Watches, Warnings, and Advisories

Current Watches, Warnings and Advisories for Windward Haleakala (HIZ020) Hawaii Issued by the National Weather Service


High Surf Warning High Surf Warning - Windward Haleakala (Hawaii)

Updated:Thu, 23-Nov-2017 3:30am HST
Effective:Thu, 23-Nov-2017 3:30am HST
Expires:Fri, 24-Nov-2017 6:00am HST

Areas affected: Big Island North and East; Kauai Leeward; Kauai Windward; Maui Central Valley; Maui Leeward West; Maui Windward West; Molokai Leeward; Molokai Windward; Niihau; Oahu Koolau; Oahu North Shore; Olomana; Windward Haleakala
Instructions: Stay well away from the shoreline in the affected areas. Be prepared for road closures.

Message summary: ...high surf warning remains in effect for north and east facing shores of niihau kauai oahu molokai maui and the big island...
.a strong low pressure system over the northeast pacific ocean has generated a large north swell which will peak today...then slowly decline through friday.
...high surf warning remains in effect until 6 am hst friday...
* surf...along north facing shores 25 to 30 feet with occasional sets to 35 feet on outer reefs...and to 10 to 15 feet along east facing shores of niihau kauai oahu molokai maui and the big island.
* timing...peaking today...then slowly declining through friday.
* impacts...high...expect ocean water occasionally sweeping across portions of beaches...creating the potential for impacts to coastal properties and infrastructure...including roadways. In addition...expect very strong breaking waves and strong currents. Breaking waves may occasionally impact harbors making navigating the harbor channel dangerous.
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Source: NWS Watches, Warnings or Advisories for zone HIZ020

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