Palm Springs to Kona Turbulence Forecast

PSP → KOA · 2,606 miles · ~5h 43m

What to Expect

That Palm Springs to Kona route definitely has some unique characteristics, turbulence-wise, but nothing out of the ordinary. Departing from Palm Springs (PSP), you'll first cross the Mojave and Sonoran Deserts, where you might experience what's called thermal turbulence, caused by the sun heating the ground unevenly. As you approach the Pacific Coast, you could encounter clear-air turbulence, or CAT, which occurs in the absence of clouds. Once over the vast expanse of the Open Pacific, there's also the possibility of oceanic clear-air turbulence and oceanic convection, which is caused by rising warm air over the ocean. Pilots are highly trained to anticipate and navigate these conditions, constantly monitoring weather patterns and adjusting altitude as needed to ensure a safe and comfortable flight. They do this every single day.

The Palm Springs to Kona route traverses the Open Pacific, where oceanic clear-air turbulence and convective activity over warm tropical waters are the primary concerns. Transpacific jet stream crossings can be especially bumpy in winter, and isolated convective cells over open water may not appear on standard weather radar used by dispatchers.

Turbulence Factors on This Route

• Thermal Turbulence: Extreme desert heating generates strong thermal updrafts that cause low-to-mid-level turbulence, especially in summer afternoons.
• 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 ride, consider flying this route in winter, fall, summer, early fall, spring, or early summer. The bumpier times tend to be summer, winter, early spring, and late summer. During these times, the increased solar heating over the deserts generates stronger thermal updrafts, increasing the chance of desert turbulence. Also, seasonal weather patterns over the Pacific can sometimes lead to more frequent clear-air turbulence.

Tips for This Flight

If you're concerned about turbulence, booking a morning flight often provides a slightly smoother experience, as the ground hasn't had as much time to heat up and create those thermal updrafts. Any turbulence you experience on this route will likely feel like driving over a slightly bumpy road; it's more of an annoyance than a danger. For extra comfort, consider choosing a seat over the wing, which tends to experience less motion, and remember to stay hydrated. Taking slow, deep breaths can also help calm your nerves, knowing that the pilots are well-prepared for any bumps along the way.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.