Parts of Queensland's North Tropical Coast received a third of their monthly average rainfall last night. A stream of tropical moisture feeding into a low pressure trough is causing a multi-day soaking in northern Queensland. The heaviest falls during the 24 hours to 9am on Monday occurred along the coast and adjacent inland around Innisfail and Tully. A rain gauge at Japoonvale registered a whopping 353mm, while Cowley Beach saw 230mm. South Johnstone's 194mm and Innisfail's 166mm during the last 24 hours were about one third of the February average for both locations. It was also their heaviest daily rainfall in more than a year. A flood watch has been issued for river systems along the North Tropical Coast between Cooktown and Rolling Stone, with further heavy falls expected in the region today and on Tuesday. Visit http://www.weatherzone.com.au/warnings.jsp for the latest flood watches and warnings.