Heavy Rainfall Threat to the South from Possible Tropical/Subtropical System Over the Weekend

A tropical disturbance over the Yucatan Peninsula has a High chance of developing into a tropical or subtropical depression in the Gulf over the Memorial Day Weekend. This system has the potential to bring heavy rainfall to portions of the Gulf Coast over the next 5-7 days. The threat of rip currents will also steadily increase along the Gulf from FL to LA over the holiday weekend.
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Honolulu, HI Local Forecast Office

3NM SSE Waimanalo Beach HI

Marine Point Forecast

[NOTICE]
  • Overnight

    Isolated Showers

    E 17kt
    < 1ft

    Low: 75 °F

    Small Craft Advisory
    Small Craft Advisory

  • Friday

    Scattered Showers

    ENE 22kt
    < 1ft

    High: 80 °F

  • Friday
    Night

    Isolated Showers

    ENE 22kt
    < 1ft

    Low: 74 °F

  • Saturday

    Scattered Showers

    ENE 20kt
    < 1ft

    High: 80 °F

  • Saturday
    Night

    Isolated Showers

    ENE 18kt
    < 1ft

    Low: 74 °F

  • Sunday

    Isolated Showers

    ENE 17kt
    < 1ft

    High: 80 °F

  • Sunday
    Night

    Isolated Showers

    E 15kt
    < 1ft

    Low: 74 °F

  • Memorial
    Day

    Scattered Showers

    ENE 13kt
    < 1ft

    High: 80 °F

  • Monday
    Night

    Scattered Showers

    ENE 10ktWinds Decreasing
    < 1ft

    Low: 74 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:01 pm HST May 24, 2018
Forecast Valid: 4am HST May 25, 2018-6pm HST May 31, 2018

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH EARLY FRIDAY MORNING...

Synopsis: PHZ100-251930- 915 PM HST Thu May 24 2018 .Synopsis for Hawaiian coastal waters... High pressure north of the state will keep breezy trades in place through Friday night. The trades will trend down over the Memorial Day weekend as a front approaches from the northwest. A new high building north of the state will strengthen the trades beginning on Tuesday, with breezy conditions returning for the middle and latter part of next week. $$

Overnight
E wind around 17 kt. Isolated showers. S swell 2 ft at 17 seconds. Waves 1 ft or less.
Friday
ENE wind 19 to 22 kt, with gusts as high as 28 kt. Scattered showers, mainly before noon. S swell 2 ft at 16 seconds. Waves 1 ft or less.
Friday Night
ENE wind 17 to 22 kt, with gusts as high as 28 kt. Isolated showers. S swell 2 ft at 15 seconds. Waves 1 ft or less.
Saturday
ENE wind 17 to 20 kt, with gusts as high as 26 kt. Scattered showers, mainly before noon. S swell 1 ft. Waves 1 ft or less.
Saturday Night
ENE wind 16 to 18 kt. Isolated showers before midnight. S swell 1 ft. Waves 1 ft or less.
Sunday
ENE wind 15 to 17 kt. Isolated showers before noon. S swell 1 ft. Waves 1 ft or less.
Sunday Night
E wind 13 to 15 kt. Isolated showers. S swell 1 ft. Waves 1 ft or less.
Memorial Day
ENE wind 11 to 13 kt. Scattered showers. S swell 1 to 2 ft. Waves 1 ft or less.
Monday Night
ENE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Scattered showers. S swell 2 ft. Waves 1 ft or less.

*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 157.67°W
Last Update: 6:01 pm HST May 24, 2018
Forecast Valid: 4am HST May 25, 2018-6pm HST May 31, 2018
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