First the good news: Solar Cycle 24 will peak in May 2013.
The bad news: Solar Cycle 24 could peak with the lowest peak sunspot number (90) of any cycle since 1928!
The NASA site goes on to talk about the “Carrington Event” of 1859. This solar flare, seen by astronomer Richard Carrington took place duirng a below-average solar cycle. The resulting solar flare electrified transmission cables, set fires in telegraph offices and produced spectacular Northern Lights. A similar storm today could cause $1 to 2 trillion in damages that would require two to 10 years to fix.