863 WGHW50 PHFO 210347 FFWHFO HIC003-210700- /O.EXT.PHFO.FF.W.0019.000000T0000Z-260321T0700Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Honolulu HI 547 PM HST Fri Mar 20 2026 The National Weather Service in Honolulu has extended the * Flash Flood Warning for... The island of Oahu in Honolulu County * Until 900 PM HST. * At 547 PM HST, radar indicated moderate rain over parts of leeward and east Oahu. Rain was falling at a rate of 0.25 to 0.75 inches per hour. Although rain rates are modest due to the recent rainfall, severe ponding of water will be possible over select areas. Additional bands of moderate to locally heavy showers will be possible through this evening. 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. Excessive runoff from heavy rainfall will cause flooding of drainage ditches and streams, streets, highways, properties, and other low lying spots. && This warning may need to be extended beyond 900 PM HST if flooding persists. 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 $$ KINO  172 WHUS51 KLWX 210349 SMWLWX ANZ532-533-540-541-210545- /O.NEW.KLWX.MA.W.0020.260321T0349Z-260321T0545Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 1149 PM EDT Fri Mar 20 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Chesapeake Bay from North Beach to Drum Point MD... Chesapeake Bay from Sandy Point to North Beach MD... Choptank River to Cambridge MD and the Little Choptank River... Eastern Bay... * Until 145 AM EDT. * At 1149 PM EDT, a strong thunderstorm was located 9 nm northeast of Tidal Basin, moving southeast at 35 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Choptank River, Knapps Narrows Bridge, Tilghman Island, Blackwalnut Point, Dares Beach, Bloody Point Light, Matapeake, Chesapeake Bay Bridge, Flag Harbor, James Island, Thomas Point Light, Calvert Cliffs, Poplar Island, Shady Side, Taylors Island, and Deale. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 3861 7628 3853 7628 3853 7622 3850 7633 3840 7628 3834 7637 3850 7652 3884 7652 3901 7639 3899 7632 3884 7637 3885 7636 3886 7633 3894 7628 3867 7634 3872 7632 3875 7632 3877 7631 3876 7623 3859 7605 TIME...MOT...LOC 0349Z 305DEG 37KT 3896 7685 HAIL...<.75IN WIND...>34KTS $$ DHOF  302 WHUS51 KLWX 210350 SMWLWX ANZ535-210545- /O.NEW.KLWX.MA.W.0021.260321T0350Z-260321T0545Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Baltimore MD/Washington DC 1150 PM EDT Fri Mar 20 2026 The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for... Tidal Potomac from Key Bridge to Indian Head MD... * Until 145 AM EDT. * At 1150 PM EDT, a gust front was located over Key Bridge, moving southeast at 35 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include... Fort Washington, Tidal Basin, Reagan National Airport, Gunston Hall, Woodrow Wilson Bridge, Key Bridge, Fort Hunt, National Harbor, and Alexandria. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 3873 7706 3890 7708 3891 7705 3885 7700 3870 7700 3867 7708 3865 7709 3866 7711 3864 7711 3865 7714 3866 7715 3867 7718 3870 7721 TIME...MOT...LOC 0350Z 310DEG 34KT 3893 7704 HAIL...0.00IN WIND...>34KTS $$ DHOF