isobar

Do you know your cold fronts from your isobars?

When isobars — lines of constant pressure — are packed tightly together, and move into the D.C. region rapidly, this leads to a strong pressure surge, generating powerful wind gusts.

Its pressure isobars are spaced far apart; there is little wind speed.

When we ran out of ways to tart up the lowly isobar, we went off-planet.

He was recognised for his Scottish accent and known for his exuberance and ceaseless enthusiasm for anticyclones, warm fronts and isobars during his career.