Salt Lake City to Kona Turbulence Forecast

SLC → KOA · 2,963 miles · ~6h 26m

What to Expect

The flight from Salt Lake City to Kona covers almost 3000 miles, and it's true that there are a few spots known for turbulence. Shortly after takeoff, you'll be crossing the Central Rockies and then the Sierra Nevada, which can cause what's called mountain wave turbulence, when the wind currents are disrupted by the mountains. Later, as you approach the Pacific Coast, you might experience clear-air turbulence, often abbreviated CAT. Finally, over the open Pacific, there's the possibility of oceanic clear-air turbulence, as well as bumps from oceanic convection, which is like heat rising off the ocean, creating air currents. All of these types of turbulence are very common and well-understood phenomena, and pilots are trained to anticipate and navigate them, often adjusting altitude to find smoother air. They're constantly monitoring conditions and communicating with other aircraft to ensure a safe and comfortable flight.

Between Salt Lake City and Kona, the flight path crosses the Central Rockies of Colorado and Utah. This area is one of the most turbulence-prone zones in the U.S., with mountain wave activity reported on more than half of winter days. Waves can propagate far downstream, meaning turbulence may begin well before or after the visible peaks.

Turbulence Factors on This Route

• Mountain Wave Turbulence: The Central Rockies produce frequent, sometimes severe, mountain waves that can extend 100+ miles downstream.
• Clear-Air Turbulence (CAT): Pacific jet streaks arriving onshore drive upper-level clear-air turbulence along the West Coast.
• Oceanic Convection: Isolated thunderstorms over warm Pacific waters can develop away from radar coverage, catching flights off guard.

When Is This Route Bumpiest?

For the smoothest possible flight from Salt Lake City to Kona, aim for summer or early fall. Generally, the air currents are more stable during these months, which minimizes the chances of mountain wave turbulence over the Rockies and Sierra Nevada. Winter and early spring tend to be the bumpiest times, as stronger winds interacting with the mountains create more significant mountain wave turbulence. Late summer also has the potential for increased turbulence due to summer storm patterns and possible CAT, while spring can be a mixed bag, sometimes calm and sometimes experiencing lingering winter weather patterns.

Tips for This Flight

If you're concerned about turbulence, consider booking a morning flight from Salt Lake City, as the air tends to be calmer earlier in the day. Any turbulence you experience on this route will likely feel like driving on a slightly bumpy road, or perhaps a sudden dip like going over a small speed bump. Choosing a seat over the wing can sometimes offer a slightly more stable experience. Remember to stay hydrated, and focus on slow, deep breaths to help manage any anxiety you might feel. The pilots and crew are there to ensure your safety and comfort, and they're well-equipped to handle any bumps along the way. You'll be enjoying the beautiful beaches of Kona before you know it.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.