Snowfall totals from the Jan. 19 storm varied widely across San Juan County. Before this storm, the Four Corners Regional Airport had seen only a half inch of accumulated snow this season. FARMINGTON — San Juan County and much of the rest of the northern half of New Mexico saw its first significant precipitation in more than a month on Jan. 19, as a snowstorm that began in the early-morning hours lingered into the late afternoon before dissipating. But the good news for the drought-stricken area is that more moisture could be on the way. Sharon Sullivan, a meteorologist with the National Weather Service in Albuquerque, said the Jan. 19 storm that left San Juan County under a winter weather advisory for much of that day was expected to head east before backtracking later in the week. That could mean additional precipitation for Thursday, Friday and Saturday, according to the NWS forecast.