Earth Will Only Have 12 Hours To Prepare For Massive Solar Storm
The worst case scenario is based on the Carrington event of 1859, which caused solar-flare related x-rays and radiation storms. In 2015, a similar event could cause the national grid to fail, satellite operations to shut down, increased radiation on flights and upset to electronic systems.
http://news.yahoo.com/earth-will-only-have-12-hours-to-prepare-for-081651736.html
I was figuring 36 hrs.
Have you heard any more from the senator who is trying to harden the grid?