National Weather Service United States Department of Commerce

Oppressive heat and humidity building into the central and southeast U.S.

A heat wave is building into parts of the central and southeast U.S. this week. The combination of heat and humidity will lead to dangerous heat indices, especially in parts of the central Mississippi River Valley where an Excessive Heat Warning is in effect. Heat Advisories are in effect elsewhere across the region. Relief is not expected for several days.
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10NM NE Waimanalo Beach HI

Marine Point Forecast [NOTICE]

Tonight

Isolated Showers

ENE 16kt
5ft

Low: 79 °F

Thursday

Scattered Showers

ENE 16kt
6ft

High: 80 °F

Thursday
Night

Scattered Showers

ENE 16kt
6ft

Low: 79 °F

Friday

Scattered Showers

ENE 16kt
6ft

High: 80 °F

Friday
Night

Scattered Showers

ENE 15kt
6ft

Low: 79 °F

Saturday

Scattered Showers

ENE 15kt
4-5ft

High: 80 °F

Saturday
Night

Scattered Showers

ENE 14kt
4ft

Low: 79 °F

Sunday

Scattered Showers

ENE 14kt
4ft

High: 80 °F

Sunday
Night

Scattered Showers

ENE 12kt
4ft

Low: 79 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:02 pm HST Aug 20, 2014
Forecast Valid: 9pm HST Aug 20, 2014-6pm HST Aug 27, 2014

View Nearby Observations

Detailed Forecast



  • SynopsisHIGH PRESSURE FAR NORTHEAST OF THE STATE WILL REMAIN NEARLY STATIONARY THROUGH THE WEEKEND.
  • Tonight ENE wind around 16 kt. Isolated showers. SSW swell 2 ft at 17 seconds. Waves around 5 ft.
  • Thursday ENE wind around 16 kt. Scattered showers, mainly after noon. SSW swell 3 ft at 17 seconds. Waves around 6 ft.
  • Thursday Night ENE wind around 16 kt. Scattered showers. SSW swell 3 ft at 15 seconds. Waves around 6 ft.
  • Friday ENE wind around 16 kt. Scattered showers, mainly before noon. SSW swell 4 ft. Waves around 6 ft.
  • Friday Night ENE wind around 15 kt. Scattered showers, mainly after midnight. SSW swell 3 ft. Waves around 6 ft.
  • Saturday ENE wind 13 to 15 kt. Scattered showers before noon. SSW swell 2 ft. Waves 4 to 5 ft.
  • Saturday Night ENE wind around 14 kt. Scattered showers. SSW swell 2 ft. Waves around 4 ft.
  • Sunday ENE wind around 14 kt. Scattered showers. SSW swell 2 ft. Waves around 4 ft.
  • Sunday Night ENE wind around 12 kt. Scattered showers. SSW swell 2 ft. Waves around 4 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.