Chicago Midway to Los Angeles Turbulence Forecast

MDW → LAX · 1,747 miles · ~3h 60m

What to Expect

The Chicago Midway to Los Angeles flight is a bit of a meteorological sampler platter, crossing diverse geographic regions each with its own unique potential for turbulence. Expect some chop as you leave Chicago and cross the Great Lakes, as the cold air passing over warmer lake water can result in Lake-Effect Turbulence. As you continue west, you'll cross the Ohio and Mississippi Valleys, where weather fronts can cause Frontal Turbulence and rising warm air can cause Convective Turbulence. Over the Great Plains and Tornado Alley, expect the possibility of Clear-Air Turbulence (CAT) and Severe Convective Turbulence. Finally, approaching Los Angeles, your plane will cross the Front Range and Central Rockies, where Mountain Wave Turbulence can occur, and the Mojave and Sonoran Deserts, where you might feel some Thermal Turbulence. Remember that pilots are experts at managing these conditions and turbulence forecasts are a key part of their flight planning.

Flights between Chicago Midway and Los Angeles pass along the Front Range, where the abrupt rise of the Colorado Rockies generates some of the strongest mountain wave turbulence in the continental U.S. Downdrafts east of the ridgeline can be intense, and rotor turbulence near the surface sometimes extends to cruising altitude during high-wind events.

Turbulence Factors on This Route

• 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.
• 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: Strong westerly winds over the Front Range create oscillating waves that can produce sustained moderate turbulence at jet cruise levels.

When Is This Route Bumpiest?

For the smoothest possible ride, aim to fly this route in the summer, early fall, or fall. These seasons generally see less dramatic weather patterns across the country, leading to fewer instances of turbulence. Late fall, early winter, winter, spring, early summer, early spring, and summer, on the other hand, tend to be bumpier. This is because these seasons bring more frequent and intense weather systems over the Great Plains, Ohio Valley, Mississippi Valley, Front Range, and Central Rockies, including stronger fronts, thunderstorms, and upper-level winds that interact with mountainous terrain.

Tips for This Flight

If you're anxious about turbulence, try to book a morning flight, as the atmosphere is often more stable earlier in the day, especially over Tornado Alley and the deserts. Any turbulence you experience on this route is most likely to feel like driving on a bumpy road, rather than anything truly dramatic. For extra comfort, choose a seat over the wing, which tends to experience less motion, and focus on deep, slow breaths to help stay calm and centered. Remember, the pilots are well-trained and constantly monitoring the conditions to ensure a safe and comfortable flight.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.