Will lightning cancel a flight?

Flights may be canceled due to wind, precipitation, fog or low visibility, lightning, low clouds, or storms. Outside temperature does not always affect flights. Pilots make the final determination as to whether a flight will occur or whether one in progress will be diverted to another airport.



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Call the Airline or Check Its Website Often When you have an upcoming flight, you can typically get information on any potential delays or cancellations by calling the airline often or checking its website.

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What can cause a cancellation? Flights may be canceled due to wind, precipitation, fog or low visibility, lightning, low clouds, or storms.

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Such standards were implemented after a severe lightning strike accident occurred involving a Pan Am Boeing 707. The jet exploded in flight after vapors in the fuel tank ignited.

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What does IATA say about airport lightning rules? The International Air Transport Association (IATA) says to issue lightning alerts at 5 miles (8 km) and stop operations at 3 miles (5 km). They suggest using a 3-mile critical radius and resuming operations once the lightning activity has moved beyond this radius.

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The inability to ready aircraft for departure during ramp closures will result in a delayed gate pushback time (on average amounting to several tens of minutes per affected fight).

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Thunderstorm and especially lightning pose a safety risk to airline and airport personnel that work outdoors servicing gate-side parked aircraft and maintaining airport grounds. Thus, airport and airline stakeholders at major airports employ procedures to ensure the safety of their outdoor workers.

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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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You might be wondering, is turbulence strong enough to cause a plane to crash? The answer is: it's extremely rare. Modern aircraft are designed to withstand turbulence and continue flying safely. In fact, planes undergo rigorous testing to ensure they can endure the forces of turbulence.

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“It is 'normal' to expect around 1 to 2 percent of flights to be canceled,” said Gary Leff, author of ViewFromTheWing.com. He added that around 20 to 25 percent of flights are late by at least 15 minutes, though it's harder to track the range of how delayed flights are.

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What can cause a cancellation? Flights may be canceled due to wind, precipitation, fog or low visibility, lightning, low clouds, or storms.

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With this in mind, horizontal winds (also known as “crosswinds”) in excess of 30-35 kts (about 34-40 mph) are generally prohibitive of take-off and landing.

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This happens because an aircraft's fuselage, or body, acts as a Faraday cage (a container that blocks electromagnetic fields). Energy and electric charge from the lightning bolt run around the outside of the vessel, protecting the interior from any voltage.

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