westerly

However, as it often the case this time of year, as we transition out of summer and into autumn, we're now seeing a more westerly influence to the weather.

Meteorologists say it was mainly because of the interaction between the already existing monsoon system in the Indian subcontinent and westerly disturbances, a low pressure system that originates in the Mediterranean region and travels eastward.

India's weather agency said the floods are being caused by the repeated interactions between monsoon currents and weather systems like westerly disturbances.

"Once they started heading in a westerly direction one of the 'drones' appeared to converge with them and fly above and in front of them," the report said.

On Wednesday though those brisk westerlies switch more to a south-westerly flow which will start to draw some hotter weather in across parts of the UK.