A Tropical Cyclone Watch has been issued for areas between Cape Mellville to Townsville.
Jasper is forecast to maintain tropical cyclone intensity as it tracks westwards towards the Far North Queensland coast.
The cyclone has been downgraded to a category 1 but is expected to strengthen to a category 2 before making landfall on Wednesday, most likely between Cape Flattery and Cardwell.
Damaging winds and heavy rainfall can be expected between Cooktown and Ingham from tomorrow.
There is a moderate chance that Jasper could redevelop in the Gulf of Carpentaria during Friday or over the weekend.
As the cyclone approaches the coast, abnormally high tides are possible and large waves are likely along the coast.
Communities in these areas are advised to review their cyclone plan.
For cyclone preparedness and safety advice, check with your local council or emergency services.