Anchorage to Las Vegas Turbulence Forecast

ANC → LAS · 2,301 miles · ~5h 6m

What to Expect

Your flight from Anchorage to Las Vegas, heading southeast over 2301 miles, presents a mix of well-understood turbulence patterns. Shortly after takeoff, as you cross the Pacific Coast, you might encounter clear-air turbulence (CAT), which is often invisible but can cause brief bumps. Further along, as you fly over the Cascades, you could experience mountain wave turbulence, where air flows over the mountains creating wave-like motions. Finally, as you approach Las Vegas and fly over the Mojave and Sonoran Deserts, thermal turbulence, caused by rising warm air, is common. These types of turbulence are very familiar to pilots, who are trained to anticipate and navigate them safely. They are a normal part of flying, influenced by the geography and weather patterns of the regions you'll be crossing.

The flight between Anchorage and Las Vegas 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 summer and early fall months tend to offer the smoothest rides on this route. The air is generally more stable, especially over the desert regions. Conversely, winter, early spring, and fall can bring more turbulence. During the colder months, stronger jet streams can intensify clear-air turbulence near the coast. Also, the temperature differences between the mountains and surrounding air can lead to increased mountain wave turbulence, while desert thermal activity is generally present year-round, it tends to be more pronounced in warmer seasons.

Tips for This Flight

Choosing a morning flight is often the best way to minimize turbulence, as the air tends to be calmer earlier in the day. Any turbulence you encounter on this route will likely feel like driving over a series of potholes, rather than something more dramatic. To stay comfortable, select a seat over the wing, which is the most stable part of the plane, and remember to stay hydrated. Taking slow, deep breaths can also help you relax. Remember, the pilots are well-prepared for any bumps, and your comfort and safety are their top priorities.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.