while cloud tops over southern Pennsylvania reached -9. "So, although it's brutally cold on the surface, it's even colder in the clouds. Further, the data on those cloud temperatures does not ...

A rare phenomenon could occur Wednesday afternoon as upper level spin interacts with relatively warm surface conditions.

This is especially true for cold clouds (cloud top temperatures colder than minus-12 C). This is because the air is super saturated with respect to ice, not liquid water. So, the dew point ...

EUGENE, Ore. — A rare sight yesterday afternoon as residents around Eugene spotted a Funnel Cloud descending over the city.

NASA's Aqua satellite saw the area of strong thunderstorms with colder cloud tops had grown within the Eastern Pacific Ocean's Tropical Storm Rachel. NASA's Aqua satellite passed over the large ...

THESE ARE ACTUAL TEMPERATURES. THIS IS LIKE NORTHERN PLAINS COLD THAT WE’RE TALKING ABOUT. AND THEN YOU GOT INTO THE CLOUD COVER AND IT STAYED A LITTLE BIT WARMER AND BOSTON ONCE AGAIN DID NOT ...

Scientists suspected the weather patterns rippling across the cloud-tops to be influenced by the topography of the terrain below. They have found hints of this in the past, but did not have a ...