Rainfall, Temperature Forecast 19-26 September

Wetter than usual rainfall is expected in northern Somalia and central to western Ethiopia; warmer than usual temperatures are predicted to occur across the Greater Horn of Africa.

Total rainfall 

  • Heavy rainfall (above 200mm) is expected over a few places in southwestern Ethiopia.
  • Moderate rainfall (50-200mm) is expected over southern Sudan, western and northern South Sudan, parts of southern Uganda, and northern Somalia.
  • Light rainfall (less than 50 mm) is expected in central Sudan, Eritrea, Djibouti, central to southern Somalia, southern and north-eastern Ethiopia, parts of eastern and western Kenya, central Uganda, and Rwanda.
  • Dry conditions expected over central to northern Sudan, central to western and southern Tanzania and parts of eastern and northern Kenya.

Note: 1 mm of rainfall is equivalent to 1 litre of water per square meter.  

Rainfall Anomalies 

  • Wetter than usual conditions expected over southern Sudan, western and northern Ethiopia, northern and southern Somalia, southern Uganda and most parts of Rwanda.
  • Drier than usual conditions expected over parts of central to northern Somalia, most parts of South Sudan and parts of central Uganda and western Kenya.

Exceptional rainfall

  • Heavy to very heavy rain is expected in northern Somalia and central regions of Ethiopia.

Flood Updates

Mean Temperature

  • Hot temperatures (above 32 ℃) expected over central to northern Sudan, coastal regions of Eritrea, Afar region of Ethiopia, parts of Djibouti and north-western coastal regions of Somalia.
  • Moderate to high temperatures (20-32℃) expected over southern parts of Sudan, South Sudan, southern Ethiopia, Eritrea, Djibouti, Somalia, northern and eastern Kenya, and western and south-eastern Tanzania.
  • Mild temperature conditions (less than 20℃) expected over central to southern Ethiopia, western Kenya, central parts of Tanzania and a few regions over south-western Uganda and western Rwanda.

Temperature anomalies

  • Warmer than usual temperatures predicted over most parts of the Greater Horn of Africa (GHA).

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