SAN DIEGO – An area of low pressure is setting up just off the coast of Southern California and will bring another round of unseasonable rain and potential flooding to the region, as well as parts of Arizona and the lower Colorado River Basin.

This comes just a few days after the remnants of Tropical Storm Mario brought a surge of moisture into Southern California and parts of the Southwest , resulting in deadly flash flooding . Southern California, in particular, doesn't typically see much rain during September.

While more rain is expected across the region beginning Monday, the highest potential for flash flooding in parts of Southern California will occur Tuesday and Wednesday.

SAN FRANCISCO BAY AREA ROCKED BY MAGNITUDE 4.3 EARTHQUAKE MONDAY MORNING

According to the FOX Forecast Cen

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