GUIDES & GLOSSARY

Plain-English guides for AvGeeks and travelers

Aviation weather, time zones, and trip prep — explained without the jargon wall.

MBAR What's New in the Menu Bar: Weather Alerts, a Better First Run, and a Built-In Map The Mac app adds proactive weather alerts, a guided first-run walkthrough, and a dedicated Airport Map screen. LIVE NTFY Mute Weather Alerts, Airport by Airport Weather Alerts are no longer all-or-nothing — a new per-airport toggle for anyone who only wants notifications for a few of their saved airports. LIVE WTCH AvClock Is Now on Apple Watch Live airport times and weather on your wrist, plus five watch face complications and tap-through navigation. LIVE MTR How to Read METAR and TAF Reports (Plain-English Guide) A plain-English breakdown of METAR and TAF aviation weather reports — what each part means, and how to read one in under a minute. LIVE MAC Heliports, the Mac Menu Bar App, and Smarter Search What shipped next: heliports, a native Mac app, and city/state search — release notes, not a stub topic. LIVE HIST How AvClock Started: A World Clock Built Around Airports, Not Cities Why AvClock treats airports as the unit of time instead of cities, from the very first release. LIVE
ZLU Zulu Time Explained: Why Aviation Runs on UTC Instead of Local Time Why aviation runs on one global clock instead of local time zones — and how AvClock's LOCAL/Zulu pinned rows make that easy to track. SOON
ICO ICAO vs. IATA Codes: What's the Difference and Why Airports Have Both Two codes, two purposes — a clear breakdown of why every airport has both, and when each one is used. SOON
CAT What Does VFR, MVFR, IFR, and LIFR Actually Mean for Your Flight? A traveler-facing companion to the METAR/TAF guide, for anyone who's ever wondered what those four letters mean for their flight. SOON
TRIP The Ultimate Pre-Trip Checklist: Currency, Plugs, Time Zones, and What Else to Check Before You Fly Everything worth checking before you land somewhere new. SOON
NTM What Is a NOTAM? A Plain-English Guide for Everyone A real aviation term, demystified. SOON