The main benefit of pleading no contest is that the conviction canât be used against you later in a civil (non-criminal) lawsuit that may come out of the criminal activity.
Surface atmospheric pressure in the center of a hurricane tends to be extremely low. The lowest pressure reading ever recorded for a hurricane (typhoon Tip, 1979) is 870 millibars (mb). However, most storms have an average pressure of 950 millibars. To be classified as a hurricane, sustained wind speeds must be greater than 118 kilometers per hour at the storm's center.
Gradient refers to the change in pressure with distance. Look at the Hawaiian Islands area again. The pressure difference between isobars is 4 mb (1020 - 10160 mb) and the distance between them is about 600 kilometers (370 miles). The PGF on that day, therefore, was 4 mb per 600 km or about 0.07 mb/km, a normal trade wind condition. The PGF sets air in motion and determines wind speed. The higher the pressure gradient, the greater the wind speed as shown in the diagram below. In the diagram's left panel, the total pressure change is 8 mb (1020 - 1012 mb), causing relatively light winds.