Snow Squall Warning Definition 2024 In. Snow squall warning definition (koln) in a snow squall warning, you can expect to see a quick, intense burst of moderate to heavy snow with strong, gusty winds. A snow squall warning is a special alert issued by the national weather service to warn the public — particularly drivers — that a snow squall is approaching or likely to.

A snow squall is a brief period of intense snowfall and wind that leads to whiteout conditions, zero visibility, a possible flash freeze and dangerous traffic accidents. When a snow squall warning is issued, it is focused on distinct areas.