Anchorage to Phoenix Turbulence Forecast

ANC → PHX · 2,548 miles · ~5h 36m

What to Expect

The Anchorage to Phoenix route presents a mix of conditions due to the diverse terrain it crosses. Soon after departing Anchorage, you'll be over the Pacific Coast, where clear-air turbulence, or CAT, can occur. This is often invisible and caused by differing air speeds. As you move inland, you'll be flying over the Cascades, and mountain wave turbulence is possible here, caused by wind flowing over the mountains. Later, as you approach Phoenix, you'll cross the Mojave and Sonoran Deserts. This section is prone to thermal turbulence. The sun heats the ground unevenly creating rising warm air, and sinking cooler air, which results in those familiar, but usually light, bumps. While these are all common phenomena, pilots are highly skilled in navigating these conditions.

The flight between Anchorage and Phoenix passes over the Cascades, the volcanic mountain chain stretching from northern California through Washington. When moist Pacific air is forced up and over the Cascades, it creates both orographic turbulence and downstream wave activity. The terrain is especially steep near major volcanoes like Mount Rainier, amplifying the effect.

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 Cascades create lee waves and orographic turbulence, especially when Pacific weather systems push moist air over the range.
• 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 calmest flights on the Anchorage to Phoenix route are often during the summer and early fall. The air is typically more stable, and thermal activity over the deserts is less intense. Winter, early spring, and fall tend to be bumpier. Winter and early spring can bring stronger winds aloft, contributing to clear-air turbulence and mountain wave turbulence. Fall can also see increased wind activity, plus more significant temperature contrasts that stir up thermal activity.

Tips for This Flight

Opt for a morning flight for a slightly smoother experience, as thermal activity tends to ramp up later in the day. Any turbulence you encounter on this route will likely feel like driving on a slightly bumpy road or a gentle rocking sensation. Choose a seat over the wing for a more stable feel and remember to stay hydrated; dehydration can amplify feelings of anxiety. Take slow, deep breaths and remember that the pilots are well-prepared to handle any weather conditions. You'll be in Phoenix before you know it.

Get Your Forecast

Related Routes

See all routes from Anchorage or to Phoenix.

More from Anchorage

More to Phoenix

Forecasts based on NOAA HRRR and GFS atmospheric model data.