Active Weather Alerts
Flood Advisory
Issued: 6:06 AM Feb. 21, 2026 – National Weather Service
...FLOOD ADVISORY NOW IN EFFECT UNTIL 11 PM HST THIS EVENING FOR THE ISLAND OF OAHU IN HONOLULU COUNTY... * WHAT...Flooding caused by excessive rainfall continues. * WHERE...The island of Oahu in Honolulu County. * WHEN...Until 1100 PM HST. * IMPACTS...Minor flooding on roads, poor drainage areas, and in streams. * ADDITIONAL DETAILS... - At 805 PM HST, radar indicated heavy rain continues to fall along a convergence boundary anchored over the Koolau Mountains with periods of heavy rain spilling into central Oahu this evening. Rain along this band was falling at a rate of 0.5 to 1.5 inches per hour. - Some locations that will experience flooding include... Honolulu, Waipio, Waiahole, Waikane, Kahaluu, Pearl City, Aiea, Ahuimanu, Halawa, Mililani, Moanalua, Salt Lake, Kaaawa, Waikele, Wahiawa, Waipahu, Kalihi, Wheeler Field, Punaluu and Kaneohe. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, drainage ditches and low lying areas prone to flooding. && This advisory may need to be extended beyond 1100 PM HST if flooding; persists.
Flood Watch
Issued: 4:02 AM Feb. 21, 2026 – National Weather Service
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Oahu. * WHEN...Through late tonight. * IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff. * ADDITIONAL DETAILS... - An upper level trough swinging through the northwestern islands tonight will produce periods of heavy showers and isolated thunderstorms. The trough axis should lift north of the area by mid day Saturday, which should diminish the flooding threat. A low level convergence plume will continue to enhance showers this evening over the island of Oahu. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&
Small Craft Advisory
Issued: 1:00 AM Feb. 21, 2026 – National Weather Service
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM HST SATURDAY... * WHAT...East winds to 30 kt. Seas to 10 feet. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Channel, Oahu Windward Waters, Kaiwi Channel, Maui County Windward Waters, Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Windward Waters, Big Island Leeward Waters and Big Island Southeast Waters. * WHEN...Until 6 AM HST Saturday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in these conditions. &&
High Surf Advisory
Issued: 1:00 AM Feb. 21, 2026 – National Weather Service
...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 AM HST SATURDAY... * WHAT...Surf of 7 to 10 feet. * WHERE...East facing shores of Kauai, Maui, Molokai, Oahu and the Big Island. * WHEN...Until 6 AM HST Saturday. * IMPACTS...Moderate. Strong breaking waves and strong currents will make swimming dangerous. PRECAUTIONARY/PREPAREDNESS ACTIONS... Heed all advice from ocean safety officials. When in doubt, don't go out. &&
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