Saw your post over at 14ers.com also.
Stay out of ANY couloirs right now. The fact that you're at least asking is a good thing but that you're considering climbing something, proves how LITTLE you've researched couloirs in general and ignored what Colorado BC conditions are like right now.
Dude, just because a ridge or couloir has snow on/in it doesn't make it climbable.
Snow right now in the BC is TERRIBLE. If you must
get out, and I do understand the urge, stick to the ridges and DO YOUR HOMEWORK ON THE RIDGE before you venture out.
Don't end up as a popsicle.
Use the following link for information, planning and safety!!!! Front Range ISN'T
looking good right now.
from late Feb/early March on Kelso Ridge.