the wet weather is set continue once the tournament gets underway on thursday april 9 .
the typically warm and humid georgia weather is expected to be unsettled by a cold front heading into augusta for the weekend , which is likely to bring more showers and thunderstorms , especially on friday and saturday .
world no 1 makes his way through the rain ahead of his bid to complete a career grand slam .
dark clouds gather over the course as england 's lee westwood practices his putting .
the practice round ahead of the tournament was disrupted by bad weather in augusta .