The season A rains start in October/November and continue through January affecting the harvest in February. Back to top | West Africa | East Africa | Southern Africa | Subsaharan Africa ITCZ | Cocoa Rwanda's Season B Rains Defined Rainfall in Rwanda is bimodal, that is, there are two rainy seasons.he season A rains start in October/November and continue through January affecting the harvest in February. Back to top | West Africa | East Africa | Southern Africa | Subsaharan Africa ITCZ | Cocoa Rwanda's Season B Rains Defined Rainfall in Rwanda is bimodal, that is, there are two rainy seasons.
King tides occur when the orbits and alignment of the Earth, moon, and sun combine to produce the greatest tidal effects of the year. See a story map from NOAA's Office for Coastal Management and The King Tides Project to learn about sea level rise and tidal flooding. King tides flood Manasquan, New Jersey, 2013.
In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth. Read more about What Causes Tides?. Gravity, Inertia, and the Two Bulges - Gravity is only one of the major forces responsible for creating tides. Another is inertia, which is the force that acts to counterbalance gravity. It is the tendency of moving objects to continue moving in a straight line.