Two satellite images encompassing most of Ghana reveal extensive flooding. The view on the left taken on 12 September 2007 shows river systems throughout the length and breadth of the small country swollen compared to conditions in June (right) before the rainy season started. The most flooded rivers are the White Volta and its tributaries. The Oti River, which flows into Lake Volta from the northeast, is also running high. In both images clouds blanket parts of the scene. The clouds are pale blue and white in these false-color images that combine both visible and infrared light. Water is black and dark blue, and plant-covered land is green. Bare earth or lightly vegetated land is tan. Photos courtesy of NASA.