Dell Moreen

Snow Squall Warning Criteria 2024. 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. Snow squalls, though brief, can be extremely dangerous due to their sudden onset and severe impact on visibility and road conditions.

The following criteria are needed for nws to issue a snow squall warning, heeren said: A snow squall is an intense, but limited duration, period of moderate to heavy snowfall, accompanied by strong,.