pyrocumulonimbus,

弧状积雨云(cumulonimbus arcus) 秃积雨云(cumulonimbus calvus) 鬃
phantaci范特西 cumulonimbus sweatshirt 运动衫卫衣
积雨云 雷云 夏季
stock photo: thunderhead, cumulonimbus, thundercloud
dangerous wildfire-generated pyrocumulonimbus cloud