Author: Weatherman

[email protected]. Heatwave conditions have set in again over the southern half of the country. This is readily seen in charts of the 500 mB surface where it shows very stable conditions. At that level, for most of...

What Happened This week it was the South Atlantic high pressure cell’s turn to collapse. The week started with a very weak South Atlantic high, down to just 1016 mB with a poorly defined core about 1000 km west of Oranjemund. In...

What Happened The off-balance synoptic picture continued into this week. The South Atlantic high pressure cell is in its customary location west of Cape Town, slightly displaced to the south, with a strong core reading of 1032...

What Happened The southern boundary of the Inter-Tropical Convergence Zone remains largely indiscernible over east Africa. In the west, across Angola and western Zambia, it is well defined indicating the presence of a fairly...

What Happened The heatwave that started at the end of last week persisted through the weekend into the first half of this week. This lead to day temperatures in the upper 30s across the country with the north, the north-east,...

What Happened The meteorological literature presents a difference of opinion regarding the so-called Inter-Tropical Convergence Zone (ITCZ). In very simple terms, this is the zone around the globe from more or less 10°N to 10°S...

What Happened The anti-cyclonic circulation over the sub-continent is growing in strength by the week. The effect can be seen in the airflow which is predominantly north-east to north, and the very hot afternoons over the...

What Happened During September, the Oceanic Nino Index (ONI), for the first time since March 2012, registered -0.5 (minus zero point five). This index maintained by the Climate Prediction Center in the National Oceanic and...