NW Reinforcement Fills in Soon
Alerts (as of 1:00 a.m.)
Flash Flood Watch: Posted from Monday morning through Tuesday afternoon. Heavy showers associated with an upper trough and cold front moving down the island chain could result in flash flooding Monday through Tuesday. The latest guidance indicates the greatest potential for flooding will occur over Oahu, Maui County and Big Island.
**Click directly on the images below to make them larger. Charts include: Big Island projected winds, tides, swell direction & period and expected wave heights.**
Big Island Surf Forecast
Hilo side: Surf heights are expected to be around double overhead today.
Kona side: Surf heights are expected to be around double overhead for the breaks catching the northwest. Breaks catching the southwest swell are forecast to get up to waist/shoulder high.
South: Surf heights are expected to be up to waist/shoulder high.
A northwest reinforcement is expected to fill in Wednesday with a larger northwest forecast for Friday.
A fun south-southwest is expected to keep waves waist/chest/shoulder high through the middle of the week before slowly fading Thursday and into the weekend.
Keep in mind, surf heights are measured on the face of the wave from trough to crest. Heights vary from beach to beach, and at the same beach, from break to break.