Navigating the Waters After Fausto: Small Craft Advisories Remain in Effect Across Portions of Hawaii
The Hawaiian Islands are experiencing a transition in weather patterns as Post-Tropical Cyclone Fausto continues its progression tracking north of the island chain. While land areas are seeing a shift toward typical summer conditions, the marine environment remains hazardous.
National Weather Service (NWS) forecasts highlight active Small Craft Advisories (SCAs) for select coastal channels and windward zones as strong trade winds and lingering high seas impact mariners.
Fast Facts: Post-Fausto Marine & Weather Conditions
Current Status: Fausto has weakened into a post-tropical system while tracking westward north of the islands.
Impacted Marine Zones: Small Craft Advisories are in effect for wind-prone areas, including Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters, and Big Island Southeast Waters.
Core Hazards: Strong trade wind gusts, choppy seas, and elevated east swells creating rough conditions for small watercraft.
Action Required: Boaters and operators of small vessels should heed warnings, check marine forecasts, and avoid hazardous waters until conditions improve.
What to Expect in the Wake of Fausto
As Fausto’s remnant low pushes further off to the northwest, variable to light northerly winds are quickly giving way to re-establishing east-southeast and easterly trade winds. These trades are building progressively from east to west across the state.
Fresh to strong trade winds will persist through the weekend, particularly around the windward channels and favored coasts of Maui County and the Big Island. This surge in wind speed is the primary driver behind the ongoing Small Craft Advisories, making navigation treacherous for smaller boats and recreational craft.
Surf and Swell Conditions
East Shores: Residual easterly swell combined with building short-period trade wind chop will keep surf elevated along exposed eastern exposures.
South Shores: A medium-period south swell is pushing south shore surf close to summer averages (5–6 feet) before gradually fading through the weekend.
North Shores: Expect flat to tiny surf conditions as Fausto tracks away from the region.
Marine Safety Checklist for Boaters
When Small Craft Advisories are active, marine conditions can deteriorate rapidly. Keep these safety tips in mind:
Postpone Non-Essential Trips: If your vessel is on the smaller side, consider staying in port until advisory conditions expire.
Secure Mooring and Gear: Check lines on docked or moored boats to prevent chafing or breaking free during strong wind gusts.
Monitor VHF Channels: Stay tuned to local marine radio broadcasts (VHF-FM Channels 16 and 22A) for real-time updates and notices to mariners.
Watch the Skies: While severe land impacts from Fausto remain low, shifting winds and localized downsloping conditions can still generate choppy, unpredictable local waters.
Stay tuned to NWS Honolulu and local forecasts for updates on whether Small Craft Advisories will expand to additional coastal waters over the coming days.
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