• MODIS Pic of the Day 17 September 2022

    From Dan Richter@1:317/3 to All on Sat Sep 17 12:00:44 2022
    September 17, 2022 - Super Typhoon Nanmadol Threatens Japan

    Typhoon Nanmadoi
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    Super Typhoon Nanmadol reached peak strength on September 16, 2022, as
    it headed towards a potentially devastating landfall over Japan. The
    Moderate Resolution Imaging Spectroradiometer (MODIS) on board NASA’s
    Aqua satellite acquired a true-color image of the storm on that same
    day.

    According to the Joint Typhoon Warning Center (JTWC), at 5:00 p.m. EDT
    (2100 UTC) on September 16 Nanmadol’s maximum sustained winds reached
    155 mph (249.5 km/h) with gusts up to 190 mph (306 km/h). That places
    it as a strong Category 4 storm on the Saffir-Simpson Hurricane Wind
    Scale. At that time, the Super Typhoon was located about 379 miles (610
    km) east of Kadena Air Base, Okinawa, Japan and was traveling
    northwestward. Maximum significant wave height was estimated at 52
    feet.

    Since that time, Super Typhoon Nanmadol (also known as Josie in the
    Philippines) has begun to weaken as it continues on a track to impact
    Japan. At 11:00 p.m. EDT September 16 (0300 UTC on September 17), the
    JTWC advised that maximum sustained winds were at 150 mph (241 km/h)
    with gusts to 184 mph (296 km/h), which is still falls within Category
    4. At that time, Nanmadol was located 330 miles (531 km) east of Kadena
    Air Base and was continuing to track northwestward.

    Super Typhoon Nanmadol is expected to continue to weaken slightly
    through September 17, although it is still expected to remain a
    Category 4 storm carrying maximum sustained winds of 138 mph (222 km/h)
    by the end of that day. It should be at or near this strength as it
    passes just southwest of Yaku Shima Island on September 18. It is
    forecast to make a sharp turn to the northeast, which will accelerate
    weaking before making landfall in the vicinity of Nagasaki by September
    19. It will then accelerate quickly to the northeast, which may carry
    it over mainland Japan. The maximum sustained wind near landfall is
    forecast at about 104 mph (167 km/h), which places it as a Category 2
    storm.

    According to the Global Disaster Alert and Coordination System (GDACS),
    34.8 million people may be impacted by Category 1 winds or higher. Most
    of these will be in the Kagoshima prefecture, which is located on the
    southern tip of Kyushu Island and includes several nearby islands. A
    report by The Japan Times states that the Japan Meteorological Agency
    has forecast only slight weakening before landfall, which would bring
    it onshore at a high windspeed than currently predicted by JTWC. The
    report also said that “The agency warned of high waters, storm surges,
    landslides, flooding and overflowing rivers. It said the wind could be
    so strong in areas like southern Kyushu that some homes would be a risk
    of collapse, urging residents to stay in sturdy building and stay away
    from windows.”

    Image Facts
    Satellite: Aqua
    Date Acquired: 9/16/2022
    Resolutions: 1km (2.9 MB), 500m (2.4 MB),
    Bands Used: 1,4,3
    Image Credit: MODIS Land Rapid Response Team, NASA GSFC



    https://modis.gsfc.nasa.gov/gallery/individual.php?db_date=2022-09-17

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