I just brewed a AHS 1554 clone. 1554 is "enlightened black ale" from New Belgium Brewing.
Anyway after I finished, I looked more closely at the liquid yeast vial and it is a lager yeast - Southern German Lager Yeast. Per the website it's best at less than 55 degrees.
I don't have anywhere to store the carboy at that temps. The room where it is located is pretty constant at 68 or just a little less if we get a cold snap. It won't ever be less than 60.
I'm committed now, the blowoff is bubbling nicely, everything looks ok. I'm going to have to just wait and see, but now I'm worried. FWIW the instrucions from AHS, which are pretty detailed, don't say anything about lower frementaion temps.
How big a problem am I likely to have?