The Blomidon Naturalists are forecasting high tides for the next few days while the moon is at perigee. The high tide today should reach 15 metres at 11:46 a.m.
That’s because the elliptical shape of the moon’s orbit brings it nine to 14 per cent closer at its close point to Earth at its closest point or perigee than at its far point apogee.
The result, according to Dr. Roy Bishop, is that the Moon's tidal influence is 30 to 48 per cent greater at perigee than at apogee or its farthest point. In the Bay of Fundy, this translates to a three to six metre increase in the vertical tidal range.
Tomorrow’s high tide is forecast to reach 15.8 metres at 12:40 p.m., while on Sunday it will push 16.1 metres at 1:31 p.m.
As 14 billion tons (14 cubic kilometres) of sea water flow into Minas Basin twice daily, the Nova Scotia countryside actually tilts slightly under the immense load.
Near mid-tide at Cape Split, one may hear the ‘voice of the Moon’ in the form of the roar emitted by turbulent tidal currents.
At mid-tide, the flow in Minas Channel north of Blomidon equals the combined flow of all the rivers and streams on Earth.