Turbulence Forecast Tools Compared (2026): Turbli vs Turbcast vs Turbulence Forecast vs SkyBriefing

Turbulence forecasting used to be something only airline dispatchers and pilots had access to. In the last few years, a small but capable set of consumer tools has emerged that surface the same underlying atmospheric data to anyone with a flight booking. This article compares the main options as of mid-2026.

This comparison is published by Turbcast, one of the products being compared. We've tried to write it fairly. Where Turbcast is genuinely better, we've said so; where another tool is genuinely better, we've said that too. If you spot something we got wrong about a competitor, email info@turbcast.com and we'll correct it.

TL;DR: All five tools are free to check and draw on the same NOAA turbulence guidance. Turbli is the most polished quick route check. Turbulence Forecast has the deepest pilot-written analysis. SkyBriefing is best for fear-of-flying reassurance. ZeroTurb has the best live map. Turbcast is the only one with flight-number lookup, per-flight-level detail, and a paid briefing series it verifies against pilot reports after landing.

The tools

Tool	Founded	Pricing	Best for
Turbli	2020	Free	Polished consumer experience, broad reach
Turbulence Forecast	2007	Free + paid subscriptions	Pilot-written forecasts, depth of analysis
Turbcast	2024	Free + USD$9.99 briefings	Per-flight-number lookups, route-segment detail
SkyBriefing	2021	Free	Pilot-curated content, fear-of-flying focus
ZeroTurb	2023	Free	Live global turbulence map

What they all have in common

At the base layer, these tools draw on NOAA's public turbulence guidance. The international standard is WAFS (World Area Forecast System, mandated by ICAO). In US airspace, the current operational product is NOAA GTG 4.0 (Graphical Turbulence Guidance) - hourly, 3 km, calibrated against pilot reports - which Turbcast surfaces directly for US flights. None of these consumer tools runs its own atmospheric model; the differences come from what each layers on top, and whether any of them checks its forecasts against what actually happened.

What differs between them is:

1. What they layer on top of WAFS - physics indices, live PIREPs, route-segment computation, presentation.
2. What they leave out - some tools simplify the picture for nervous flyers; others expose more detail.
3. How they monetize - free, freemium, donation-supported, or paid.

Turbli

Turbli is the longest-established and best-known consumer turbulence tool. It launched in 2020 and has become the default reference for travel journalists.

Strengths: mature, polished consumer experience; strong brand recognition; free with no signup; clear visual presentation of forecast severity.

Limitations: single composite severity score per route - no per-flight-level breakdown; doesn't support flight-number lookups (you need origin/destination/date); no paid alerts; no notification when forecasts change close to departure.

Best for: Travellers who want a quick yes/no answer on whether their route is statistically bumpy.

Turbulence Forecast

The oldest of the consumer tools, founded by a commercial pilot in 2007. Blends human-authored forecasts with automated data.

Strengths: hand-written forecasts for major transatlantic and transpacific routes; strong pilot/aviation-community trust; PIREP-rich; active community elements.

Limitations: some content gated behind subscriptions; older visual presentation; selective coverage (best for major long-haul corridors).

Best for: Aviation enthusiasts and frequent long-haul flyers who want depth of analysis.

Turbcast

(This is our product. We've tried to describe it as accurately as we describe the others.) Launched in 2024, focused on free, fast, no-signup access and per-flight-number queries.

Strengths: for US flights, runs directly on NOAA's operational GTG 4.0 model (the same one US dispatchers use); physics-based forecasting (Ellrod TI1, Richardson, CAPE) worldwide; flight-number lookups (type "NZ1" or "BA009"); per-segment route breakdown; per-flight-level forecasts; free, no signup, no email; optional USD$9.99 one-time briefing series: up to 7 emailed PDF briefings from 48 hours to 30 minutes before departure (no subscription); and - uniquely among these tools - it grades its own forecasts against pilot reports after each flight and tells paying customers how it did, including the misses.

Limitations: newer brand; no hand-written analyst commentary; no native mobile app yet (web is mobile-responsive).

Best for: Travellers who know their flight number and want a quick, detailed, no-signup forecast - or who want a verified PDF briefing.

SkyBriefing

A free pre-flight briefing tool by an airline pilot. Blends forecasts with fear-of-flying education.

Strengths: calm, reassuring tone; pilot-written explanatory content; free; clean interface.

Limitations: less depth than Turbulence Forecast; less per-flight precision than Turbcast; smaller global coverage.

Best for: Anxious flyers who want a forecast plus reassurance.

ZeroTurb

The newest entrant, launched 2023, differentiated by a live global turbulence map UI.

Strengths: strong visual; useful for general atmospheric awareness; free.

Limitations: less per-flight specificity; newer brand; map-first UX may overwhelm casual users.

Best for: Aviation enthusiasts and weather-curious users.

How to choose

If you have one flight and want a quick read:

• You know your flight number → Turbcast
• You only know origin/destination → Turbli

If you're an aviation enthusiast wanting depth:

• → Turbulence Forecast for analyst commentary
• → Turbcast for per-flight-level technical detail
• → ZeroTurb for the global-map view

If you're a nervous flyer:

• → SkyBriefing for pilot-authored reassurance
• → Turbcast's is turbulence dangerous and will turbulence crash a plane for the engineering safety picture

If you want a PDF briefing in your inbox:

• → Turbcast is the only one with a one-time paid briefing series (USD$9.99, no subscription)

Notes on accuracy

All five fundamentally rely on NOAA WAFS for the base turbulence layer. Published verification - Probability of Detection ~75%, False Alarm Ratio ~30% for moderate-or-greater turbulence - applies to all of them at the shared layer. Differences come from how they layer physics on top, whether they incorporate live PIREPs, how they handle changes between 6-hour cycles, and how they present uncertainty.

For more on accuracy specifically, see our honest accuracy breakdown.

What's not on this list

• FlightAware, FlightRadar24: Excellent for live aircraft tracking. Turbulence overlay is secondary to their core function.
• MyRadar: Consumer weather radar app with limited turbulence-specific information.
• iOS "Turbcast" app (separate product from this site): A fear-of-flying education tool built around NLP techniques by a different team. Not a forecast tool per se.

The bottom line

You can't really go wrong with any of these - they all use the same underlying NOAA data. Pick the one whose UX fits how you want to engage with the forecast. The good news is they're all free at the layer that matters.