近日，山东威海、烟台等地出现‘雪下到冒烟’的奇特景象，引发网友热议。其实，这种现象并非真正的‘冒烟’，而是一种被称为‘海效应降雪’（或称‘大湖效应降雪’）的自然气象现象。当强冷空气南下，经过相对温暖的海面时，海水蒸发形成大量水汽，这些水汽迅速上升并与冷空气接触，凝结成雪花。由于温差极大，水汽在贴近海面或地面时会形成类似白雾或‘冒烟’的效果，看起来仿佛雪在‘冒烟’。这种现象多出现在冬季沿海地区，尤其是渤海、黄海沿岸。威海和烟台地处山东半岛北侧，正对渤海和黄海，是典型的‘雪窝子’——即冬季降雪频繁且强度大的区域。每当强冷空气来袭，加上暖湿海面提供充足水汽，就容易触发剧烈降雪，并伴随‘冒烟雪’奇观。气象专家提醒，虽然这一景象壮观美丽，但往往伴随着低温、大风和积雪，公众需注意防寒保暖和出行安全。
Recently, unusual scenes of ‘smoking snow’ have appeared in Weihai and Yantai in Shandong Province, sparking online discussions. In reality, this isn’t actual smoke—it’s a natural meteorological phenomenon known as ‘sea-effect snow’ (similar to ‘lake-effect snow’).When intensely cold air masses move southward over relatively warmer sea surfaces, the seawater evaporates rapidly, producing abundant moisture. This moisture rises quickly and condenses into snowflakes upon contact with the frigid air. Due to the extreme temperature contrast, the vapor near the sea or ground level appears as a dense white mist—resembling ‘smoke’ rising from the falling snow.Weihai and Yantai, located on the northern side of the Shandong Peninsula facing the Bohai and Yellow Seas, are well-known as ‘snow pockets’—areas prone to frequent and heavy snowfall in winter. Whenever strong cold fronts arrive and meet the warm, moist marine air, intense snowstorms accompanied by this ‘smoking snow’ effect can occur.Meteorologists caution that while the phenomenon is visually stunning, it often comes with severe cold, strong winds, and heavy snow accumulation, urging the public to take precautions for warmth and travel safety.
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