Storm Isha wreaked havoc across the UK, leaving thousands without power and causing widespread disruption in electricity and transport networks. The Met Office issued wind warnings for the entire country as gusts reached a staggering 99mph in some areas. The storm, hitting on a Sunday, prompted "unusual" danger-to-life wind warnings, raising concerns about possible tornadoes in parts of Britain. Multiple alerts, including two amber wind alerts, were issued, with a Status Red wind warning covering several counties in the Republic of Ireland. Rail, sea, and air travel faced substantial disruptions, with closures and delays extending into Monday. The Met Office warned that "everybody" would be affected, and record wind speeds of 99mph were noted in Northumberland during Storm Isha.

Rare red warnings persisted in north-east Scotland until 5 am on Monday, followed by amber warnings for much of the UK until 6 am and yellow warnings covering the entire country until noon. Additional yellow wind warnings for Scotland, Northern Ireland, north Wales, and northern England were set from 4 pm on Tuesday until noon on Wednesday.