397 

WHHW50 PHFO 210732

SMWHFO

PHZ117-118-120-210930-

/O.NEW.PHFO.MA.W.0052.260321T0732Z-260321T0930Z/



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Special Marine Warning

National Weather Service Honolulu HI

932 PM HST Fri Mar 20 2026



The National Weather Service in Honolulu has issued a



* Special Marine Warning for...

  Maui County Leeward Waters...

  Maui County Windward Waters...

  Pailolo Channel...



* Until 1130 PM HST.



* At 931 PM HST, a strong thunderstorm was located near Kaanapali, 

  moving east at 35 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...

  Kahului Harbor and Lipoa Point.



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 2094 15636 2089 15647 2091 15650 2100 15654

      2104 15660 2099 15668 2095 15670 2086 15668

      2084 15679 2097 15684 2115 15648

TIME...MOT...LOC 0731Z 253DEG 37KT 2093 15674 



HAIL...0.00IN

WIND...>34KTS



$$



Blood






954 

WGHW70 PHFO 210745

FFSHFO



Flash Flood Statement

National Weather Service Honolulu HI

945 PM HST Fri Mar 20 2026



HIC003-211000-

/O.CON.PHFO.FF.W.0019.000000T0000Z-260321T1000Z/

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

Honolulu HI-

945 PM HST Fri Mar 20 2026



...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT HST TONIGHT 

FOR THE ISLAND OF OAHU IN HONOLULU COUNTY...



At 945 PM HST, emergency management reported closed roads on the 

windward side of the island due to earlier flooding. Recent radar 

this past hour depicts the highest rain passing just east southeast 

of Hawaii Kai.



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...

  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...OBSERVED



$$



BLOOD