The National Weather Service issued a flood advisory for Glendora and other surrounding communities Saturday morning.
The flood advisory was issued at 10 a.m. and will remain until 12 p.m. today.
Doppler radar showed the possibility of heavy rain due to thunderstorm activity, which could produce urban and small stream flooding.
Half an inch to an inch of rain has already fallen over the area. Runoff from earlier rains is continuing to flow and minor flooding is still possible, the NWS reported.
