China Southern Airlines LAX PVG CZ448
China Southern Airlines
FLIGHT
CZ448
LAX
Los Angeles International Airport
23:55
03 Mar
Now: --:-- PS
13 h 50 m
PVG
Shanghai Pudong International Airport
05:45
05 Mar
Now: --:-- CS
Aircraft: b77w Altitude: 40,000ft (12.2km) Distance: 5,624 nm Duration: 13 h 50 m
AIRCRAFT
b77w
ALTITUDE
40,000ft
DISTANCE
5,624 nm
DURATION
13 h 50 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
8.8 /10
Smoothness
Smooth Flight
51%
Smooth
48%
Light
1%
Moderate
Set an alert before your flight Beta
You still have 16 hours before departure. We'll notify you if this forecast changes.
AI-Powered Flight Briefing
📊 20,000 data points analyzed HIGH Confidence
Your Flight

We analysed more than 20,000 data points along your route from Los Angeles International Airport, Los Angeles to Shanghai Pudong International Airport, Shanghai (Pudong).

Your Journey Beta

8 hours 40 minutes into the flight: Some moderate bumps expected.
The crew may adjust altitude or ask you to stay seated during these sections.
The rest of the flight should be smooth.

Your route takes you over the Sierra Nevada, crossing the North Pacific Ocean, and crossing the North Pacific Ocean – these areas can sometimes cause turbulence.

Smooth Flight

We're expecting smooth conditions throughout your flight. You can sit back and relax.

Takeoff

Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 54 knots. These winds may delay arrival by up to 73 minutes.

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
Live data from ECMWF global forecast models • 12 atmospheric pressure levels analyzed • Updated every 6 hours
Flight Timeline 13h 50min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Smooth
3:30-4:00
Light
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Smooth
6:00-6:30
Smooth
6:30-7:00
Smooth
7:00-7:30
Smooth
7:30-8:00
Light
8:00-8:30
Light
8:30-8:59
Moderate
8:59-9:28
Light
9:28-9:57
Light
9:57-10:26
Light
10:26-10:55
Light
10:55-11:24
Light
11:24-11:53
Light
11:53-12:22
Light
12:22-12:51
Light
12:51-13:20
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
Light
12-30
Moderate
30-45
Severe
>45
EDR Scale
Smooth
<6
Light
6-24
Moderate
24-42
Severe
>42

Airport Weather
Departure
LAX
At Departure
14°C (Now)
Scattered • 3 kt • MVFR — Reduced visibility, minor delays possible
Arrival
PVG
Forecast
8°C (Now)
Broken • 8 kt • MVFR — Reduced visibility, minor delays possible
☀️ Morning Flight

Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.

Weather conditions can change. Check again before your flight.
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:

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.