Myrtle Beach to Portland Turbulence Forecast

MYR → PDX · 2,430 miles · ~5h 22m

What to Expect

Your flight from Myrtle Beach to Portland crosses a wide variety of landscapes, each with its own potential for turbulence. Initially, you'll encounter the Southern Appalachians, which can cause mechanical turbulence as air is disrupted flowing over the mountains. As you continue northwest, you'll fly over the Southeast Interior and the Mississippi Valley, where convective turbulence from rising warm air is possible, especially in the afternoons. The Ohio Valley might present frontal turbulence if there are weather systems in the area. Crossing the Great Plains, you might experience clear-air turbulence (CAT), which can occur even in seemingly clear skies. Finally, approaching Portland, you'll fly over the Northern Rockies and the Cascades, where mountain wave turbulence could occur. These are common weather patterns, and pilots are skilled at navigating them.

The Myrtle Beach to Portland route crosses the Northern Rockies, a rugged expanse of high peaks in Montana, Idaho, and Wyoming. Mountain wave turbulence is frequent here, especially when Pacific storm systems push strong winds over the Continental Divide. Pilots often report moderate chop between 30,000 and 40,000 feet over this region.

Turbulence Factors on This Route

• Mechanical Turbulence: The Southern Appalachians produce terrain-induced chop, especially during strong wind events and summer convection over the ridgeline.
• Convective Turbulence: The warm, humid Southeast interior supports frequent thunderstorm development, particularly during afternoon hours.
• 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.

When Is This Route Bumpiest?

For the smoothest possible flight, aim for travel during the fall months or winter. During these times, convective turbulence is less frequent over the Southeast Interior and Mississippi Valley. On the other hand, spring, early summer, early spring, late fall, and summer tend to be bumpier. Warmer temperatures can lead to increased convective activity, while the transition seasons often bring more frontal systems across the Ohio Valley. Mountain wave turbulence is possible year-round but can be more pronounced during periods of strong winds aloft.

Tips for This Flight

Choosing a morning flight is often your best bet for a smoother ride, as convective turbulence tends to build throughout the day. Any turbulence you encounter on this route will likely feel like driving on a slightly bumpy or unpaved road; it's usually more of an annoyance than anything truly alarming. To stay comfortable, consider choosing a seat over the wing, as it's typically the most stable part of the plane. Remember to stay hydrated and focus on slow, deep breaths to help you relax. Know that the pilots and crew are well-prepared for any bumps along the way.

Get Your Forecast

Related Routes

See all routes from Myrtle Beach or to Portland.

More from Myrtle Beach

More to Portland

Forecasts based on NOAA HRRR and GFS atmospheric model data.