Could anyone help me on this "End of the world" type of dream I have had?

Okay so i had this odd dream last night, i had a dream i was in my house and i saw this huge storm coming. I can't remember who, but this one guy said it was the end of the world and then a little while later i was watching it and it happened and i saw this big flash. After word (I am not really a Christian but) i dreamed i was in like a Purgatory and everything was the same but it was like silent hill where it was all foggy and i was in my house still house still. I can't quite seem to remember the rest but that is what i do remember. Any suggestions on what this could mean or anything it was quite a scary dream.