Light rain fell today, was likely tonight, and forecast to intensify somewhat Monday, National Weather Service forecasters said. Snow was falling above the 5,500 foot elevation today, but could drop to 3,500 feet above sea level tonight.
But snow accumulations were expected to be so light that the NWS did not expect more than a dusting of snow along the Grapevine or other major freeway passes.
Angeles Forest Highway's summit between Palmdale and Mt. Wilson tops out at almost 5,000 feet, but it was cleared of snow from Friday and reopened to short-cut traffic between Palmdale and La Crescenta today.
Only small amounts of rain have fallen in the past week in Los Angeles County, as a series of small storms passed over the area. Seven-day totals included 1.76 inches at a station east of Mt. Wilson, .67 inches in the mountains above Malibu, .43 inches near Newhall Pass, and .16 inches at USC.
Much of that rain fell today. The rainfall intensity was too low to trigger any warnings of debris or mudflows in burned areas of local mountains.
Dense fog was likely in mountains tonight, turning to rain and coastal fog in lower areas.
A system poised to arrive Tuesday will be colder and wetter than the past four storms, with most of the area likely to get between .10 and .25 inch of rain.
And another weak weather system is likely to arrive Friday, the NWS said.