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Weather 11 December 2015

Weather 11 December 2015

What Happened
The rigid control of Namibia’s weather by the South Atlantic high pressure cell was amply demonstrated this week.
In the wake of the departing high, the signature mid-level (low pressure) trough developed from southern Angola across Namibia from north to south, and into the Northern Cape interior. This system dominated local conditions over the weekend, continuing into Monday and Tuesday with a mid-level presence remaining until the end of the week.
On Monday, the absence of high pressure control on the surface was witnessed by the cloud base that has descended to around 9000 feet asl. This created an effective conveyor for tropical air from the Congo to traverse southern Angola and enter Namibian airspace during Sunday night. The result was the widespread and substantial falls that occurred over three quarters of the interior plateau and the northern Namib.
But by Tuesday evening, the outer rim of the next approaching South Atlantic high was close enough to exert a visible influence on surface conditions west and south of the so-called convergence line.
As the austral summer nears the solstice, sea surface temperatures in the southern hemisphere respond by getting warmer. This increase in water temperature has a measurable impact on the air immediately above the water. Over time, about three months, the warmer (or less cold) surface air has an impact on the higher levels meaning that the typically winter-style high pressure cells reduce in intensity and their cores may be displaced slightly southward.
At the beginning of this week, the South Atlantic high pressure cell was more or less in its customary place midway between South America and Africa.
However, as the week progressed, the core collapsed with the result that only a very weak (1016mB) cell remained, but at the same time it was dispersed over a vast stretch of ocean reaching all the way from close to the South American coastline to the edge of the African continent. Within the flattened, reduced cell, quiet and stable conditions were the norm. In Namibia it was indicated by the absence of strong westerly and south-westerly wind on the coast, both north and south of the Kuiseb vallley.
It is this weak South Atlantic high that allowed the anti-cyclonic system situated over the southern African interior to advect copious amounts of moisture on its western rim from the Congo to Angola and then into Namibia.
Another important feature of the week’s weather was the presence of moisture in all three levels, from surface up to 45,000 feet. The mid-level conveyor system usually remains active in summer despite the surface influence of the high, but when the high is as weak as this week, then moisture penetrates in all level, from around 9000 feet asl to as high as 45,000 feet. In the very thick atmosphere, convection is enhanced and good rains occur. When this system covers a very large expanse of land, it bring widespread rains.
What’s Coming
The core of the South Atlantic high regains some of its lost strength as the continental obstruction forces it on a trajectory that is deflected to the south. The cloud cover starts breaking up during Friday with only the Kavango and Zambezi regions indicated for continued rain. Temperatures in these two areas will remain elevated as it lies close to the core of the strong anti-cyclonic continental circulation.
Watch out for the tropical depression some 3000 km east of Madagascar. At this stage is relatively far but at 979 mB it is already strong enough to put unlimited quantities of moisture in the upper air from where it can be readily advected back to the continent by the zonal (east to west) upper airflow. It also reduced the strength of the southern Indian high, making room for the approaching South Atlantic high to pass quickly south of the continent.
The Karas region, dry for most of this past week, shows the first signs of clearing up, gradually followed by the rest of the country during Saturday and Sunday. Next week Monday and Tuesday will be mostly clear with a weak intrusion of moisture in the mid-levels, but it will only be towards the end of next week, once the high has departed, that another 4-day rain opportunity presents itself again.

About The Author


Today the Typesetter is a position at a newspaper that is mostly outdated since lead typesetting disappeared about fifty years ago. It is however a convenient term to indicate a person that is responsible for the technical refinement of publishing including web publishing. The Typesetter does not contribute to editorial content but makes sure that all elements are where they belong. - Ed.

Following reverse listing, public can now acquire shareholding in Paratus Namibia


20 February 2020, Windhoek, Namibia: Paratus Namibia Holdings (PNH) was founded as Nimbus Infrastructure Limited (“Nimbus”), Namibia’s first Capital Pool Company listed on the Namibian Stock Exchange (“NSX”).

Although targeting an initial capital raising of N$300 million, Nimbus nonetheless managed to secure funding to the value of N$98 million through its CPC listing. With a mandate to invest in ICT infrastructure in sub-Sahara Africa, it concluded management agreements with financial partner Cirrus and technology partner, Paratus Telecommunications (Pty) Ltd (“Paratus Namibia”).

Paratus Namibia Managing Director, Andrew Hall

Its first investment was placed in Paratus Namibia, a fully licensed communications operator in Namibia under regulation of the Communications Regulatory Authority of Namibia (CRAN). Nimbus has since been able to increase its capital asset base to close to N$500 million over the past two years.

In order to streamline further investment and to avoid duplicating potential ICT projects in the market between Nimbus and Paratus Namibia, it was decided to consolidate the operations.

Publishing various circulars to shareholders, Nimbus took up a 100% shareholding stake in Paratus Namibia in 2019 and proceeded to apply to have its name changed to Paratus Namibia Holdings with a consolidated board structure to ensure streamlined operations between the capital holdings and the operational arm of the business.

This transaction was approved by the Competitions Commission as well as CRAN, following all the relevant regulatory approvals as well as the necessary requirements in terms of corporate governance structures.

Paratus Namibia has evolved as a fully comprehensive communications operator in Namibia and operates as the head office of the Paratus Group in Africa. Paratus has established a pan-African footprint with operations in six African countries, being: Angola, Botswana, Mozambique, Namibia, South Africa and Zambia.

The group has achieved many successes over the years of which more recently includes the building of the Trans-Kalahari Fibre (TKF) project, which connects from the West Africa Cable System (WACS) eastward through Namibia to Botswana and onward to Johannesburg. The TKF also extends northward through Zambia to connect to Dar es Salaam in Tanzania, which made Paratus the first operator to connect the west and east coast of Africa under one Autonomous System Number (ASN).

This means that Paratus is now “exporting” internet capacity to landlocked countries such as Zambia, Botswana, the DRC with more countries to be targeted, and through its extensive African network, Paratus is well-positioned to expand the network even further into emerging ICT territories.

PNH as a fully-listed entity on the NSX, is therefore now the 100% shareholder of Paratus Namibia thereby becoming a public company. PNH is ready to invest in the future of the ICT environment in Namibia. The public is therefore invited and welcome to acquire shares in Paratus Namibia Holdings by speaking to a local stockbroker registered with the NSX. The future is bright, and the opportunities are endless.