When checking the weather what does the pressure tell you?

Question

When checking the weather what does the pressure tell you?

In: 503

Answer 1

Pressure alone does not do much, but pilots need it for their altitude measurement.
Changes in pressure over time can indicate special weather patterns like so called “fronts” which, depending on the type, bring along some special weather types. Pressure maps can give you wind direction of strength, because wind flows along lines of equal pressure and the closer those lines are, the higher the wind speed.