I decided to take a drive during a big snowstorm the other night and found this bench located on a Dam near my home. It was snowing very hard during this exposure.
Thanks for the comments everybody. During this snow storm snow was literally piling up on my camera...it was not shot from a car. I now determine my very low light/night exposures by guesswork. There was light coming in all around from streetlamps that are on the walkways on the dam. I set my camera at f/8 and just bracketed some exposures...2 min, 4 min and 6 min. When you get into these exposure times it is amazing how small the difference is between the negatives.