San Francisco to Salt Lake City Turbulence Forecast

SFO → SLC · 598 miles · ~1h 42m

What to Expect

Your San Francisco to Salt Lake City flight, while relatively short at around 1 hour and 42 minutes, does cross some interesting geographic features that can influence turbulence. Right after takeoff, expect to cross the Pacific Coast where clear-air turbulence, or CAT, is common. CAT happens because of shifting air currents high in the atmosphere, but pilots are very familiar with it. As you head northeast, you'll then cross the Sierra Nevada and the Central Rockies. These mountain ranges can create what's called mountain wave turbulence; air flows over the mountains and creates waves, like in a stream, which can cause bumps. It's all a normal part of flying over mountainous terrain and something pilots are trained to handle effectively. It's good to remember that these are normal, predictable weather patterns that pilots navigate daily; they're not surprises.

Flights between San Francisco and Salt Lake City cross the Sierra Nevada, a steep mountain barrier in eastern California. The Sierra generates some of the most intense rotor and wave turbulence in the world — the famous "Sierra Wave" can reach the stratosphere. East-side downdrafts are especially sharp, and flights into or out of Reno or the Central Valley often feel the effects.

Turbulence Factors on This Route

• Clear-Air Turbulence (CAT): Pacific jet streaks arriving onshore drive upper-level clear-air turbulence along the West Coast.
• Mountain Wave Turbulence: The Sierra Nevada produces the well-known Sierra Wave, one of the strongest mountain wave systems in North America.

When Is This Route Bumpiest?

For the smoothest flight, aim for the summer or early fall. The air tends to be more stable during these times, lessening the chances of mountain wave turbulence as the air flows more smoothly over the Sierra Nevada and Central Rockies. Winter and early spring, as well as spring itself, tend to be the bumpier seasons. This is when the jet stream is stronger and more erratic, creating more clear-air turbulence. The mountains also have more influence on the air in colder months, increasing the likelihood of mountain wave effects, especially over the Sierra Nevada.

Tips for This Flight

If you're concerned about turbulence, booking a morning flight is often your best bet because the air is usually calmer earlier in the day. Any turbulence you might encounter on this route will likely feel like driving on a road with potholes or a boat gently rocking. To help stay comfortable, choose a seat over the wing; it tends to experience less motion. Remember to stay hydrated, and focus on slow, deep breaths to help you relax and feel more in control. The flight crew is there to assist you, and they are well-prepared to handle any conditions that arise.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.