I have a Jamie Roy that will be my winter ride. For bad weather, I use profile airwing bullhorns that are slightly wider than my usual drops. I find that the handling is a bit more stable with the wider bars. Also, I plan on keeping my current wheelset with slicks for the rainy days (with fenders), and then setting up my backup wheels with a bigger cog and some knobby or studded tires for snow. That way, I can switch wheels as quickly as the weather changes.

You can raise/flip your stem or get a riser stem.