Slight risk of severe weather on Monday

The NWS Storm Prediction Center expects a slight risk of severe weather on Monday. The area of greatest concern extends from western Maine to eastern Ohio. The main threats with these storms will be damaging winds and large hail, but an isolated tornado cannot be ruled out.
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Honolulu, HI Local Forecast Office

8NM ESE Waimanalo Beach HI

Marine Point Forecast

[NOTICE]
  • Overnight

    Isolated Showers

    ENE 20kt
    8ft

    Low: 78 °F

    Small Craft Advisory
    Small Craft Advisory

  • Monday

    Isolated Showers

    ENE 17kt
    8ft

    High: 80 °F

  • Monday
    Night

    Isolated Showers

    NE 17kt
    8ft

    Low: 78 °F

  • Tuesday

    Isolated Showers

    NE 17kt
    8ft

    High: 80 °F

  • Tuesday
    Night

    Scattered Showers

    ENE 17kt
    8ft

    Low: 78 °F

  • Wednesday

    Heavy Rain

    ENE 21kt
    9-10ft

    High: 78 °F

  • Wednesday
    Night

    Heavy Rain

    Winds IncreasingN 37kt
    Waves Building19ft

    Low: 77 °F

  • Thursday

    Heavy Rain

    NNW 38ktWinds Decreasing
    21ftWaves Subsiding

    High: 78 °F

  • Thursday
    Night

    Showers Likely

    E 20kt
    9ft

    Low: 78 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:12 pm HST Aug 2, 2015
Forecast Valid: 4am HST Aug 3, 2015-6pm HST Aug 9, 2015

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM HST MONDAY...

Synopsis: HIGH PRESSURE WILL REMAIN CENTERED FAR NORTH-NORTHEAST OF THE STATE ALL WEEK. TROPICAL CYCLONE GUILLERMO WILL NEAR THE STATE FROM THE EAST TUESDAY AND MAY THREATEN THE ISLANDS WEDNESDAY AND THURSDAY. A WEAK LOW WILL CONTINUE PASSING SOUTH OF THE STATE TONIGHT.

Overnight
ENE wind around 20 kt, with gusts as high as 26 kt. Isolated showers. Mixed swell...SW 1 ft at 17 seconds and E 4 ft at 16 seconds. Waves around 8 ft.
Monday
ENE wind around 17 kt. Isolated showers before noon. Mixed swell...SW 1 ft at 17 seconds and E 5 ft at 14 seconds. Waves around 8 ft.
Monday Night
NE wind around 17 kt. Isolated showers. Mixed swell...SW 1 ft at 16 seconds and E 5 ft at 13 seconds. Waves around 8 ft.
Tuesday
NE wind around 17 kt. Isolated showers. Mixed swell...SW 1 ft and E 5 ft. Waves around 8 ft.
Tuesday Night
ENE wind around 17 kt. Scattered showers. Mixed swell...SSW 1 ft and E 5 ft. Waves around 8 ft.
Wednesday
ENE wind 17 to 21 kt. Rain likely. The rain could be heavy at times. Mixed swell...SSW 1 ft and E 6 ft. Waves 9 to 10 ft.
Wednesday Night
ENE wind 24 to 29 kt becoming N 32 to 37 kt after midnight. Winds could gust as high as 43 kt. Rain. The rain could be heavy at times. Mixed swell...SSW 1 ft and E 9 ft. Waves 13 ft building to 19 ft.
Thursday
NNW wind 33 to 38 kt becoming ESE 20 to 25 kt in the afternoon. Winds could gust as high as 44 kt. Rain. The rain could be heavy at times. Mixed swell...SSW 1 ft and E 9 ft decreasing to 5 ft. Waves 21 ft subsiding to 14 ft.
Thursday Night
E wind around 20 kt. Showers likely. Mixed swell...SSW 2 ft and E 5 ft. Waves around 9 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: 11:12 pm HST Aug 2, 2015
Forecast Valid: 4am HST Aug 3, 2015-6pm HST Aug 9, 2015
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