Des Moines to Tucson Turbulence Forecast

DSM → TUS · 1,153 miles · ~2h 48m

What to Expect

Flying from Des Moines (DSM) to Tucson (TUS) means traversing a variety of landscapes, each with its own potential for turbulence. Leaving Des Moines, you'll cross the Great Plains, an area known for clear-air turbulence (CAT), which is often unexpected but generally light. As you head southwest, you'll enter Tornado Alley, where severe convective turbulence can occur, especially during storm activity. Further along the route, you’ll fly over the Southern Rockies, where mountain wave turbulence can develop as air flows over the peaks. Finally, approaching Tucson, you'll experience the Mojave and Sonoran Deserts, where thermal turbulence, caused by rising warm air, is common. Pilots are trained to anticipate and navigate these conditions, adjusting altitude or course as needed, ensuring a safe and manageable flight.

The Des Moines to Tucson route passes over the Southern Rockies in New Mexico and southern Colorado. While somewhat lower than the peaks to the north, these mountains still produce notable mountain wave turbulence, particularly when strong southwesterly winds aloft align perpendicular to the ridgeline.

Turbulence Factors on This Route

• Clear-Air Turbulence (CAT): The jet stream frequently meanders over the Great Plains, producing wind shear and clear-air turbulence at cruising altitudes.
• Severe Convective Turbulence: Tornado Alley supercells produce some of the most intense convective turbulence in North American aviation.
• Mountain Wave Turbulence: The Southern Rockies produce lee waves when southwesterly upper-level winds flow across the terrain.
• Thermal Turbulence: Extreme desert heating generates strong thermal updrafts that cause low-to-mid-level turbulence, especially in summer afternoons.

When Is This Route Bumpiest?

The summer and fall months generally offer the smoothest flights on this route. During summer, the atmosphere tends to be more stable, reducing the likelihood of severe convective turbulence, while fall provides a break from both summer heat and winter storms. Conversely, winter, early spring, spring, early summer, and late winter can be bumpier. Winter and early spring see increased clear-air turbulence and mountain wave turbulence, while spring and early summer bring the potential for severe convective turbulence in Tornado Alley. Thermal turbulence can occur any time of year, but is most pronounced during the hotter months.

Tips for This Flight

If you're anxious about turbulence, booking a morning flight often leads to a smoother experience. The atmosphere is typically more stable earlier in the day, before the sun heats the ground and creates thermal activity. Remember that any turbulence you encounter on this route will probably feel like driving over a slightly bumpy road or a sudden, short jostle. Choosing a seat over the wing can provide a slightly more stable ride, as it's closer to the plane's center of gravity. Stay hydrated and try some deep breathing exercises; focusing on your breath can help calm your nerves. The pilots are constantly monitoring the weather and will do everything they can to ensure a comfortable flight.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.