TRUCKEE (CBS SF) – What a difference a year makes.

At this time last year, several Sierra ski resorts were contemplating closing early because their simply was not enough snow to support a spring ski season.

READ MORE: San Jose Becomes First City In Nation To Require Gun Liability Insurance

On Monday, the resorts were digging out from a weekend series of storms that dumped as much as 2 feet of new snow on the upper runs with more predicted for the upcoming week.

At Kirkwood, 17-20 inches of snow had fallen on its upper runs in a 48-hour period that ended early Monday morning.  The resort reported it had nearly 9 feet of snow as its base.

Meanwhile at Heavenly near South Lake Tahoe as much 14 inches of snow fell over the weekend and Northstar got 20 inches as did Sugar Bowl.

Chains were being required on the mountain passes on Highways 80 and 50 on Monday and drivers were being warned of possible white out conditions.

READ MORE: Curry And Warriors Rout Mavericks, 130-92

The National Weather Service has issued a winter storm warning for the Lake Tahoe area until 4 p.m. on Monday.

The weather service warned that as much as 5-12 inches of new snow could fall over 7,000 feet with wind gusts of up to 45 mph in the lower passes and up to 100 mph on the ridges.

Waves as high as 4 feet were being forecasted for Lake Tahoe.

Another series of storms was expected to move into the area late on Friday and stay through the upcoming weekend.

MORE NEWS: Oakland Chinatown Cash-Only Businesses Convert To Credit To Stop Attacks On Asians