Greatest Potential for Coastal Flooding from Astronomical Tides, Today and Friday

December 26, 2019, 8:41 AM HST · Updated December 26, 12:58 PM
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A special weather statement remains in effect for all shores of the main Hawaiian Islands, due to unusually high water levels and the possibility of coastal flooding.

Forecasters with the National Weather Service say the greatest potential for coastal flooding impacts will be this morning and on Friday, especially around the time of the peak high tide, which occurs between midnight and daybreak in most areas.

The higher than normal astronomical tides will gradually lower from Friday through the weekend.  Along with the diminished winds, this will lessen the potential for coastal  flooding.  The NWS says the special weather statement remains in effect through this weekend.

Peak high tides for Kahului, Maui will be:

  • 2.75 feet at 3:10 a.m. on Thursday, Dec. 26, 2019;
  • and 2.7 feet at 3:45 a.m. on Friday, Dec. 27, 2019.
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Peak high tides for Lahaina will be:

  • 2.45 feet at 4:28 a.m. on Thursday, Dec. 26, 2019;
  • and 2.4 feet at 5:03 a.m. on Friday, Dec. 27, 2019.

Peak high tides for Māʻalaea Bay in Kīhei will be:

  • 2.59 feet at 5:02 a.m. on Thursday, Dec. 26, 2019;
  • and 2.53 feet at 5:37 a.m. on Friday, Dec. 27, 2019.

Peak high tides for Hāna, Maui will be:

  • 2.89 feet at 3:50 a.m. on Thursday, Dec. 26, 2019;
  • and 2.83 feet at 4:25 a.m. on Friday, Dec. 27, 2019.

Peak high tides for Honolulu will be at:

  • 4:25 a.m. on Thursday, Dec. 26, 2019;
  • and 5:03 a.m. on Friday, Dec. 27, 2019.

The NWS says water levels at the Honolulu tide gage are running 5 to 10 inches above predicted levels.

The heights and times of the peak high tides vary from place to place.

King Tide at Olowalu (5.26.17) PC: Asa Ellison

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