Turbulence Maps Explained: What Live Trackers Really Show

Search for a turbulence map or tracker and you will find pages that look like weather radar: colour washes over an ocean, dots along the coasts, a "live" badge in the corner. They are useful. They are also widely misread, because almost none of them show turbulence happening right now. Most show a forecast, a set of pilot reports from the last hour or two, or a blend of the two.

This guide explains where turbulence maps get their data, how to read one, what they cannot tell you about your own flight, and which free maps are worth bookmarking. There is nothing alarming in any of it: the same maps are what crews and dispatchers plan around every day, which is why a bumpy patch on a map so rarely turns into a bumpy patch in the cabin.

The short version: a turbulence map is either a forecast (a model's best estimate for a time window and an altitude), a report (pilots saying what they felt, at a point, in the past), or a nowcast (the two blended and refreshed every few minutes). "Live turbulence radar" is not a real thing: weather radar sees rain and storms, not the clear-air turbulence that causes most bumps at cruise.

Where turbulence maps come from

Every turbulence map you will find online draws on three kinds of data.

1. Forecast models

The backbone of almost every map is a forecast model. In the United States it is NOAA's Graphical Turbulence Guidance (GTG), which turns wind, temperature and terrain data into a turbulence estimate for each altitude layer. The FAA describes GTG as running hourly, with forecasts out to about 18 hours. The public version lives on the Aviation Weather Center's GFA tool, with layers every 3,000 feet from FL030 (3,000 ft) to FL300, then every 6,000 feet up to FL480.

Outside the US, the global equivalent is the World Area Forecast System (WAFS), produced by the London and Washington world forecast centres. Its turbulence grids cover the whole globe at a handful of flight levels (FL140 to FL450) in 3-hour steps out to 36 hours, and the AWC shows them on a public WAFS viewer. The classic "significant weather" chart that pilots carry comes from the same system: those scalloped areas marked with a base and top altitude are the forecast moderate-or-worse turbulence zones.

Both models express turbulence as EDR (eddy dissipation rate), the industry's standard unit for how turbulent the air is, independent of the aircraft. The same patch of air feels different in a small regional jet and a wide-body, which is why the official thresholds come in three weight classes. For a typical medium airliner (most narrow-bodies), the AWC's scale is roughly: light from EDR 0.15, moderate from 0.20, and the two higher bands (from 0.44 and 0.79) are the ones crews actively plan around. Much of the colour you see on a map is the light band.

2. Pilot reports (PIREPs)

The dots and symbols on a map are usually pilot reports: a crew radioed in what they felt, where, and at what altitude. They are real observations, which makes them valuable, but each one is a single point in the past. The AWC's map shows reports from the last 90 minutes by default, and you can widen that to 12 hours. A cluster of "light chop" reports along a jet stream tells you the model got it right; a lone "moderate" report from three hours ago may describe air that has long since moved on.

Airlines also share automatic EDR readings from their aircraft through IATA's Turbulence Aware platform, which pools reports from more than 30 carriers in near real time. That data stays within the airlines and their partners, so it is not on public maps, but it is one reason crews often know about a rough patch before you do.

3. Nowcasts

The newest kind of map blends the first two. NOAA's GTG Nowcast (GTGN), which went operational on aviationweather.gov in July 2026, updates every 15 minutes over the continental US. It takes the short-range GTG forecast and corrects it with the latest pilot reports, automated aircraft EDR data, radar-derived turbulence near storms, lightning and surface observations. It is the closest thing to a live turbulence picture, and so far it exists only for the US.

Is there such a thing as live turbulence radar?

No, and it is worth knowing why. Weather radar, on the ground or in the cockpit, works by bouncing a signal off water droplets. It is excellent at finding rain and thunderstorms, and the turbulence inside and around storms does correlate with how heavy the rain is. But clear-air turbulence, the kind you meet near jet streams at cruise with blue sky outside, has no droplets to reflect. NASA's own summary is blunt: this turbulence "normally cannot be seen", and onboard weather radar cannot detect it.

So a "turbulence radar" page is either showing you precipitation (a storm map, which is useful in its own right) or it is a forecast map with a dramatic name. Our article on whether pilots can see turbulence on radar goes deeper on what the cockpit actually sees.

How to read a turbulence map

Four things decide whether a map tells you anything about your flight.

Altitude. Turbulence is layered. A map set to FL300 (30,000 ft) can show a long orange band while FL360, where your flight actually cruises, is calm. Always check which level the map is showing and compare it with a realistic cruise altitude for your aircraft and sector. Short flights cruise lower; long-haul flights climb through the levels as fuel burns off.

Time. Forecast maps have a valid time, often shown as "+6h" or a clock. The band you are looking at is for that hour, not for now, and not necessarily for your departure. Pilot reports have an age. A report from 20 minutes ago is current; one from 4 hours ago is history.

Scale. Colour scales vary between sites, but underneath they are EDR, and the thresholds above are the ones to keep in mind. On most maps, the first colour step is light turbulence, which feels like a car on a slightly rough road. Moderate is typically the level where the seatbelt sign comes on and drinks service pauses. Anything above that is rare enough that crews actively plan around it, and our turbulence severity levels guide explains what each band feels like.

Route. Maps show weather, not flight plans. The straight line a consumer site draws between two airports is rarely the track the crew files, and on a day with a bumpy jet stream the dispatcher may route around it or choose a different altitude. That is the main reason a map can look worse than your flight turns out to be.

The turbulence maps and trackers worth knowing

Start with the official sources, which are free, then the consumer sites that repackage them (a few charge for the full map).

Aviation Weather Center, turbulence tab. NOAA's own GTG forecast, pilot reports, G-AIRMET turbulence advisories and SIGMETs, plus the GTG Nowcast since July 2026. Best coverage for US flights, and the source most other sites quote.
AWC WAFS viewer. The global forecast grids at the main cruise levels. The right place for transatlantic, transpacific and other international routes.
Turbli. World turbulence and thunderstorm maps which, by its own description, draw on NOAA GTG and refresh about every 6 hours, alongside its route checker. Polished and easy to read.
ZeroTurb. A web map that layers a global forecast from ECMWF's open data (every 6 hours, FL100 to FL450) with NOAA pilot reports refreshed every 15 minutes and lightning. Its "live feed" is the latest pilot reports from the past 3 hours, which is a fair description of what "live" can mean.
Windy. Known for wind maps, it also has a clear-air turbulence layer with named categories from light upward; its altitude slider stopped at FL300 when we last checked.
Flightradar24. Its icing and turbulence layers are forecast overlays for Business subscribers, not something it measures from the aircraft it tracks.
Turbulence Forecast (turbulenceforecast.com). NOAA-based maps, with the interactive world map reserved for subscribers.

We compare the main consumer tools in more detail, including where each one fits best, in our turbulence forecast tools comparison.

What a map cannot tell you

A map shows the air. It does not know your flight. Specifically, it cannot tell you:

which altitude you will be at over each part of the route, which changes through the flight;
when you will be there, so which forecast hour applies to which stretch;
what the crew will do about it, since a forecast band is exactly what dispatchers route around;
how it will feel in your seat, which depends on the aircraft's size and where you are sitting (our best seats to avoid turbulence guide covers that).

That gap is why Turbcast does the flight-level work for you: you enter a flight number or route, and it samples the forecast along the path at a realistic cruise altitude for the aircraft, overlays the pilot reports and advisories, and gives you a plain-language verdict for each stretch of the flight. It uses NOAA GTG for US flights and physics-based calculations on live upper-air data elsewhere. Afterwards it grades its own forecasts against pilot reports, with the record published on our accuracy page and explained in how accurate is Turbcast. The paid briefings include a route map for most flights, so you still get the picture, drawn for your flight.

Using a map before you fly, calmly

If you are a nervous flyer, a turbulence map can help or hurt depending on how you use it. A few habits that keep it on the helpful side:

Check once, the day before or the morning of. Forecasts firm up in the last 24 hours. Refreshing every hour for a week only feeds the worry; the air will not have decided yet. (For the big seasonal picture, see when turbulence is worst.)
Look at the right level and the right hour. Most of what looks dramatic on a map is at a different altitude or time from your flight.
Expect some light bumps; file the rest under "crews already know." Turbulence is uncomfortable, not dangerous, and every band on the map was in the dispatcher's briefing before it was in yours.
Keep your seatbelt fastened when seated, whatever the map says. It is the one thing that makes a real difference to how any flight feels.

For the full picture on a specific flight, check it on Turbcast and let the forecast do the reading for you.

FAQ

Is there a live turbulence map?

Not in the way the word suggests. The closest thing is NOAA's GTG Nowcast, which blends the short-range forecast with fresh pilot reports and aircraft data every 15 minutes over the US. Everywhere else, "live" means the latest pilot reports (usually the last 1.5 to 3 hours) drawn over a forecast that updates every few hours.

Is there a turbulence radar?

Not for the bumps that matter at cruise. Weather radar shows precipitation, so it finds thunderstorms and the rough air around them, but it cannot see clear-air turbulence, which has no rain to reflect. Pages called "turbulence radar" are forecast maps or storm maps with a dramatic name.

What does the colour scale on a turbulence map mean?

Underneath, it is EDR, the industry's turbulence unit. For a typical airliner, the light band starts around EDR 0.15, moderate around 0.20, and anything higher is uncommon enough that crews plan around it. Different sites colour the bands differently, so check the legend.

Why does the map look bumpy but my flight was smooth?

Usually one of three reasons: the map showed a different altitude from the one you cruised at, a different hour from the one you flew, or the crew routed around the band. Maps show weather, not flight plans.

What is the best turbulence tracker, and which map is most accurate?

The official NOAA and WAFS products are the source for almost all of them, so the consumer maps mostly differ in how often they refresh and how they draw the data. For your own flight, a per-flight forecast that samples the right altitude along the route tells you more than any map, and the only way to judge accuracy is a published record of forecasts against pilot reports.

The takeaway

Turbulence maps are forecasts, pilot reports and, increasingly, a blend of both. None of them are radar, and none of them know your flight plan, your altitude or your timing. Read them at the right level and the right hour, treat the colours as "crews already know," and keep your belt on when seated. For the rest, let a per-flight forecast do the reading for you.