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.
Cause and Effect of Tides Causes: Tides are caused mainly by the gravitational pull of the Moon on the waters of the ocean.The Moon revolves around the Earth in the exact same direction as the Earth rotates on its axis, but they travel at different speeds.hen there is a full moon or a new moon it causes the Earth to have the best low and high tides. Depending on the relative position of the Moon and the Sun to the Earth it causes different types of tides. A Spring Tide is caused when the Earth, Sun and Moon are lined up.