Portland Maine to Savannah Turbulence Forecast

PWM → SAV · 991 miles · ~2h 29m

What to Expect

Your flight from Portland, Maine (PWM) to Savannah (SAV) covers around 991 miles southwest, and you'll be in the air for about 2 hours and 29 minutes. Because of the varied terrain below, you may experience different types of turbulence along the way. Expect some clear-air turbulence (CAT) as you fly along the Atlantic Seaboard. Later, as you cross the Northern and Southern Appalachians, you might feel mechanical turbulence, which is caused by the wind interacting with the mountains. Finally, approaching Savannah, you could encounter convective turbulence, especially if it's a warm day, as rising warm air creates bumps. Pilots are very familiar with these weather patterns, and they constantly monitor and adjust the flight path to ensure a safe and comfortable journey.

The Portland Maine to Savannah corridor follows the Atlantic Seaboard, where the polar jet stream frequently sets up along the coastline during winter months. The sharp temperature contrast between cold continental air and the warm Gulf Stream creates turbulent mixing zones at altitude, making clear-air turbulence (CAT) especially prevalent between 30,000 and 40,000 feet.

Turbulence Factors on This Route

• Clear-Air Turbulence (CAT): The Atlantic coast jet stream and land-sea temperature contrasts create frequent clear-air turbulence at cruising altitude.
• Mechanical Turbulence: The Northern Appalachians generate low-level mechanical turbulence during strong post-frontal northwest winds.
• Convective Turbulence: The warm, humid Southeast interior supports frequent thunderstorm development, particularly during afternoon hours.

When Is This Route Bumpiest?

For the smoothest possible flight, aim for late fall, fall, or spring. Summer, early fall, and winter tend to be a bit more turbulent on this route. In summer, the Southeast Interior's convective turbulence can be more pronounced, due to increased warm air rising. Winter can bring more frequent clear-air and mechanical turbulence as weather systems move through the Appalachian Mountains, disturbing the airflow.

Tips for This Flight

Booking a morning flight is often your best bet, as the air tends to be calmer before the day heats up and creates more convective activity. Any turbulence you might experience on this route is likely to feel like driving over a series of small potholes in the road, not anything alarming. For extra comfort, choose a seat over the wing, which tends to experience less motion, and remember to stay hydrated; dehydration can amplify feelings of anxiety. Focus on slow, deep breaths to help you relax and remember that the crew is highly trained to handle any situation.

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Forecasts based on NOAA HRRR and GFS atmospheric model data.