I like this move too. A weekend to let others see the move and realize the price has a long way to go. I let a few shares go today after doubling my position below 28 recently, but I'm holding for mid/low thirties which look like an easy target if the weather outlook holds.
Someone mentioned earlier about trading around the weather forecast and how ridiculous that is... while I think it can be ridiculous in occasional circumstances, by and large, a lot of money can be made selling before dips caused by warm temps and buying before the cold bursts. you should try it before you knock it!
That is why the coal stocks are such big movers today. Oil helped by closing strong but within the next few weeks major coal producers will announce cutbacks in production to help lower the glut of coal out there. A strong finish from old man winter won't hurt either.