The National Weather Service has issued a Snow Squall Warning for the NYC Metro Area until 4:15pm. An emergency alert was pushed to cell phones throughout area earlier this afternoon.
A snow squall is a concentrated area of heavy snow which can produce reduced visibility and strong wind gusts. Snow can accumulate quickly on all surfaces and travel can become dangerous.
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One common thread running through all of our winter storm threats so far this season has been mixed precipitation types. An upcoming storm, expected to impact the area from Monday into Tuesday, is likely to be no different. Precipitation may begin as snow, but will then change to a mix of sleet and freezing rain before turning to plain rain on Tuesday.
The storm systems journey begins in the Central United States, with a low pressure center moving northward towards New England early next week. The system will be mostly driven by a process known as warm air advection, or the movement of warm air throughout the atmosphere.
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