning product into the Extreme Cold Warning product in ...

  6. Severe weather - Wikipedia

    en.wikipedia.org/wiki/Severe_weather

    A dangerous rotating column of air in contact with both the surface of the earth and the base of a cumulonimbus cloud (thundercloud) or a cumulus cloud, in rare cases. Tornadoes come in many sizes but typically form a visible condensation funnel whose narrowest end reaches the earth and surrounded by a cloud of debris and dust .

  7. List of highly toxic gases - Wikipedia

    en.wikipedia.org/wiki/List_of_highly_toxic_gases

    Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.

  8. Top 25 most dangerous college campuses in America revealed

    www.aol.com/news/2015-02-14-top-25-most...

    Analyzing data from the Office of Postsecondary Education Campus Safety and Security, researchers at FindTheBest recently compiled a list of thetop 25 most dangerous colleges, determining the four ...

  9. Occupational hazard - Wikipedia

    en.wikipedia.org/wiki/Occupational_hazard

    An occupational hazard is a hazard experienced in the workplace. This encompasses many types of hazards, including chemical hazards, biological hazards (biohazards), psychosocial hazards, and physical hazards.