Light rain fell on parts of the Southland today as the first of two storm systems moved into the region, but forecasters said the one-two punch could result in less precipitation in the Los Angeles area than originally expected.

The updated forecast, though, could impact the annual Belmont Shore Christmas Parade along Second Street on Saturday.

In Long Beach, the NWS forecasts an 80% chance of rain Thursday night, a 40% chance of rain during the day on Friday and a 20% chance Friday night. On Saturday, the chance of rain during the day remains at 20% but then is set to grow to 50% that night, when the parade is scheduled.

Previous forecasts showed the rain clearing up in time for the parade.

Parade organizers have said the event, which draws an estimated 50,000 spectators and more than 200 parade entries, will go on as planned, rain or shine.

According to the National Weather Service, the first storm system began moving across the state’s Central Coast early Thursday, making its way south. Rain was reported Thursday morning in some valley areas, along with some pockets of precipitation reaching into the West Los Angeles area.

But forecasters said the main front of the storm system appeared to stall over Ventura County, and possibly shift back to the north, “so it appears southern areas will get minimal precipitation from this first system.”

“It seems likely that most of L.A. County will still get some rain, perhaps only a quarter- to half-inch or so,” according to the NWS.

A second storm system—the one that could impact the Belmont Shore parade—is expected to arrive in the region late Friday and into Saturday, but forecasters said the path of that system still appears to be in flux, and it could potentially also linger primarily to the north on Saturday and possibly push into L.A. County on Sunday.