Excessive Heat From the Midwest to Northeast Today; Heavy Rainfall Threat Increasing Along the western Gulf Coast

Heat Advisories, and in some areas, Excessive Heat Warnings, continue today as hot temperatures and high humidity combine to create dangerous conditions. A slow-moving cold front from the Northeast to the northern Rockies will be the focus for potentially heavy rainfall this week, while tropical moisture moving into the western Gulf Coast will lead to an increased flash flood threat.
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Honolulu, HI Local Forecast Office

8NM ESE Waimanalo Beach HI

Marine Point Forecast

[NOTICE]
  • This
    Afternoon

    Isolated Showers

    NE 12kt
    4ft

    High: 78 °F

  • Tonight

    Isolated Showers

    NE 12kt
    4ft

    Low: 77 °F

  • Tuesday

    Isolated Showers

    NE 11kt
    4ft

    High: 79 °F

  • Tuesday
    Night

    Isolated Showers

    E 11kt
    4ft

    Low: 77 °F

  • Wednesday

    Isolated Showers

    ENE 11kt
    4ft

    High: 80 °F

  • Wednesday
    Night

    Isolated Showers

    E 11kt
    4ft

    Low: 78 °F

  • Thursday

    Isolated Showers

    ENE 17kt
    4-5ft

    High: 79 °F

  • Thursday
    Night

    Isolated Showers

    ENE 17kt
    5ft

    Low: 78 °F

  • Friday

    Isolated Showers

    ENE 19kt
    5-6ft

    High: 79 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:01 am HST Jun 18, 2018
Forecast Valid: 12pm HST Jun 18, 2018-6pm HST Jun 24, 2018

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Detailed Forecast


Synopsis: PHZ100-190745- 912 AM HST Mon Jun 18 2018 .Synopsis for Hawaiian coastal waters... Weak high pressure north of the islands will bring light easterly winds through today. Starting tonight, a dissipating front will drift south toward the islands and stall just north of the islands. This will cause the winds to weaken Tuesday and Wednesday. High pressure northeast of the islands will return Thursday and strengthen on Friday. $$

This Afternoon
NE wind around 12 kt. Isolated showers. Mixed swell...NNW 2 ft at 11 seconds and S 2 ft at 12 seconds. Waves around 4 ft.
Tonight
NE wind 8 to 12 kt. Isolated showers. Mixed swell...NNW 1 to 2 ft at 10 seconds and SSW 1 to 2 ft at 10 seconds building to at 17 seconds . Waves around 4 ft.
Tuesday
NE wind 8 to 11 kt. Isolated showers. Mixed swell...NNW 1 ft at 10 seconds and SW 1 ft at 22 seconds. Waves around 4 ft.
Tuesday Night
E wind around 11 kt. Isolated showers. Widespread haze after 8pm. Mixed swell...NNW 1 ft and SW 1 ft. Waves around 4 ft.
Wednesday
ENE wind around 11 kt. Isolated showers. Widespread haze. Mixed swell...NNW 1 ft and SW 1 ft. Waves around 4 ft.
Wednesday Night
E wind around 11 kt. Isolated showers. Widespread haze. Mixed swell...NNW 1 ft and SW 1 ft. Waves around 4 ft.
Thursday
ENE wind 11 to 17 kt. Isolated showers. Widespread haze before 9am. Mixed swell...NNW 1 ft and SW 1 ft. Waves 4 to 5 ft.
Thursday Night
ENE wind 15 to 17 kt. Isolated showers. Mixed swell...NNW 1 ft and SW 1 ft. Waves around 5 ft.
Friday
ENE wind 15 to 19 kt. Isolated showers. Mixed swell...NNW 1 ft and SW 1 ft. Waves 5 to 6 ft.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 21.27°N 157.55°W
Last Update: 6:01 am HST Jun 18, 2018
Forecast Valid: 12pm HST Jun 18, 2018-6pm HST Jun 24, 2018
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