By: Jacqueline Bennett newsandviewsjb (Update – snow showers expected this weekend) Polar vortex has become part of everyday vocabulary across the United States and its effects have put New England and other regions back in the deep freeze. Following a brief reprieve from previous frigid blasts, in recent days temperatures here in Connecticut have been hovering in the low double to single digits with predictions of sub-zero readings to come – and COLD temperatures will stay- into the foreseeable future. Three waves of Artic air are headed for New England, according to accuweather.com. “Into the first part of next week the polar vortex will hover just north of the United States border causing waves of frigid air to blast into the Midwest and much of the…