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
310 minutes (5h 10m)
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
8.9
/10
Smoothness
Smooth Flight
56%
Smooth
42%
Light
2%
Moderate
AI-Powered Flight Briefing
📊 17,000 data points analyzedAdvanced AI-Powered Flight Briefing
Your Journey Beta
1 hour 30 minutes and 4 hours 45 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 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 50 knots. These winds may delay arrival by up to 32 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
SMOOTH
56% of your flight
Peak Intensity
MODERATE
Brief sections only
Route Breakdown (178 zones)
Moderate
Light
Smooth
Forecast Valid: Jan 17, 00:00 UTC
(Generated: Jan 17, 00:00 UTC)
Flight Timeline 5h 10min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:58
Smooth
0:58-1:26
Light
1:26-1:54
Moderate
1:54-2:22
Light
2:22-2:50
Light
2:50-3:18
Light
3:18-3:46
Smooth
3:46-4:13
Light
4:13-4:40
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
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
7 kt
8 mph
Average Winds
50 kt
57 mph
Maximum Winds
172 kt
198 mph
Valid: Jan 17, 06:00 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 crosswinds (33 kt avg) may contribute to some turbulence. Headwinds: 22 kt avg.
Route Wind Breakdown
Headwinds
Crosswinds
Moderate headwinds averaging 22 kt - slightly longer than normal
Flight Time Impact
22 kt
Avg Headwind
+32 min
Time Impact
Slower than normal
Wind Range:
• Max Tailwind: 35 kt
• Max Headwind: 136 kt
• Max Crosswind: 106 kt
• Max Tailwind: 35 kt
• Max Headwind: 136 kt
• Max Crosswind: 106 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)
29%
Smooth (<15%)
52 zones
15%
Light (15-30%)
26 zones
55%
Moderate (30-50%)
98 zones
1%
Severe (≥50% prob)
2 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) - 7 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:
Jan 17 03:00 -
Jan 18 06:00 UTC
03:00 - 08:00 UTC
Visibility: 6+ SM
Clouds:
BKN 28000 ft
03:00 - 08:00 UTC
Visibility: 6+ SM
Clouds:
BKN 28000 ft
FM
08:00 - 21:00 UTC
Wind: 50° at 3 kt
Visibility: 6+ SM
Clouds:
SCT 25000 ft
FM
08:00 - 21:00 UTC
Wind: 50° at 3 kt
Visibility: 6+ SM
Clouds:
SCT 25000 ft
FM
21:00 - 03:00 UTC
Wind: 260° at 8 kt
Visibility: 6+ SM
Clouds:
SKC
FM
21:00 - 03:00 UTC
Wind: 260° at 8 kt
Visibility: 6+ SM
Clouds:
SKC
FM
03:00 - 06:00 UTC
Wind: 270° at 6 kt
Visibility: 6+ SM
Clouds:
SKC
FM
03:00 - 06:00 UTC
Wind: 270° at 6 kt
Visibility: 6+ SM
Clouds:
SKC
Raw TAF:
TAF KLAX 170306Z 1703/1806 VRB03KT P6SM BKN280 FM170800 05003KT P6SM SCT250 FM172100 26008KT P6SM SKC FM180300 27006KT P6SM SKC
Arrival: RJTT
Forecast Valid:
Jan 17 00:00 -
Jan 18 06:00 UTC
00:00 - 06:00 UTC
Wind: 330° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
00:00 - 05:00 UTC
Wind: 170° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
00:00 - 06:00 UTC
Wind: 330° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
00:00 - 05:00 UTC
Wind: 170° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
00:00 - 06:00 UTC
Wind: 330° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
00:00 - 05:00 UTC
Wind: 170° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
00:00 - 06:00 UTC
Wind: 330° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
00:00 - 05:00 UTC
Wind: 170° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
05:00 - 12:00 UTC
Wind: 40° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
05:00 - 12:00 UTC
Wind: 40° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
05:00 - 12:00 UTC
Wind: 40° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
05:00 - 12:00 UTC
Wind: 40° at 6 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
12:00 - 06:00 UTC
Wind: 340° at 18 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
12:00 - 06:00 UTC
Wind: 340° at 18 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
12:00 - 06:00 UTC
Wind: 340° at 18 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
BECMG
12:00 - 06:00 UTC
Wind: 340° at 18 kt
Visibility: 6+
Clouds:
FEW
at 3000 ft
Raw TAF:
TAF RJTT 162305Z 1700/1806 33006KT 9999 FEW030 BECMG 1700/1702 17006KT BECMG 1705/1707 04006KT BECMG 1712/1715 34018KT
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:
16°C (60°F)
| Dewpoint: 8°C
Wind:
0° at 0 kt
Sky: BKN28000
(Base: 28000 ft)
Flight Category:
VFR
Altimeter:
1016.30 inHg
(1016 mb)
Observed:
Jan 17 05:53 UTC
Raw METAR:
METAR KLAX 170553Z 00000KT 10SM BKN280 16/08 A3001 RMK AO2 SLP159 T01610083 10211 20161 53012
Arrival: RJTT
Temperature:
12°C (53°F)
| Dewpoint: 5°C
Wind:
140° at 8 kt
Sky: CAVOK
Flight Category:
VFR
Altimeter:
1010.00 inHg
Observed:
Jan 17 05:30 UTC
Raw METAR:
METAR RJTT 170530Z 14008KT CAVOK 12/05 Q1010 NOSIG RMK A2984
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
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