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Josh Rubenstein's Weather Forecast (Feb. 28)

STUDIO CITY (CBSLA.com) — The storm has arrived, and it's living up to its promise. There's been heavy rain since about 2:30 a.m. Friday.

The first wave of heavy rain has passed; now it's just a steady stream of moisture moving into the area. That means pockets of heavy rain marked by light showers. There may even be some clearing from time to time, but don't be fooled, this storm is in place through early Sunday morning.

Rain totals are on track with up to three inches for the flat lands and close to six inches for the foothills.

The storm prediction center has even added in a slight risk for severe weather here in Southern California. This is a very rare event. These kind of outlooks are usually confined to severe-prone regions.

A Flash Flood Warning was issued around 10 a.m. for the Colby Burn area. A flash flood is a sudden rush of water, so be on the look out.

With the upper level support, there's a chance for thunderstorms, waterspouts and even possibly very weak tornadoes.  This threat will continue through Saturday, but the biggest threat will be through the day Friday.

Showers and instability will be in the forecast for Saturday, but it will be a bit more sporadic. The rain may even linger in some isolated spots on Sunday. Then there should be a dry up.

Snow levels will drop to 5,000 feet by Saturday, so expect one to three inches of snow.

Basin - low 60s

Coast - low 60s

Valleys - low 60s

Mountains - upper 40s

Deserts - low 60s

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