 In September 2013, a cold weather system slowly moved across Boulder County, causing unprecedented rainfall and devastating floods. Data for this storm was collected using various instruments that help measure the causes and impacts of events like this. These data help us predict future floods and help us understand how natural disasters impact society. Geostationary operational environmental satellites, or GOES, 13 and 15, collected real-time imagery data as the storm gained momentum and allowed the weather service to issue and advance severe weather warning for Boulder County. Rain gauges, part of the National Weather Services Network, collected and measured the amount of rain that fell during the entire storm. Boulder County averages just over 20 inches of precipitation per year. This storm system caused over 17 inches of rain in only eight days. River discharge stations, managed by the United States Geological Survey, or USGS, measured and recorded the volume of water flowing through Boulder Creek during the storm. The unrelenting rainfall caused Boulder Creek flow rates to surge rapidly. Boulder Creek at North 75th Street recorded a peak discharge of 8,400 cubic feet per second. That's equal to 62,836 gallons of water per second. NEON used LiDAR, or Light Detection and Ranging, to scan the Earth's surface before and after the storm, allowing the measurement of erosion and sedimentation, among other things. The rain and flooding eroded as much as 1,000 years worth of weathered rock and soil from the Boulder County foothills. NEON will collect and provide data like this and much more for 30 years. This data will help us better understand changes in our landscape, how we drive that change, and how that change impacts our lives.