378 

WHHW50 PHFO 211724

SMWHFO

PHZ114>118-120-211815-

/O.NEW.PHFO.MA.W.0056.260321T1724Z-260321T1815Z/



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Special Marine Warning

National Weather Service Honolulu HI

724 AM HST Sat Mar 21 2026



The National Weather Service in Honolulu has issued a



* Special Marine Warning for...

  Kaiwi Channel...

  Maui County Leeward Waters...

  Maui County Windward Waters...

  Oahu Leeward Waters...

  Oahu Windward Waters...

  Pailolo Channel...



* Until 815 AM HST.



* At 722 AM HST, a broad line of thunderstorms extends south of Oahu 

  and across waters around and north of Lanai and Molokai. 

  Individual thunderstorms in this area were moving north to 

  northeast at 20 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...

  Laau Point, Kalaupapa, Cape Halawa, Lahaina Harbor, Shipwreck

  Beach, Mokulua Islands, Ilio Point, and FAD Buoy K.



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.



Frequent lightning is occurring with this storm. If caught on the

open water, stay below deck if possible.



&&



LAT...LON 2189 15720 2188 15688 2150 15590 2095 15651

      2100 15655 2103 15664 2092 15670 2083 15663

      2018 15734 2033 15750 2049 15759 2059 15774

      2065 15819 2127 15782 2129 15770 2126 15770

      2130 15766 2140 15773 2202 15735

TIME...MOT...LOC 1722Z 229DEG 19KT 2101 15691 



HAIL...0.00IN

WIND...>34KTS



$$



Wroe






674 

WGHW50 PHFO 211747

FFWHFO

HIC003-212100-

/O.EXT.PHFO.FF.W.0021.000000T0000Z-260321T2100Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/



BULLETIN - EAS ACTIVATION REQUESTED

Flash Flood Warning

National Weather Service Honolulu HI

747 AM HST Sat Mar 21 2026



The National Weather Service in Honolulu has extended the



* Flash Flood Warning for...

  The island of Oahu in Honolulu County



* Until 1100 AM HST.



* At 747 AM HST, emergency management continued to report road 

  closures across Oahu due to recent flooding. Additional bands of 

  heavy showers and thunderstorms continue to pass over the 

  southeast half of Oahu, with rain rates as high as 1 to 2 inches 

  per hour.





  HAZARD...Flash flooding caused by heavy rain.



  SOURCE...Emergency management.



  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...

  the entire Island of Oahu.



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.



&&



This warning may need to be extended beyond 1100 AM HST if flooding 

persists.



LAT...LON 2125 15769 2125 15772 2127 15773 2124 15782

      2130 15790 2129 15811 2136 15815 2148 15824

      2153 15825 2158 15829 2160 15813 2169 15805

      2173 15798 2155 15783 2147 15783 2143 15779

      2147 15779 2147 15772 2141 15773 2131 15764



FLASH FLOOD...OBSERVED



$$



WROE