Area ski resorts can look back at 1982 as one of their better years weatherwise, but this weekend won't be a paragon of winter delight. The National Weather Service is predicting temperatures in the mid- to upper-50s, dropping at night to high 30s and low 40s. The rain forecast is another damper for slope enthusiasts. But who believes in forecasts, anyway? Your best bet is to call ahead. ALPINE LAKE -- Terra Alta, West Virginia, 190 miles. Snowmaking machines working for season opening on Sunday. Special skiing schedule through January 3. Call 304/789-2481. BIG BOULDER -- Lake Harmony, Pennyslvania. 225 miles. Base 12 to 24 inches, 3 inches of packed natural snow. Eight of 10 slopes now open with two or three lifts in operation. Call 717/722-0101. BLUE KNOB -- Claysburg, Pennsylvania. 150 miles. Base 12 to 14 inches with powder surface. Skiing down two-mile Mamnbo Alley slope and Bunnyhop until 10 at night, till 5 on Christmas Eve. Call 814/239-5111. BRYCE MOUNTAIN -- Bayse, Virginia. 120 miles. Packed powder base of 10 to 25 inches. Three of five slopes now open. Snowmaker will work as long as cold holds out. Two chairs and surface lift being used. Open Friday until 3 and Christmas Day, 9 to 4:30. Night skiing starts Monday, 6 to 10. Call 703/856-2121. CAMELBACK -- Tannersville, Pennsylvania. 230 miles. Two inches of new powder topping 12 to 30 inch base. Snowmaking machine working when mother nature isn't. Ten trails and three lifts open. Friday hours, 8:30 to 5; Christmas day, 12:30 to 5. Night skiing begins seven-day schedule Sunday, 5 to 10. Call 717/629-1661. CANAAN VALLEY -- Davis, West Virginia. 180 miles. A 20- to 32-inch man-made base of primary powder with a secondary layer of powdered snow has opened three of 20 slopes and a lift. Open Christmas Eve from 9 to 4 and Saturday from noon to 4. Night skiing on hold. Call 304/866-4121. ELK MOUNTAIN -- Uniondale, Pennsylvania. 260 miles. Man-made and natural snow combine for a one- to two-foot base. Making snow for the 7,000- foot Delaware intermediate slope. Skiing on five slopes and trails; open Friday-Saturday, 8:30-4:30. Night skiing begins Monday, 4:30-10. Call 717/679- 2611 or 800/233-4131. HIDDEN VALLEY -- Somerset, Pennsylvania. 191 miles. Base 8 to 36 inches with up to 8 inches in packed powder. Five slopes, three chairs and rope- tow open. Snowmaking with grooming while 10- kilometer cross-country trail in good condition. Call 814/445-6014 or 800/458-0174. THE HOMESTEAD -- Hot Springs, Virginia. 200 miles. One-foot base of powdered snow with two inches of machine made. Three of five slopes being skied. Opened Friday and Saturday. No night skiing. Call 703/839-5079. JACK FROST MOUNTAIN -- White Haven, Pennsylvania. 250 miles. Base one to two feet with 7-inch natural powder topping. Skiing seven slopes and five lifts open for weekend. Call 717/443-8425. LAUREL MOUNTAIN -- Boswell, Pennsylvania. 190 miles. Base runs 8 inches to 24 with 8 inches of machine snow. Primary is of groomed powder and machine combination. A novice and advanced slopes, rope-tow and chair lift in use. Christmas Eve and day schedule waiting on weather forecast. Night skiing soon. Call 412/238-6688 or 24-hour recording, 412/238-4460. SEVEN SPRINGS -- Champion, Pennsylvania. 190 miles. Base of packed powdered snow ranges from 4 to 24 inches in man-made ski areas to 4 to 8 inches of natural snow. Four to seven slopes and lifts expected open this weekend. Hours 9 a.m. to 11 p.m. daily. Call 814/352-7777. SNOWSHOE -- Slatyfork, West Virginia. 245 miles. Man-made and natural combination base of 18 to 35 inches of snow with 1$ trails, five lifts open Call 304/799-6600 or report 304/799-6630. TIMBERLINE -- Davis, West Virginia. 180 miles Man-made base of 12 to 30 inches covered with 8 inches of natural packed powder. Two trails and one lift open daily except Christmas day. Making snow when possible. call 302-866-4433. WINTERGREEN -- Wintergreen, Virginia. 168 miles. Base of 18 to 36 man-made inches with three slopes in use, including Potato Patch and Eagle Sloop for advanced skiers. Day begins at 9 and night skiing until 11 every day. Call 804/325-4400. WISP -- Oakland, Maryland. 185 miles. Base 10 to 30 inches of man made and natural snow. All 16 slopes open with grain-sized granular surface. Open Friday until 4:30, Christmas Day 12:30 to 4:30 and Sunday 9 to 4:30 throughout holiday week. Call 301/387-5503.