从spaceweatherlive.com:
Another look at the X1 solar flare and the resulting CME as seen by SOHO/LASCO. A partial halo CME was launched with a clear earth-directed component. Impact expected late 30 October/early 31 October. Strong G3 geomagnetic storm possible this Halloween weekend!
G3 storms can sometimes produce faint auroral displays all the way to Boston, Chicago, Seattle, the northern Plains and northern parts of the Corn Belt.