I have seen them quite a few times here in PA
The first was somewhere around 10-12 years ago.
It was right after 9/11 in the fall.
I was with one person on the back roads or Ephrata, not much lights around.
The whole sky, I mean the whole sky was bright, deep dark reddish pink.
I thought it was the end of the world for a split second, in the moment.
Didnt know what it was, even thinking it was like a red dawn of sorts and we were being attacked or something.
You could see the colors shifting and it was spreading fast.
It lasted for a good 10 minutes or more.
The second time was maybe just a year or two or three after, and it was at Harrisburg.
We were on the turnpike just coming to the city.
This time the sky was deep dark green and was getting brighter and lighter turning into blue.
Was with 3 or 4 other guys and we thought it was from the city lights and from the statue
But the colors lasted maybe 3-5 minutes.
As we were passing the city, we knew it was not light from there and realized what it was.
The third time I was hearing that there may be a chance to see some,
and it was about 3-5 years ago. We were out and when we got home,
we barely saw a whisper of some light deep reds and it moved fast.
Possible 1-2 minutes of just a faint glow.
If I recall correctly I may have seen that slight whisper once more a couple years ago.
I believe each time was in the 9pm range or so.
I am still amazed those first two times I saw it.
I know people go each year to alaska just to witness and rarely see them,
So it is a shock to get to see them as brilliant as I saw them twice here in PA