morning surprise

 I know this is the worst photo ever.

At the moment, sunrise is around seven o'clock here, and this morning at seven my brother was outside watering some shrubs before taking his walk. He called to me that the sky was pink and I said it is that way from time to time at sunrise. But then he said there was an orange rainbow and you could see it from the front of the house. Well, I didn't have my contacts in yet, but I went out on the front step to look; I didn't see any rainbow. So, I went to the back door (which is not in back, but on the side of the house), and I saw it, across the street. It was fading, but he said it had been pretty bright. 

Okay, we all know the conditions for a rainbow, I think - I always run outside to look for one after a rain, when the sun is bright somewhere and the clouds are still dark on the other side. But it hadn't been raining. It was dry. And, our rainbows are always in the east, in the back of the house, never across the street, in the west. Not to mention that I never heard of an orange rainbow - mostly orange, he said. 

I can only assume it was due to the aurora, which has been appearing even where we live, a couple of times. Nothing like in northern Europe, but more like a bright pink sky well after dark, at night. So, is this connected to that? It must have to do with the electromagnetic activity.