CENTRAL COAST WINERIES ARE HARVESTING EARLY DUE TO THE DROUGHT.     GROWERS REPORTED YESTERDAY (TUES) THEY HAVE HAD TO HARVEST THEIR GRAPES AT LEAST TWO WEEKS AHEAD OF SCHEDULE.    DUE TO THE LACK OF RAIN, WINERIES HAVE HAD TO RELY ON DRIP IRRIGATION TO SUSTAIN THEIR CROPS.    THE DROUGHT HAS NOT HAD ANY MAJOR IMPACT ON THE QUALITY OF HARVEST SO FAR.