Date: 16 September 2019
Period: 16 September until 23 September 2019
Low cloud with fog can be seen already over the southwestern parts of the country and the north eastern parts where the fog will clear early on. Otherwise, fine and hot weather is expected today across most of the country with strong NE winds over the east coast. Coastal areas are expecting to see clouds developing overnight leading to morning mist in the southwestern parts of the country tomorrow morning Tuesday). Clear skies are expected to continue Tuesday with strong NW winds over the central Northern Cape and hotter temperatures across the country when compared to Monday's temperatures. In the evening, partly cloudy skies are expected to develop over the south and eastern coastline with more of the cloudy weather staying over the eastern parts of the Eastern Cape where there might be light drizzle near Port St. John's, Bhizana, Umthatha and Coffee Bay. Wednesday morning will start off cloudy with light drizzle over the Eastern Cape spreading into the KwaZulu-Natal's southern coastline in the afternoon. This will result in cooler temperatures over the east coast including the Eastern Cape's east coast adjacent interior.
Moderately strong winds are expected from midday in the south coast moving east to cover the east coast in the afternoon with E-SE winds reaching speeds of 30- 35km/hr but not going further than Durban. On Thursday, very isolated showers are expected over southern KwaZulu-Natal because of widespread partly cloudy skies over the coastal provinces (WC, EC & KZN) with partly cloudy skies being retained over the east coast (between East London and Durban). Stronger winds in the western Northern Cape will start early, spreading to the central parts of the province by midday. These winds with their mostly offshore flow will make conditions favourable to the spread of wildfires in the western Northern Cape resulting in intense heat in some towns in the west Vredendal 41°C, Kheis 39°C, Springbok 37°C, along the south coast is where the strongest winds will be felt with speeds up to 50km/hr near the windy city of PE.
Friday will be windy, stronger winds with speeds of 60-70km/hr over the Karoo are expected spreading east to areas outside the Karoo, the east coast in no exception to the strong winds as they will start early on in the day gusting near 50km/hr. Along the southwest coast, light drizzle is expected near Cape Town as an indicator of a strong system developing to the west of the country over the Atlantic ocean.
On Saturday the southwestern coastline will receive cooler rain in the morning, it will move along the south coast with isolated showers over the Western Cape interior during the day, while later in the afternoon, scattered showers are expected over the Eastern Cape. After a generally warm to hot week, Saturday will be hot in the Lowveld as clear skies continue in the north and north eastern parts of the country, while due to cloud cover and rains, cooler temperatures are expected over the western parts of the country. Sunday, the system slows down while over the Eastern Cape resulting in widespread showers possibly leading to higher amounts of runoff water available and even possible flooding in places over the eastern parts of the Eastern Cape. Towards Sunday afternoon, these will, of course, cover southern KwaZulu-Natal with possible isolated thunderstorms in the northern escarpment and Lowveld overnight.
Storms containing large hail: (any mention of thunderstorms in the forecast automatically presumes a very low chance of large hailstorms). Not expected.
Intense lightning: (any mention of thunderstorms in the forecast automatically presumes a low chance of intense lightning). Not expected.
Flash flooding: (any mention of thunderstorms in the forecast automatically presumes a very low chance of flash flooding). Not expected.
Fire risk: Hot, dry and windy conditions are expected over the western Northern Cape provinces on Wednesday, spreading to all Cape provinces on Thursday.
Other: Strong winds expected along the south and east coasts throughout the day on Thursday. Strong winds expected over the Karoo and Eastern Cape interior including the south and east coast intermittently on Friday.
Very high 90-100% chance.
High 80% chance.
Medium 60% chance.
Low 40% chance.
Very low 20% chance.
Please take a moment to give us your suggestions