The National Weather Service has issued blizzard warnings for Washington D.C. and Baltimore, marking the first blizzard warnings issued in advance of Winter Storm Jonas, a system now developing over the Plains states and expected to turn into a powerhouse winter storm by the time it reaches the East Coast Friday and Saturday. The blizzard warning goes into effect at 3 p.m. Friday in the nation's capital and 6 p.m. Friday in Baltimore. The warnings also include the surrounding suburbs...