If isobars are closely spaced together, what weather feature is expected?

If isobars are closely spaced together, what weather feature is expected?

• A. Light winds
• B. A tight pressure gradient with high and gusting winds
• C. Calm conditions
• D. No change in weather

Answer: (B)

Closely spaced isobars signal a steep pressure gradient, which accelerates the air and produces strong winds. The tighter the gradient, the higher the wind speeds, and that air flow is often gusty near the surface due to friction and small-scale variations. If the isobars were farther apart, winds would be lighter or calm. So the weather feature expected is a tight pressure gradient with high and gusting winds.

Closely spaced isobars signal a steep pressure gradient, which accelerates the air and produces strong winds. The tighter the gradient, the higher the wind speeds, and that air flow is often gusty near the surface due to friction and small-scale variations. If the isobars were farther apart, winds would be lighter or calm. So the weather feature expected is a tight pressure gradient with high and gusting winds.