A developing storm system forecast to swing off the Oregon and Washington coastline on Friday will add to the region's weather woes.

The effects of the so-called bomb cyclone storm on Southern California will be less dramatic compared with the north, weather forecasters say.

The week begins with a Freeze Warning across the Valley on Monday night and goes on until Tuesday morning. Areas below 2,000 feet in elevation can expect overnight lows to drop below 36 degrees by Tuesday morning.