Chicago O'Hare to Des Moines Turbulence Forecast

ORD → DSM · 298 miles · ~1h 6m

What to Expect

Flying west from Chicago O'Hare to Des Moines, you'll encounter a few distinct weather patterns that can cause bumps. Leaving Chicago, you might experience what's called Lake-Effect Turbulence as you cross the Great Lakes. This happens when cold air moves over the warmer lake water, creating unstable air. Further along, as you pass over the Ohio and Mississippi Valleys, you could encounter Frontal Turbulence, caused by weather fronts colliding. In warmer months, Convective Turbulence, caused by rising warm air, is also possible over the Mississippi Valley. Remember, pilots are always monitoring conditions and adjusting course or altitude to find the smoothest ride possible; these are everyday occurrences for them.

Between Chicago O'Hare and Des Moines, the flight path crosses the Great Lakes region. The lakes create their own micro-climate: cold-season lake-effect convection can produce localized but sharp turbulence at lower altitudes, while strong temperature contrasts between the water and surrounding land generate low-level wind shear, particularly during fall and early winter.

Turbulence Factors on This Route

• Lake-Effect Turbulence: The Great Lakes produce lake-effect convection and low-level wind shear from land-water temperature contrasts.
• Frontal Turbulence: The Ohio Valley is a preferred storm track where frontal boundaries and embedded convection create turbulence year-round.

When Is This Route Bumpiest?

For the smoothest experience, aim to fly this route in the summer or early fall. During these months, the air tends to be more stable, reducing the chance of turbulence from lake effects, fronts, or convection. Late fall and early winter can be a bit bumpier due to increased lake-effect activity and stronger weather fronts. Spring and early summer can also be more turbulent because of increased convective activity over the Mississippi Valley as temperatures rise.

Tips for This Flight

If possible, try to book a morning flight; the air is often calmer earlier in the day, before the ground heats up and creates more convective activity. Any turbulence you do experience on this route will likely feel like driving over a slightly bumpy road, or perhaps a few stronger jolts, like hitting a pothole. Staying well-hydrated can help you feel more comfortable, so bring a water bottle to sip on throughout the flight, and remember that the flight crew is there to support you.

Get Your Forecast

Related Routes

See all routes from Chicago O'Hare or to Des Moines.

More from Chicago O'Hare

More to Des Moines

Forecasts based on NOAA HRRR and GFS atmospheric model data.