the most important feature of the eye, its plummeting pressure. Normal pressure at sea level is 29.92126 inches, or 14.6969 pounds per square inch. In the wall of the eye, spiraling and ascending winds lift air at over a million tons per second. As the air soars, pressure at the surface falls. Air within the eyewall rises with so much force it literally lifts the surface of the sea, one foot for each one inch of barometric decline. The lowest barometric reading ever recorded was 26.22 inches, during Hurricane Gilbert in 1988. Gilbert raised the level of the sea by over three feet.
