High Surf Advisory issued April 8 at 3:01PM HST until April 9 at 6:00AM HST by NWS Honolulu HI
Issue date: 2026-04-09T01:01+00:00
...HIGH SURF ADVISORY FOR SOUTH FACING SHORES OF ALL HAWAIIAN ISLANDS... .Surf along south facing shores has risen to advisory thresholds. * WHAT...Large breaking waves of 7 to 10 feet with occasional higher sets to 12 feet. * WHERE...South facing shores of Niihau, Kauai, Oahu, Molokai, Maui, Lanai, Kahoolawe, and the Big Island. * WHEN...Until 6 AM HST Thursday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
High Wind Watch issued April 8 at 1:28PM HST until April 10 at 6:00AM HST by NWS Honolulu HI
Issue date: 2026-04-08T23:28+00:00
* WHAT...South winds 20 to 30 mph with gusts up to 60 mph possible. * WHERE...Central Oahu, Koolau Leeward, Koolau Windward, Oahu North Shore, Olomana, and Waianae Mountains, especially areas north of steep terrain. * WHEN...From Thursday morning through late Thursday night. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.
Flood Watch issued April 8 at 1:09PM HST until April 10 at 6:00PM HST by NWS Honolulu HI
Issue date: 2026-04-08T23:09+00:00
...FLOOD WATCH FOR ALL HAWAIIAN ISLANDS... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...All Hawaiian Islands. * WHEN...Through Friday afternoon. * IMPACTS...Significant flooding may occur due to excessive rainfall and overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain. * ADDITIONAL DETAILS... - Low pressure west of the islands will draw abundant moisture northward as it strengthens. This will bring potential for heavy rain and thunderstorms leading to flash flooding to all Hawaiian islands.
