• ES Picture of the Day 15 2020

    From Black Panther@21:1/186 to All on Tue Dec 15 11:01:00 2020
    EPOD - a service of USRA

    The Earth Science Picture of the Day (EPOD) highlights the diverse processes and phenomena which shape our planet and our lives. EPOD will collect and archive photos, imagery, graphics, and artwork with short explanatory
    captions and links exemplifying features within the Earth system. The
    community is invited to contribute digital imagery, short captions and
    relevant links.

    November Gales on Lake Michigan

    December 15, 2020

    IMG_4771 copy

    Photographer: Timothy Wenzel
    Summary Author: Timothy Wenzel

    Great Lakes gales are often referred to as the Witches of
    November. They’re caused by intense low pressure drawing very cold
    air down from Canada, over the relatively warm Great Lakes,
    creating almost hurricane-like conditions. A tragic example was the
    sinking of the Edmund Fitzgerald on November 10, 1975.
    Approximately 6,000 shipwrecks lie at the bottom of the Great
    Lakes, many from unfortunate encounters with forceful, late autumn
    The white caps in this photo on Lake Michigan were generated by a
    classic northwest gale that began building waves in the morning
    hours of November 1, 2020. By 3:00 p.m. significant wave heights
    (crest to trough) approached 13 feet (4 m). Winds gusts exceeded 45 mph
    or about 40 kts. Click here to see a 4x slow-motion video that
    nicely illustrates the sheer power of these waves.
    Photo Details: Canon EOS 5D Mark IV; Software: Adobe Photoshop 22.0
    (Macintosh); Exposure Time: 0.0008s (1/1250); Aperture: ƒ/13.0; ISO
    equivalent: 400; Focal Length: 400.0mm; Lens: EF400mm f/5.6L USM
    * Ludington, Michigan Coordinates: 43.9553, -86.4526

    Related EPODs

    November Gales on Lake Michigan Marine Layer over Lisbon
    Sombrero del Teide Cibiana di Cadore and Circumzenithal Arc
    Reflecting Fog Twilight Rays

    Atmospheric Effects Links

    * Atmospheric Optics
    * Color and Light in Nature
    * The Colors of Twillight and Sunset
    * Refraction Index
    * Image Gallery: Atmospheric Effects
    * What is a Rainbow?

    Earth Science Picture of the Day is a service of the Universities
    Space Research Association.


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