Public Atlas guides and notebookhttps://www.publicatlasdata.com/guides/Practical guides to public data. AI-assisted first edition; review status on each resource.en-usHow to read a reservoir’s percent fullhttps://www.publicatlasdata.com/guides/reservoir-percent-full/https://www.publicatlasdata.com/guides/reservoir-percent-full/Storage and elevation answer different questions. Use both to understand a reservoir.Mon, 28 Sep 2026 12:00:00 GMTlakesLake Travis: put today’s reading in contexthttps://www.publicatlasdata.com/guides/lake-travis-reading/https://www.publicatlasdata.com/guides/lake-travis-reading/Follow a dated TWDB reading from the headline number to its 30-day chart.Mon, 28 Sep 2026 12:00:00 GMTlakesHow to read a NOAA high and low tide charthttps://www.publicatlasdata.com/guides/read-noaa-tide-chart/https://www.publicatlasdata.com/guides/read-noaa-tide-chart/A station, a time zone and a datum make the table meaningful.Mon, 28 Sep 2026 12:00:00 GMTtidesWhy a nearby tide station can differ from your beachhttps://www.publicatlasdata.com/guides/choose-tide-station/https://www.publicatlasdata.com/guides/choose-tide-station/Follow the water connection and station coverage before trusting a nearby name.Mon, 28 Sep 2026 12:00:00 GMTtidesGauge height, discharge and flood stagehttps://www.publicatlasdata.com/guides/gauge-height-discharge/https://www.publicatlasdata.com/guides/gauge-height-discharge/Three different quantities that should never be read as interchangeable.Mon, 28 Sep 2026 12:00:00 GMTriversWhich Susquehanna gauge should you use?https://www.publicatlasdata.com/guides/susquehanna-gauge-selection/https://www.publicatlasdata.com/guides/susquehanna-gauge-selection/Begin with your river reach and confirm the station on the source map.Mon, 28 Sep 2026 12:00:00 GMTriversEPA radon zones versus a home testhttps://www.publicatlasdata.com/guides/radon-zone-home-test/https://www.publicatlasdata.com/guides/radon-zone-home-test/A county-level potential category cannot measure the air inside a home.Mon, 28 Sep 2026 12:00:00 GMTradonWhy a ZIP-area search can return multiple countieshttps://www.publicatlasdata.com/guides/zip-code-multiple-counties/https://www.publicatlasdata.com/guides/zip-code-multiple-counties/The lookup uses Census geography, with boundaries and relationships that need explanation.Mon, 28 Sep 2026 12:00:00 GMTradonBase pay versus locality pay in 2026https://www.publicatlasdata.com/guides/base-locality-pay/https://www.publicatlasdata.com/guides/base-locality-pay/Choose the correct table before comparing grade and step.Mon, 28 Sep 2026 12:00:00 GMTpayA worked GS grade-and-step lookuphttps://www.publicatlasdata.com/guides/grade-step-worked-example/https://www.publicatlasdata.com/guides/grade-step-worked-example/Trace a calculator result to the exact OPM row and column.Mon, 28 Sep 2026 12:00:00 GMTpayHow to verify a Texas county burn banhttps://www.publicatlasdata.com/guides/verify-texas-burn-ban/https://www.publicatlasdata.com/guides/verify-texas-burn-ban/Use the map to find the county, then read the current issuing authority’s information.Mon, 28 Sep 2026 12:00:00 GMTbansWildfire danger versus a legal burn banhttps://www.publicatlasdata.com/guides/fire-danger-versus-burn-ban/https://www.publicatlasdata.com/guides/fire-danger-versus-burn-ban/Weather conditions and legal restrictions answer different questions.Mon, 28 Sep 2026 12:00:00 GMTbansSPC preliminary reports versus NCEI event recordshttps://www.publicatlasdata.com/guides/spc-versus-ncei/https://www.publicatlasdata.com/guides/spc-versus-ncei/Choose the dataset that matches the time window and the question.Mon, 28 Sep 2026 12:00:00 GMThailWhat a hail record can tell you about a propertyhttps://www.publicatlasdata.com/guides/hail-record-property/https://www.publicatlasdata.com/guides/hail-record-property/A nearby reported event is context, not proof of damage at an address.Mon, 28 Sep 2026 12:00:00 GMThailSeptember notebook: lake changes and the next tide windowhttps://www.publicatlasdata.com/notes/2026-09/https://www.publicatlasdata.com/notes/2026-09/A dated look at available September lake readings, plus the coverage and limits of seven NOAA tide references.Mon, 28 Sep 2026 12:00:00 GMTnotesTide-day worksheethttps://www.publicatlasdata.com/resources/tide-worksheet/https://www.publicatlasdata.com/resources/tide-worksheet/Record NOAA reference-station predictions and their limits.Tue, 29 Sep 2026 12:00:00 GMTresourcesBefore you trust a numberhttps://www.publicatlasdata.com/resources/source-checklist/https://www.publicatlasdata.com/resources/source-checklist/Check place, measurement, dates, issuing source and limitations.Tue, 29 Sep 2026 12:00:00 GMTresourcesPublic-data glossaryhttps://www.publicatlasdata.com/resources/glossary/https://www.publicatlasdata.com/resources/glossary/Understand the measurements and reference terms used across Public Atlas.Tue, 29 Sep 2026 12:00:00 GMTresourcesCarolina tide references, side by sidehttps://www.publicatlasdata.com/resources/carolina-tide-stations/https://www.publicatlasdata.com/resources/carolina-tide-stations/Compare four covered NOAA reference stations, their place relationships and source-name differences.Tue, 29 Sep 2026 12:00:00 GMTresourcesWhen a reading is stale or missinghttps://www.publicatlasdata.com/resources/stale-readings/https://www.publicatlasdata.com/resources/stale-readings/A practical decision aid for observation dates, retrieval times, missing values and expired tide windows.Tue, 29 Sep 2026 12:00:00 GMTresources