Overview

• SAWS has issued an urgent severe thunderstorm warning for Johannesburg and parts of Gauteng, citing heavy rain, lightning and a risk of localised flooding.
• An orange level 5 nowcast is in effect for western Gauteng, while yellow level 2 and level 4 alerts cover sections of North West, the Free State and the north‑eastern Northern Cape, with additional warnings reported for Mpumalanga and Limpopo.
• Hazards include damaging winds, hail and short, intense downpours likely to flood low‑lying roads, informal settlements and bridges.
• Johannesburg Emergency Management Services urges residents to stay indoors where possible, avoid flooded routes, drive slowly with headlights on and report emergencies to 011 375 5911 or 112.
• SAWS forecaster Tokelo Chiloane expects significant rainfall to taper from Wednesday as temperatures gradually rise, particularly over central and eastern provinces.