Storm Isha, the ninth named storm to hit the UK this season, is wreaking havoc across northern Europe with hurricane-force winds, causing travel disruptions and power blackouts. The Met Office issued a yellow weather warning for the UK, which was set to end at midday on Monday, after strong wind gusts of up to 99 miles per hour were recorded. Northern France, the Netherlands, and parts of Norway are also facing alerts, while flood and avalanche warnings have been issued for the west coast of Norway.
As of Monday morning, approximately 235,000 homes, farms, and businesses in Ireland were without power, with counties like Mayo, Galway, Roscommon, and Kerry being hit the hardest. Meanwhile, in the UK, more than 300,000 customers have been reconnected, but around 70,000 are still without power. However, it is important to note that wind power, which comprises around 50% of the UK's energy mix, has seen a surge during the storm, offsetting some of the power disruptions.
Following closely on the heels of Storm Isha is Storm Jocelyn, expected to bring strong winds and heavy rain on Tuesday and Wednesday. These consecutive storms highlight the impact of global warming, not only on the intensity of heatwaves (with 2023 being the hottest year ever recorded), but also on hurricanes and typhoons. The warmer water and moister air provide additional fuel for these storms, leading to more extreme weather events.
Europe's extreme weather conditions come after the US experienced a deep freeze, which caused power grid failures and travel disruptions due to heavy snow and icy conditions. Additionally, the freezing temperatures impacted oil production, refining capacity, and natural gas flows in the US.
The effects of Storm Isha can be seen in cities like Amsterdam, where Schipol airport had to cancel approximately 130 flights and warn of delays due to wind gusts exceeding 100 kilometers per hour. Although power has been restored to most of the 68,000 affected customers, the outage in the Dutch capital also halted tram services. Flights and rail services faced severe disruptions in the UK and Ireland, while Oslo's public transport operator advised against non-essential travel due to rain and icy roads.
The energy market has also been affected by Storm Isha. Wind generation soared during the storm, leading to a drop in energy prices across the region. Benchmark European gas futures fell by as much as 6.4%, reaching the lowest level since July. In Germany, intraday power prices even turned negative, dropping to -€14.88 per megawatt-hour when supply surpassed demand. Germany's wind power production reached as high as 48,146 megawatts, not far from its record of 53,022 megawatts set in December. Nordic wind power output also hit a record of 25,723 megawatts.
Despite the disruptions and power outages, Storm Isha will be followed by a period of warmer weather across the region. London is expected to reach 13.5 degrees Celsius on Tuesday, while Paris will climb to 14 degrees Celsius on Wednesday. The western Mediterranean will experience even higher temperatures, with Madrid reaching 18.5 degrees Celsius on Friday. As the storm passes, the affected areas will need to recover and restore their infrastructure while preparing for potential future extreme weather events.