ℹ️ Level sensors are not logged to the database, so there is no history to chart — these are the values the sensor is reporting right now.
📅 Historical Data — Custom Range
Pick a date range and (optionally) a single station. The CSV will contain every 15-min reading captured in that window, with both raw and display-converted values.
⚠️ Storm Watch
Rapid pressure drop detected — possible incoming storm front.