Buffalo to St. Louis Turbulence Forecast

BUF → STL · 673 miles · ~1h 51m

What to Expect

Flying west from Buffalo (BUF) to St. Louis (STL) means you'll be traveling over varied terrain, which can lead to a few different types of turbulence. Immediately after takeoff, you might feel some bumps as you cross the Northern Appalachians. This is mechanical turbulence, caused by wind flowing over the mountains. Then, over the Great Lakes, especially in cooler months, you could experience lake-effect turbulence as cold air moves over the relatively warmer lake waters. As you continue into the Ohio Valley, you might encounter frontal turbulence, which occurs when different air masses meet. Finally, as you approach St. Louis in the Mississippi Valley, convective turbulence is possible, especially during warmer months, due to rising warm air. Remember, pilots are trained to handle all these common weather patterns.

Between Buffalo and St. Louis, the route crosses the Northern Appalachians from Pennsylvania through New England. While lower than western ranges, the Appalachians still produce mechanical turbulence and low-level wind shear, particularly when strong northwest winds follow cold frontal passages. Flights below 20,000 feet feel this most acutely.

Turbulence Factors on This Route

• Mechanical Turbulence: The Northern Appalachians generate low-level mechanical turbulence during strong post-frontal northwest winds.
• Lake-Effect Turbulence: The Great Lakes produce lake-effect convection and low-level wind shear from land-water temperature contrasts.
• Frontal Turbulence: The Ohio Valley is a preferred storm track where frontal boundaries and embedded convection create turbulence year-round.

When Is This Route Bumpiest?

For the smoothest flight, aim for summer, early fall, fall, or winter. The air is generally more stable during these times, minimizing convective turbulence over the Mississippi Valley and lake-effect turbulence over the Great Lakes. Winter is smooth because the lakes freeze. Late fall, early winter, spring, and early summer can be bumpier. Spring brings increased frontal activity in the Ohio Valley, while early summer can see more convective turbulence, and late fall to early winter can have increased lake-effect turbulence and stronger winds over the Appalachians.

Tips for This Flight

If you're concerned about turbulence, booking a morning flight is often a good idea, as the air tends to be calmer then. Any turbulence on this route will probably feel like driving on a slightly bumpy road, rather than anything alarming. For extra comfort, choose a seat over the wing; it's generally the most stable part of the plane. Remember to stay hydrated and practice deep, slow breathing. The crew is there to support you and are well-versed in helping passengers feel at ease.

Get Your Forecast

Related Routes

See all routes from Buffalo or to St. Louis.

More from Buffalo

More to St. Louis

Forecasts based on NOAA HRRR and GFS atmospheric model data.