What does a dot inside two parenthesis mean on a weather depiction chart?
From here, $(\cdot)$ means that there is precipitation within sight, reaching the ground, not at the station, but &lt; 5 km from the station.

$)\cdot($ means that there is precipitation within sight, reaching the ground, not at the station, but > 5km from the station.

This source and this source give similar definitions, but without a strict distance cutoff, instead just saying "distant" and "near".

I couldn't find any references to this symbol in Nav Canada's weather code and symbol legend.