Snow squall warnings were activated by the National Weather Service Sunday and more are possible as quick band of snow showers was expected to hit New Jersey, triggering emergency alerts on many mobile phones While snow squalls are a fairly common occurrence during winter months, snow squall warnings are relatively new in the past few years. View latest snow squall warningsIn case you’re not up to speed on all this weather jargon and what it takes to trigger a mobile phone alert, here are some commonly asked questions about snow squalls and snow squall warnings. What is a snow squall? Snow squ…