Today: NWS officials said despite cloud cover they described as "abundant," high reached the upper 80s and lower 90s across the lower Arizona desert. In Phoenix, a high of 93°F was recorded.

Temperatures in metro Phoenix chilled to 93° on Sunday after three days of record heat. Wind gusts throughout the state could cause some unexpected hazards on the roadways. A Red Flag Warning is ...

IN 1933 Bergeron1 postulated that rain falls only from clouds which contain both water drops and ice crystals. Natural cumulus clouds at temperatures above -13° C. often contain only supercooled ...

"Stubborn cumulus clouds and persistent winds make liftoff not possible within the available window," read a liveblog update from operator United Launch Alliance (ULA), a joint venture between ...

ULA's Atlas V launch attempt for Amazon's Project Kuiper satellites was scrubbed due to persistent cumulus clouds and strong winds. ULA is working with Space Force officials to schedule a second ...

Launch controllers worked through some technical glitches, but were primarily concerned thick cumulus clouds and rain within 10 miles of the pad, which violated launch weather rules, ULA officials ...

“The stubborn cumulus clouds and persistent winds make liftoff not possible within the available window,” ULA’s stream read. A new target time for the launch has not yet been release ...

The time was continually pushed because cumulus clouds were violating the eastern portion of the 10-mile ring around the launch site. Also, winds remain elevated above the safe liftoff limit.