In roughly 24 hours we were able to gather 12 gallons of sap! Not the high flow for a single day but certainly nothing to complain about!
Sap begins to flow as soon as temperatures fluctuate above and below the freezing point. Typically this means day time temps are above freezing and night time temps are below freezing as days tend to be warmer than nights. However, if you have a really cold day where it is below freezing followed by a warm night, where it is above freezing, sap will flow!