'Crazy Cloud Day': Newly Recognized Cloud Type Seen Above Boston
BOSTON (CBS) – Before a mini nor'easter descended on New England for the next few days, people around Boston noticed some pretty cool happenings in the sky Tuesday morning.
@ericfisher skies above east Boston just now pic.twitter.com/FtNFPdhcnD
— Casey Leish (@chaotickat) April 25, 2017
Several people took to Twitter to share photos of the "crazy cloud day" in the city.
Crazy cloud day in #Dorchester. pic.twitter.com/S73fIr0z1X
— Wil-Holbrook (@wholbrook) April 25, 2017
The wavy, marshmallow-like pillows hanging low over the skyline are Undulatus Asperatus or Asperitas clouds, according to WBZ-TV chief meteorologist Eric Fisher.
Fun with clouds over the harbor. Looks like a touch of undulatus asperatus. pic.twitter.com/TDfWYeX1lM
— Eric Fisher (@ericfisher) April 25, 2017
Asperitas clouds are an unusual sight – they were just officially recognized by the World Meteorological Organization last month.
the clouds are super cool in boston today pic.twitter.com/nWwPf2tD7i
— avery (@avery_l_donovan) April 25, 2017
More of those sweet asperitas clouds today over Charles River CC. Thanks @mcasey101 for the photo! #wbz pic.twitter.com/vvK8r52o41
— Eric Fisher (@ericfisher) April 25, 2017
"Asperitas is characterized by localized waves in the cloud base, either smooth or dappled with smaller features, sometimes descending into sharp points, as if viewing a roughened sea surface from below," the organization says.
Here's a view over the Prudential from Liz B. #UndulatusAsperatus pic.twitter.com/ygRW1poe28
— Eric Fisher (@ericfisher) April 25, 2017
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