Parts of the US and Mexico are anticipating intensified heatwaves with temperatures significantly above average, while South Africa grapples with deadly flooding.

<p>Temperatures soar in California and Arizona, while deluge continues across Western and Northern Cape</p><p>Heat is expected to intensify across western parts of the US and Mexico this week as a ridge of high pressure pushes temperatures well above the seasonal norm. Daytime highs are forecast to reach 10-15C above average in some areas.</p><p>The US National Weather Service has issued heat advisories for parts of California and Arizona, with extreme heat warnings in force on Monday and Tuesda...