(Undated) -- A Winter Storm Watch remains in effect from the National Weather Service for all of Rhode Island except for Block Island from Saturday afternoon until Sunday evening. Heavy snow, sleet and freezing rain are expected. For Bristol, Washington and Newport counties, forecasters are predicting two to six inches of snow and sleet, while in Providence and Kent counties, the call is for a possible six inches or more of snow. The weather service says precipitation may change to all rain along and southeast of the Boston-to-Providence corridor at one point, which could lead to a flash-freeze.