The National Weather Service issued a flood advisory for Clark County at 5:45 p.m. and is in effect until 8:30 tonight.
Heavy rain moving through the area is expected to cause ponding on streets and highways as well as cause elevated levels of small creeks and streams.
The weather service cautioned motorists to be safe behind the wheel and not to drive where water covers the roadway.
Blustery winds during Saturday's portion of the storm system caused downed branches and scattered power outages throughout Clark County.
One outage late this morning left nearly 1,000 Vancouver customers of Clark Public Utilities without power, according to the utility's online outage map. Power had been restored in that area as of 2 p.m.
Another outage, reported at 2:17 p.m., left more than 1,500 customers without power in Vancouver. It was restored by 3 p.m.
As of 6:20 p.m. about 2,444 customers across the county were without power.
This before the arrival of stronger winds expected through this evening.
The advisory predicts that south winds of 15-25 mph, with gusts of 35 mph this morning will intensity to sustained winds of 20-30 mph and gusts from 40-50 mph.
The heaviest winds are expected between 3 p.m. and 8 p.m., the weather service said.
The advisory warned that broken tree branches will likely result in scattered power outages, and it warned local residents to not approach downed power lines. It also warned that high profile vehicles should take care, especially on bridges and roads that crossing the wind direction.
So far, one downed tree was reported just north of the Five Corners area, near the intersection of Northeast 94th Avenue and Northeast 102nd Street about 7 a.m., though has since been cleared.