Arctic blast blankets large parts of North America in snow

Roads melt as temps soar but WA locals keep their cool

Since January 1, the town of Marble Bar has not recorded a daytime temperature under 42C, and on Wednesday, it was above 47C.

Video: Lightning strike creates tower of flames next to US highway

A police officer's dashcam captured footage of the dramatic lightning strike.

Red lightning captured on video leaping in Chinese night sky

Rare burst of red lightning captured in southwest China’s Shannan City.

Second man dead, 'grave fears' for others amid vast NSW deluge

In the past 24 hours, there have been about 340 flood rescues including helicopters winching stranded residents off their roofs.