Birmingham to Phoenix Turbulence Forecast

BHM → PHX · 1,451 miles · ~3h 24m

What to Expect

The Birmingham to Phoenix flight can be a bit of an adventure, turbulence-wise, thanks to the diverse terrain you'll be crossing. Expect some bumps over the Southeast Interior, Mississippi Valley, and Ozark Plateau; these are areas prone to convective turbulence, which is caused by rising warm air, especially in the afternoons. Then you'll cross Tornado Alley, which can be particularly lively with severe convective turbulence when conditions are right. As you approach Phoenix, you'll fly over the Southern Rockies, where mountain wave turbulence can occur as wind flows over the mountains, and the Mojave and Sonoran Deserts, where thermal turbulence can arise from the hot desert air rising. These phenomena are well-understood by pilots, who are trained to navigate them safely every day. They constantly monitor weather conditions and adjust altitude or route as needed to minimize any discomfort.

The Birmingham to Phoenix route passes over the Southern Rockies in New Mexico and southern Colorado. While somewhat lower than the peaks to the north, these mountains still produce notable mountain wave turbulence, particularly when strong southwesterly winds aloft align perpendicular to the ridgeline.

Turbulence Factors on This Route

• Convective Turbulence: The warm, humid Southeast interior supports frequent thunderstorm development, particularly during afternoon hours.
• Mountain Wave Turbulence: The Southern Rockies produce lee waves when southwesterly upper-level winds flow across the terrain.
• Thermal Turbulence: Extreme desert heating generates strong thermal updrafts that cause low-to-mid-level turbulence, especially in summer afternoons.

When Is This Route Bumpiest?

For the smoothest possible flight, aim to travel in late fall, winter, or fall. During these seasons, the air tends to be more stable, reducing the likelihood of convective or thermal turbulence. Summer, spring, and early summer tend to be bumpier. This is because warmer temperatures fuel convective activity over the Southeast Interior, Mississippi Valley, and Ozark Plateau, and contribute to thermal turbulence over the deserts. Late winter can also have more turbulence as weather systems transition and mountain wave turbulence becomes more common over the Rockies.

Tips for This Flight

The best way to minimize turbulence on this route is to book a morning flight, as the air is generally calmer before the day heats up. If you do experience turbulence, remember that it's typically like driving on a bumpy road, not a sudden drop. Pilots are very skilled at handling these conditions. For extra comfort, choose a seat over the wing, as it tends to experience less motion, and focus on deep, steady breathing to help you relax. Remember that the flight crew is there to support you, so don't hesitate to ask them any questions you may have.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.