Copperman,
There is a co-relation of extreme weather to NG prices, as extreme cold increases NG demand for heating, while extreme hot temperatures increase NG demand for cooling purposes.
The current weather fulfills the criteria as more than 2 ft. of snow is expected to be dumped in the US East Coast. So this should in theory bump up NG prices on Mon open on MCX, and also volatile move can be expected at time of US open (as reality vs expectations will play out)
Let's see what happens....