OR Tambo international airport has urged customers to allocate extra travel time due to bad weather conditions and a tornado that battered the City of Ekurhuleni on Tuesday afternoon. "Passengers are advised to allocate additional time for travel to the airport due to weather constraints experienced‚" the airport shared on their social media page.Passengers are advised to allocate additional time for travel to the airport due to weather constraints experienced. — ORTambo (@ortambo_int) July 26, 2016dEarlier on Tuesday‚ a tornado hit parts of Ekurhuleni including Phumulani Mall‚ Tembisa hospital and a filling station‚ before heading towards the OR Tambo International Airport.Watch: The moment tornado rips through EkurhuleniVideo footage has emerged showing the moment a tornado struck in Tembisa, whipping debris into the air. Video courtesy Jana van den Heever via FacebookThis resulted in major traffic delays on the R21 North and the N1 north towards Tembisa. Ekurhuleni Emergency Services spokesperson Wilfred Kgosago said motorists should add extra time as roads leading to the township were experiencing slow moving traffic.1. Netstar Traffic ‏@netstartraffic #JHBTraffic Congestion: Olifantsfontein Rd westbound between R21 and Madiba Dr‚ ave speed 10km/h (21min delays)#JHBTraffic Congestion: Olifantsfontein Rd westbound between R21 and Madiba Dr, ave speed 10km/h (21min delays) — Netstar Traffic (@netstartraffic) July 26, 2016dThe Gauteng Department of Health said 20 people had been injured at the Phumulani Mall.The department said although there had been no injuries to staff or patients at the Tembisa hospital‚ it said that the hospital’s fence‚ carports‚ about 20 vehicles belonging to employees‚ including three ambulances‚ and the roof of one building had been destroyed. Trees had also been uprooted.Meanwhile‚ the South African Weather Service said that severe weather patterns should subside throughout Tuesday night.Forecaster Vanetia Phakula said on that thunderstorms‚ some of which may be severe‚ were expected over Gauteng‚ Mpumalanga‚ Limpopo and KwaZulu-Natal throughout the night.“But for now there is no indication of any severe thunderstorms over Thembisa‚ where the tornado was identified‚” she said.She added that the situation “should be getting better” throughout the evening.The weather service has issued severe weather alerts for Wednesday‚ saying disruptive snowfall is expected over the extreme south-western parts of KwaZulu-Natal‚ north-eastern parts of the Eastern Cape and the extreme south-eastern parts of the Free State.“Heavy rain leading to localised flooding is expected in places over north-eastern parts of KwaZulu-Natal in the morning and also over the northern parts of the West Coast District and the southern parts of the Namakwa District of the Northern Cape‚” it said.City officials have already sent out teams to northern parts of Ekurhuleni to assess the situation and more assessment would be made throughout the night to determine if the area should be declared a disaster...