Agromet Bulletins

Agrometeorological Bulletin No.22, Dekad 1, AUGUST (1 –10) 2015.

The 1st dekad of August, 2015 shows persistent dryness over the southwest as a result of the little dry season with deficit rainfall anomaly and raindays of between 1 to 2 days. The north had normal to surplus rainfall except Sokoto, Ilorin, Lokoja, Makurdi and Yola that recorded deficit. The Inter-Tropical Discontinuity (ITD) was located between latitude 19 and 20oN. The highest rainfall amount for the dekad was recorded over Umuahia with 241.3mm in 8 rain-days, followed by Kano with 237.5mm in 5 rain-days and Bauchi with 196.8mm in 7 rain-days.

Agrometeorological Bulletin No.21, Dekad 3, JULY (21 –31) 2015.

The 3rd dekad of July, 2015 shows signs of the little dry season in the southwest with deficit rainfall anomaly and raindays of between 1 to 2 days. This marks the end of the first season for the bimodal rainfall region. Surplus rainfall was recorded over Abakiliki, Enugu and Awka. The Inter-Tropical Discontinuity (ITD) was located between latitude 17 and 19oN. The highest rainfall amount for the dekad was recorded over Awka with 382mm in 8 rain-days, followed by Eket with 310.2mm in 10 rain-days and Ogoja with 216.8mm in 6 rain-days.

Agrometeorological Bulletin No.20, Dekad 2, JULY (11 –20) 2015.

The rainfall anomaly for the 2nd dekad of July, 2015 shows deficit rainfall over the south and northeast of the country. Surplus rainfall was recorded over Abuja, Yelwa, Bauchi and Ogoja. The Inter-Tropical Discontinuity (ITD) was located between latitude 16.8 and 19oN. The highest rainfall amount for the dekad was recorded over Ogoja with 251.8mm in 10 rain-days, followed by Bauchi with 197.1mm in 7 rain-days and Eket with 177mm in 8 rain-days.

Agrometeorological Bulletin No.16, Dekad 1, JUNE (1 –10) 2015.

The 1st dekad of June shows the establishment of rainfall in most parts of the country except the extreme northern states of Sokoto, Katsina, Kano, Jigawa, Yobe and Borno states. Deficit rainfall anomaly was recorded over Makurdi, Lafia, Jos and Kano. The relative position of the Inter-Tropical Discontinuity (ITD) was between between latitude 13.5 and 14oN.

Agrometeorological Bulletin No.15, Dekad 3, MAY (21 –31) 2015.

The 3rd dekad of May shows that Onset of rainfall is still being delayed in the north, while the central states is just experiencing its onset due to the effect of the strong El-Niño on the country. Deficit rainfall anomaly still persist over the north and parts of the central states. The dekad shows that the Inter-Tropical Discontinuity (ITD) oscillates between latitude 14.50N to 15.5 0N, deficit Soil moisture condition continue to persist over the north.

Agrometeorological Bulletin No.14, Dekad 2, MAY (11 –20) 2015.

The 2nd dekad of May shows the strong effect of this year’s El-Niño on the country, with the deficit rainfall anomaly recorded by most stations in the country. The dekad shows that the Inter-Tropical Discontinuity (ITD) continue to oscillate between latitude 12.50N to 14.5 0N, a deficit Soil moisture condition over the country except the southern part which had surplus soil moisture conditions.

Agrometeorological Bulletin No.13, Dekad 1, May (1 –10) 2015.

1st dekad of May indicated that rainfall has spread up to some northern stations in the country like Sokoto and Gombe. Most parts of the country had deficit rainfall anomalies except the extreme northern part and parts of the South which had normal to surplus rainfall anomalies. ITD continue to oscillate between latitude 11.50N to 12.5 0N. Soil moisture condition in the country was deficit except parts of central and southern states which had neutral to surplus soil moisture conditions.

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