What happened
Between May 8 and 11, 2024, at least eight coronal mass ejections left the sun toward Earth. On May 10, NOAA's Space Weather Prediction Center observed G5, or extreme, geomagnetic storm conditions. Auroras were seen far to the south, satellites experienced increased drag, and NOAA later described it as possibly the strongest storm of this century, while noting it did not match the 1859 Carrington Event.
Why it matters
NOAA's own scale warns that G5 storms can cause widespread voltage-control problems, collapse some grid systems and damage transformers, and that storms of this strength occur a few times in a typical eleven-year solar cycle. In 2024, operators managed it. A larger storm, or a less fortunate one, is a matter of when, not if.
What it means for a family estate
The risk is not the storm but the long outages that could follow damage to large transformers, which are slow to replace. Styrkholm estates plan for that with independent power, surge protection, shielded spare electronics and mechanical backups for water and heat. Read our full guide to solar storms and EMP.
Briefings summarize public reporting and official sources linked above. Where reporting is preliminary, we say so.