Flood Advisory issued March 17 at 6:36PM HST until March 17 at 8:15PM HST by NWS Honolulu HI
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...The island of Kauai in Kauai County. * WHEN...Until 815 PM HST. * IMPACTS...Minor flooding on roads, poor drainage areas, and in streams. * ADDITIONAL DETAILS... - At 633 PM HST, radar and automated rain gauges indicated additional moderate to heavy rain are decreasing over the island of Kauai. Rain was falling at a rate of 0.5 to 1.5 inches per hour. Elevated water levels continue to flow in local streams. - Some locations that will experience flooding include... The entire island of Kauai.
Special Marine Warning issued March 17 at 12:31AM HST until March 17 at 2:30AM HST by NWS Honolulu HI
SMWHFO The National Weather Service in Honolulu has issued a * Special Marine Warning for... Kauai Channel... Kauai Leeward Waters... Kauai Windward Waters... * Until 230 AM HST. * At 1227 AM HST, thunderstorms located south of Kauai are moving north at 10 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... FAD Buoy CK, FAD Buoy WK, Makahuena Point, FAD Buoy KK, FAD Buoy PP, FAD Buoy AA, Kikiaola Harbor, and FAD Buoy Z.
High Wind Warning issued March 15 at 6:45PM HST until March 16 at 6:00AM HST by NWS Honolulu HI
* WHAT...Southwest winds 50 to 65 mph with gusts up to 80 mph. * WHERE...Big Island Summits. * WHEN...Until 6 AM HST Sunday. * IMPACTS...Travel will be difficult, especially for high profile vehicles.
High Surf Advisory issued March 14 at 3:03PM HST until March 15 at 6:00AM HST by NWS Honolulu HI
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI... .A west northwest (300 to 320 degrees) swell will peak tonight at advisory thresholds for north and west facing shores.. * WHAT...Large breaking waves of 12 to 16 feet. * WHERE...North and west Niihau, Kauai, Oahu, Molokai, and north facing shores of Maui. * WHEN...Until 6 AM HST Saturday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous.
Wind Advisory issued March 12 at 5:35PM HST until March 13 at 6:00AM HST by NWS Honolulu HI
* WHAT...East winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...The saddle area of the Big Island. * WHEN...Until 6 AM HST Thursday. * IMPACTS...Winds this strong can tear off shingles, knock down tree branches, blow away tents and awnings and make it difficult to steer, especially for drivers of high profile vehicles.
Wind Advisory issued March 12 at 5:35PM HST until March 12 at 6:00PM HST by NWS Honolulu HI
Winds have lowered below advisory thresholds.
FEMA Updates Flood Maps in Honolulu County
FEMA Updates Flood Maps in Honolulu County OAKLAND, Calif. – The Federal Emergency Management Agency (FEMA) has delivered preliminary flood maps for the City and County of Honolulu. These maps identify revised flood hazards along various streams. The new maps will help building officials, contractors, and homeowners make informed mitigation decisions, thereby contributing to safer, more disaster-resilient communities. Before the new Flood Insurance Rate Maps (FIRMs) become effective, there will be a 90-day appeal period from March 13, 2025, to June 10, 2025. During this time, residents or businesses with supporting technical and scientific information—such as detailed hydraulic or hydrologic data—may
Wind Advisory issued March 11 at 3:45PM HST until March 12 at 6:00AM HST by NWS Honolulu HI
* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph. * WHERE...Portions of the Big Island, Maui, Lanai, and Kahoolawe. Winds will be strongest over and downwind of the mountains and where winds are funneled around and between the terrain. * WHEN...Until 6 AM HST Wednesday. * IMPACTS...Winds this strong can tear off shingles, knock down tree branches, blow away tents and awnings and make it difficult to steer, especially for drivers of high profile vehicles.
Wind Advisory issued March 10 at 3:03PM HST until March 12 at 6:00AM HST by NWS Honolulu HI
* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Portions of the Big Island, Maui, Lanai, and Kahoolawe. Winds will be strongest over and downwind of the mountains and where winds are funneled around and between the terrain. * WHEN...From 6 AM Tuesday to 6 AM HST Wednesday. * IMPACTS...Winds this strong can tear off shingles, knock down tree branches, blow away tents and awnings and make it difficult to steer, especially for drivers of high profile vehicles.
High Surf Advisory issued March 8 at 3:08PM HST until March 9 at 6:00AM HST by NWS Honolulu HI
...HIGH SURF ADVISORY FOR NORTH AND WEST FACING SHORES OF NIIHAU KAUAI OAHU MOLOKAI AND NORTH FACING SHORES OF MAUI... .A moderate, medium- to long-period northwest (310 to 330 degrees) swell will hold near the peak into tonight before slowly declining into early next week. Surf along north and west facing shores will remain above advisory levels through tonight, falling below by Sunday morning. * WHAT...Surf 14 to 18 feet along north facing shores and 10 to 14 feet along west facing shores. * WHERE...North and west facing shores of Niihau, Kauai, Oahu, Molokai, and north facing shores of Maui.