Parts of the Cape York Peninsula have seen the heaviest December rain in years as Ex-Tropical Cyclone Grant approaches. The monsoon low, which has remained below tropical cyclone strength since Monday, is now moving eastwards across the Gulf Of Carpentaria. The latest computer models indicate that this system is not expected to redevelop into a Cyclone and will cross the Queensland coast near Cape Keer-Weer early on Friday morning. After days of drenching rain over the Northern Territory's Top End, the heaviest falls moved into the Gulf on Wednesday. As these falls were dragged east by the low, rain intensified over the Cape York Peninsula as the system approached. Western parts of the Peninsula saw the fist of the approaching heavy rain from Wednesday night. Kowanyama received 70mm in the 24 hours to 9am Thursday, their heaviest rain since March and wettest December day in four years. The heaviest falls this morning were in and around Weipa, which collected 50mm. Heavy rainfall and damaging winds will remain a threat across the Peninsula on Thursday and Friday, with abnormally high tides expected to develop for coastal areas. Thankfully, the low will continue moving in an easterly direction allowing the heavy falls to contract away from the coast on Saturday. The system will then move further into the Coral Sea before breaking up into next week.