Why do pilots avoid storms?

There are many flights that cross the triangle every day. So, yes planes can and do fly in the triangle. Pilots try to avoid thunderstorms because the hail, lightning and severe up and down droughts can cause serious damage to any aircraft flying through or near a large thunder cloud.



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Today's planes are better built than in the past, but are not “built to withstand” they are built to avoid. Strong storms are violent and dangerous and the ride they would give the plane and its passengers would be very rough, likely to cause injury and could over-stress the airframe to the point of failure.

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Rain is just water, no matter the pressure. Modern aircraft can generate lift regardless of the heaviness of the rain. Planes can and will take off and land in the rain. The only real problem with heavy rainfall is the decrease in visibility for the pilots.

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Keep Your Distance The FAA recommends you stay at least 5 miles from any visible storm cloud, but they strongly recommend increasing the distance to 20 miles or more if you can. Hail, violent turbulence, and strong downdrafts can extend miles away from a thunderstorm.

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During harsh weather, pilots will determine what control inputs they will require during takeoff. The crosswind might attempt to lift a wing and force the aircraft to move away from the runway heading. Preventing this situation is usually achieved by using the rudder input to keep the plane from rolling.

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Private pilots are forbidden from intentionally flying into clouds without an instrument certificate and on an IFR plan. Others may deviate around those “clouds” which display heavy precipitation on their radar but, otherwise, pilots fly their airplanes through clouds all the time.

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While modern aircraft are capable of flying over, or even through, hurricanes, safety risks remain, and carriers usually halt operations are the affected airports instead.

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Crosswinds greater than 50-60 km/h may cause airlines to delay or cancel flights. Even lower gusts can trigger flight delays or cancellations if the runways are wet or icy, as stiff winds can reduce a plane's ability to brake on the runway.

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Landing into the wind has similar advantages; less runway is needed and ground speed is lower at touchdown. Landing in crosswinds and tailwinds make takeoff and landing more challenging and at times can mean it is not possible to attempt either.

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In fact, the National Weather Service says passenger planes are struck by lightning an average of once or twice every year. But the last confirmed commercial airplane crash in the United States attributed to lightning occurred in 1967.

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While high winds (a crosswind above 40 mph and a tailwind above 10 mph) can occasionally prevent planes from taking off or landing on time, winds won't put your flight in any danger.

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Turbulence is a sudden and sometimes violent shift in airflow. Those irregular motions in the atmosphere create air currents that can cause passengers on an airplane to experience annoying bumps during a flight, or it can be severe enough to throw an airplane out of control. (The pilots) aren't scared at all.

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Sometimes it's unavoidable to fly through light and moderate turbulence, but rest assured your pilots are working to find smooth air. If they encounter severe or extreme turbulence not forecasted, pilots will quickly climb or descend to a safe and smooth altitude.”

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While pilots can't actually see turbulence, they often know what is coming up, thanks to reports from other planes, weather reports, and radar equipment. However, clear air turbulence (severe turbulence occurring in cloudless areas) can sometimes catch pilots off guard.

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Turbulence, associated with thunderstorms, can be extremely hazardous, having the potential to cause overstressing of the aircraft or loss of control. Thunderstorm vertical currents may be strong enough to displace an aircraft up or down vertically as much as 2000 to 6000 feet.

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While thunderstorms can be quite visible when they are flashing and banging, they don't display either of these characteristics during certain stages. In the case of commercial aircraft, pilots will utilize a weather radar. Information regarding thunderclouds will be displayed on their navigational displays.

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