Hurricane Matthew will bring major impacts to the Southeast on Friday, while a Pacific system shifts over the Northwest.
Hurricane Matthew is forecast to brush across the coasts of Florida, Georgia and South Carolina. Throughout most of Friday, Matthew is expected to pack wind speeds between 131 to 155 mph (113 to 134 kts). This system will produce torrential rain, dangerous storm surge and powerful winds across a large part of the Southeast. Prolonged heavy rain will bring threats of flash flooding to east central Florida, northeast Florida, southeast Georgia, eastern South Carolina and southeast North Carolina. Hurricane warnings and tropical storm warnings are in effect more much of the Florida Peninsula, southeast Georgia and southeast South Carolina.
Meanwhile, a low pressure system will transition northeastward across the Great Lakes and southeast Canada. A cold frontal boundary associated with this system will extend south southwestward from the western Great Lakes to the southern Plains. As this frontal boundary pushes eastward, it will produce showers and thunderstorms in parts of the Midwest, the middle Mississippi Valley and the southern Plains.
Out west, a low pressure system will move east northeastward across northern Washington and British Columbia. This system will generate showers and high elevation snow from the Pacific Northwest to the northern high Plains. High pressure should keep most of the Great Basin and the Southwest clear of precipitation on Friday.
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