The Avalon Peninsula and other areas of the island part of the province may be under sunny skies today, but freezing rain, and strong winds are expected to begin overnight.
Environment Canada radar image.
This weather system comes as the province is trying to recover from massive power blackouts and a major blizzard on the weekend.
Up to 30 to 55 millimetres of rain can be expected overnight and into Tuesday, according to Environment Canada.
A low pressure system over southwestern Quebec is forecast to rapidly intensify as it tracks northeastward to lie over Northern Quebec by this evening. An associated warm front will cross Newfoundland tonight.
Strong southeasterlies will spread across the island tonight with the front. The strongest winds will occur over western Newfoundland.
In addition, ice pellets and freezing rain are expected to spread across Newfoundland ahead of the warm front.
Freezing rain warnings have already been issued for parts of western Newfoundland and may need to be extended to northern and eastern regions later today.
The freezing precipitation will change to rain by early Tuesday as temperatures rise.
The heaviest rain is expected over southern parts of the island and the higher elevations of the west coast.
Environment Canada also notes the combination of rain and mild temperatures may lead to significant snow melt, creating the possibility of localized flooding.
West coast: southeast winds gusting between 120 and 160 km/h are expected tonight along the west coast for areas, such as Bonne Bay, prone to downslope winds. Winds will diminish early Tuesday morning.
Areas under a freezing rain warning: an extended period of freezing rain is expected to develop this evening.
Areas under a rainfall warning: freezing rain or ice pellets will change to heavy rain late tonight as temperatures rise above freezing. Total rainfall accumulations of 30 to 55 millimetres are expected by Tuesday afternoon. Heavy rain, strong southerly winds and snow melt will combine to give a risk of local flooding.