Severe thunderstorms swept across northern Switzerland late on 13 July, striking at the very heart of the country’s aviation network: Zurich Airport. Within a matter of hours some 70 departures and arrivals were cancelled outright and a further 30 were diverted to alternate airports in Germany, Austria and Italy. Hundreds of travellers — many of them business passengers returning from Monday meetings or positioning for Tuesday morning events — found themselves bedding down in the terminal as lightning and hail made ramp operations impossible. The timing could hardly have been worse. Zurich is already operating close to capacity during the peak summer season, regularly handling more than 110,000 passengers a day. Because the airport is subject to an 23:00 curfew designed to protect local residents from night-time noise, delayed aircraft quickly ran out of operating hours, amplifying the disruption. The knock-on effect spilled into 14 July, with aircraft and crews out of position and heavily-booked holiday flights leaving little slack in the system. Swiss International Air Lines and Edelweiss, both based at Zurich, were hardest hit. Edelweiss confirmed that at least one rotation each on its long-haul services to Seattle and Denver had to be cancelled, while short-haul holiday runs to Mediterranean islands were pushed back or consolidated. Cargo operators also reported delays, forcing some pharmaceutical shippers to trigger costly contingency plans. Under EU Regulation 261, weather is considered an “extraordinary circumstance”, so financial compensation is unlikely. Airlines must, however, still provide meals, accommodation and re-routing or refunds. Travellers holding tight onward connections are being advised to add at least two hours’ buffer in the coming week and to check carrier apps frequently for gate changes. Corporate travel managers whose mobility programmes route staff through Zurich have already issued push alerts reminding employees to keep expense receipts and, where possible, to book early-morning departures that are less exposed to afternoon storm build-ups. For Zurich Airport, the episode is another warning about climate-related volatility. The operator said it is reviewing lightning-alert protocols and exploring whether a modest extension of the night-curfew waiver — already permitted for medical or military flights — could help clear backlogs when extreme weather hits. For now, though, travellers should be prepared for a few more days of “rolling” delays as schedules re-stabilise.
Source: AirHelp
