A tornado-like cloud spotted over Pennsylvania has gone viral on social media after alarming residents who feared a dangerous twister was forming. However, meteorologists have confirmed the cloud was a harmless scud cloud, not a tornado.
Pennsylvania, United States – Web Desk: Videos widely shared online showed a long, twisting cloud extending downward from a storm cloud toward the ground, prompting many social media users to believe a tornado had developed.
Weather experts explained that while the cloud closely resembled a funnel cloud or tornado, it lacked the strong, organized rotation required to classify it as a tornado.
According to meteorologists, scud clouds typically form beneath thunderstorms when cool, moist air mixes with warm air. Although they can appear dramatic and resemble funnel clouds from a distance, they do not produce the violent rotating winds associated with tornadoes.
Experts noted that the key difference is rotation. A genuine tornado is a rapidly rotating column of air extending from a thunderstorm to the ground, whereas a scud cloud simply drifts with the wind and may move vertically without sustained rotation.
Meteorologists added that such cloud formations are not unusual during periods of severe thunderstorms and high humidity, particularly across the eastern United States.
The US National Weather Service (NWS) has advised the public not to rely solely on the appearance of clouds during severe weather. Instead, residents should follow official weather alerts and seek shelter only when a tornado warning is issued or when clear signs of rapid rotation are observed.
