A rapidly deepening storm just unleashed hurricane-force winds and rare thundersnow
Massive bomb cyclones can undergo explosive intensification to produce hurricane-force winds and thundersnow, a rare phenomenon where lightning flashes during a heavy snowstorm.
A bomb cyclone occurs when atmospheric pressure drops by at least 24 millibars within 24 hours, creating a powerful vacuum that pulls in violent winds. These intense systems can generate hurricane-force gusts exceeding 74 miles per hour and trigger rare thundersnow.
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