142 WGHW70 PHFO 211323 FFSHFO Flash Flood Statement National Weather Service Honolulu HI 323 AM HST Sat Mar 21 2026 HIC003-211600- /O.CON.PHFO.FF.W.0019.000000T0000Z-260321T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Honolulu HI- 323 AM HST Sat Mar 21 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 AM HST EARLY THIS MORNING FOR THE ISLAND OF OAHU IN HONOLULU COUNTY... At 323 AM HST, radar indicated heavy rain over southwest Oahu. Rain was falling at a rate of 1 to 3 inches per hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar. 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... Honolulu, Waipio, Moanalua, Halawa, Salt Lake, Aiea, Kalihi, Pearl City, Ahuimanu, Iroquois Point, Manoa, Kahaluu, Kaneohe, Waiahole, Waipahu, Waikele, Palolo, Maunawili, Waikane and Ewa Beach. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. Do not cross fast flowing or rising water in your vehicle, or on foot. Turn around, don't drown. Be especially cautious at night when it is harder to recognize the dangers of flooding. Excessive runoff from heavy rainfall will cause flooding of drainage ditches and streams, streets, highways, properties, and other low lying spots. && LAT...LON 2147 15783 2143 15779 2144 15778 2147 15779 2147 15772 2146 15771 2141 15773 2134 15769 2131 15764 2126 15769 2125 15772 2127 15773 2125 15783 2129 15787 2130 15790 2129 15796 2131 15797 2129 15811 2140 15818 2150 15783 FLASH FLOOD...RADAR INDICATED $$ Blood  166 WHHW50 PHFO 211342 SMWHFO PHZ113>118-211545- /O.NEW.PHFO.MA.W.0053.260321T1342Z-260321T1545Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Honolulu HI 342 AM HST Sat Mar 21 2026 The National Weather Service in Honolulu has issued a * Special Marine Warning for... Kaiwi Channel... Kauai Channel... Maui County Leeward Waters... Maui County Windward Waters... Oahu Leeward Waters... Oahu Windward Waters... * Until 545 AM HST. * At 342 AM HST, a severe thunderstorm capable of producing waterspouts was located 8 nm southwest of Ala Wai Harbor, or 8 nm southwest of Waikiki, moving northeast at 40 knots. HAZARD...Waterspouts, wind gusts in excess of 50 knots, and small hail. SOURCE...Radar. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Locations impacted include... Mokulua Islands, Ilio Point, Heeia Kea Boat Harbor, FAD Buoy J, FAD Buoy CO, FAD Buoy II, FAD Buoy MM, and Pearl Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare for gusty winds, steep and fast-building seas, and blinding downpours. Stay low or go below, and make sure all on board are wearing life jackets. && LAT...LON 2230 15765 2189 15720 2188 15685 2181 15657 2120 15719 2121 15725 2109 15730 2058 15781 2063 15819 2072 15844 2093 15867 2142 15893 2133 15906 2216 15861 2239 15804 TIME...MOT...LOC 1342Z 240DEG 41KT 2117 15792 WATERSPOUT...POSSIBLE HAIL...<.75IN WIND...50KTS $$ Bohlin  281 WGHW70 PHFO 211352 FFSHFO Flash Flood Statement National Weather Service Honolulu HI 352 AM HST Sat Mar 21 2026 HIC003-211600- /O.CON.PHFO.FF.W.0019.000000T0000Z-260321T1600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Honolulu HI- 352 AM HST Sat Mar 21 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 AM HST EARLY THIS MORNING FOR THE ISLAND OF OAHU IN HONOLULU COUNTY... At 352 AM HST, radar indicated heavy rain near Punaluu. Rain was falling at a rate of 1 to 2.5 inches per hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar. 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... Honolulu, Waipio, Moanalua, Halawa, Salt Lake, Aiea, Kalihi, Pearl City, Ahuimanu, Iroquois Point, Manoa, Kahaluu, Kaneohe, Waiahole, Waipahu, Waikele, Palolo, Maunawili, Waikane and Ewa Beach. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. Do not cross fast flowing or rising water in your vehicle, or on foot. Turn around, don't drown. Be especially cautious at night when it is harder to recognize the dangers of flooding. Excessive runoff from heavy rainfall will cause flooding of drainage ditches and streams, streets, highways, properties, and other low lying spots. && LAT...LON 2147 15783 2143 15779 2144 15778 2147 15779 2147 15772 2146 15771 2141 15773 2134 15769 2131 15764 2126 15769 2125 15772 2127 15773 2125 15783 2129 15787 2130 15790 2129 15796 2131 15797 2129 15811 2140 15818 2150 15783 FLASH FLOOD...RADAR INDICATED $$ Blood