the bad weather and the flight

The planes are built to keep us in the air under various climatic conditions. the weather is often one of the reasons given by airlines for delays or cancellations.

You leave your hotel air-conditioned in the south of Italy and you walk outside in a crushing heat. When you reach the taxi stand you are out of breath and soaked with sweat.

Most people feel soft under a scorching heat - acting in the heat requires a lot of energy. But planes have an excuse - a scientific reason - for not being able to operate when the temperature is high; hot air is lighter than cold air. An airplane engine has to push against the cold, dense air to get up.

When the air is light and warm, the aircraft engine must operate much faster to take off from the ground. Smaller planes and short runways are useless when it's very hot.

You wear six layers of polar clothing and you still do not feel your fingers frozen. It is advisable to stay safe because of extreme temperatures.

The icy temperatures themselves are not a problem for the plane. After all, planes are designed to fly at high altitude where the temperature can reach 50 degrees below zero. Your flight will not be canceled solely because of the cold.

Unfortunately, people do not work as well in the cold as airplanes. If people can not be safe outside for long periods of time, airport activities can be paralyzed. Routine interviews take longer as workers protect themselves from the cold and shelter. Equipment used for refueling can freeze.

Everything is covered with a thin coat of fresh snow. The weather report warns that there will be more during the day but it is not yet a storm. You are sure that your flight will leave on time.

Unfortunately, even a small amount of snow can cause major disturbances in some places, slow down airport operations and therefore limit the number of flights in the sky. In these cases commercial decisions are made by the airlines. Some flights will leave because keeping them on the ground would cost the airlines too much money. Others will be held on the ground. This is one of the times when life is not fair and you will have to reach your flight compensation calculator.

It's a nice crisp winter morning, but there's a trickle of occasional freezing rain.
Can this little ice cancel your flight ? absolutely. Ice can ruin the conditions of the runway, it can make it too slippery for takeoff and cause cracks in the tarmac. But the effects of ice on the plane are even worse. 

Some of us are hiding under the covers during thunder and lightning. An airplane is definitely the last place you want to be when electric rays cross the night sky?

In a word, no. It is highly likely that the plane you are going to climb has already been hit several times by lightning. On average, each plane will be struck by lightning at least once every two years. Lightning typically affects one end of the aircraft - the tip of the nose or the tip of the wing. After that, the electricity travels to the body of the plane and comes out from behind. You will not feel any pain. You will only notice this because the pilot can inform you that the plane must land for routine checks. When leaving the plane, you will see a black spot on the fuselage. Other than that, nothing. Lightning does not cause the cancellation of flights, But storms accompanied by wind and rain though.

How bad must the weather be for a flight to be canceled?

It's been raining for days. You can not wait to go on vacation and lie in the sun, you really hope that the flight will not be delayed or canceled.

Ordinary rain is not a reason to cancel a flight but when it is associated with the wind it can be dangerous. Rain can also be a threat at the time of landing. Like a car, the plane can skid to the surface of stagnant water and hydroplane. If you've ever experienced this in a car, you know how terrifying it can be to discover that your brakes and steering are useless. A pilot may try to avoid slipping by landing more firmly on the runway than usual. Landing can be hard but safer than hovering on the runway.

Thick fog

You look out the window and everything is white. You imagine the pilot scanning the window to see the shapes in the thick fog. You do not want to crash into the new skyscraper in Paris.

As long as the main aircraft systems and multiple backups all work properly, the pilot can engage autopilot and the aircraft can land alone. The pilot controls the height and direction of the aircraft as usual, but the ability to see outdoors is not necessary for a safe landing.

Wind

Storms are said to be as dangerous to planes as hurricanes because of the unpredictable wind. The wind is very dangerous, especially during take-off and landing.

Airplanes fly with the wind in the back - this is safer and more energy efficient. The wind at the front is also normal, planes are designed to be weathervanes in the wind. Side winds are the biggest challenge for pilots, especially during take-off and landing.
During takeoff a side wind of 38 km/h can deflect an aircraft from its course.