Light to moderate rain began falling Saturday night in the Colby fire burn area in Glendora, where residents are on alert for possible mudslides.

GLENDORA, Calif. (KABC) -- Light to moderate rain began falling Saturday night in the Colby fire burn area in Glendora, where the alert level has been raised to yellow due to the storm.The rain began falling around 6 p.m. The showers were light to start, but heavier downpours were expected early Sunday.The yellow alert means no evacuations are in effect, but rain-related parking restrictions are in place. Also, residents have been directed to remove vehicles, trash bins and other obstructions from streets.For the last few days, crews in Glendora placed K-rails all over the foothill area of the city. Homeowners also placed sandbags in front of their homes to divert any mud flow.Back in December, a storm triggered mud flows that damaged several properties . Residents said they are very happy to see new barricades on the streets."The first big storm, we were covered with mud all the way down here in the whole sidewalk," said area resident Dennis Hart. "Ever since then, we got the sandbags, we put them out. Yesterday, they put all the pylons up here in Glendora Avenue. They just did it, it's all new, because I guess they're worried even more this time,"The rain will likely increase along with a chance of thunderstorms into Sunday morning. The foothill communities may get up to 2 inches of rainfall and the valleys may get 1.5 inches.The storm will also bring snow to our local mountains , dropping the snow level to 5,000 feet and even down to 4,000 feet Sunday. Around 5-10 inches of snow are expected at the 5,000-6,000 foot level and around 6-10 inches for areas above 6,000 feet.Another round of rain is expected to hit the Southland Monday and Tuesday.