Memphis to San Diego Turbulence Forecast

MEM → SAN · 1,564 miles · ~3h 38m

What to Expect

Your flight from Memphis (MEM) to San Diego (SAN) crosses a variety of geographic features, each with its own potential for turbulence. Initially, you'll be over the Mississippi Valley and Southeast Interior, areas prone to convective turbulence, especially during warmer months, due to rising warm air. Then you'll cross the Ozark Plateau and Tornado Alley, where severe convective turbulence can occur, particularly in spring. As you head west, the Great Plains may bring clear-air turbulence (CAT), caused by wind shear at high altitudes. Finally, approaching San Diego, you'll fly over the Southern Rockies, where mountain wave turbulence is possible, and the Mojave and Sonoran Deserts, where thermal turbulence from the hot desert air can occur. Pilots are very familiar with these patterns, and use weather forecasting to navigate the safest, smoothest path possible.

The Memphis to San Diego 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 Mississippi Valley is a breeding ground for squall lines and mesoscale convective systems that produce widespread turbulence.
• Clear-Air Turbulence (CAT): The jet stream frequently meanders over the Great Plains, producing wind shear and clear-air turbulence at cruising altitudes.
• 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 flight, aim for fall, late fall, or winter. During these times, convective turbulence is less frequent over the Mississippi Valley, Southeast Interior, Ozark Plateau and Tornado Alley. Summer can also be relatively smooth. Spring, early summer, early spring, and late winter tend to be bumpier; convective activity is higher over the eastern portions of the route, and mountain wave turbulence in the Rockies can also increase. The warmer months over the Mojave and Sonoran Deserts also mean more thermal turbulence.

Tips for This Flight

The best way to potentially minimize turbulence is to choose a morning flight; the air tends to be calmer earlier in the day. Any turbulence you encounter on this route will likely feel like driving on a bumpy, unpaved road for a few minutes, or perhaps a sudden jolt. Staying hydrated can help you feel more relaxed. Choose an aisle seat, which can sometimes feel less affected by minor bumps, and focus on slow, deep breaths to help calm your nerves. Remember that turbulence is a normal part of flying, and the pilots are well-trained to handle it.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.