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Earlier today, a friend asked me what this symbol (referring to an airport in Canada) on a weather depiction chart represented. I didn't know. (Full chart available here)

Dot inside parenthesis on a weather depiction chart

What does a dot inside parenthesis mean on a weather depiction chart?

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What agency produced the chart? –  user2168 May 14 at 5:33
    
@Articuno - The Aviation Weather Center. I've edited in a link to the full chart. –  Steve V. May 14 at 6:30
    
Looks like its a NOAA chart. –  user2168 May 14 at 7:04

1 Answer 1

up vote 7 down vote accepted

From here, $(\cdot)$ means that there is precipitation within sight, reaching the ground, not at the station, but < 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.

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