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  2. 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]

  3. Thunderstorm - Wikipedia

    en.wikipedia.org/wiki/Thunderstorm

    Thunderstorm asthma is the triggering of an asthma attack by environmental conditions directly caused by a local thunderstorm. During a thunderstorm, pollen grains can absorb moisture and then burst into much smaller fragments with these fragments being easily dispersed by wind.

  4. Dan Gibson - Wikipedia

    en.wikipedia.org/wiki/Dan_Gibson

    "Solitudes: Sounds of Nature" Best sound in Non-Theatrical Film [6] American Film Festival: 1972 "Fly Geese F-L-Y" Blue ribbon for Best Children’s Film [7] U.S. National Outdoor-Travel Film Festival: 1973 "Golden Autumn" Teddy Award [8] Canadian Film Awards: 1972 "Dan Gibson's Nature Family" Best Wildlife Film of the Year [9] Canadian Film ...

  5. Storm - Wikipedia

    en.wikipedia.org/wiki/Storm

    A storm seen at the Baltic Sea near the island of Öland, Sweden.. A storm is any disturbed state of the natural environment or the atmosphere of an astronomical body. [citation needed] It may be marked by significant disruptions to normal conditions such as strong wind, tornadoes, hail, thunder and lightning (a thunderstorm), heavy precipitation (snowstorm, rainstorm), heavy freezing rain ...

  6. St. Elmo's fire - Wikipedia

    en.wikipedia.org/wiki/St._Elmo's_fire

    Illustration of St. Elmo's fire on a ship at sea Electrostatic discharge flashes across the windscreen of a KC-10 cockpit.. St. Elmo's fire (also called witchfire or witch's fire [1]) is a weather phenomenon in which luminous plasma is created by a corona discharge from a rod-like object such as a mast, spire, chimney, or animal horn [2] in an atmospheric electric field.

  7. Astraphobia - Wikipedia

    en.wikipedia.org/wiki/Astraphobia

    A person with astraphobia will often feel anxious during a thunderstorm even when they understand that the threat to them is minimal. Some symptoms are those accompanied with many phobias, such as trembling, crying, sweating, panicked reactions, sudden feeling of using the bathroom, nausea, feeling of dread, insertion of the fingers in the ears, and rapid heartbeat.

  8. Armero tragedy - Wikipedia

    en.wikipedia.org/wiki/Armero_tragedy

    The storm's heavy rain and constant thunder may have overpowered the noise of the volcano, and with no systematic warning efforts, the residents of Armero were completely unaware of the continuing activity at Ruiz.

  9. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    Blue light is scattered more than other wavelengths by the gases in the atmosphere, surrounding Earth in a visibly blue layer at the stratosphere, above the clouds of the troposphere, when seen from space on board the ISS at an altitude of 335 km (208 mi) (the Moon is visible as a crescent in the far background).