MOUNT WASHINGTON, N.H. (CBS) – The summit of Mt. Washington can produce spectacular scenes of snow and ice atop the 6,288-foot peak. But it was a stunning cloud formation that caught the eye of the Mount Washington Observatory on Monday.

A photo of a wave-like cloud shared on the Observatory’s Facebook page had more than 1,500 shares in just a few hours.

READ MORE: Massachusetts Reports 41 New COVID Cases, 5 Additional Deaths

“Mother nature waved back this morning!” the Observatory wrote. “A lenticular cloud around 7 AM displayed some awesome KH (Kelvin-Helmholtz) waves!”

READ MORE: 'Devastating': 1-Year-Old Angelo Nicoloro Drowned During Wrentham Father's Day Celebration

The Observatory explained that these wave formations happen when there’s a big difference in wind speed over a small vertical distance.

MORE NEWS: Rep. Jim McGovern: Republicans Who Voted Against Gold Medals For Police Protecting Capitol During Riots Are 'Cowards'

Facebook commenters compared the cloud to “a surfer’s heaven,” “a celestial cowlick” and a “dollop of meringue.”