The surface weather (synoptic) chart shows that moist Southwesterly winds originating and blowing from the Atlantic Ocean are established and have continued to move Northwards relative to it’s position of 09/08/2016, within Niger and Chad republics; for today, they have moved further North to around Lat. 23.8oN in the Western sector, while also moving it's position Northwards of Lat. 22.0oN in the Eastern sector, all outside the country. The Inter Tropical Discontinuity (ITD) which is the indicator to measure the extent of the moist Southwesterly winds has further moved far North of Bilma (18.7oN) in Niger republic whilst also continuing it’s movement further North of Faya (18.0oN) in Chad republic, both to the Western and Eastern sector respectively ( Both stations are the farthest and Northernmost synoptic observing stations in Niger and Chad republics respectively). The surface low pressure centre located over the Arabian peninsula has deepened and extends a trough of low pressure across East Africa into the West African sub-region including Nigeria. The South Atlantic anticyclone (also known as St. Helena high pressure cell) located in the Southern Hemisphere remained established and continued to extend it’s ridge of high pressure into West Africa. As the ITD continue it’s Northward movement, more moisture influx into all parts of Nigeria, Niger and Chad republics are sustained.
The 0900GMT collective of today, gave rainfalls in the following stations: Gusau (3.2mm), Gombe (18.3mm) Lafia (0.3mm), Jalingo (22.2mm), Abuja (47.4mm), Ikeja (0.5mm) and Port Harcourt (less than 0.3mm) within the past 24 hours.
The 1500GMT satellite imagery of today, shows convective cells developing over Yobe state in the Northeast, across the Central states and over the Mambilla high grounds and extends across the border into Cameroon republic. Thunderstorms may likely developed in the Central states and will move Westwards to affect places including Abuja this evening/night.
Sunny, partly cloudy to cloudy conditions will affect parts of the Northern states while isolated thunderstorms are expected to affect areas in the Northeast in the afternoon/evening. Cloudy conditions will be experienced in the Central states with chances of scattered thunderstorms affecting places especially in the high grounds during the evening/night period. The Southern parts will be mainly cloudy with showers likely to develop in the afternoon; however, thunderstorms are expected to affect places in the Southeast and parts of the Coastal states during the afternoon/evening periods.