Why Planes Don’t Simply Fly Straight Through Atlantic Storms
Have you ever looked at a flight map and wondered why an airplane seems to take a strange route across the Atlantic instead of simply flying straight toward its destination?
The answer becomes much more interesting when the weather turns dangerous.
Thousands of aircraft cross the Atlantic every year. But pilots don’t simply choose the shortest line between two cities and follow it regardless of what is happening in the sky.
Above the ocean, powerful weather systems can develop and change surprisingly quickly.
One of the biggest factors is the jet stream—a narrow band of extremely fast-moving air high in the atmosphere. Its position and strength can dramatically affect flight time and fuel consumption. Airlines therefore plan routes around the winds rather than treating the shortest geographical distance as the best route.
Then there is turbulence.
Some of the strongest turbulence encountered by commercial aircraft can occur near powerful jet streams. When pilots receive information indicating dangerous turbulence, thunderstorms, icing, or other hazardous weather, they can request a different route or altitude.
And this is where the story becomes fascinating.
There is no permanent invisible highway across the Atlantic.
Instead, organized North Atlantic routes are adjusted according to changing conditions. Pilots and air traffic controllers work with constantly updated weather information to determine how aircraft should cross the ocean safely and efficiently.
During major storms, an aircraft may have to travel considerably farther than originally expected.
It might sound inconvenient, but there is a good reason.
A thunderstorm isn’t simply a patch of rain that an airplane can casually fly through. Powerful storms can contain severe turbulence, lightning, hail, strong updrafts and downdrafts, and dangerous wind shear. NASA notes that these conditions can make transoceanic weather particularly challenging because there is less detailed radar coverage over the middle of the ocean.
So when you look out the airplane window and see nothing but clouds and ocean beneath you, there is actually an enormous amount of planning happening behind the scenes.
The aircraft may appear to be taking a strange detour.
But that detour could be the result of a changing jet stream, a storm system ahead, turbulence forecasts, air-traffic restrictions, or a combination of several factors.
And sometimes, the safest route is simply not the shortest route.
That is why pilots don’t just fly straight through an Atlantic storm.
They watch it.
They track it.
They calculate around it.
And when necessary, they change the route completely.
The next time your transatlantic flight appears to take a surprising turn on the flight map, remember: that unusual-looking path may be the result of thousands of calculations designed to get you across the ocean as safely and efficiently as possible.
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