835 WGHW70 PHFO 212313 FFSHFO Flash Flood Statement National Weather Service Honolulu HI 113 PM HST Sat Mar 21 2026 HIC003-212323- /O.EXP.PHFO.FF.W.0018.000000T0000Z-260321T2315Z/ /00000.U.DM.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Honolulu HI- 113 PM HST Sat Mar 21 2026 ...FLASH FLOOD WARNING FOR THE FAILURE OF WAHIAWA DAM ON THE KAUKONAHUA STREAM WILL EXPIRE AT 115 PM HST THIS AFTERNOON FOR THE ISLAND OF OAHU IN HONOLULU COUNTY... Water levels have lowered in the Wahiawa Reservoir. A Flood Watch remains in effect until 600 PM HST Sunday for all islands. && LAT...LON 2159 15812 2160 15811 2161 15810 2151 15804 2149 15805 2158 15814 2159 15813 $$ TS  677 WGHW70 PHFO 212333 FFSHFO Flash Flood Statement National Weather Service Honolulu HI 133 PM HST Sat Mar 21 2026 HIC009-220100- /O.CON.PHFO.FF.W.0024.000000T0000Z-260322T0100Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Maui HI- 133 PM HST Sat Mar 21 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 PM HST THIS AFTERNOON FOR THE ISLAND OF MAUI IN MAUI COUNTY... At 133 PM HST, radar indicated heavy showers and thunderstorms continuing to move over West Maui from the southwest, with rain falling at rates of 1 to 3 inches per hour. Emergency management reported road closures in Lahaina and near Kahakuloa. Streams may rise rapidly across West Maui, including in areas not experiencing heavy rain, and heavy rain is expected to spread to additional areas of Maui through the afternoon. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar. IMPACT...Flooding in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures possible in some areas. Landslides are possible in steep terrain. Some locations that will experience flash flooding include... Kahului, Kihei, Lahaina, Waikapu, Maalaea, Wailuku, Puunene, Waiehu, Waihee, Paia, Haliimaile, Olowalu, Pukalani, Makawao, Kahakuloa, Wailea, Kula, Keokea, Pauwela and Haiku-Pauwela. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. && LAT...LON 2063 15647 2078 15648 2078 15650 2076 15654 2080 15663 2088 15670 2093 15671 2102 15667 2105 15661 2105 15659 2100 15651 2091 15647 2096 15634 2093 15626 2074 15632 2058 15642 FLASH FLOOD...RADAR INDICATED $$ WROE  675 FZUS71 KLWX 212337 MWSLWX Marine Weather Statement National Weather Service Baltimore MD/Washington DC 737 PM EDT Sat Mar 21 2026 ANZ536-537-220300- Tidal Potomac from Indian Head to Cobb Island MD- Tidal Potomac from Cobb Island MD to Smith Point VA- 737 PM EDT Sat Mar 21 2026 ...OCCASIONAL SOUTHEAST WIND GUSTS OF 15 TO 25 KNOTS... * WHAT...Southeast winds around 10 kt with occasional gusts up to 25 kt. * WHERE...Tidal Potomac from Indian Head MD to Smith Point VA. * WHEN...Until 11 PM EDT. * IMPACTS...Conditions may be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should exercise extra caution if navigating the waters during this time. $$ DHOF  063 WGHW70 PHFO 212356 FFSHFO Flash Flood Statement National Weather Service Honolulu HI 156 PM HST Sat Mar 21 2026 HIC009-220145- /O.CON.PHFO.FF.W.0022.000000T0000Z-260322T0145Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Maui HI- 156 PM HST Sat Mar 21 2026 ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 345 PM HST THIS AFTERNOON FOR THE ISLAND OF MOLOKAI IN MAUI COUNTY... At 156 PM HST, radar indicated that heavy showers have diminished, with rain rates of 0.5 to 1 inch per hour lingering over southeast Molokai. Emergency management reported the closure of Kamehameha V Highway near mile marker 7 due to flooding, and water levels at the gage in Kawela Gulch remain high. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar. IMPACT...Flooding in drainages, streams, rivers, roads, properties, and other low-lying areas. Public road closures possible in some areas. Landslides are possible in steep terrain. Some locations that will experience flash flooding include... Pukoo, Ualapue, Kamalo, Halawa Valley, Kawela and Kalaupapa National Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... Stay away from streams, rivers, drainage ditches, and culverts, even if they are currently dry. && LAT...LON 2114 15689 2119 15677 2117 15671 2117 15670 2116 15670 2115 15670 2109 15676 2104 15684 2104 15689 2105 15689 2106 15697 2112 15694 FLASH FLOOD...RADAR INDICATED $$ WROE  222 FZHW70 PHFO 212357 MWSHFO Marine Weather Statement National Weather Service Honolulu HI 157 PM HST Sat Mar 21 2026 PHZ117>121-220006- /O.EXP.PHFO.MA.W.0060.000000T0000Z-260322T0000Z/ 157 PM HST Sat Mar 21 2026 ...THE SPECIAL MARINE WARNING WILL EXPIRE AT 200 PM HST... The affected areas were... Alenuihaha Channel... Maalaea Bay... Maui County Leeward Waters... Maui County Windward Waters... Pailolo Channel... The thunderstorms have weakened and no longer pose a significant threat to boaters. && LAT...LON 2110 15586 2089 15619 2095 15629 2090 15648 2100 15655 2103 15664 2095 15670 2086 15668 2078 15655 2080 15649 2071 15645 2015 15729 2033 15750 2051 15761 2110 15708 2105 15685 2116 15671 2120 15699 2157 15666 TIME...MOT...LOC 2356Z 224DEG 29KT 2126 15659 2092 15684 $$ Vaughan