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  2. Zero-curtain effect - Wikipedia

    en.wikipedia.org/wiki/Zero-Curtain_Effect

    The zero-curtain effect occurs in cold (particularly periglacial) environments where the phase transition of water to ice is slowed due to latent heat release. The effect is notably found in arctic and alpine permafrost sediments, and occurs where the air temperature falls below 0 ° C (the freezing point of water) followed by a rapid drop in ...

  3. Cold wave - Wikipedia

    en.wikipedia.org/wiki/Cold_wave

    The lowest temperature, −52.5 °C (−62.5 °F) happened in Yerbogachen on Christmas. [78] 2019. In late January, an extreme cold wave hit Canada and the midwest of the United States, bringing temperatures below −30.0 °C (−22.0 °F), with all-time record lows set in several cities. [79]

  4. 'Warming up to 24 below zero:' Record cold surges across ...

    www.aol.com/warming-24-below-zero-record...

    A water main beneath one of the city's main streets burst Monday, flooding and freezing an intersection, and crews worked for hours in minus 20-degree temperatures to make repairs, Kleen said.

  5. Freezing air temperature - Wikipedia

    en.wikipedia.org/wiki/Freezing_air_temperature

    In the southern part of Finland, -15 °C (5 °F) is considered the limit of severe frost. The thermometer in the picture shows -17 °C (1.4 °F). The English word "frost" has 2 base meanings that are related to each other but nevertheless sufficiently different: temperature of air below the freezing point of water (ca 273 K)

  6. Records Shattered From Northern Plains To The South As Arctic ...

    www.aol.com/news/over-100-cold-temperature...

    Bismarck, North Dakota, plunged to 39 degrees below zero Tuesday, their coldest temperature since Jan. 15, 2009 and only 6 degrees shy of their all-time record low.

  7. Temperatures could drop as low as 20 to 30 degrees below zero in the northern Plains both Friday and Saturday night and combine with gusty winds to make for frigid wind chills as low as 50 degrees ...

  8. Record-breaking cold: Temperatures to plunge to as much as 50 ...

    www.aol.com/news/frigid-cold-moving-across-us...

    Temperatures will plunge as much as 50 degrees below February averages, with more than 270 temperature records across at least 27 states. Snow headed for flooded areas in Kentucky and West Virginia

  9. Subarctic climate - Wikipedia

    en.wikipedia.org/wiki/Subarctic_climate

    However, the summers are short; no more than three months of the year (but at least one month) must have a 24-hour average temperature of at least 10 °C (50 °F) to fall into this category of climate, and the coldest month should average below 0 °C (32 °F) (or −3 °C (27 °F)). Record low temperatures can approach −70 °C (−94 °F).