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(meteorobs) Aurora question
Newbie question from someone who's never seen northern lights:
A recent spaceweather.com e-mail mentions that tonight's possible northern
lights have the potential to be seen at unsually low latitudes. Any idea if
this includes east-central Pennsylvania? Stated another way, should I bother
keeping an eye out?
> AURORA ALERT: An interplanetary shock wave spawned by Monday's powerful
> solar explosion swept past our planet at approximately 2100 UT (2:00 p.m.
> PDT) on Tuesday, Sept. 25th. The solar wind velocity soared from 400 km/s
> to more than 800 km/s in a matter of minutes as the shock wave sped by.
> Earth is still inside the resulting high-speed solar stream and auroras
> are possible tonight even at low latitudes where such displays rarely
> happen. Sky watchers are advised to look for Northern Lights after local
> sunset. Local midnight is usually the best time for aurora spotting but if
> a powerful geomagnetic storm develops bright auroras might be visible at
> any time of the night.
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