[[[they're]]] preppin' the sheep: How to Prepare for a Solar Flare Hitting Earth (Because It's Probably Going to Happen)

The charged particles from the sun entering Earth’s magnetic field would cause geomagnetic storms, lighting up the sky with a brilliant aurora borealis that would be visible all over the Earth. Beautiful, for sure. But massively disruptive to our power system.

It ultimately wasn’t disastrous in 1859, but in 2021 when everything relies on power and data, a massive outage and the loss of internet (undersea data cables are particularly vulnerable) would throw the world into considerable chaos. The power grid would likely go down, as long-distance power lines would be overwhelmed with electrical currents, leading to transformers exploding. GPS systems would be useless, as satellites would be shorted out. Planes might crash into one another, as they’re essentially flying blind. The internet could be down for months, and estimated financial losses would likely be in the trillions.

https://lifehacker.com/how-to-prepare-for-a-solar-flare-hitting-earth-because-1848076402

there's more interdasting bits in the body, but if that ain't a warning i don't know what is!