Where in a hurricane is the atmospheric pressure lowest, and approximately what is that pressure?

Question

​Where in a hurricane is the atmospheric pressure lowest, and approximately what is that pressure?

BlackTom AI · Accepted Answer

To begin, let's outline what is being asked: where in a hurricane is the atmospheric pressure the lowest, and what is the approximate value of that pressure?
Option A: 'lowest in the zone of high winds, just outside the eye; about 950 millibars' This would misplace the minimum pressure away from the core. In hurricanes, the deepest low pressure is typically centered near the eye, not just outside it, so this option underestimates the central pressure region and incorrectly locates the minimum.
Option B: 'lowest just outside the eye wall; about 920 millibars' The eye wall surrounds the eye and experiences strong winds, but the lowest pressure is not outside the eye wall; the center of the storm—the eye—has the lowest pressure, and 920 millibars is unrealistically low for the typical hurricane core pressure.
Option C: 'lowest in the eye; about 960-970 millibars' This aligns with standard meteorological understanding: the eye is the center of the hurricane where the pressure is at its minimum, and typical values for many hurricanes fall in the around 960–970 millibars range, though exact numbers vary with storm strength. This option correctly identifies both the location and the approximate pressure.
Option D: 'lowest in the zone of high winds, midway between the eye and its outer fringes; about 900-910 millibars' This description places the minimum pressure away from the calm center and in the windy outer regions, which contradicts the well-established fact that the lowest pressure is at the core. The 900–910 millibar range would imply an extraordinarily intense system beyond typical expectations for the hurricane core pressure.
Option E: 'lowest in the eye; about 1200-1300 millibars' This value is far higher than typical hurricane central pressures; 1200–1300 millibars would correspond to much weaker, high-pressure conditions not characteristic of hurricane centers, making this option inaccurate both in location and magnitude.
Across the options, the central ideas to verify are: the minimal pressure in a hurricane occurs at the eye (the storm’s center) and the numerical range for central pressure is generally in the hundreds of millibars, with actual values commonly around the mid-to-high 900s to low 970s for many hurricanes. Any option that places the minimum pressure outside the eye or assigns an implausibly high or low numerical value diverges from established atmospheric science principles. The most accurate combination among the choices is the third option, which states the lowest pressure is in the eye and is about 960–970 millibars, matching typical central-pressure characteristics of hurricanes.

Where in a hurricane is the atmospheric pressure lowest, and approximately what is that pressure?单项选择题

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​Where in a hurricane is the atmospheric pressure lowest, and approximately what is that pressure?单项选择题