Minneapolis to Spokane Turbulence Forecast

MSP → GEG · 1,172 miles · ~2h 51m

What to Expect

Your flight from Minneapolis to Spokane crosses a variety of landscapes, each with its own potential for turbulence. Initially, you'll be flying over the Upper Midwest and then the Great Plains, areas known for clear-air turbulence (CAT). This type of turbulence is caused by colliding air currents at high altitudes, and while it can be unsettling, it's very common and something pilots are trained to handle. As you approach Spokane, you'll encounter the Northern Rockies. These mountains can generate mountain wave turbulence, which happens when wind flows over the peaks, creating waves in the atmosphere. Again, pilots are well aware of this phenomenon and use weather data to navigate around it. Think of it like driving on a slightly bumpy road; the pilots know the road well and adjust accordingly.

The Minneapolis 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

• Clear-Air Turbulence (CAT): The Upper Midwest sits beneath frequent polar jet stream intrusions, producing clear-air turbulence at cruising altitudes.
• 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 flight, aim to travel during the summer or early fall. The atmosphere tends to be more stable during these months, reducing the likelihood of significant turbulence over both the plains and the mountains. Winter, early spring, and late fall are typically bumpier due to stronger jet streams and more pronounced temperature differences, which can amplify clear-air turbulence and mountain wave effects. Spring can bring unstable weather patterns as well, contributing to a less smooth ride.

Tips for This Flight

If you're concerned about turbulence, booking a morning flight is often your best bet, as the atmosphere tends to be calmer earlier in the day. Any turbulence you might experience on this route will likely feel like driving over a series of potholes or a bit of unexpected bouncing. To help stay relaxed, choose a seat over the wing of the aircraft, as it is closest to the aircraft's center of gravity and you will feel less motion than the front or rear of the aircraft. Remember to stay hydrated and focus on deep, steady breaths. The pilots are experienced professionals and are constantly monitoring conditions to ensure a safe and comfortable flight.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.