California needs all the rain it can get now, because it certainly isn'tgoing to come in May. On average, May is one of the driest months on the WestCoast. The normal May rainfall in San Francisco is less than a half inch, andin Los Angeles it is barely quarter inch.The storm of concern is centered due west of Los Angeles, and its track isslightly north of east. That will bring the most substantial rainfall intoCalifornia with very little expected to the north in Oregon. The main impactfrom the storm will come from later Tuesday into Wednesday morning. This is notthe type of system that produces serious flooding and mudslidesDid I mention thunder? There could be some of that too along with hailthrough the lower third of the state.

Story by AccuWeather.com Expert Senior Meteorologist John Kocet.