Observed arrival · 2026-09-23
Tidemarker reads the pressure trend, not just the dial
A browser-based pressure interpreter sits alongside a practical guide to reading a home barometer, identifying clouds, and keeping weather observations.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Home weather observers using a barometer
- Worth noticing
- The interpreter clamps inputs to 900–1080 hPa and applies conventional three-hour pressure-tendency bands.
Field notes
The interpreter groups three-hour pressure changes into conventional bands, from steady to very rapidly rising or falling. Its guide explains how to set an aneroid barometer against a nearby official station and why altitude affects the reading. It also cautions that the bands describe rate rather than weather, and treats the wind-based pressure-centre estimate as approximate. A reference link points to the International Cloud Atlas.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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