The weather agency had issued a warnings for all three P.E.I. counties with a fast-moving system moving across the region.
Charlottetown saw a sudden torrential downpour, along with thunder and lightning, beginning around 6:30 p.m. Wednesday.
Other areas reported much of the same as the system moved from west to east across the province.
All was clear by around 9 p.m., according to Environment Canada.
Severe thunderstorm watches are issued when atmospheric conditions are favourable for the development of thunderstorms that could produce one or more of the following: large hail, damaging winds, torrential rainfall.