Here is more info on solar flares.
The Classification of X-ray Solar Flares
or "Solar Flare Alphabet Soup"
A solar flare is an explosion on the Sun that happens when energy stored in twisted magnetic fields (usually above sunspots) is suddenly released. Flares produce a burst of radiation across the electromagnetic spectrum, from radio waves to x-rays and gamma-rays. [more information]
Scientists classify solar flares according to their x-ray brightness in the wavelength range 1 to 8 Angstroms. There are 3 categories: X-class flares are big; they are major events that can trigger planet-wide radio blackouts and long-lasting radiation storms. M-class flares are medium-sized; they can cause brief radio blackouts that affect Earth's polar regions. Minor radiation storms sometimes follow an M-class flare. Compared to X- and M-class events, C-class flares are small with few noticeable consequences here on Earth.
This info was taken from http://www.spaceweather.com/glossary/flareclasses.html?PHPSESSID=lh2v2gddgchmusplmh6c4rspa7
These solar flares can be very dangerous. Another reason we need to be prepared. If one takes out the power grid, it could be a year or more before the power grid is up and running again. Think about all the impacts of no power.
Just wanted to give some awareness to the risk of solar flares and their possible impacts to the Earth and the power grid. Some things to think about. It is NEVER too late to start preparing for the future."Don't be scared, be prepared"
Prepper Chris
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