Karen, thank you for your kind words. If your plants are in the pip stage, they should be fine, even without the snow cover. It's when they start growing and putting up stems that they get damaged. We don't get any prolonged snow cover here, and my older plants with pips are fine, even after we've had temps on some days that don't get above freezing, and wind chill factors of 0 degrees.
I'm happy to report that the stems I mulched with pine straw weren't damaged from our recent temps down to 12 degrees and barely above freezing temps, nor the snow/sleet/freezing rain that we've had recently.
I have noticed that my older plants have adjusted to being in this zone, and they don't start growing until the appropriate time. It's the new tubers from Adelman's, Fina, and GH Wild that have lost their minds and try growing during the winter, LOL. Hopefully, they'll settle down and realized they must stay pips during the winter, or die.
Mary,
I hope some warm weather comes your way soon.