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.
A tide is the periodic rising and falling of Earth's ocean surface caused mainly by the gravitational pull of the Moon acting on the oceans. Tides cause changes in the depth of marine and estuarine (river mouth) waters. Tides also make oscillating currents known as tidal streams (~'rip tides'). This means that being able to predict the tide is important for coastal navigation.