Biggest tide of the year
A SEVERE weather warning for abnormally high tides has been issued by the Bureau of Meteorology for the Northern Rivers.
A BOM spokesman said abnormally high tides were likely to exceed the highest tide of the year in exposed coastal areas between Port Hacking and Point Danger.
The high tides are caused by a high pressure system which lies to the west of New Zealand, extending a ridge to northern New South Wales.
A trough also lies in the easterlies over the southern Coral Sea.
Abnormally high tides which may cause sea water flooding of low lying areas and beach erosion are forecast for exposed coastal areas of the Metropolitan, Northern Rivers, Mid North Coast and Hunter forecast districts.
These conditions will occur on the mid-morning high tide for the next few days, peaking on Saturday.