Your Flight
We analysed more than 19,000 data points along your route from Charles De Gaulle, Paris (Roissy-en-France, Val-d'Oise) to Tokyo Haneda International Airport, Tokyo.
Japan Airlines
CDG
HND
JL46
Japan Airlines
FLIGHT
JL46
CDG
Charles De Gaulle
17:20
05 Mar
Now: --:-- CES
13 h 30 m
HND
Tokyo Haneda International Airport
14:50
06 Mar
Now: --:-- JS
Aircraft: a35k
Altitude: 39,000ft (11.9km)
Distance: 5,241 nm
Duration: 13 h 30 m
AIRCRAFT
a35k
ALTITUDE
39,000ft
DISTANCE
5,241 nm
DURATION
13 h 30 m
Times and gates subject to change. Verify with airline.
Turbulence Comfort Along Route Comfort View
Comfort Score: Combines turbulence probability (GTG forecast) with intensity (ZTI analysis).
High scores indicate both high probability AND high intensity turbulence.
Smooth
Light
Moderate
Severe
Flight Smoothness Score
9.3
/10
Smoothness
Smooth Flight
71%
Smooth
28%
Light
1%
Moderate
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AI-Powered Flight Briefing
📊 19,000 data points analyzed
HIGH Confidence
Your Journey Beta
A brief bumpy patch may occur during cruise. It's nothing to worry about - just keep your seatbelt fastened.
Your route takes you over the Urals and crossing the North Pacific Ocean – these areas can sometimes cause light turbulence.
Smooth Flight
We're expecting smooth conditions throughout your flight. You can sit back and relax.
Takeoff
Takeoff should feel smooth, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 35 knots. These winds are favorable and may get you there a few minutes early.
Landing
Landing should feel a bit bumpy on descent with typical approach conditions.
You're in Safe Hands
If you feel nervous at any point, remember that turbulence is expected, safe, and part of normal flying. The crew is monitoring everything, and the aircraft is built to handle far more than anything you will feel. Have a safe and calm flight.
Relaxation Exercises
ZeroTurb Index (ZTI): Powered by our proprietary turbulence prediction algorithm combining atmospheric Richardson Number, wind shear analysis, temperature gradients, and geomagnetic activity for precise, real-time forecasting. Learn more
Flight Timeline 13h 30min
Maximum turbulence expected per segment
Takeoff
Smooth
0:30-1:00
Smooth
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Light
4:00-4:30
Smooth
4:30-5:00
Light
5:00-5:30
Smooth
5:30-6:00
Smooth
6:00-6:30
Smooth
6:30-7:00
Smooth
7:00-7:30
Smooth
7:30-8:00
Smooth
8:00-8:30
Smooth
8:30-9:00
Smooth
9:00-9:30
Smooth
9:30-10:00
Smooth
10:00-10:30
Smooth
10:30-11:00
Smooth
11:00-11:30
Light
11:30-12:00
Light
12:00-12:30
Light
12:30-13:00
Light
Landing
Moderate
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Turbulence Metrics ZTI and EDR (scaled)
ZTI Scale
Smooth
<12
<12
Light
12-30
12-30
Moderate
30-45
30-45
Severe
>45
>45
EDR Scale
Smooth
<6
<6
Light
6-24
6-24
Moderate
24-42
24-42
Severe
>42
>42
Airport Weather
Departure
CDG
12°C
(Now)
NSC
•
10 kt
•
VFR — Clear conditions, no delays expected
Arrival
HND
11°C
(Now)
Few
•
10 kt
•
VFR — Clear conditions, no delays expected
🌤️ Afternoon Flight
Afternoon flights may encounter more turbulence due to thermal activity as the sun heats the ground, creating rising air currents.
Wide-Body Aircraft (Large)
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
Looking for more detailed analysis?
Data Sources & Our Approach
ZeroTurb's Custom Algorithm: We've developed a proprietary
ZeroTurb Index (ZTI) algorithm that combines three meteorological indices weighted by their
predictive accuracy. This gives you transparent, passenger-focused turbulence probability instead
of vague categories.
This forecast integrates data from:
- ECMWF Open Data - Global atmospheric model (wind/temperature at 13 flight levels)
- NOAA Aviation Weather Center - Pilot Reports (PIREPs), SIGMETs/AIRMETs, TAFs
- NOAA Space Weather Prediction Center - Aurora forecasts for polar routes
- AviationStack API - Flight schedules and airline operational data
Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.
How accurate are turbulence alerts? Alerts are based on updated forecast models and pilot reports, and can change as departure approaches.