Whale's mouth: this effect is
the weird-looking sky sometimes appearing when the first gust front of a
storm is passing over. The cold downdraft of air of the storm rushes
outward and forward along the surface, and lifts the warmer air in the
direct vicinity of the storm over its condensation level. One gets to see
the back side of this mini cold front, and the inside of the gust front
cloud. It looks somewhat like mammatus and other forms of turbulent cloud
masses, sometimes showing very neat ordering. In my area this effect usually
occurs a couple of times a year.
Date read as:
year-month-day-hour and minutes in CET (Central European Time). © SkyStef.
Check also the weather movies
for some motion pictures |