Ski areas out west are staying open later this season due to an unusually cold April and lots of snow. Mammoth Mountain, for example, has seen a record 76 inches more this month and more is expected next week. Snowfall measured in feet could fall in the higher elevations of central and northern California, Oregon and Washington. Mt. Baker and Mt. Baldy could easily see 1-3 feet of snow over the next week with a big storm coming in the next few days and another one the middle of next week. These heavy snows could fallas far south as central California and in the Tahoe area next week. Freezing levels in Oregon, Washington and British Columbia will be above 3,000-4,000 feet the next few days and above about 7,000-8000 feet at Mammoth. By the middle of next week, freezing levels will fall in the Tahoe and Mammoth region to under 7,000 feet.
In western Canada I expect rains at the lower elevations of Fernie and Whistler the next few days with possibly a foot of snow in southern British Columbia above 6,000 feet. By next week, freezing levels should fall below 4,500 feet, so that places such as Whistler, Red Mountain and Panorama see some heavy snows, especially in southern British Columbia.
The map valid for April 30th shows a huge upper level storm over the Pacific Northwest and California which should result in above normal snowfall over the next week, especially at the mid and higher slopes. The center of the circle (white--cold) is where the heaviest snowfall will be next week.
After a dismal last few days of rain and fog in much of New England, surprise snows of up to 6-12" may affect areas from Jay Peak to Mt. Tremblant and into northern New Hampshire and Maine through Thursday. If you want to ski at Tuckerman's Ravine, wait till later this weekend or next week when temps will warm up into the 40's again. We expect some heavy snow there the next couple days with chilly weather through Saturday but some awesome skiing there next week. Make sure you check with the avalanche center for the latest conditions before venturing out.