The National Weather Service in Honolulu has issued a marine weather statement that a north-northeast swell is peaking Sunday night and Monday morning.
This swell will produce surges in north facing harbors, including Hilo and Kahului harbors.
Observers have already reported water in the adjacent roads to Hilo Bay.
High tide will be around 6 a.m. Monday and this will be the most susceptible time for harbor surges.
Mariners using these harbors should also exercise caution when entering or leaving port and then mooring or launching vessels.
It may take you a little longer to get around this weekend. There will be lane and road closures all over Oahu because of parades and the Honolulu Marathon.
The city has received more reports of stray bullets from the Koko Head rifle range. So the city is closing the range while it figures out how to make it safer.
A $65,000 piece of equipment ripped off from the city is making officials think twice about where to store its property.