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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 October 21-31, the ITF continued its rapid retreat equatorward. The ITF was located anomalously south of the long-term average position along its entire length. This abnormal position led to below-average rainfall across much of the sudanian-guinean region of West Africa; but brought persistent above-average rainfall over parts of northeastern South Sudan. The mean western portion of the ITF was approximated at 10.3 degrees N and was to the south of the mean position by 2.6 degrees. The mean eastern portion of the ITF was located at 9.7 degrees N, which was to the south of the climatological position by 1.7 degrees. Figure 1 displays the current position of the ITF relative to the long-term average position during the 3rd dekad of October and its previous position during the 2nd dekad of October. 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 April, 2020.

Dekad 15W 10W 5W 0 5E 10E 15E 20E 25E 30E 35E
April 1 11.3 11.4 11.5 11.8 12.1 11.5 10.1 10.0 9.6 9.6 9.1
April 2 11.6 11.9 12.5 12.2 11.4 9.8 9.6 9.4 9.2 9.0 8.7
April 3 10.7 11.8 12.3 12.5 12.8 11.7 10.9 10.4 10.0 8.9 9.8
May 1 12.9 12.8 13.2 13.3 13.1 12.1 11.7 11.2 10.9 10.4 11.7
May 2 12.4 12.6 13.2 13.4 14.1 13.2 12.3 11.9 11.3 11.2 11.3
May 3 13.0 13.0 13.5 13.4 13.6 13.8 13.5 13.1 12.9 12.3 12.4
June 1 13.1 14.2 13.8 13.7 14.1 14.0 13.6 12.6 11.9 11.7 12.3
June 2 15.4 16.2 16.4 15.9 15.3 14.8 14.4 14.0 12.6 14.0 15.3
June 3 14.0 15.4 16.4 16.9 17.2 15.7 15.6 15.3 14.6 15.0 16.4
July 1 16.0 16.8 16.9 17.7 17.8 17.2 16.9 17.0 16.0 16.3 16.5
July 2 17.3 18.6 19.0 18.7 18.7 18.0 18.1 17.7 16.6 16.6 17.3
July 3 18.0 18.5 19.1 20.1 19.5 18.8 18.2 17.7 15.8 16.8 19.8
August 1 17.3 19.2 20.2 22.2 22.9 20.8 20.3 20.0 19.7 21.0 22.5
August 2 17.7 19.5 19.9 20.7 20.1 18.3 17.4 17.3 17.8 17.7 18.2
August 3 18.7 19.4 19.7 20.0 20.6 20.5 21.0 20.7 19.2 18.3 18.2
September 1 18.2 18.8 19.2 18.1 18.2 18.6 18.1 17.2 16.4 17.3 18.1
September 2 17.6 17.3 17.0 17.0 16.7 15.5 15.2 14.8 15.1 15.7 18.0
September 3 15.3 15.7 15.8 16.3 16.2 15.4 15.0 14.4 13.2 14.9 16.4
October 1 15.4 15.9 16.0 17.3 16.6 15.4 15.8 15.1 13.6 13.6 14.4
October 2 15.2 14.3 13.4 14.3 13.7 12.1 11.6 11.8 11.6 12.1 12.9
October 3 10.8 11.0 10.5 10.1 10.3 9.6 9.5 9.8 8.7 9.7 10.5


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Page last modified: February 22, 2006
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