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  2. Hoy No Circula - Wikipedia

    en.wikipedia.org/wiki/Hoy_No_Circula

    Hoy No Circula (literally in Spanish: "today [your car] does not circulate", known as No-drive days) is the name of an environmental program intended to improve the air quality of Mexico City. A similar coordinated program operates within the State of México , which surrounds Mexico City on three sides.

  3. 3 surprising places in the tropics that have had freezes - AOL

    www.aol.com/weather/3-surprising-places-tropics...

    The 1977 cold snap caused more than $300 million in agricultural damage in South Florida, known for its orange groves and other crops. Coral can also be harmed during these cold snaps, as was the ...

  4. Upper tropospheric cyclonic vortex - Wikipedia

    en.wikipedia.org/wiki/Upper_tropospheric...

    An upper tropospheric cyclonic vortex is a vortex, or a circulation with a definable center, that usually moves slowly from east-northeast to west-southwest and is prevalent across Northern Hemisphere's warm season. Its circulations generally do not extend below 6,080 metres (19,950 ft) in altitude, as it is an example of a cold-core low.

  5. Tehuantepecer - Wikipedia

    en.wikipedia.org/wiki/Tehuantepecer

    This TRMM weather satellite shows the wind impact of a Tehuantepecer from December 16, 2000, at 13:15 UTC.. Its leading edge shows up as a rope cloud within the visible and infrared channels of weather satellite images, and since it lies at the leading edge of a density (temperature and dew point) discontinuity, its leading edge by definition it is a cold front, though it has also been ...

  6. Southern states declare emergencies ahead of potentially ...

    www.aol.com/coldest-wind-chills-years-threaten...

    Much of the US plunged into cold air. A brutally cold blast of Siberian air has caused temperatures to plummet 20 to 30 degrees below normal from the Canadian border to the Mexican border and ...

  7. Southern New Mexico snow & bitter cold air

    www.aol.com/southern-mexico-snow-bitter-cold...

    NEW MEXICO (KRQE) – Snowy, breezy, and bitterly cold conditions are the big weather stories with most of the snow south of I-40 causing travel issues with localized low visibility because of not ...

  8. February 2021 North American cold wave - Wikipedia

    en.wikipedia.org/wiki/February_2021_North...

    In the city of Saltillo, temperatures reached as low as −4.5 °C (23.9 °F) early on February 16 as bitterly cold air surged south from Canada and the United States into the country of Mexico. [29] It was the coldest temperature reported in the city since a cold wave in 2014. [citation needed]

  9. Westerlies - Wikipedia

    en.wikipedia.org/wiki/Westerlies

    The ACC is the dominant circulation feature of the Southern Ocean and, at approximately 125 Sverdrups, the largest ocean current. [12] In the northern hemisphere, the Gulf Stream , part of the North Atlantic Subtropical Gyre , has led to the development of strong cyclones of all types at the base of the Westerlies, both within the atmosphere ...