January 24, 2021: A snowy day in the Dublin Mountains.RollingNews.ie

If you’ve been on Irish Twitter in the last day or so, you may have seen the word “graupel” pop up, triggering intrigue amongst all who come in contact with it.

The discussion surrounding the mysterious "graupel" term comes as Ireland is under a Status Yellow weather advisory due to temperatures in the low single figures by day and severe frosts at night, as well as showers of sleet or snow at times in eastern counties.

As the wintry weather descended upon the country on Monday, Carlow Weather, headed up by Alan O'Reilly, reported that "graupel" was falling in some parts of the country:

Turns out, the term "graupel" was new to some Irish people, with one person replying to the Carlow Weather tweet saying "You learn something every day!" and another who said, "Well, that’s a new one on me (and it’s been ‘on’ me on several occasions over the last two days!)"

Speaking with RTE’s Morning Ireland on February 9, Alan O’Reilly of Carlow Weather further explained: “It’s called graupel. It’s kind of like soft hail.

“I suppose the main difference that people might have noticed is that hail is hard as when graupel is soft when you touch it.

“It’s when water droplets collect around and freeze around a small snowflake that falls from the sky. Sometimes people refer to it as snow pellets, or even I call it snow drizzle sometimes.

“You have to have very cold air, which we have, but you don’t have enough precipitation to be snow.”

The fascination with the seemingly previously unknown weather occurrence continued well into the day on Tuesday: