What Pilots Actually Do During Severe Turbulence

If you've ever sat in 25C during a bad bumpy stretch, you've probably wondered what's happening 60 feet ahead of you in the cockpit. The honest answer is: a lot less drama than you'd think.

Severe turbulence is rare, but when it does happen, professional flight crews follow a very specific playbook that's been refined over decades of accident analysis and codified in documents like FAA Advisory Circular 120-88A. Most of the playbook is about preparation. The part that happens in the actual encounter is shorter than passengers imagine.

Step 1: It usually doesn't start in the cockpit — it starts at dispatch

Long before pushback, the airline's dispatcher and the captain review a turbulence forecast for the route. Modern airlines combine several inputs:

• NCAR Graphical Turbulence Guidance for clear-air, mountain-wave, and low-level turbulence forecasts (more details)
• IATA Turbulence Aware real-time EDR (Eddy Dissipation Rate) data from other airlines (overview)
• PIREPs from aircraft already on the route
• SIGMETs issued by meteorological authorities for significant weather

Based on those inputs, the dispatcher may file a different route, a different cruise altitude, or just brief the captain on which segments to watch. AC 120-88A is explicit that "the first and most fundamental step" is a corporate culture of avoidance — re-routing around forecast turbulence rather than flying through it.

Step 2: Cabin service planning

If significant turbulence is forecast, the in-flight service plan changes. Meal service may be moved earlier, hot beverages restricted, and the cabin crew briefed on when to expect rough air. Passengers rarely notice this because it looks like normal service — but the timing is chosen specifically to minimise the chance of crew or passengers being out of their seats during the bumpy segment.

Step 3: En route — slowing to turbulence penetration speed

When a flight crew encounters or anticipates moderate or severe turbulence, the first cockpit action is almost always a speed reduction to the manufacturer's published turbulence penetration speed, sometimes called V_RA ("rough air speed") on Airbus types or V_B on Boeing types.

Why slow down? Gust-induced structural loads scale with the square of airspeed. Flying 10% slower reduces the maximum gust load on the airframe by roughly 20%. Slower also gives the autopilot more authority to keep the aircraft on its intended flight path without exceeding pitch and bank limits.

Airbus's Safety First guidance is explicit: V_RA "provides the best protection against reaching structural limits due to gust effects while maintaining a sufficient margin above stall speed."

Step 4: Securing the cabin

If severe turbulence is anticipated within minutes, the captain or first officer calls cabin crew on the interphone and tells them to secure the cabin: stow carts, fasten harnesses on jumpseats, and take their seats. The seatbelt sign goes on and a passenger announcement is made. In the cockpit, both pilots tighten their shoulder harnesses, secure loose objects (charts, water bottles, EFB tablets), and brief each other on the expected duration.

This is the single most important pilot action for passenger safety. The NTSB's 2021 safety study found that 79% of seriously injured occupants in turbulence accidents were flight attendants — almost all because they were on their feet when the aircraft entered rough air.

Step 5: Inside the encounter — autopilot stays on

Here's the part that surprises most people: in modern airliners, the autopilot stays engaged through severe turbulence. It's not switched off so the captain can wrestle with the yoke.

Airbus and Boeing both publish guidance recommending autopilot remain on. The reasoning is that the autopilot makes smaller, smoother control inputs than even an experienced human, and it never over-corrects. Manual flying during severe turbulence has historically been a leading cause of secondary excursions — pilots pulling back on the yoke after a downdraft, only to over-stress the airframe in the subsequent climb.

The flying pilot's job inside the encounter is:

1. Monitor the autopilot. Watch attitude, altitude, and airspeed. Disconnect only if the autopilot is not coping (e.g. repeatedly hitting bank limits).
2. Allow deviations. Do not chase altitude or heading. AC 120-88A and Airbus guidance both stress that allowing the aircraft to drift up to a thousand feet from the assigned altitude is safer than trying to force it back.
3. No rudder. Severe sideslip from rudder inputs has been implicated in structural failures (notably American Airlines flight 587 in 2001). Modern training is unambiguous: feet stay on the floor.
4. Smooth, small pitch inputs only if hand-flying.
5. Talk to ATC when there's a quiet moment — request a different altitude or a deviation, but only if it can be done without sharp manoeuvring.

Step 6: After the encounter

Once the air smooths out, the cockpit becomes busy in a different way:

• PIREP. The crew reports the location, altitude, intensity, and duration of the turbulence to ATC. This warns following aircraft and feeds into the global turbulence picture.
• Cabin check. Cabin crew sweep the cabin and report any passenger injuries or damage. If anyone is hurt, the captain decides whether to divert.
• Airframe assessment. If the encounter involved sustained heavy g-loading, the crew may request a "hard landing" or "severe turbulence" structural inspection by maintenance on arrival — sometimes the aircraft is taken out of service for inspection of wing and tail attachment points.
• Defects logged. Anything that broke or shifted (overhead bin latches, galley equipment, cabin furnishings) is written up.

What pilots are specifically trained not to do

Modern type-rating and recurrent training drill several anti-patterns:

• Don't disconnect the autopilot reflexively. Manual flying makes severe turbulence worse on average, not better.
• Don't chase altitude. A 500-foot excursion is not an emergency; over-controlling to fix it can be.
• Don't use rudder. This is the single hardest habit to extinguish in retraining.
• Don't accelerate to outrun it. Speeding up increases gust loading. Slow down first.
• Don't descend to "warmer air." Convective turbulence often gets worse in the cloud layer beneath the cruise level.

FAQ

Do pilots feel the same turbulence as passengers?

Mostly yes, with two differences. They're harnessed in (so they don't get thrown), and they have a much better sense of where the encounter is in space and time, which makes it less psychologically unsettling.

How fast is turbulence penetration speed?

It varies by aircraft and weight, but as a rough guide, a long-haul widebody cruises around Mach 0.84–0.85 and might slow to roughly Mach 0.80 (about 290 KIAS at altitude) in severe turbulence. The exact speed is in the aircraft's operating manual.

Can pilots see severe turbulence before they hit it?

Sometimes. Convective turbulence shows on radar at 100+ NM. Clear-air turbulence — which is what causes most serious injury events — usually doesn't show on radar at all (see our deep-dive). That's why forecasts and EDR sharing matter so much.

Has anyone ever lost an airliner to turbulence?

On a modern commercial transport aircraft, no recorded loss has been caused by turbulence alone. The structural margins are very large. Injuries to unbelted occupants are the persistent problem.

What should I do as a passenger?

Keep your seatbelt fastened whenever you're seated. That's it. The cockpit has the problem under control; your seatbelt is the only variable in your hands. Check the forecast for your route if you want to know what's expected before you fly.

The takeaway

Severe turbulence in the cockpit is a checklist, not a struggle. Pilots slow to penetration speed, leave the autopilot engaged, allow the aircraft to deviate slightly from its target altitude, avoid rudder inputs, and brief the cabin. Most of the work happens before the encounter, in the form of route planning and cabin securement. The drama, such as it is, is almost entirely about preventing injury to people who are on their feet — which is why the simplest action you can take as a passenger is also the most powerful.