Portland to Orlando Turbulence Forecast

PDX → MCO · 2,531 miles · ~5h 34m

What to Expect

Flying from Portland (PDX) to Orlando (MCO) means crossing a good chunk of the country, and that does mean a few different types of turbulence are possible. Right after takeoff, you might feel some bumps as you cross the Cascades; this is mountain wave turbulence, caused by wind flowing over the mountains. Later, over the Pacific Coast and Great Plains, you could experience clear-air turbulence (CAT), which is often unexpected but generally light. The Northern and Central Rockies can also create mountain wave turbulence. Over Tornado Alley, the Ozark Plateau, the Mississippi Valley, the Southeast Interior, and the Gulf Coast, the main thing is convective turbulence, which comes from thunderstorms and is most common in warmer months. Pilots are always monitoring weather conditions and using onboard radar to navigate around any significant weather.

The flight between Portland and Orlando passes over the Cascades, the volcanic mountain chain stretching from northern California through Washington. When moist Pacific air is forced up and over the Cascades, it creates both orographic turbulence and downstream wave activity. The terrain is especially steep near major volcanoes like Mount Rainier, amplifying the effect.

Turbulence Factors on This Route

• Mountain Wave Turbulence: The Cascades create lee waves and orographic turbulence, especially when Pacific weather systems push moist air over the range.
• Clear-Air Turbulence (CAT): Pacific jet streaks arriving onshore drive upper-level clear-air turbulence along the West Coast.
• Severe Convective Turbulence: Tornado Alley supercells produce some of the most intense convective turbulence in North American aviation.

When Is This Route Bumpiest?

For the smoothest flight, aim for summer or early fall. The convective turbulence is at its lowest during this time. Fall, winter, early spring, and late fall tend to be bumpier because of stronger jet streams and more frequent storms. The mountain wave turbulence from the Cascades and Rockies can be stronger in the colder months due to increased wind speeds, and the risk of convective turbulence in Tornado Alley, the Ozarks, the Mississippi Valley, the Southeast Interior, and the Gulf Coast increases as we move toward spring and summer.

Tips for This Flight

If possible, try to book a morning flight, as storms are less likely to develop early in the day. Any turbulence you encounter will probably feel like driving on a bumpy road or a sudden dip, nothing like the movies. To help stay relaxed, choose a seat over the wing; this area experiences less motion. Remember to stay hydrated and focus on slow, deep breaths; this can help keep you calm and centered. Know that the pilots and crew are highly trained and experienced in handling all types of weather conditions.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.