MN Jake - this year is mostly uncharted territory. On my silvers once they flower the sap normally peters out pretty fast. However.... in 2015 (another bizarre year, and the closest to this year I've seen, at least in my area) I collected more sap after they flowered than I did before! Was real excited too because I didn't detect any buddiness as I boiled. HOWEVER, the longer it went, the more "ropey" the syrup became (search this site if you don't know what that is), to the point where it became unusable.
What's the same between 2015 & 2017: The best sap-flowing weather seems to be after the buds have opened.
What's different between 2015 & 2017: We got a better freeze, just a smidge earlier in the flowering process this year. Friday night was a pretty good freeze, and that usually sets the buds back. At least it does if the buds haven't really opened yet! Don't know what will happen with these flowers.
So, my take: the trees will definitely restart. You're going to have a lot of sap this week & next. The only question is: will it be ok? And unfortunately we might not know that until we get it processed down.
Dan
-15 years sugaring and counting - hoping to create a tradition my kids will always remember
-400 taps, mostly buckets (Silver Maples + a few Boxelders just for the heck of it)
-Custom-built 2x6 evap with Smoky Lake Maple raised flue, boiling in dad's old farm granary, now converted to sugar shack
-Cobbled-together RO with XLE4040 membrane
-New in 2021: experimenting with 3/16 tubing & a Shurflo pump.