San Diego County was predicted to get the most rainfall of the season so far from this week’s atmospheric river weather system, and the storm did not disappoint.

To prepare for the spate of inclement conditions, the city of San Diego has been monitoring some 46,000 storm drains and will preemptively close flood-prone Mission Valley roads if deemed necessary.

The region was getting drenched Thursday by an atmospheric river — a column of moisture out of the west that flowed into north coastal San Diego County just after 5 p.m. and was expected to spread