National Weather Service United States Department of Commerce

Lake-Effect Snow Continues Downwind of the Great Lakes; Below Normal Temperatures Across the Eastern Half of the U.S

Arctic air will continue below normal temperatures across the eastern half of the U.S. through Tuesday with heavy lake-effect snow continuing downwind of the Great Lakes. High pressure over the western half of the U.S. will support mainly dry weather for much of the region with above normal temperatures this week. Read More >

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Volcanic Ash SIGMETs with PIREPs and Surface Weather

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Volcanic Ash and Ashfall Safety
Anchorage Volcanic Ash Advisory Center
Washington Volcanic Ash Advisory Center
Montreal Volcanic Ash Advisory Center
Aviation Weather Center SIGMETs
Alaska Aviation Weather Center
CO State Volcanic Ash Satellite Loop