Anterior lobe of pituitary gland is

A major organ of the endocrine system, the anterior pituitary (also called the adenohypophysis or pars anterior) is the glandular, anterior lobe that together with the posterior lobe (posterior pituitary, or the neurohypophysis) makes up the pituitary gland (hypophysis).

Explanation:

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.