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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: nicholas.novella@noaa.gov or 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 September 1-10, the ITF continued its equatorward retreat, while still maintaining an above-average positive relative to climatology in both the east and the west during this time of the year. The mean western (10W - 10E) portion of the ITF was located at 19.3N, which remains anomalously north of the mean position by 0.8 degree. Consequently, above-average rainfall was again observed throughout much of the Sahel during the period. The mean eastern (20E - 35E) portion of the ITF was approximated at 16.8N, which also was located to the north of the climatological position by 0.7 degree. Anomalously wet conditions and heavy rains have persisted over Sudan throughout much of the monsoon season. Figure 1 shows the current position of the ITF compared to the climatological (black) position during the 1st dekad of September and its previous (yellow) position during the 3rd dekad of August. Figures 2 and 3 are time series, illustrating the mean latitudinal values of the western and eastern portion of the ITF, respectively, and their seasonal evolutions since April, 2018.

Dekad 15W 10W 5W 0 5E 10E 15E 20E 25E 30E 35E
April 1 12.0 12.4 12.4 12.3 11.3 9.6 9.7 9.4 9.0 9.2 9.0
April 2 10.9 10.5 11.2 12.1 12.0 11.5 10.1 9.7 8.6 8.7 8.7
April 3 11.6 11.5 12.8 12.8 13.4 11.9 11.1 10.1 9.4 9.7 10.5
May 1 8.2 10.9 12.2 13.0 13.6 13.7 13.6 12.1 11.4 12.4 14.2
May 2 11.2 13.2 14.0 14.8 15.3 14.0 12.7 11.4 11.0 11.7 12.2
May 3 12.5 13.9 15.7 16.5 15.6 14.5 14.2 14.1 13.5 14.4 16.3
June 1 15.0 15.2 15.7 16.3 16.1 14.4 13.5 13.5 12.6 12.6 14.3
June 2 15.3 15.2 15.9 16.9 17.0 16.5 16.6 16.6 15.1 15.5 16.7
June 3 16.6 17.3 18.2 18.9 18.3 18.1 18.3 17.3 15.4 15.9 18.0
July 1 18.0 19.3 20.4 20.0 18.0 17.5 17.7 16.5 15.5 16.0 17.4
July 2 17.3 19.0 19.4 19.3 17.9 18.0 18.2 17.0 15.3 16.0 17.6
July 3 19.7 21.2 20.9 21.1 19.7 19.3 18.9 17.8 17.8 19.0 20.6
August 1 18.2 20.6 21.4 21.9 20.6 21.3 20.6 20.8 18.9 18.4 19.9
August 2 18.2 20.7 21.8 21.7 19.8 19.6 19.2 19.4 17.5 18.3 19.6
August 3 19.6 20.7 20.9 21.0 19.5 18.8 18.5 18.5 16.5 16.5 18.1
September 1 18.5 20.6 20.7 19.9 18.0 17.3 17.0 16.5 15.4 16.6 18.6


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Page last modified: February 22, 2006
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