Monday, Mar 30th

Last updateFri, 27 Mar 2015 12pm

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

Kombat up for sale

Kombat Copper Incorporated recently announced that it would divest from the town of Kombat as well as five of its non-co...

Nambrew optimistic about H2

Nambrew optimistic about H2

An increased competitive landscape has not dampened Namibia Breweries Limited’s expectations for the rest of its finan...

Namibia’s third President takes his oath

Namibia’s third President takes his oath

Namibia last week on 21 March celebrated its 25th Independence Day Celebration and also witnessed the swearing in of the...

Chinese diplomacy in pictures

Chinese diplomacy in pictures

The Chinese Embassy in Namibia hosted a reception and photo exhibition on Wednesday in Windhoek to celebrate 25 years of...

Short films building grassroots screen culture

Short films building grassroots screen culture

The Namibian Film Commission’s most recent contributions to the industry was supposed to be celebrated in style but th...

Breweries prepared for water shortage

Namibia Breweries said they have contingency plans in place to mitigate the risks of a severe water shortage if drought ...

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? With the gradual transition from autumn to winter in the southern hemisphere, a more typcial (expected) weather pattern is slowly...
Weather
What happened? Again the northern half of the country remained off the central weather stage while the southern half saw brisk activity. Two major...
Weather
Weather
What happened? The persistent presence of an high-pressure core to the east of Namibia is a feature that one expects to   find with a...
Weather
What happened? This last week saw an unexpected switch from the generally dry weather patterns which prevailed these past months. Although high...
Weather
What happened? A complex weather pattern has taken control of our skies for the past eight weeks. We experience it in the form of abnormally hot...
Weather
What happened? A cold front, driven by a ridge (high pressure cell) was followed by a second, weaker cold front which penetrated far across the...
Weather
What happened? The probability of a cold intrusion was fully met as the flow behind a cold front swept, perhaps obliquely, across much of Namibia....
weather (159 hits)
Weather
What Happened To understand the interplay between high pressure cells and low pressure areas, it is convenient to slice the atmosphere into three...
Weather
What Happened? The presence of a weak lower pressure area over the western half at midweek, both the beginning and the end of the week were...
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
Leisure
MTC is organising the largest music explosion to have ever hit Windhoek, announced Tim Ekandjo, Chief Human Capital & Corporate Affairs for MTC,...
Markets
Weather
Headlines
Namibia’s third president, His Excellency Dr. Hage Geingob declared a war on poverty when he addressed an excited crowd at the Independence Stadium...
Headlines
The FNB Global United team of international soccer players arrived earlier this week for their series of Climate Kick matches this weekend.

NCCI to better SMEs

Friday, 27 March 2015

The Namibia Chamber of Commerce and Industry (NCCI), in an effort to improve the operations of Small and Medium Enterpri...

Readmore

Streethouse launches T-shirt design competition

Streethouse launches T-shirt design competition

Friday, 27 March 2015

Well-known trendy clothing franchise, Streethouse has come out with a roar.

Readmore

NRSC Easter Campaign focuses on speeding

NRSC Easter Campaign focuses on speeding

Friday, 27 March 2015

The National Road Safety Council(NRSC) launched its Easter Road Safety Campaign on 24 March at the Tony Rust Racing Trac...

Readmore

Live to Celebrate

Friday, 20 March 2015

The Motor Vehicle Accident Fund and its partners launched a new awareness and prevention campaign this week to prepare f...

Readmore

Tuxie’s take-aways in Kasie style

Friday, 27 March 2015

Businesswoman and brainchild behind Pewa Comestics and Xwama Restaurant, Twapewa Kadhikwa and her husband Erastus Kadhik...

Readmore

Oh capital market named Desire, where is the sweet bird of youth?

Friday, 27 March 2015

According to my understanding, the annual budget is more or less finished by the end of November of the previous year, s...

Readmore

When the partner slows you down, it is time to reconsider the relationship

Friday, 20 March 2015

25 years after overthrowing political domination of Namibia by South Africa, it is time for us to revisit our economic a...

Readmore

Quality of thinking

Friday, 27 March 2015

I spent the last two months on topics related to the “take action” aspect of innovation. Nonetheless, before you tak...

Readmore

Offbeat 27 March 2015

Friday, 27 March 2015

Once upon a time, there was a comic book called V for Vendetta. The antihero took issue with fascism in the UK, and donn...

Readmore

Fish Trust gets own cold storage

Fish Trust gets own cold storage

Friday, 27 March 2015

The Namibia Fish Consumption Promotion Trust (NFCPT) received a cold room facility and chill room from the Overseas Fish...

Readmore

CoW donates to the needy

CoW donates to the needy

Friday, 27 March 2015

The City of Windhoek handed over donations that included beds, mattresses, school uniforms and food to selected charity ...

Readmore

A Silver Jubilee worth remembering

Friday, 27 March 2015

“And you shall consecrate the fiftieth year, and proclaim liberty throughout the land to all its inhabitants. It shall...

Readmore

A stinky silver jubilee

Friday, 20 March 2015

I have long since believed that chivalry is dead, well all across the world it is, and in Namibia it seems it never even...

Readmore

Trey Songz and Rebecca Malope

Trey Songz and Rebecca Malope

Friday, 27 March 2015

MTC is organising the largest music explosion to have ever hit Windhoek, announced Tim Ekandjo, Chief Human Capital &...

Readmore

Foster & Allen in SA

Foster & Allen in SA

Friday, 27 March 2015

Well-known South African presenter and music promoter, David Gresham (second from left), this week welcomed the famous I...

Readmore

Sunshine Boxing Academy undeterred

Sunshine Boxing Academy undeterred

Friday, 27 March 2015

Boxing Promoter Nestor Tobias speaking to the Economist said that Paulus ‘Hitman’ Moses defeat the past weekend was ...

Readmore

Bidvest Cup quarter-finals commence

Friday, 27 March 2015

With 129 goals scored thus far, all roads lead to the Sam Nujoma Stadium in Katutura as the 2015 Bidvest Namibia Cup qua...

Readmore

Rainfall 27 March 2015

Rainfall 27 March 2015

Friday, 27 March 2015

Readmore

Weather 27 March 2015

Weather 27 March 2015

Friday, 27 March 2015

What Happened
A marked convergence line was present at the beginning of the week running from the Kunene to Aroab. West o...

Readmore

Strict barriers for illegal wildlife trade

Friday, 27 March 2015

Deputy Prime Minister and Minister of International Relations Honourable Netumbo Nandi-Ndaitwah says strict trade barrie...

Readmore

Government takes action to mitigate drought risk

Friday, 27 March 2015

The Agriculture, Water and Forestry Ministry is continuing with the implementation of several of its policy directives t...

Readmore

Smart methods to assist farming

Friday, 27 March 2015

In an effort to mitigate the effects of the drought, Agra ProVision and Agri-Ecological Services hosted a stakeholder wo...

Readmore

AMTA launches Foundation Strategy

Friday, 20 March 2015

The Agro Marketing Trade Agency (AMTA) launched its Strategic Plan and Foundation Strategy last week.

Readmore

Standard Bank sponsors business school

Standard Bank sponsors business school

Friday, 27 March 2015

Standard Bank Namibia recently sponsored the Polytechnic of Namibia’s Harold Pupkewitz Business School Financial Secto...

Readmore

Law Society bursaries for law students

Law Society bursaries for law students

Friday, 27 March 2015

The Law Society of Namibia announced this week it has extended four more bursaries to new law students, joining the exis...

Readmore

Tourism conference set for Cape Town

Friday, 20 March 2015

The 11th International Conference on Responsible Tourism in Destinations (RTD11) will be held on 14 and 15 April at the ...

Readmore

Top chefs cook off in ultimate challenge

Friday, 20 March 2015

The Namibian Chefs Association announced this week its annual Ultimate Establishment Challenge will take place on 26 Mar...

Readmore

National rabies prevention launched

Friday, 27 March 2015

The Ministry of Agriculture, Water and Forestry launched the Rabies Prevention Strategy last week in Windhoek.

Readmore

Pharmacists’ Assistants fight HIV

Pharmacists’ Assistants fight HIV

Friday, 20 March 2015

Pharmacists’ assistants working across Namibia came together on March 9, for five days in Otjiwarongo to share experie...

Readmore

Etango commissions demo plant

Friday, 27 March 2015

Bannerman Resources Limited, this week announced the successful completion of the construction and official opening of t...

Readmore

Forsys Metals rearing to go

Friday, 27 March 2015

Forsys Metals this week announced that it had completed its feasibility study for its Norasa project. Salient points ema...

Readmore

Botswana’s Sefalana  lands Metro in Namibia

Botswana’s Sefalana lands Metro in Namibia

Friday, 27 March 2015

After being acquired by Botswana’s consumer goods firm, Sefalana Group, last year, Metro Namibia was relaunched at an ...

Readmore

Reach for an Oshikandela!

Reach for an Oshikandela!

Friday, 20 March 2015

This month Namibia Dairies reached out to Namibians with their Nammilk Oshikandela drinking yoghurt, through a variety o...

Readmore

Andrew Jansen hands over the baton

Andrew Jansen hands over the baton

Friday, 27 March 2015

Simonis Storm Securities this week announced the appointment of Mr. Bruce Hansen as its Managing Director effective 1 Fe...

Readmore

Unemployment rate drops

Unemployment rate drops

Friday, 27 March 2015

The Namibia Labour Force Survey for 2014 released on Thursday indicates that the rate of unemployment has decreased to 2...

Readmore

No Images