A deep, persistent Arctic pattern has locked Scandinavia into one of its harshest starts to a year in decades, delivering extreme cold to inland Norway and crippling wind power output across Finland.

In central Norway, we’re only 38 days into 2026 but Roros has logged 15 days below -30C (-22F). That threshold has not been reached so frequently this early in the year since 1942, when 21 such days were recorded by early February.

Farther east, the same air mass has exposed a critical (and obvious) vulnerability in Finland’s energy system.

Wind power generation has slumped toward near-standstill as prolonged subfreezing conditions ice turbine blades and force operators to shut down equipment to prevent damage.

According to grid operator Fingrid Oyj, wind farms were producing only a tiny fraction of installed capacity last week, despite Finland’s heavy reliance on wind during winter demand peaks.
https://electroverse.substack.com/p/scandinavia-shivers-wind-turbines