Spokane to Madison Turbulence Forecast

GEG → MSN · 1,395 miles · ~3h 17m

What to Expect

Flying east from Spokane (GEG) to Madison (MSN) involves crossing several distinct geographic areas, each with its own potential for turbulence. Right after takeoff, you'll be flying over the Northern Rockies, which can create what's called Mountain Wave Turbulence as air flows over the mountains; this is more common when there are strong winds aloft. As you continue eastward, you'll encounter the Great Plains and the Upper Midwest, regions known for Clear-Air Turbulence (CAT), which, as the name suggests, can occur even when the sky looks perfectly clear; CAT is often related to jet stream activity. Finally, approaching Madison, you might experience Lake-Effect Turbulence near the Great Lakes, caused by cold air moving over the warmer lake waters. Pilots are very familiar with these patterns and use weather forecasts to navigate the smoothest possible path, but it's worth knowing what to expect.

The Spokane to Madison 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

• Mountain Wave Turbulence: The Northern Rockies generate powerful lee waves when Pacific fronts drive westerly flow across the high terrain.
• Clear-Air Turbulence (CAT): The jet stream frequently meanders over the Great Plains, producing wind shear and clear-air turbulence at cruising altitudes.
• Lake-Effect Turbulence: The Great Lakes produce lake-effect convection and low-level wind shear from land-water temperature contrasts.

When Is This Route Bumpiest?

The summer and early fall months are generally the calmest for this route. The atmosphere tends to be more stable, reducing the likelihood of both Mountain Wave and Clear-Air Turbulence. In contrast, late fall, winter, early spring, and early winter are often bumpier. This is because stronger temperature gradients and jet stream activity can increase the intensity of Clear-Air Turbulence and Mountain Wave Turbulence. Additionally, the temperature differences between the air and the lake water are greatest in the late fall and winter, increasing the chance of Lake-Effect Turbulence.

Tips for This Flight

If possible, aim for a morning flight, as atmospheric conditions tend to be more stable earlier in the day, potentially reducing turbulence. Any turbulence you do encounter on this route will likely feel like driving on a road with potholes, or perhaps a bit like being on a boat rocking gently. Remember that the pilots are highly trained to handle these conditions. To help yourself feel more comfortable, choose a seat over the wing, as this area of the plane experiences less motion; staying well-hydrated can also help you feel more relaxed. You've got this, and you'll be in Madison before you know it.

Get Your Forecast

Related Routes

See all routes from Spokane or to Madison.

More from Spokane

More to Madison

Forecasts based on NOAA HRRR and GFS atmospheric model data.