From Environment Canada:

Frost advisory in effect for:

• Halifax Metro and Halifax County West

Frost may damage some crops in frost-prone areas.

Minimum temperatures: minus 4 inland to plus 3 along parts of the coast.

Locations: Nova Scotia.

Time span: overnight and early Wednesday morning.

Remarks: Frost is expected to form tonight as clear skies and light winds coincide with cool temperatures, especially in low lying areas.

Cover up plants, especially those in frost-prone areas.

Frost advisories are issued when temperatures are expected to reach the freezing mark during the growing season, leading to potential damage and destruction to plants and crops.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to NSstorm@canada.ca or tweet reports using #NSStorm.