DEEP CREEK LAKE -- A number of northern pike of seven to eight pounds have been taken on long- lipped crankbaits. Don't overlook the large crappies up this way; 11/2-pounders are common. WSSC LAKES -- Cloudy water in many parts of Triadelphia and Rocky Gorge lakes, but good just the same for hefty bass, which prefer grape or black plastic worms. Doughballs will draw large carp. POTOMAC RIVER -- Weekend rains will spell the difference for the western Maryland or Montgomery County sectors. If it pours again, forget fishing from a boat. But do dunk a cut bait or nightcrawler from shore; fat cats will love it. In Washington, the channel by the Flagship and Hogate's ought to hold a few keeper bass. Rockfish are scattered along the War College seawall. CHESTER RIVER -- At the mouth, from Love Point into the river, there's a decent chance for early- morning breaking bluefish. White perch should hit bloodworms around shore dropoffs. POCOMOKE RIVER -- Night fishing and loud surface lures go well together near Shad Landing State Park. Largemouth bass have been wild about black Jitterbugs after the sun sets. Plastic worms work during the day. Live minnows will find the crappies in shore brush. NANTICOKE RIVER -- Outgoing tides, long-lipped chartreuse/red Firetiger lures and the areas between Sharptown (Route 313) and the Delaware line are a natural bass combination now. CHOPTANK RIVER -- A few scattered bass and crappies are available between Greensboro and Martinak State Park. Don't be offput by muddy water. Fish anyway! SOUTHERN MARYLAND PONDS -- St. Mary's Lake (Camp Cosoma Road, off Route 5 below Leonardtown) is a flyrodder's heaven. Large bluegills and so-so bass are the rule. The same holds for Gilbert Run Lake (Route 6, east of LaPlata) where occasional whopping shellcracker sunfish will test your leader. Try a slowly-sinking Black Gnat bug on two-or four-pound tippets. EASTERN SHORE PONDS -- Muddy or not, no matter. Cast a flyrod popping bug or a little piece of garden worm under a bobber and see if slabsided bluegills won't inhale the offerings at Wye Mills (Route 213, Queen Anne's County), Leonard's and Johnson's ponds (Route 13, Salisbury), Urieville (Route 213, Kent County). CHESAPEAKE BAY Ask the guys from the Prince George's Fish & Game Club, who went chumming aboard a charter boat last weekend on the lower Chesapeake and couldn't catch a cold. Tell them how great the fishing is and see if they won't try to choke you. But that's been the story for many. A few hardy trollers and chummers insist the sea trout and bluefish are "everywhere." Others grudgingly fly the skunk pennant. This weekend, however, should produce fish if heavy rains stay away. The western side of the Chesapeake, from Point Lookout up to and past the power plant, still is thought to be the best trolling area for trout and blues. Point No Point, just north of Point Lookout, has given up a number of black drum. The same will happen at Sharps Island on the eastern side of the Bay. Peeler-crab baits fished on the bottom around Hooper's Island Light have produced sea trout. Bluefish are roaming the northern parts of the Bay and a handful of lunker rockfish are around the Brickhouse Bar and Dumping Grounds. Good luck: You'll probably need it.