東部Washington州に‘Fire Cloud’ (火災雲 : pyrocumulus とも呼ばれる[cumulus 積雲][pyro 火])通常、火災や、火山活動に伴い生ずる濃密な積雲)、稀に出現する雲が現れ、撮影されました。しかも、撮影した機器は、NASAのFlying Laboratory Jet。
You’ve seen billowy cumulus clouds and wispy cirrus clouds, but odds are you’re not too familiar with fire clouds. Even scientists know less than what they'd like to about so-called pyrocumulonimbus (pyroCb) clouds, which form when wildfires and agricultural fires unleash enough heat and moisture into the atmosphere to produce storms.
That changed on Aug. 8, when NASA’s airliner-turned-flying laboratory took to the skies over Washington state and flew a team of scientists straight into a pyrocumulonimbus cloud that had formed high over a wildfire in the eastern part of the state.
Image: Satellite view of a fire cloud
An August 7, 2019 satellite view of a fire cloud, or pyrocumulonimbus (pyroCb), over Washington state. Such clouds are caused when fires loft enough heat and moisture into the atmosphere to produce thunderstorms.NASA