Marine Weather for PH 110

Active Advisory: (US Severe Weather)
Forecast as of 3:43 PM HST on November 23, 2017
Dangerous conditions possible in north facing harbors
Kauai Northwest Waters-Kauai Windward Waters-Oahu Windward Waters-
Maui County Windward Waters-Big Island Windward Waters-
A very large north swell will continue to impact the coastal waters tonight and Friday. The swell...and strong northeast winds will combine to produce large breaking waves in north facing Harbor entrances and may cause Harbor surges. Haleiwa Boat Harbor...Hilo Harbor and Kahului Harbor are likely to be affected. Mariners using these harbors should exercise caution when entering or leaving port and when mooring or launching vessels. The swell is expected to slowly subside through Friday.

Watches & Warnings

Small Craft Advisory
Issued: 4:27 PM HST Nov. 23, 2017 – National Weather Service

... Small Craft Advisory now in effect until 6 PM HST Sunday...

* winds and seas... northeast winds 20 to 30 kt with higher gusts.
Seas 12 to 17 feet... subsiding to 6 to 12 feet Saturday.

Precautionary/preparedness actions...

A Small Craft Advisory means that winds speeds of 25 to 33 knots
and/or seas 10 feet or greater are expected to produce conditions
hazardous to small craft. Inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in these

Marine Weather

Marine Weather Links

Hawaiian coastal waters within 40 nautical miles including the Hawaiian islands humpback whale National marine Sanctuary.

Hawaiian offshore waters beyond 40 nautical miles out to 240 nautical miles including the portion of the papahanaumokuakea marine National Monument east of French Frigate Shoals

Marine & Boating Location Search

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Coastal Water Temperatures

Place Temperature
No Stations Reporting

Open Sea Buoy Information

Place ID Sea Temp Wave Height
Waimea Bay, HI 51201 76 °F 13.45 ft
Click the Station ID for daily observations and history.

Tide Heights

2017-11-24 2017-11-25
3 AM 9 AM 3 PM 9 PM 3 AM 9 AM 3 PM 9 PM

Tide Information

Date Time Tide Type Height
Hanalei Bay, Kauai Island, Hawaii:  
2017-11-24 06:46 AM HST High Tide 1.90
2017-11-24 02:23 PM HST Low Tide 0.45
2017-11-24 07:54 PM HST High Tide 0.71
2017-11-24 11:19 PM HST Low Tide 0.50
2017-11-25 07:39 AM HST High Tide 1.80

More Tide Locations