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A natural disaster is the very harmful impact on a society or community after a natural hazard event. Some examples of natural hazard events include avalanches, droughts, earthquakes, floods, heat waves, landslides, tropical cyclones, volcanic activity and wildfires. [1] Additional natural hazards include blizzards, dust storms, firestorms ...
A blizzard is a severe snowstorm characterized by strong sustained winds and low visibility, lasting for a prolonged period of time—typically at least three or four hours. A ground blizzard is a weather condition where snow is not falling but loose snow on the ground is lifted and blown by strong winds.
The January 2022 North American blizzard caused widespread and disruptive impacts to the Atlantic coast of North America from northern Delaware to Nova Scotia with as much as 2.5 feet (30 in) of snowfall, blizzard conditions and coastal flooding at the end of January 2022. Forming from the energy of a strong mid- to upper-level trough, the ...
Severe weather is any dangerous meteorological phenomenon with the potential to cause damage, serious social disruption, or loss of human life. [1][2][3] These vary depending on the latitude, altitude, topography, and atmospheric conditions. High winds, hail, excessive precipitation, and wildfires are forms and effects, as are thunderstorms ...
Winter storms are formed when moist air rises up into the atmosphere, creating low pressure near the ground and clouds up in the air. The air can also be pushed upwards by hills or large mountains. The upward motion is called lift. [1] The moisture is collected by the wind from large bodies of water, such as a big lake or the ocean.
March 2021 North American blizzard. The March 2021 North American blizzard was a record-breaking blizzard in the Rocky Mountains and a significant snowstorm in the Upper Midwest that occurred in mid-March 2021. It brought Cheyenne, Wyoming their largest two-day snowfall on record, and Denver, Colorado their second-largest March snowfall on record.
Disease outbreak. In epidemiology, an outbreak is a sudden increase in occurrences of a disease when cases are in excess of normal expectancy for the location or season. It may affect a small and localized group or impact upon thousands of people across an entire continent. The number of cases varies according to the disease-causing agent, and ...
A medical dictionary definition of pandemic is " an epidemic occurring on a scale that crosses international boundaries, usually affecting people on a worldwide scale ". [14] A disease or condition is not a pandemic merely because it is widespread or kills many people; it must also be infectious.