Weather forecasters say they have a higher degree of confidence Friday that a major winter storm could develop in the days leading up to the Christmas holiday weekend, bringing a threat of snow and strong gusty winds to many states in the the eastern and central U.S. next Thursday or next Friday. However, they stress it will still be several more days before the forecast comes into better focus, because there are many moving parts to the potential storm. Many forecasters are confident that one of the key ingredients for snow — cold air — will be present, because a blast of Arctic air will be d…
