Preuming you mean weather my worst would have been "FTX No Snow". We were scheduled for ski training at Berchtesgaden but there wasn't enough snow. Thus a substitute FTX "No Snow".
We jumped into the Chiemsee area and it commenced to snow as soon as we hit the ground. The next morning we had to dig ourselves out of our poncho tents. It continued to snow for the next fourteen days.
Since you mention Colorado, this was a little before your day.