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