Even a degree of temperature change can alter a flight plan

UNITED STATES – From thunderstorms and limited visibility to scorching temperatures and turbulence, the weather dictates when and where planes can fly.Aviation meteorologists plan for and around difficult conditions, crafting weather forecasts used to determine the nuances of flights, from altitude to optimal routes. They play an essential role in ensuring travellers get to their destinations safely and efficiently.

We write our own forecasts for the 10 main Delta hubs in the US. One of the things that makes us unique is that we are the sole weather provider for Delta. We are in two modes here: surface weather and upper air. Surface conditions are visibility, precipitation and clouds. On the upper-air side, we are mostly watching for turbulence, the primary threat.

We update the forecasts hours before flights take off. If anything changes, all we have to do is walk over to the dispatchers to suggest areas to avoid or a different altitude. Another could be thunderstorms en route. That could cause planes to fly a different and longer route.

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