Describe how and explain why the isotherm deviates from a true east-west trend where it crosses from the pacific ocean onto the continent

The coldest temperature in winter and the lavish temperatures in summer are found over the continents. The isotherm, while passing from continents to oceans; get distorted at their margins. In the eastern part of the North Atlantic, the isotherm shows a larger amount odd deviation toward north due to the combined effect of the warm ocean currents of the Gulf Stream and the North Atlantic Drift, and the southerly winds.