Categories: South Africa

More rain than usual expected in autumn 2017

Slightly more rain than normal can be expected in South Africa’s summer rainfall area for the remainder of the 2016/17…

In addition, temperatures are anticipated to be warmer than usual countrywide. This is according to Cobus Olivier, Weather SA’s prediction scientist.

“However, even though wetter conditions are expected throughout the autumn season, rainfall tends to dramatically decrease over the north-eastern parts of the country during autumn,” he said in a statement.

Many regions in the central and western parts of the country had received below-normal rainfall this season, despite the good rains since January 2017 in the rest of the summer rainfall area, he added.

Water should consequently be used sparingly and water users needed to put water-saving measures in place. Significant water loss could be expected, given the normal decline in rainfall towards winter, coupled with increased evaporation, particularly over the summer rainfall areas.

Observations showed that ENSO (El Niño Southern Oscillation) had moved into a neutral phase from the previous weak La Niña state. Upper-air wind patterns also indicated that the usual La Niña state influence was marginal.

The Indian Ocean Dipole (IOD) was still in a neutral phase and this was expected to persist for the coming seasons. The Southern Annular Mode (SAM) had been tending towards a negative phase since November 2017.

This and the weakening of the polar vortex were usually associated with colder, wetter conditions over the winter rainfall region of South Africa, Olivier said.

Recent Posts

‘Wool sheep from Lesotho now being slaughtered in SA’

Wool growers in Lesotho, who had not received an income since March 2018, are now selling their stock to slaughter…

11 hours ago

Focus on market access at agribusiness conference

The 2019 Agribusiness Africa Conference, hosted by South Africa’s largest English language agricultural publication, Farmer’s Weekly, will bring together top…

12 hours ago

Our sorry, calloused souls

Any person who has endured tragedy will know that bewildering feeling that settles in soon after the traumatic event when…

13 hours ago

Blowers that can clean much more than leaves!

Husqvarna leaf blowers are ergonomically designed to provide maximum comfort and ease-of-use over an extended period.

15 hours ago

ARC Agri Indaba 2019

The ARC Agri Indaba is a new two-day, agricultural business-to-business trade event. Highlights include a gala conference during which the…

15 hours ago

Worst locust invasion in Sardinia for more than 60 years

Millions of locusts have invaded the Italian island of Sardinia, with the province of Nuoro the worst hit.

16 hours ago

This website uses cookies.