Hawaii - United States   2026-04-08   Wednesday   19.71N, -155.09W

Hilo

Hawaii - United States
2026-04-08

Flash Flood Warning issued April 8 at 1:49AM HST until April 8 at 5:00AM HST by NWS Honolulu HI

Issue date: 2026-04-08T11:49+00:00

FFWHFO The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Hawaii in Hawaii County * Until 500 AM HST. * At 149 AM HST, radar and automated rain gauges continue to indicate heavy rain falling over the Puna and Kau districts. Rain was falling at a rate of 1 to 3 inches per hour with the heaviest showers over the coastline of the Puna district. Flash flooding is ongoing. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar and automated gauges. IMPACT...Flooding in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures possible in some areas. Landslides are possible in steep terrain. * Some locations that will experience flash flooding include... Hawaiian Paradise Park, Hawaii Volcanoes National Park, Volcano, Glenwood, Mountain View, Hawaiian Acres, Orchidlands Estates, Pahoa, Wood Valley, Pahala, Punaluu Beach, Kawa Flats, Naalehu, Fern Forest, Eden Roc, Fern Acres, Kalapana, Kurtistown and Ainaloa.

High Surf Advisory issued April 7 at 7:40PM HST until April 9 at 6:00AM HST by NWS Honolulu HI

Issue date: 2026-04-08T05:40+00:00

...HIGH SURF ADVISORY FOR SOUTH FACING SHORES OF ALL HAWAIIAN ISLANDS... .Surf along south facing shores will steadily rise tonight and peak on Wednesday above 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.

Winter Storm Watch issued April 7 at 2:48PM HST until April 10 at 6:00PM HST by NWS Honolulu HI

Issue date: 2026-04-08T00:48+00:00

...WINTER STORM WATCH FOR BIG ISLAND SUMMITS ABOVE 12500 FEET... .An upper low will enhance moisture over the Big Island and bring the potential for snow and freezing rain. * WHAT...Snow and freezing rain. Total snow accumulations up 6 inches and ice accumulation up to a quarter inch possible. Winds will gust as high as 55 mph. * WHERE...Big Island Summits. * WHEN...From Wednesday morning through Friday afternoon. * IMPACTS...Ice accretion and snow on roads from this storm will make travel to the summits very difficult to impossible. Visibility may be significantly reduced.

Flood Watch issued April 7 at 2:45PM HST until April 10 at 6:00PM HST by NWS Honolulu HI

Issue date: 2026-04-08T00:45+00:00

...FLOOD WATCH FOR ALL HAWAIIAN ISLANDS... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...All Hawaiian islands. * WHEN...From Wednesday morning 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 will develop west of the islands and draw abundant moisture northward as it strengthens during the next couple of days. This will bring potential for heavy rain and thunderstorms leading to flash flooding over all Hawaiian islands.

Special Weather Statement issued April 7 at 2:42PM HST by NWS Honolulu HI

Issue date: 2026-04-08T00:42+00:00

WHAT...An episodic fountaining eruption is expected within the Kilauea summit caldera. The Hawaiian Volcano Observatory has indicated a potential eruption window extends through Wednesday, April 15th. Fountaining episodes typically last less than 12 hours but ash can remain in the air longer depending on wind and weather. IMPACTS...If an eruption occurs, varying levels of ash, Pele's hair, and other lightweight tephra may fall downwind of the eruption. Smaller particles can travel farther from the eruption site and may affect communities at greater distances. For the next several days, "downwind" will be to the north and northeast of the summit.