#WaterWatch

Why cloud seeding to enhance rain will not work for W Cape #WaterWatch

With the Western Cape and large parts of the country in the grip of severe water shortages, why is the prospect of cloud seeding not under consideration?

Cloud seeding is the process of spreading either dry ice or more commonly, silver iodide aerosols, into the upper part of clouds to try to stimulate the precipitation process and form rain.

Nico Kroese, manager, prediction and observation research at South African Weather Service talks to Africa Melane about the possibility of cloud seeding, the process of enhancing rainfall from clouds that is practiced in other parts of the world.

South Africa had a rich history in rainfall enhancement research, but funding was stopped in 2000. Since then no further research has been conducted. He says SA has participated in initiatives overseas.

The type of rain that we get in the Western Cape is unfortunately not conducive for rainfall enhancement.

Nico Kroese, South African Weather Service

He explains that the focus in South Africa has been on convective storms to enhance the rainfall from thunder clouds and storms, and the rainfall in the Cape is from frontal systems.

Maybe some good news is that at this stage we are on the brink of entering into the winter season so I am positive that for the coming winter season the Western Cape will receive enough rain to supplement the dams.

Nico Kroese, South African Weather Service

CapeTalk welcomes all comments that are constructive, contribute to discussions in a meaningful manner and take stories forward.

However, we will NOT condone the following:

  • Racism (including offensive comments based on ethnicity and nationality)
  • Sexism
  • Homophobia
  • Religious intolerance
  • Cyber bullying
  • Hate speech
  • Derogatory language
  • Comments inciting violence.

We ask that your comments remain relevant to the articles they appear on and do not include general banter or conversation as this dilutes the effectiveness of the comments section.

We strive to make the CapeTalk community a safe and welcoming space for all.

CapeTalk reserves the right to: 1) remove any comments that do not follow the above guidelines; and, 2) ban users who repeatedly infringe the rules.

Should you find any comments upsetting or offensive you can also flag them and we will assess it against our guidelines.

CapeTalk is constantly reviewing its comments policy in order to create an environment conducive to constructive conversations.

Read More
'City must build trust with Capetonians about the water crisis'

'City must build trust with Capetonians about the water crisis'

Dr David Olivier says City needs to be transparent as a sense of panic in Cape Town increases with the dam levels get worsening.

Elandsfontein aquifer under threat from mining company

Elandsfontein aquifer under threat from mining company

West Coast Environmental Protection Association launched an urgent interdict as the company continued to dewater the aquifer.

Cape Town man makes money out of selling excess water amid drought

Cape Town man makes money out of selling excess water amid drought

Henk Meyer had to find alternative ways to survive after CoCT banned construction companies from using municipal water.

Save like a Local water saving campaign aimed at Cape Town tourists

Save like a Local water saving campaign aimed at Cape Town tourists

The "Save like a Local" campaign will focus on conscientising visitors about saving water while on holiday in the Mother City.

What does the law say about selling water?

What does the law say about selling water?

CapeTalks Kieno Kammies speaks to a law expert at Cliffe Dekker Hofmeyr about legalities around the selling of water.

LISTEN: Cape Town City elaborates on water disaster plan

LISTEN: Cape Town City elaborates on water disaster plan

The City's Xanthea Limberg explains what each phase entails, adds that officials want to avoid worst case scenarios at all costs.

Popular articles
"Case against President Zuma is strong, it is sound and ready to go to trial"

"Case against President Zuma is strong, it is sound and ready to go to trial"

Barry Bateman, EWN reporter in the Supreme Court of Appeal's ruling to reinstate charges and what this means for President Zuma.

V&A Waterfront responds to claims of sewage water on customer's car

V&A Waterfront responds to claims of sewage water on customer's car

A customer was not happy to find her car in a huge puddle of effluent water after doing her shopping at the V&A Waterfront.

Heroic fire fighter saves drowning child while on holiday

Heroic fire fighter saves drowning child while on holiday

It's not clear how long the little girl (3) spent underwater but it took ten minutes to resuscitate her.

De Waal Drive is now renamed after Philip Kgosana, but who was he? Here's a look

De Waal Drive is now renamed after Philip Kgosana, but who was he? Here's a look

Cape Town's well-known bend has been renamed in honour of PAC stalwart Philip Kgosana, but very few know his historic importance.

A list of words that people need to 'basically' stop using

A list of words that people need to 'basically' stop using

These words have become so overused and pretentious that listeners believe that they've lost their meaning.

3 emergency numbers you should have on speed dial and how they work

3 emergency numbers you should have on speed dial and how they work

These are the emergency numbers you should have on your cellphone and this is what you must understand about how they work.