Today, for the second time this week, we had a very unusual weather phenomenon occur in Seoul - thundersnow. According to wikipedia,
thundersnow occurs in regions where there is a strong upward motion within the cold sector of a tropical cyclone. For a thundersnowstorm to occur, a mass of cold air must be on top of warm air, plus moist air near the ground. A bit of lightning was mixed in along with some thunder, and the sky was a bit grey-green. In addition, some
graupel (ice pellet-like formations when super-cooled droplets of water freeze on snowflakes) fell for a short time.
Tomorrow is the last day of school before the Christmas break. Didn't stop some teachers (and likely students as well) from doing a "snow day dance."
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