Nestled against the rugged backdrop of the Pacific Northwest, life offers a striking visual definition of peaks, valleys, and steady elevation gains. For residents of Washington state, the local geography is defined by rocky beaches, hidden waterways, uninhabited islands, and endless mountain ranges often shrouded in a veil of seasonal fog. During the warmer summer months, outdoor enthusiasts take to the region’s vast trail systems, where waterfall destinations remain a perennial favorite. Washington provides an ideal setting for such exploration, boasting more than 2,900 waterfalls, including the tallest waterfall in the entire continental United States.
Immersion in such a natural environment frequently sparks unexpected connections to professional pursuits. A recent waterfall hike recently prompted fresh reflection on one of the most effective and visually compelling formats in data visualization: the waterfall chart. These dynamic analytical tools serve as powerful mediums for narrative storytelling, offering audiences an immediate and intuitive understanding of an initial baseline, the specific incremental changes that occurred along the way, and the final resulting outcome.
While the data visualization community previously explored waterfall charts during a prior challenge years ago, organizers have announced a fresh look at the format for the current month. Historically favored for financial breakdowns such as sales analyses or cause-of-change evaluations, waterfall charts prove equally versatile across a wide spectrum of modern business applications. Organizations routinely deploy them to monitor human resources headcounts, track subscription metrics, or even chart shifting scores over the course of a competitive sports match.
The unique architectural design of a waterfall chart makes it exceptionally well-suited for live presentations and walkthroughs. During a dynamic presentation, speakers can easily pause to discuss pivotal intermediate bars, addressing the specific drivers within the middle section of the chart before moving on to the final tally. At the same time, these charts offer a clean, uncluttered visual white space that translates exceptionally well into written communications and reports. To explore the full breadth of these applications, organizers are formally inviting data practitioners from around the globe to participate in a brand-new monthly challenge.
The Challenge
The core objective of the latest community challenge is straightforward: share a compelling waterfall chart. Participants have complete flexibility regarding their source material. Analysts may choose to leverage their own proprietary data, utilize publicly available datasets, or simply practice their design skills using a classic example provided by the organizing team. As always, standard professional protocols apply, requiring participants to rigorously anonymize any sensitive information that cannot be shared publicly.
For those who may be relatively new to the format, supplementary resources covering the foundational mechanics of building a waterfall chart and essential design considerations have been made available to the community. Whether contributors approach the task from a strictly corporate perspective or decide to build a lighthearted, narrative-driven chart for fun, the primary goal is to tell whatever story inspires them.
Submissions for the waterfall chart storytelling challenge are officially open and must be submitted through the community platform by August 31st at 5:00 PM Pacific Time. Participants who are seeking targeted feedback or specific constructive criticism on their designs are encouraged to include those precise details within their accompanying commentary to guide peer reviews.
Related Resources
To support community members throughout the design process, organizers have compiled a comprehensive selection of reference materials aimed at mastering the construction and visual refinement of waterfall charts. These curated guides and examples are designed to assist both novice creators and seasoned analysts in maximizing the communicative impact of their visual stories, ensuring that every chart effectively bridges raw data with clear, memorable insights.
