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HOME > FEWS-NET > Africa > Africa ITCZ Monitoring

Africa InterTropical Front (ITF)

For historical ITF dekadal data and analyses, or for any issues with this product
Please contact: wassila.thiaw@noaa.gov


For the latest ITF .pdf file, --> Click Here



Mean vs Current Mean ITCZ


West Region East Region
West
ITCZ East
ITCZ

Latest Text Summary



From 01-10 of June, the ITF has moved further north compared to the previous dekad, however this position is located southward to the normal position. The western (10W-10E) portion of the ITF was located approximately at 14.2N, whereas the average position was centered at 15.9N. This position of the ITF explains the slow rainy season onset across the far West Africa countries and the abnormal dryness installed across the Gulf of Guinea countries.The eastern (20E-35E) portion of the ITF was located at 12.8N, which was south to the climatological position centered at 13.6N. This position could explain the increase of rainfall across southern Chad and southern Sudan compared to the previous dekad. Figure 1 shows the current position of the ITF relative to the long-term average position during the 1st dekad of June and its previous position during the 3rd dekad of May. Figures 2 and 3 are time series, illustrating the latitudinal values of the western and eastern portions of the ITF, respectively, and their seasonal evolutions since the beginning of April, 2021.

Dekad 15W 10W 5W 0 5E 10E 15E 20E 25E 30E 35E
April 1 11.5 10.6 9.8 9.5 8.7 7.8 6.8 7.3 6.8 6.8 6.8
April 2 11.5 11.6 11.9 11.9 11.1 10.0 9.2 8.6 8.0 7.9 7.8
April 3 11.4 11.9 13.4 12.8 12.7 10.8 10.4 10.2 10.7 11.3 13.4
May 1 10.9 12.7 13.6 13.9 12.9 12.3 12.3 12.2 12.8 12.9 14.5
May 2 12.8 13.0 14.1 14.2 14.1 12.6 13.0 12.0 12.1 12.9 13.4
May 3 12.4 13.1 14.5 14.1 14.0 11.7 11.7 11.5 11.7 11.7 11.6
June 1 14.7 14.6 15.2 14.9 14.9 13.2 13.9 13.3 13.2 13.1 13.0


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