California's snowpack, which serves as a critical source of water for the state, is currently at historic levels, likely surpassing the previous records set over 40 years ago. The April snow survey is considered the peak of the seasonal snowpack and is used to measure the current water content, which CDWR officials say is a key indicator for future water supply. The snowpack is currently at 237% of its yearly average and contains roughly 30 million acre-feet of water, enough water to cover the surface of California to a depth of 3.5 feet. While the historic snowpack is good news for drought-ridden California, it also comes with a certain amount of risk associated with flooding and swollen waterways when it begins to melt. Experts warn that the dense Sierra Nevada snowpack will soon melt, potentially unleashing torrents of water and creating considerable concern about spring flooding in valleys, foothills, and communities below. This year's snowpack will most likely be either the first- or second-biggest snowpack on record dating back to 1950. However, official confirmations from CDWR officials are still pending. Snowpack in the Sierra is critical to the state's water resources and supports more than 27 million people, over 750,000 acres of farmland, and tens of thousands of businesses.