Saturday, Sep 05th

Last updateFri, 04 Sep 2015 10am

You are here: Home Weather Understanding Weather - not predicting -
GIPF

More amendments to Regulations 28 and 29 pending

Several new amendments to Regulations 28 and 29 of the Pension Fund Act are on the cards, according to the Namibia Finan...

CRAN prepares to regulate postal services

CRAN prepares to regulate postal services

The Communications Regulatory Authority of Namibia (CRAN), with the assistance of Analysis Mason, recently hosted a stak...

Brother, don’t let your arrow itch for this goat

Brother, don’t let your arrow itch for this goat

The councillors of the !Xoo Traditional Authority represented the San Community at Settlement 13 in the Aminuis Corridor...

VET Levy key priority training starts

VET Levy key priority training starts

The Namibia Training Authority (NTA) has in its first year of collection amassed just over N$266 million for the Vocatio...

Horse mackerel processing plant to unlock quota value

Despite suffering a 10% year-on-year horse mackerel quota reduction, Bidvest Namibia through its subsidiary Bidvest Fish...

NAMSOV retains staff in trying times

NAMSOV retains staff in trying times

The mainstay of Bidvest Namibia, NAMSOV, this week announced that it will retain its 664 strong workforce all in the hop...

Understanding Weather - not predicting -

What happened?
This past week an unusual synoptic pattern has held sway across the southern hemisphere. A major anticyclone with core pressures well above 1030hPa straddled the Date Line (180o) in the south Pacific while on our side, a complex low pressure pattern covered most of southern Africa and the southern oceans.
Both high and low pressure systems have been static for this period. Static in position but active within themselves: anticyclonic strength ensured a consistent flow to maintain La Nina’s, positive oscillation, and dominance of global weather.
The complexities of the vortex areas see one core deepen, drift somewhat eastward while in the cold, unstable polar air behind it a secondary vortex quickly forms, weakening the older core, then the same cycle is repeated. The effect of this pattern maintained a zonal flow throughout the troposphere (surface to 40000 feet) above southern Africa.
The unusual feature is that these differing systems have held their geographical placing while whatever else may be on the weather map either by-passes or collapses while these two major systems remain.
The other unusual feature is the global situation on either side of globe: the high and the low. Again, the effect saw a limited, if not absent, eastern Atlantic anticyclone, and similarly an absence of the western Indian Ocean anticyclone.
This departure from the norm means there is no lower level moisture input from the Indian Ocean, so with no push from the east, the heat-low pressure belt across southern Africa remains static ensuring that over Namibia there has been an advection of bone dry southerly air. This limits daytime temperatures but with no anticyclonic thrust it cannot undercut the heat-low. Without convergence, there is no cumulus cloud and no rain!
The thin layer of cloud visible has too little moisture but its presence offers hope for improvement as November wears on.
What’s coming?
The vortex pattern persists. The weak South Atlantic anticyclone remains limited throughout the period and because there is little ability to ridge round the continent, any development of a cell away to the east is restricted. Any prospect of late Spring showers depends on the persistent heat-low generating an upward convective extension to tap the adjacent moister air mass gathering above much of Zambia, linking with the equally adjacent Congo air mass then to advect this combination into our Kavango area or further west.
Current outlooks show a mixed set of patterns across the northern mid-subcontinent. Much of the data available is based on satellite images showing cloud coverage and direction of movement. Other observational sources in that area are, largely, non-existent. This data provides the grist from which computer models are built. Otherwise, it is up to a weather observer to assess what is seen to be present and offer an outlook regarding what the current situation will be able to evolve. The heat factor is seen to be increasing and its effects, as outlined earlier, offer a prospect of showers into the new week. n the south west, temperatures will be considerably cooler with a fresh southwesterly wind as a result of the high ridging in from the south Atlantic.

Articles In This Category
Weather
What happened? When applying such words as “normal” to weather and climate in our context, the essence of our arid environment must be...
Weather
Weather
Weather
Weather
What happened? We had an unusual set of patterns intruding on our complex climate couplings this week. A week ago saw anticyclonic controls...
28 March 2014 (650 hits)
Weather
What Happened? Conditions this week were somewhat anomalous. A prominent high pressure cell developed south-east of South Africa with its core some...
03 October 2014 (228 hits)
Weather
What Happened? The tenacity of the South Atlantic high pressure cell surprised both professional forecasters and laymen. Pushing in over the weekend...
Weather
What Happened A rare phenomenon manifested during the course of the week. Early in the week, the customary high pressure cell sat over South Africa...
Weather
What happened? The full weather stage has been brought into focus these last 3 weeks; emphasizing the clash between local individuality and the...
Weather
What happened? These days when weather analysis is to be found at the fingertip through a keyboard, the hard-earned expertise based on observation...
Related Articles
Weather
What happened? At an unusual time of the year we have seen, one way or the other, a departure from synoptic patterns prevalent across the southern...
Weather
 What happened? That the world’s weather patterns are at odds with themselves seems to be a common consensus. Primarily the cause is to be...
Weather
What happened? We have seen an interesting hiatus in the development of weather patterns variously around the world as year 2011 progressed. Seasons...
Weather
What happened? Summer begins with December. From one aspect at least, a start is made to summer as pressure patterns move toward a summery stance....
Weather
What happened? This week was marked by a cut-off low over the Orange River in the south and a broad trough of tropical moisture moving in from Angola...
Latest Articles
Headlines
The Alexander Forbes team did not win the Dundee Precious Metals Tsumeb golf tournament but they certainly caught the eye with their stylish attire...
Headlines
The City of Windhoek announced this week that they are experiencing a flood of applications for land particularly at their Katutura offices since the...
Headlines
Several new amendments to Regulations 28 and 29 of the Pension Fund Act are on the cards, according to the Namibia Financial Institutions Supervisory...
Markets
Releasing a trading update this week, Namibia Breweries Limited announced that its Earnings Per Share for the year ended 30 June 2015 is expected to...
Editors Desk
If there is one common thing that Cecil the Lion has demonstrated clearly, it is the power of tourism to be a catalyst for economic growth. Although...
Private Public Partnerships vital in poverty eradication

Private Public Partnerships vital in poverty eradication

Friday, 04 September 2015

At a drought relief handover early this week, Minister of Poverty Eradication and Social Welfare, Hon. Dr Zephania Kamee...

Readmore

Real estate is a growth catalyst but disparities exist

Friday, 04 September 2015

Standard Bank South Africa sees a growing consumer middle-class, powered by rapid urbanisation and shifting demographic ...

Readmore

SA vehicle sales declined again

Friday, 04 September 2015

Car and truck sales in South Africa has continued its downward trend for another month. Releasing the sales statistics e...

Readmore

Mobile travel insurer launches

Mobile travel insurer launches

Friday, 04 September 2015

Affordable travel and road accident mobile insurance provider, and 2014 winner of the Development Bank innovation award,...

Readmore

NBL’s Earnings Per Share expected to increase

Friday, 04 September 2015

Releasing a trading update this week, Namibia Breweries Limited announced that its Earnings Per Share for the year ended...

Readmore

JSE launches new Futures

Friday, 04 September 2015

The Johannesburg Stock Exchange (JSE), early this week officially launched JSE Eris Interest Rate Swap (IRS) Futures. Th...

Readmore

Use the power in tourism to drive the integration agenda

Friday, 04 September 2015

If there is one common thing that Cecil the Lion has demonstrated clearly, it is the power of tourism to be a catalyst f...

Readmore

Angolan diplomatic vehicle ignores animal disease control measures

Friday, 28 August 2015

A distressing incident happened last week at the veterinary control point on the Oshikango Ondangwa road just a short di...

Readmore

The tide is turning

The tide is turning

Friday, 04 September 2015

Undoubtedly the two subjects that currently feature most prominently in financial circles, is the rapid depreciation of ...

Readmore

Better briefing for better communication

Better briefing for better communication

Friday, 04 September 2015

I was handed a difficult document the other day, a long marketing plan heading well into double digit pages. The section...

Readmore

Repairs continue at Windhoek Crematorium

Friday, 04 September 2015

The old crematorium repairs have partially been completed and it should be noted that the crematorium is being operated ...

Readmore

Unifying people through art

Unifying people through art

Friday, 04 September 2015

The National Art Gallery of Namibia (NAGN) launched the Tulipamwe International Artists’ Exhibition on 1 September. The ...

Readmore

Remove misunderstanding between NCCI and fisheries ministry

Friday, 04 September 2015

In order to create a conducive environment through a continuous exchange of information the Ministry of Fisheries and Ma...

Readmore

The beginnings of a start-up community

The beginnings of a start-up community

Friday, 04 September 2015

It is exciting thinking that the bandwagon of support for entrepreneurship by some African governments because of failur...

Readmore

Paper Towns - Film Review

Paper Towns - Film Review

Friday, 04 September 2015

Following the heart-felt film ‘The Fault in Our Stars’, Paper Towns is another coming-of-age story of Quentin (Nat Wolff...

Readmore

Kemanguluko Art & Photography Exhibition

Kemanguluko Art & Photography Exhibition

Friday, 04 September 2015

The Omba Gallery in the Old Breweries building in the Windhoek CBD is host to a combined exhibition, starting this week ...

Readmore

Preparations in full swing for Rugby 7s tourney

Preparations in full swing for Rugby 7s tourney

Friday, 04 September 2015

Preparations are in full swing for the Safland Windhoek Sevens rugby tournament scheduled for later this month with inte...

Readmore

Karate championships to grace the North

Karate championships to grace the North

Friday, 04 September 2015

The Namibia Karate Union announced this week that the official National Karate Championships are to be held at the Ongwe...

Readmore

Weather 04 September 2015

Weather 04 September 2015

Friday, 04 September 2015

What Happened
A full-blown El Nino event now rages in the east Pacific. Technically this is defined as five successive th...

Readmore

Weather 28 August 2015

Weather 28 August 2015

Friday, 28 August 2015

What Happened
For the duration of this week, the dominant airflow over the entire country was from north to south.

Readmore

Fishing association voices concern over phosphate

Friday, 21 August 2015

The Confederation of Namibia Fishing Associations recently voiced its concern against proposed marine phosphate mining i...

Readmore

Anti-poaching efforts gain momentum

Friday, 14 August 2015

COVER, a not for profit organisation is lobbying for the legal trade of rhino horn and elephant ivory while also advocat...

Readmore

Weaner season comes to end

Weaner season comes to end

Friday, 04 September 2015

With only one more weaner auction next week Wednesday in the South, Agra announced this week it has conducted a series o...

Readmore

Bonsmara, Brahman, bank’s favourites

Friday, 04 September 2015

The annual Bonsmara promotional day in August and the accompanying G8 auction have become a platform for sharing informa...

Readmore

WEF’s Schwab to receive 14th doctorate from KAIST University

WEF’s Schwab to receive 14th doctorate from KAIST University

Friday, 04 September 2015

Geneva, Switzerland. Professor Klaus Schwab, Founder and Executive Chairman of the World Economic Forum, will be honoure...

Readmore

Leading through challenging times

Leading through challenging times

Friday, 04 September 2015

The African Leadership Institute’s fundamental approach to leadership training rests on the premise that challenging tim...

Readmore

Hardap tourism centres to create jobs for locals

Hardap tourism centres to create jobs for locals

Friday, 04 September 2015

The construction of five tourism centres as well as the expansion of an SME Industrial Park in Hardap Region is expected...

Readmore

Namibian tourism up 7.6% from 2013

Friday, 28 August 2015

Over 1.4 million tourist chose Namibia as their tourist destination in 2014 compared to 1.3 million in the previous year...

Readmore

Cancer Associations’ update on projects

Cancer Associations’ update on projects

Friday, 28 August 2015

The Cancer Association under the new management team and staff recently had a strategic planning and repositioning weeke...

Readmore

This is how you treat patients

This is how you treat patients

Friday, 21 August 2015

The Minister of Health and Social Services, Hon Dr. Bernard Haufiku (centre) holds a copy of one of the Infection Preven...

Readmore

Mining is still Africa’s future

Friday, 04 September 2015

One of the most prominent Australian miners in Africa said this week global equity markets should not under-estimate the...

Readmore

The case for renewable energy confirmed

Friday, 28 August 2015

REEE-powering Namibia is about energising national development by capitalising on local advantages and strengths, such a...

Readmore

Agra celebrates 35 years in business

Agra celebrates 35 years in business

Friday, 04 September 2015

Agra last week celebrated their 35th year of existence, a week after the company celebrated the opening of their largest...

Readmore

Spring comes with fuel price relief

Friday, 04 September 2015

Fuel pump price for September decreased early this week, as 95 Octane Unleaded Petrol went down by 30 cents per litre re...

Readmore

FNB enters in best company trials

Friday, 04 September 2015

FNB Namibia announced that it participated in the recent 2015 Deloitte Best Company to Work for on a trial basis. Andrew...

Readmore

South Korea helps local training sector

South Korea helps local training sector

Friday, 28 August 2015

Namibia continues to be hampered by a scarcity of skilled labour, according to Jerry Beukes, acting chief executive Offi...

Readmore

No Images