WEEKLY AFRICAN WEATHER HAZARDS ASSESSMENT May 23, 2002 DISCUSSION: 1) During the past week, moderate to heavy rains fell along coastal areas of eastern Kenya and southern Somalia, with weekly totals exceeding 150 mm locally. This has helped to ease dryness in northeastern parts of the Hazard region, although little to no rainfall was recorded further inland. This trend is expected to continue during at least the next week, as onshore winds should enhance precipitation along the coast, but not further westward. The storms that brought significant rains last week should not be as intense from May 23-29, but local accumulated precipitation totals may be at or above 100 mm along the coast, east of the dry area. 2) Hydrological drought conditions remain throughout much of southern Mozambique, northeastern South Africa, southern Zimbabwe, and east-central Botswana due to poor rains during their normal monsoonal period. Little change is expected during the next months as high pressure should dominate the area and prevent helpful rainfall. 3) Moderate to heavy rains are again expected anywhere from southeastern Nigeria to northern Congo during the next week. Widespread rainfall totals exceeding 50 mm for the week are likely, with local totals exceeding 100 mm. The rains should gradually move northward during the next few weeks, as the Intertropical Convergence Zone progresses away from the equator. 4) Rainfall has moderated throughout parts of southwestern Kenya, northern Tanzania, Rwanda, and Burundi during the past two weeks, but moderate to heavy rainfall may occur near the central/southern Uganda-Kenya border during the next 5-7 days. Due to already saturated soil conditions, the possibility remains for local areas of flooding and a few landslides on steeper terrain during the heaviest thunderstorms. Author: Timothy B Love