A severe winter storm has triggered widespread travel paralysis and power outages across the United States, prompting emergency declarations in 17 states and the District of Columbia while grounding thousands of flights.

Storm Boelo has left 32,000 premises without power and triggered orange wind warnings, severe travel disruption, and cultural site closures.

Storm Austen has battered parts of the UK with 84mph winds, leaving thousands without power, closing schools, and disrupting transport ahead of Storm Boelo.

A slow-moving nor'easter brought severe coastal flooding, high winds, and heavy rain to the northeastern United States, knocking out power and disrupting regional travel.

A severe autumn Nor'easter has battered the US Northeast, grounding hundreds of flights, causing widespread blackouts, and forcing event cancellations.

A severe nor'easter has battered the East Coast, causing widespread power outages, severe street flooding, and flight cancellations across New Jersey and New York.