An unseasonably late frost is forecast to hit the Asheville area tonight, threatening the region's budding vineyards and early spring blooms. The National Weather Service (NWS) in Greenville-Spartanburg has issued a frost advisory effective from 2 a.m. to 9 a.m. Tuesday, warning that temperatures could dip as low as 33 degrees in some areas. This cold snap could have significant consequences for local agriculture and horticulture. The NWS advisory notes that sensitive vegetation is the primary c