What is the 'Fujiwhara' phenomenon?

The 'Fujiwhara' phenomenon is a rare occurrence where two weaker or smaller storms merge and combine into one larger, more powerful storm.

How will Hurricane Humberto and Tropical Storm Imelda affect the UK?

Forecasters warn that the remnants of Hurricane Humberto and Tropical Storm Imelda could bring heavy rain, strong winds, and large waves to the UK this weekend, potentially leading to weather warnings across the country.

What is the current status of Hurricane Humberto and Tropical Storm Imelda?

As of September 29th, 2025, Hurricane Humberto has strengthened to a powerful Category 4 hurricane south of Bermuda, while Tropical Storm Imelda has formed and is expected to strengthen to hurricane-force as it moves north from the Bahamas.

Home / Weather / Powerful Hurricanes Humberto and Imelda Poised to Batter UK and Europe

Powerful Hurricanes Humberto and Imelda Poised to Batter UK and Europe

29 Sep

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Summary

Two major tropical storms, Humberto and Imelda, set to hit the UK this week
Storms may combine into rare 'Fujiwhara' phenomenon, increasing intensity
Forecasters warn of heavy rain, strong winds, and large waves that could lead to weather warnings

Powerful Hurricanes Humberto and Imelda Poised to Batter UK and Europe

As of September 29th, 2025, two major tropical storms are threatening to bring a deluge to the UK. Hurricane Humberto, currently south of Bermuda, has strengthened to a powerful Category 4 hurricane in the past few days. Meanwhile, Tropical Storm Imelda has formed and is expected to strengthen to hurricane-force as it moves north from the Bahamas.

Both storms are forecast to head eastwards across the Atlantic in the coming days, with the potential to be captured by the jet stream and whisked towards the British Isles. While the storms may have lost some of their earlier ferocity, forecasters warn they still have the power to bring disruptive conditions to the UK.

Ahead of the storms, a frontal system is expected to hit the UK on Wednesday, with a yellow warning for heavy rain in parts of western Scotland. Then, as the remnants of Hurricane Humberto make landfall this weekend, the rain is likely to become even heavier and more widespread, with strong winds and large waves also predicted.