Morning analysis suggests that jet stream level winds in the North Pacific have exceeded 250mph indicative of the strength of this jet extension. Increasingly inclement weather is expected across the Western US this weekend and early next week as a parade of lows comes onshore. Heavy mountain snowfall and widespread rain showers are expected across the West. A cold airmass diving out Canada will prompt a mid-November frost and freeze chance for the deep south this weekend with some Gulf Coast states expected to see freezing overnight temps.