[doorgunner69]

Must be the residue of the hurricane that hit Cabo?

[thackney]

I think this is separate. Rainfall maps from Hurricane Odile stop farther south. Remnants may have combined with some other system to form new.

Hurricane Odile Rainfall Totals
http://pmm.nasa.gov/mission-updates/trmm-news/hurricane-odile-rainfall-totals