LAKE TAHOE and#8212; Squaw Valley and Alpine Meadows announced on Monday they will extend daily operations through the month of April, with Alpine scheduled to remain open Friday through Sunday through May 13.

Squaw and Alpineand#8217;s 2012-13 season passes will offer free skiing and riding at both resorts starting April 1 through the close of the season. Passes are slated to go on sale on March 27.

Heavenly and Kirkwood also announced Monday that they plan to extend their seasons. Heavenlyand#8217;s closing day was scheduled for April 15, but the resort will now stay open Friday through Sunday the weekends of April 20-22 and April 27-29, weather and conditions permitting.

Kirkwood will keep the same weekend-only schedule as long as snow conditions will support skiing and snowboarding, according to the resort.

Elsewhere, Diamond Peak Ski Resort in Incline Village will stay open through Easter Sunday, and possibly the weekend after, conditions permitting, a resort official said Tuesday.