A big coronal mass ejection slams Earth's magnetic field and drives currents through long power lines, cooking the giant transformers that hold the grid together. The catch: the risk isn't even — it climbs sharply toward the poles, and a strong enough storm pushes it down into the mid-latitudes. Slide the storm strength and watch the danger march south.
A severe storm is an EMP in slow motion — the grid-down preps are the same. Power, water, comms, food.
The sun can take down the grid from 93 million miles away.
A big coronal mass ejection slams Earth’s magnetic field and drives currents through long power lines, stressing the giant transformers the grid depends on.
This illustrates the reach of a severe geomagnetic storm, not a forecast of one. Real grid impact depends on line orientation, ground conductivity and operator response. The preps are the same as any grid-down: power, water, comms, food.
