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HOME > FEWS-NET > Africa > Africa ITCZ Monitoring

Africa Intertropical Front

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


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

Mean vs Current Mean ITCZ


West Region East Region
West
ITCZ East
ITCZ

Latest Text Summary



From October 11-20, 2014, the ITF advanced farther south across Africa, particularly the central portions of West Africa, while maintaining near stationary position over Eastern Africa. This asymmetrical movement resulted in more reduced rains, with below-average rainfall over parts of the Sahel unlike sustained enhanced rains, with above-average rainfall over south-central and eastern Sudan. The western (10W-10E) portion of the ITF approximated 14.1N, which was to the south of the average position during this time of the year by 0.4 degree. This anomalous southerly position was associated with weaker southerly flow across the Gulf of Guinea region. Meanwhile, the eastern (20E-35E) portion of the ITF positioned itself near 14.4N and was located to the north of the climatology by 1.5 degrees. This anomalous northerly position was partially caused by strong southeasterlies during the period. Figure 1 shows the current ITF position relative to the long-term average position for the second dekad of October and its previous position during the first dekad of October. Figures 2 and 3 are time series illustrating the mean latitudinal values of the western and eastern portions of the ITF, respectively, and their evolutions since April, 2014.

Dekad 15W 10W 5W 0 5E 10E 15E 20E 25E 30E 35E
April 1 10.7 11.1 12.3 12.7 12.3 10.9 9.5 11.9 10.9 11.5 10.7
April 2 12.2 11.8 12.7 14.2 14.1 13.1 13.1 12.6 11.7 12.3 12.5
April 3 10.2 12.0 13.7 14.7 15.7 14.1 13.9 13.5 12.4 12.3 13.6
May 1 12.7 13.7 15.5 16.5 17.2 15.0 14.8 13.4 12.3 12.4 13.3
May 2 14.1 16.2 16.6 16.1 14.8 11.7 12.0 11.8 10.0 11.0 13.0
May 3 14.3 14.5 15.4 15.3 15.5 13.8 14.0 13.8 13.1 14.1 14.8
June 1 14.6 15.4 15.9 16.3 17.2 15.3 14.8 14.0 13.1 13.6 14.1
June 2 15.0 16.1 17.0 17.7 17.8 15.0 14.0 13.6 12.6 13.2 14.7
June 3 16.1 16.2 17.6 18.3 17.1 15.2 14.3 14.8 14.4 14.6 15.5
July 1 17.8 18.4 19.6 20.2 18.2 16.7 16.9 16.1 15.2 15.4 16.5
July 2 17.8 18.2 19.2 20.7 19.4 17.7 17.5 16.2 15.5 15.9 18.0
July 3 17.8 18.1 19.7 20.8 19.2 18.6 18.2 16.7 15.9 17.5 19.8
August 1 18.2 18.7 20.2 21.3 20.5 20.3 20.2 18.4 17.4 18.8 19.4
August 2 19.6 20.2 21.1 22.3 21.1 20.0 18.8 17.9 17.3 17.1 17.5
August 3 18.5 19.4 19.5 20.1 19.4 18.4 17.5 17.1 15.4 15.5 17.5
September 1 18.6 18.6 19.9 20.4 19.7 19.1 17.6 17.1 15.1 16.0 17.8
September 2 19.0 18.9 19.7 19.4 17.9 16.0 16.0 15.8 14.8 14.2 14.9
September 3 16.6 17.1 17.8 17.8 17.3 14.8 14.5 14.6 13.7 13.6 14.1
October 1 16.3 16.9 17.5 16.4 16.1 15.3 13.9 14.0 13.6 13.9 16.6
October 2 16.1 16.9 15.2 14.0 12.9 11.5 13.0 13.1 13.0 15.0 16.5


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Page last modified: February 22, 2006
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