isallobar
/aɪˈsæləˌbɑr/
noun
- A line on a weather map connecting points where the change in atmospheric pressure over a given time is the same.
- The meteorologist drew isallobars to show where pressure was rising most rapidly.
- Understanding isallobars helps pilots predict areas of turbulence.
- On the forecast map, the isallobars were closely spaced, indicating a fast-moving storm system.