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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. 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 ...

  4. Mexico hit by hours of rolling blackouts due to high ...

    www.aol.com/news/mexico-hit-hours-rolling...

    The larger blackout was partly caused by a spike in power demand in the early evening, when many Mexicans arrive home and turn on television sets, fans and air conditioners. Mexico has broken ...

  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. Minimum-cost flow problem - Wikipedia

    en.wikipedia.org/wiki/Minimum-cost_flow_problem

    The minimum-cost flow problem (MCFP) is an optimization and decision problem to find the cheapest possible way of sending a certain amount of flow through a flow network.A typical application of this problem involves finding the best delivery route from a factory to a warehouse where the road network has some capacity and cost associated.

  7. Climate of Mexico - Wikipedia

    en.wikipedia.org/wiki/Climate_of_Mexico

    Cold: −29 °C (−20.2 °F) in Los Lamentos, Chihuahua on 11 January 1962 [3] Precipitation Western Hemisphere record for 24-hour rainfall : 1633.98 mm (64.33 inches) over the time period of 12:30 UTC on 21 October 2005 to 12:30 UTC 22 October 2005 on Isla Mujeres , Quintana Roo during the passage of Hurricane Wilma . [ 4 ]

  8. Volcanic ash forces some airlines to suspend flights from ...

    www.aol.com/news/volcanic-ash-forces-airlines...

    MEXICO CITY (Reuters) -Mexico City International Airport on Tuesday said airlines have canceled 22 domestic and international flights to carry out safety checks after planes encountered ash from ...

  9. 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.