Increasing high cloud from the west today as a frontal system approaches. Warnings and Watches are in place for heavy rain for the western South Island this afternoon through tomorrow afternoon, and northerly gales could also become severe in these places as well. There is also a chance for some thunderstorms with heavy rain embedded in the front along the west coast of the South Island tomorrow, mainly south of Westport. Tomorrow the rain spreads across the North Island as well, and a Watch is in place for the Coromandel Peninsula and western