Newark to Spokane Turbulence Forecast

EWR → GEG · 2,172 miles · ~4h 51m

What to Expect

Your flight from Newark to Spokane, heading northwest over 2172 miles, will take you over a variety of landscapes, each with its own potential for turbulence. You might experience some mechanical turbulence early on as you cross the Northern Appalachians; this is simply the air bumping as it flows over the mountains. As you head out over the Atlantic Seaboard, expect the possibility of clear-air turbulence, or CAT, which can occur even in seemingly clear skies. The Great Lakes could bring lake-effect turbulence depending on the weather conditions. The Upper Midwest and the Great Plains are also zones where CAT can occur. Finally, as you approach Spokane, you'll be flying over the Northern Rockies, so be prepared for the possibility of mountain wave turbulence. Pilots are very familiar with these common weather patterns and adept at navigating them.

The Newark to Spokane 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 Northern Appalachians generate low-level mechanical turbulence during strong post-frontal northwest winds.
• Clear-Air Turbulence (CAT): The Atlantic coast jet stream and land-sea temperature contrasts create frequent clear-air turbulence at cruising altitude.
• Lake-Effect Turbulence: The Great Lakes produce lake-effect convection and low-level wind shear from land-water temperature contrasts.
• Mountain Wave Turbulence: The Northern Rockies generate powerful lee waves when Pacific fronts drive westerly flow across the high terrain.

When Is This Route Bumpiest?

For the smoothest possible ride on this route, aim to fly during the summer or early fall. These seasons tend to be calmer as the atmospheric conditions are more stable. Winter, late fall, early winter, early spring, and spring can be a bit bumpier. This is because the changes in temperature and stronger winds, especially over the Rockies and the Great Lakes, tend to create more turbulence. Remember that turbulence is a normal part of flying, and pilots are trained to handle it safely.

Tips for This Flight

If you're concerned about turbulence, booking a morning flight tends to offer the smoothest conditions, as the air is generally calmer earlier in the day. Any turbulence you encounter on this route will likely feel like driving on a bumpy road, rather than anything severe. For extra comfort, choose a seat over the wing; this area experiences less motion during turbulence. Staying well-hydrated can also help you feel more relaxed; deep, even breaths can work wonders, too. Remember that the pilots and crew are there to ensure your safety and comfort every step of the way.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.