Your Flight
We analysed more than 17,000 data points along your route from Los Angeles International Airport, Los Angeles to Tokyo Haneda International Airport, Tokyo.
KLAX RJTT
Los Angeles International Airport Tokyo Haneda International Airport
Route Information
Departure
KLAX (LAX)
Distance
8,812.4 km (4,758.3 nautical miles)
Arrival
RJTT (HND)
Flight Time
295 minutes (4h 55m)
Flight Profile
Cruise Altitude: 40,000 ft (Flight Level 400)
Route calculated using great circle navigation
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
Comfortable
Noticeable
Uncomfortable
Formula: (Probability × Intensity)
Flight Smoothness Score
8.6
/10
Smoothness
Smooth Flight
46%
Smooth
54%
Light
AI-Powered Flight Briefing
📊 17,000 data points analyzedAdvanced AI-Powered Flight Briefing
Your Journey Beta
Your route takes you over the Sierra Nevada 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 possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 49 knots. These winds may delay arrival by up to 51 minutes.
Landing
Landing should feel smooth 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 ExercisesLive data from ECMWF global forecast models • 12 atmospheric pressure levels analyzed • Updated every 6 hours
Most Common
LIGHT
54% of your flight
Peak Intensity
LIGHT
Normal flight conditions
Route Breakdown (178 zones)
Light
Smooth
Forecast Valid: Mar 03, 12:00 UTC
(Generated: Mar 03, 12:00 UTC)
Flight Timeline 4h 55min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:29
Light
2:29-2:58
Light
2:58-3:27
Smooth
3:27-3:56
Light
3:56-4:25
Light
Landing
Light
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Turbulence Metrics ZTI and EDR
Comparing Two Turbulence Metrics:
- ZTI (ZeroTurb Index): Our proprietary composite metric (0.0-1.0 scale)
- EDR (Eddy Dissipation Rate): ICAO/WMO official standard (m^(2/3)/s scale)
ZTI Scale (Custom)
Smooth
<0.2
<0.2
Light
0.2-0.5
0.2-0.5
Moderate
0.5-0.75
0.5-0.75
Severe
>0.75
>0.75
EDR Scale (ICAO)
Smooth
<0.1
<0.1
Light
0.1-0.4
0.1-0.4
Moderate
0.4-0.7
0.4-0.7
Severe
>0.7
>0.7
Detailed Analysis Below: While flights generally follow these patterns, our advanced turbulence prediction system analyzes real-time weather data, atmospheric conditions, and pilot reports to provide you with precise, route-specific forecasts. Review the detailed metrics and interactive maps below for a comprehensive understanding of expected conditions along your flight path.
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.
Safety First: All commercial aircraft, regardless of size, are engineered and certified to safely handle turbulence. The difference is primarily in passenger comfort - larger aircraft provide a smoother feeling ride, but all aircraft are equally safe.
Important: Aircraft information is based on historical flight data and may not reflect the current assignment.
Airlines may change aircraft types based on operational needs. Always verify with your airline for the most current aircraft information.
Technical Forecast Details Advanced Analysis
Prefer a simpler overview?
Return to Simplified ViewComprehensive Flight Profile Altitude • Wind • Turbulence
Global Winds Forecast ECMWF Open Data Worldwide Coverage
Route-Specific Forecast: Wind data calculated at 178 waypoints along your flight path using high-resolution ECMWF global weather model (0.25° grid, ~25km resolution).
Minimum Winds
5 kt
6 mph
Average Winds
49 kt
56 mph
Maximum Winds
95 kt
109 mph
Valid: Mar 03, 15:00 UTC
Source: European Centre for Medium-Range Weather Forecasts
Flight Planning:
Headwinds increase flight time and fuel consumption. Tailwinds decrease both.
Strong crosswinds may affect takeoff/landing at airports.
Wind Impact Analysis FAIR
Wind Assessment: Moderate headwinds (34 kt avg) will moderately increase flight time. This is typical for this route.
Route Wind Breakdown
Tailwinds
Headwinds
Crosswinds
Moderate headwinds averaging 34 kt - slightly longer than normal
Flight Time Impact
34 kt
Avg Headwind
+51 min
Time Impact
Slower than normal
Wind Range:
• Max Tailwind: 9 kt
• Max Headwind: 77 kt
• Max Crosswind: 61 kt
• Max Tailwind: 9 kt
• Max Headwind: 77 kt
• Max Crosswind: 61 kt
Wind Speed Along Route ECMWF Forecast
ZeroTurb Index (ZTI) Analysis Custom Algorithm
What is ZTI? Our proprietary ZeroTurb Index combines three meteorological indicators
to give you a comprehensive turbulence probability (0.0-1.0 scale). The chart below shows how each
component contributes to the overall ZTI along your route:
- Richardson Number (Ri): Atmospheric stability - lower values indicate CAT risk
- Wind Shear Index (WSI): Rate of wind speed/direction changes
- Temperature Gradient Index (TGI): Frontal boundary strength
- ZTI (Composite): Proprietary composite of the three indices above
ZTI Thresholds:
Smooth: 0.0-0.2
Light: 0.2-0.5
Moderate: 0.5-0.75
Severe: 0.75-1.0
Scientific GTG Analysis NOAA Standards
For Aviation Professionals: This section shows turbulence zones using conservative NOAA GTG thresholds.
These scientific thresholds are more cautious than the user-friendly "Comfort View" above, which better represents typical passenger experience.
Note: Modern aircraft are designed to handle moderate turbulence effortlessly. What scientific models classify as "moderate" often goes unnoticed by passengers due to advanced flight control systems and aircraft structural design. Most commercial flights encounter some level of atmospheric turbulence that the aircraft manages automatically.
Note: Modern aircraft are designed to handle moderate turbulence effortlessly. What scientific models classify as "moderate" often goes unnoticed by passengers due to advanced flight control systems and aircraft structural design. Most commercial flights encounter some level of atmospheric turbulence that the aircraft manages automatically.
Zone Distribution (Scientific Thresholds)
16%
Smooth (<15%)
29 zones
15%
Light (15-30%)
26 zones
69%
Moderate (30-50%)
123 zones
0%
Severe (≥50% prob)
0 zones
Threshold Comparison
| Category | Comfort View | Scientific (NOAA) |
|---|---|---|
| Smooth | <20% probability | <15% probability |
| Light | 20-50% | 15-30% |
| Moderate | 50-75% | 30-50% |
| Severe | ≥75% | ≥50% |
Turbulence Probability Along Route GTG Forecast
Low (0-30%)
Light or no turbulence
Light or no turbulence
Medium (30-50%)
Moderate turbulence likely
Moderate turbulence likely
High (50-70%)
Moderate-severe expected
Moderate-severe expected
Extreme (70-100%)
Severe turbulence
Severe turbulence
Active Turbulence Warnings (AIRSIGMETs) Loading...
Pilot Reports (PIREPs) - 4 Reports
What are PIREPs?
Pilot Reports (PIREPs) are real-time observations from pilots flying the route.
They provide the most accurate turbulence information available.
| Time (UTC) | Intensity | Altitude | Aircraft | Report |
|---|
Airport Forecasts (TAF) - Next 24-30 Hours
Departure: KLAX
Valid:
Mar 03 12:00 -
Mar 04 18:00 UTC
12:00 - 17:00 UTC
Wind: 90° at 6 kt
Visibility: 6+ SM
Clouds:
BKN 1000 ft
12:00 - 17:00 UTC
Wind: 90° at 6 kt
Visibility: 6+ SM
Clouds:
BKN 1000 ft
FM
17:00 - 19:00 UTC
Visibility: 6+ SM
Clouds:
SCT 1200 ft
FM
17:00 - 19:00 UTC
Visibility: 6+ SM
Clouds:
SCT 1200 ft
FM
19:00 - 05:00 UTC
Wind: 250° at 11 kt
Visibility: 6+ SM
Clouds:
SCT 25000 ft
FM
19:00 - 05:00 UTC
Wind: 250° at 11 kt
Visibility: 6+ SM
Clouds:
SCT 25000 ft
FM
05:00 - 10:00 UTC
Visibility: 6+ SM
Clouds:
SCT 25000 ft
FM
05:00 - 10:00 UTC
Visibility: 6+ SM
Clouds:
SCT 25000 ft
FM
10:00 - 17:00 UTC
Visibility: 6+ SM
Clouds:
BKN 1000 ft
FM
10:00 - 17:00 UTC
Visibility: 6+ SM
Clouds:
BKN 1000 ft
FM
17:00 - 18:00 UTC
Visibility: 6+ SM
Clouds:
SCT 1200 ft
FM
17:00 - 18:00 UTC
Visibility: 6+ SM
Clouds:
SCT 1200 ft
Raw TAF:
TAF KLAX 031120Z 0312/0418 09006KT P6SM BKN010 FM031700 VRB03KT P6SM SCT012 FM031900 25011KT P6SM SCT250 FM040500 VRB03KT P6SM SCT250 FM041000 VRB03KT P6SM BKN010 FM041700 VRB03KT P6SM SCT012
Arrival: RJTT
Forecast Valid:
Mar 03 12:00 -
Mar 04 18:00 UTC
12:00 - 18:00 UTC
Wind: 360° at 26 kt
Visibility: 4.35
Weather: -RA
Clouds:
FEW
at 500 ft
SCT
at 800 ft
BKN
at 1500 ft
TEMPO
12:00 - 15:00 UTC
Clouds:
FEW
at 500 ft
BKN
at 800 ft
12:00 - 18:00 UTC
Wind: 360° at 26 kt
Visibility: 4.35
Weather: -RA
Clouds:
FEW
at 500 ft
SCT
at 800 ft
BKN
at 1500 ft
TEMPO
12:00 - 15:00 UTC
Clouds:
FEW
at 500 ft
BKN
at 800 ft
TEMPO
15:00 - 19:00 UTC
Wind: 340° at 34 kt
gusting to 44 kt
Visibility: 1.86
Weather: RA BR
Clouds:
FEW
at 500 ft
BKN
at 800 ft
TEMPO
15:00 - 19:00 UTC
Wind: 340° at 34 kt
gusting to 44 kt
Visibility: 1.86
Weather: RA BR
Clouds:
FEW
at 500 ft
BKN
at 800 ft
TEMPO
19:00 - 23:00 UTC
Wind: 340° at 34 kt
gusting to 44 kt
Visibility: 2.49
Weather: RA BR
Clouds:
FEW
at 500 ft
BKN
at 800 ft
TEMPO
19:00 - 23:00 UTC
Wind: 340° at 34 kt
gusting to 44 kt
Visibility: 2.49
Weather: RA BR
Clouds:
FEW
at 500 ft
BKN
at 800 ft
TEMPO
06:00 - 09:00 UTC
Wind: 340° at 30 kt
gusting to 40 kt
TEMPO
06:00 - 09:00 UTC
Wind: 340° at 30 kt
gusting to 40 kt
Raw TAF:
TAF RJTT 031105Z 0312/0418 36026KT 7000 -RA FEW005 SCT008 BKN015 TEMPO 0312/0315 FEW005 BKN008 TEMPO 0315/0319 34034G44KT 3000 RA BR FEW005 BKN008 TEMPO 0319/0323 34034G44KT 4000 RA BR FEW005 BKN008 TEMPO 0406/0409 34030G40KT
About TAF: Terminal Area Forecasts (TAF) provide detailed 24-30 hour weather forecasts for airports,
including wind, visibility, cloud ceiling, and weather phenomena. Updated every 6 hours by NOAA Aviation Weather Center.
Current Airport Weather (METAR)
Departure: KLAX
Temperature:
14°C (57°F)
| Dewpoint: 11°C
Wind:
Variable at 3 kt
Sky: FEW1200 BKN2500 BKN16000
(Base: 1200 ft)
Flight Category:
MVFR
Altimeter:
1017.00 inHg
Observed:
Mar 03 15:10 UTC
Raw METAR:
SPECI KLAX 031510Z VRB03KT 10SM FEW012 BKN025 BKN160 14/11 A3003 RMK AO2 T01390111
Arrival: RJTT
Temperature:
6°C (42°F)
| Dewpoint: 4°C
Wind:
340° at 21 kt
Sky: FEW700 BKN1200 BKN2000
(Base: 700 ft)
Flight Category:
MVFR
Altimeter:
1013.00 inHg
Observed:
Mar 03 15:00 UTC
Raw METAR:
METAR RJTT 031500Z 34021KT 9999 -RA FEW007 BKN012 BKN020 06/04 Q1013 TEMPO 34030G40KT 4000 RA BR FEW005 BKN008
About METAR: Meteorological Aerodrome Reports (METAR) provide current weather observations from airports,
including temperature, wind, visibility, clouds, and atmospheric pressure. Updated hourly by NOAA Aviation Weather Center.
Flight Categories: VFR (Good), MVFR (Marginal), IFR (Instrument Flight Rules), LIFR (Low Instrument Flight Rules).
Route Segment Analysis
The route has been divided into segments of approximately 500km each for detailed analysis.
Route Map With GTG Forecast Overlay
Data Sources & Our Approach
ZeroTurb's Custom Algorithm: Unlike generic turbulence forecasts, 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 (0.0-1.0 scale) instead
of vague categories. Our approach processes raw ECMWF atmospheric data through custom calculations to detect
Clear-Air Turbulence (CAT), wind shear zones, and frontal boundaries that cause bumpy rides.
This forecast integrates data from:
- ECMWF Open Data - Global atmospheric model (wind/temperature at 13 flight levels, FL100-FL450).
We process this raw data through our ZTI algorithm:
- Richardson Number: Atmospheric stability analysis for CAT detection
- Wind Shear Index: Horizontal wind vector change magnitude
- Temperature Gradient Index: Frontal boundary detection
- NOAA Aviation Weather Center - Real-time Pilot Reports (PIREPs) for validation
- NOAA Aviation Weather Center - SIGMETs/AIRMETs weather advisories
- NOAA Aviation Weather Center - Terminal Area Forecasts (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.
Flight Insights & Recommendations
Looking for a simpler overview?
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