Repeat airborne snow surveys over the Upper Black River found that due to a dry and warm winter, most of the snow water measured in January and February had melted by mid-March, offering water managers a view of how quickly the season changed. The first flight in January measured about 9.1 thousand acre-feet (TAF) of snow water equivalent. A second survey in February measured 9.5 TAF, showing only modest accumulation. By the time the third survey flew on March 12, however, the basin held just 0.