Morgan Norwood has the latest on the bone-chilling cold in the Northeast is fueling a lake effect snow machine in Western New York that shows no signs of letting up, and the high tides in California that have inundated the Bay area with flooding – submerging cars in murky water; Tom Soufi-Burridge has details on the new video capturing the harrowing moment flames start engulfing the ceiling inside a bar in the Swiss Alps as investigators say that sparklers may have led to deadly inferno; amid widespread anti-government demonstrations in Iranian cities, Maggie Rulli reports on Pres. Trump’s warning to Iran, saying that the U.S. is "locked and loaded,” and vowed to step in if Iran kills peaceful protestors; and more on tonight’s broadcast of World News Tonight with David Muir.

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