UPDATE: A severe storm warning has been issued across the Tablelands while a further two Far North rivers are now on flood watch.
Wild weather has begun impacting areas south of the Far North with 58mm recorded in an hour at Upper Bluewater west of Townsville this afternoon and the system is continuing to move north.
Predictions of falls of up to 300mm in 24 hours remain in place for some locations during the weather event which is likely to continue throughout Monday and Tuesday.
The Bureau of Meteorology has extended its flood watch to both the Daintree and Mossman Rivers.
The thunderstorm warning includes Mareeba, Forsayth, Einasleigh, Atherton, Lyndhurst Station, Rollingstone, Millaa Millaa, Ravenshoe and Gregory Springs.
The storms are likely to produce heavy rainfall which may lead to flash flooding in the warning area over the next several hours.
TORRENTIAL rainfall of up to 300mm per day is forecast to begin hitting the Far North by this evening with the weather bureau already issuing flood watches for multiple rivers.
Areas between Cardwell and Cairns are expected to face the brunt of the wet weather which is due to stick around until late Tuesday.
An initial flood watch has been issued for the Mulgrave, Russell, Johnstone, Tully, Murray and Herbert Rivers with levels predicted to rise tomorrow and Tuesday.
Bureau of Meteorology duty forecaster Rick Threlfall said the Cassowary Coast would cop the heaviest totals initially, although this would extend to Port Douglas and Cooktown by Tuesday.
He said the wet weather was being brought on by a slow moving south-easterly wind change coming through the area.
Thunderstorms may also affect the Tablelands and Cape York later today.