7. Onne 82.2 475.0 233.8 Table 1: Rainfall distribution along the coast in the 3rd quarter of 2016 Fig 2a– 2d: Map showing the mean maximum temperatures over the coast during the third quarter 2016. 1.4 September In September, the Inter Tropical Discontinuity (ITD) line continued its northward incursion and gradually began a southward descent, fluctuating between Lat. 13.9°N, and18.5°N with a mean position of 16.4°Nleading to a remarkable increase in moisture influx, especially around the south eastern coast. Generally, the winds were South Westerly backing southerly, with speed ranging 5-18knots. There was a slight increase in mean daily maximum and minimum temperature along the coast line of Nigeria as compared with the month of August with observed mean values between 27.20C-29.70Cand 17.4oC-24.60C respectively. Daily mean Sea Surface Temperature (SST) dipped remarkably over Eket, East mole and Koko with mean values of 26.9oC, 27.30C and 27.5oC respectively. The month also witnessed further intensification of the St. Helena high pressure system from1025hPa to 1044hPa bringing in more moisture into the country leading to increased rainfall amounts recorded for most parts of the coast during the period. There was a marked increase in rainfall amount in the month of September over the south west part of the coast as the month marked the second peak of the season for that region. Eket recorded the highest amount of about738.1mm while Aiyetoro, Koko, East mole, NIOMR, Onne, and Calabar recorded 585.5mm, 531.7mm, 210.6mm, 217.8, 233.8mm and 345.3mm of rainfall respectively. The sea state was predominantly slight to moderate. The highest maximum temperature was observed at NIOMR Lagos State with a value of 33.2oC while the lowest minimum of 24.7oCoccurred at Aiyetoro in September, 2016.There were reports of disruption of activities due to coastal flooding along the coast of Lagos, Rivers, and Akwa Ibom States in the months of August and September. Fig 3a – 3d: Map showing mean minimum temperatures over the coast during the third quarter of2016. 2.0 The Sea Surface Temperature (SST) Analysis
7. Onne 82.2 475.0 233.8 Table 1: Rainfall distribution along the coast in the 3rd quarter of 2016 Fig 2a– 2d: Map showing the mean maximum temperatures over the coast during the third quarter 2016. 1.4 September In September, the Inter Tropical Discontinuity (ITD) line continued its northward incursion and gradually began a southward descent, fluctuating between Lat. 13.9°N, and18.5°N with a mean position of 16.4°Nleading to a remarkable increase in moisture influx, especially around the south eastern coast. Generally, the winds were South Westerly backing southerly, with speed ranging 5-18knots. There was a slight increase in mean daily maximum and minimum temperature along the coast line of Nigeria as compared with the month of August with observed mean values between 27.20C-29.70Cand 17.4oC-24.60C respectively. Daily mean Sea Surface Temperature (SST) dipped remarkably over Eket, East mole and Koko with mean values of 26.9oC, 27.30C and 27.5oC respectively. The month also witnessed further intensification of the St. Helena high pressure system from1025hPa to 1044hPa bringing in more moisture into the country leading to increased rainfall amounts recorded for most parts of the coast during the period. There was a marked increase in rainfall amount in the month of September over the south west part of the coast as the month marked the second peak of the season for that region. Eket recorded the highest amount of about738.1mm while Aiyetoro, Koko, East mole, NIOMR, Onne, and Calabar recorded 585.5mm, 531.7mm, 210.6mm, 217.8, 233.8mm and 345.3mm of rainfall respectively. The sea state was predominantly slight to moderate. The highest maximum temperature was observed at NIOMR Lagos State with a value of 33.2oC while the lowest minimum of 24.7oCoccurred at Aiyetoro in September, 2016.There were reports of disruption of activities due to coastal flooding along the coast of Lagos, Rivers, and Akwa Ibom States in the months of August and September. Fig 3a – 3d: Map showing mean minimum temperatures over the coast during the third quarter of2016. 2.0 The Sea Surface Temperature (SST) Analysis