Off and On Showers Today
Plenty of moisture up through 700mb and a frontal system (and associated jet dynamics) to our north are allowing for some moderate warm-air advection over our area today. This should result in some off and on showers produced over our region. Light showers should be more persistent along the foothill of the Santa Ana, and especially, the San Bernardino Mountains as a result of the combination of warm-air advection and orographics. Down here on the coastal plain, we could pick up, at most, 0.10″ throughout the day today, with, as Scott suggested, a more vigorous frontal passage tomorrow.
NWS is calling for up to 0.50″ of rain here along the coast. Scott anticipates a little less, with about 0.25″. I’ll split the difference and say anywhere from 0.25″ – 0.50″; nevertheless, expect about 1/3″ when all is said and done.
Enjoy the rain!
Here’s the satellite image showing the vigorous storm to the north, and the warm air advection over the Southland:
-Mike
PS: Here is the corresponding radar image showing the showers in the area:
