A glance at the weather across North America, and no surprise, spring has arrived some places, while in other locales, deep winter has clawed back in. Jackson, New Hampshire, warmed to 59 degrees Fahrenheit today. Ditto in Lake Placid. A bit lower at 46 degrees in Hayward, Wisconsin, and a chance of rain. This morning in Bozeman, Montana was just below freezing with 92% humidity. It fell to – 4.3 degrees Celsius in Sovereign Lake,...