Definition of thundersnow in US English:

thundersnow

noun

  • Snowfall accompanied by thunder and lightning.

    ‘thundersnow happens in Iowa about once every winter’
    • ‘Thundersnow typically accompanies heavier amounts of snowfall, Kotenberg said.’
    • ‘Thursday morning, I was awakened by thundersnow and a landscape already reshaped in shades of white and gray.’
    • ‘For thundersnow to occur there needs to be a very precise set of circumstances -- the air layer closer to the ground has to be warmer than the layers above, but still cold enough to create snow.’
    • ‘The storm brought snow as far south as northern Florida, thundersnow from Texas to Pennsylvania and snowdrifts of more than 10 meters in the north.’
    • ‘Even when this winter finally ends, thundersnow and its friends will plot their return.’
    • ‘In fact, I would not be surprised to hear reports of thundersnow.’
    • ‘The forecast had suggested thundersnow, but the windows looked out on nothing but ordinary drenched lightlessness.’
    • ‘This morning we had widespread thundersnow from Levenworth, Kansas to Warrensburg, Missouri.’
    • ‘Very cold air moving over the comparatively warm North Sea generated the thundersnow.’
    • ‘He cautions that lightning strikes during thundersnow are just as dangerous as any in a thunderstorm, but since fewer people are outside you rarely hear reports of people being struck.’

Pronunciation

thundersnow

/ˈTHəndərˌsnō/