UPDATE: Environment Canada ended the thunderstorm watch at 9 a.m. Thursday.
A severe thunderstorm watch has been issued for Halifax.
Environment Canada put out the alert just before 8 a.m. Thursday.
"Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts and heavy rain," the statement reads.
The national forecaster says strong wind gusts can cause damage, while heavy downpours can lead to flash flooding.
"A line of thunderstorms from Lunenburg County northeast to Prince Edward Island is giving heavy downpours locally above 25 mm/h. The line is moving slowly east," it says.
The watch is in effect for much of central and northern Nova Scotia.