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NOTAM Alerts

Automatic tracking of new, revised, and cancelled NOTAMs for your watchlist airports, with instant alerts.

What Is a NOTAM?

A Notice to Air Missions (NOTAM) is a time-critical notice distributed to pilots and dispatchers, alerting them to conditions that could affect the safety of flight or the usability of an airport, runway, navaid, or piece of airspace. Unlike TAF and METAR, which describe the weather, a NOTAM describes changes to the aviation infrastructure itself: a closed runway, an unserviceable ILS, a GPS outage, a crane near the approach path, or newly activated airspace restrictions. Missing an active NOTAM can mean briefing for an approach that no longer exists, or planning around a runway that is not actually available.

AeroSentinel's NOTAM Alerts feature continuously monitors the airports in your watchlist for new, revised, and cancelled NOTAMs, and generates an alert card the moment one appears. It's the same alert pipeline that already handles TAF and METAR changes, so NOTAMs show up in the same Alerts feed and trigger the same desktop and in-app notifications.

New, Revised, and Cancelled: Tracked Separately

Every NOTAM has a lifecycle. A new NOTAM (NOTAMN) is a fresh notice that did not exist before. A revision (NOTAMR) supersedes an earlier NOTAM, usually to extend or shorten a validity period or correct its wording; AeroSentinel shows exactly which earlier NOTAM number it replaces. A cancellation (NOTAMC) means the condition described by an earlier NOTAM no longer applies, for example a runway reopening. AeroSentinel classifies every alert into one of these three categories, so at a glance you know whether something new just appeared, an existing restriction just changed, or a restriction was just lifted.

A Quiet Start, Then Real-Time Tracking

A busy international airport can have well over a hundred NOTAMs active at any given time, mostly routine items like taxiway lighting notes or minor equipment status. The first time AeroSentinel starts watching an airport, it silently records the NOTAMs that are already active without generating a wall of alerts. From that point forward, only genuinely new activity (a new NOTAM, a revision, or a cancellation) produces an alert, keeping the signal-to-noise ratio high even for high-traffic airports.

Colorized, Readable NOTAM Text

Raw ICAO NOTAM text is dense and abbreviation-heavy. AeroSentinel automatically highlights the operationally significant terms within each NOTAM: closures (CLSD, U/S) in red, navigation aid references (ILS, VOR, DME, PAPI) in orange, GPS and GNSS outage terms in red given how disruptive they are to RNAV approaches, and ongoing work or obstacle notices in amber. It's the same colorized-text approach already used for METAR and TAF, applied to NOTAMs.

Where to See Active NOTAMs

Every airport's detail page has an "Active NOTAMs" tab, alongside "Alert History," showing every NOTAM currently in effect for that airport with its validity window, not just the ones that recently changed. This gives you a complete picture before a flight, not only a stream of recent changes.