On the last towel, I believe I had readjusted the width of the temple and had it pulling the fabric just a bit wider than the threads in the reed, so have put it back where I had originally set it for this width of warp.
On one towel I found the far right selvedge thread torn through, and on the last towel, a weft thread was torn through (above).
A little earlier today I set up the homemade temple as found on The Woolgatherers website. With the weight I had on it, the weaving width was not being kept out quite as far as the warp threads in the reed, but I am using cottolin, not wool. Wool would stretch and give more than the cottolin, and that could be what is making a difference. I will be looking at the homemade temple again, but partway through a towel is probably not the time to change.
Residents of the Northwoods continue to hope for spring, but we know there will likely be a few snowstorms ahead yet. Still, I am looking forward to setting my washtubs out on the lakeside porch and washing raw fleece, sitting out there and spinning, and having all the windows open while weaving. It will be so nice to hear birdsong again, watching for fawns, and keeping an eye out for the odd black bear. There is hope, I spotted two bald eagles sitting in a tree yesterday.