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:Wed, 21-Mar-2018 3:14am HST
Effective:Wed, 21-Mar-2018 3:14am HST
Expires:Thu, 22-Mar-2018 6:00pm HST

Areas affected: Big Island North and East; Kauai Windward; Lanai Makai; Maui Central Valley; Maui Windward West; Molokai Leeward; Molokai Windward; Niihau; Oahu Koolau; Oahu North Shore; Olomana; Windward Haleakala
Instructions: These dangerous conditions mean that only highly experienced persons should enter the water. Inexperienced persons should remain off beaches and adjacent beachfront areas. Large breaking surf, significant shorebreak, and dangerous currents make entering the water very hazardous.

Message summary: ...high surf warning for north and east facing shores of niihau kauai oahu molokai lanai maui and the big island...
.a large northeast swell is here. The surf will spike up rapidly to warning level of 25 feet this morning. Very dangerous and potentially damaging surf can be expected with this swell. The surf will peak this afternoon and slowly begin subsiding tonight. The swell will continue to trend down through friday.
...high surf warning now in effect until 6 pm hst thursday...
* surf...along north and east facing shores, rapidly building to 20 to 25 feet.
* will build rapidly to warning level this morning, and continue for the rest of the day.
* impacts...very high...expect ocean water surging and sweeping across beaches, coastal benches, and lava flows creating the potential for impacts to coastal properties and infrastructure, including roadways. Powerful longshore and rip currents will be present at most beaches. Large breaking waves and strong currents may impact harbor entrances and channels causing challenging boat handling, such as kahului and hilo harbors.
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Source: NWS Watches, Warnings or Advisories for zone HIZ020

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