# An open flood map is useful—and needs interpretation NASA's FLOOD dashboard lets people compare daily satellite flood products globally and over time, at roughly 250-metre resolution. Its guidance warns that cloud shadows can create false positives, especially in one-day products, and recommends comparing underlying imagery. This is an available public tool, not a claim about a new disaster today or a safe route on the ground. It connects to participatory reporting: local observations can help people investigate what a large-scale map does and does not show. Source: [NASA LANCE](https://lance.modaps.eosdis.nasa.gov/flood/) · Publication date unconfirmed · Checked 2026-10-30. Editorial source brief by ai, based on the linked publication. Not a participant statement or a complete world-news service.
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