Which media would be least effective for informing the public about an approaching tornado?

A newspaper article would be the least effective medium for informing the public about an approaching tornado due to the inherent nature of print media. By the time a newspaper is printed and distributed, the information may be outdated, especially concerning rapidly evolving situations such as severe weather events. Tornadoes can develop quickly, often with little warning, and individuals need timely alerts to ensure their safety.

In contrast, other media options provide real-time updates and immediate alerts. Television news alerts can broadcast live or breaking news updates, making them highly effective in disseminating urgent information. Social media posts can reach a wide audience almost instantaneously, allowing for quick sharing of critical updates. Emergency radio announcements are designed for timely broadcast and can reach areas even if the power is out, which is crucial during severe weather. Thus, the immediacy and real-time nature of the other media make them much more effective than a newspaper article in communicating urgent weather threats.