Overview
- The 12–14 November geomagnetic storm lasted about 42 hours, peaked at G4 intensity, and was the strongest of 2025 and the second‑most powerful in five years, according to Russian research institutes.
- Researchers report 2025 could register the highest number of strong (G3+) geomagnetic storms in a decade, with 61 storms logged by 13 November, including two at G4.
- Moscow is under a yellow weather alert after storm‑force gusts reached 15 m/s Friday morning at Sheremetyevo and Vnukovo, with authorities urging caution and advising against parking near trees.
- A cold front is forecast to turn rain to wet snow in the capital region on Saturday, with icy roads and overnight frosts down to −6°C, and forecasters expecting nearly a third of the monthly precipitation and a 3–4 cm snow cover.
- Northwest regions face harsher conditions, with regional hydromet centers warning of gusts up to 25–28 m/s, heavy snow, blizzards, ice accretion and difficult travel in places like Murmansk Oblast.