The Civil Defense of São Paulo has released a video demonstrating how a meteorologist, referred to simply as William, sent out a severe weather alert for anticipated heavy rains on the state’s coastline. This alert is automatically dispatched to cellular devices on 4G and 5G networks in the affected area, ensuring that residents are informed regardless of whether they have signed up for warnings. The alert indicates a significant threat of flooding and landslides in risk areas, underlining the importance of remaining in safe locations during such severe weather conditions.

In the video, which was recorded in the late afternoon of Thursday (26), William is shown operating a notebook as he disseminates the critical alert from the Emergency Management Center. Other staff members are seen analyzing radar images that confirm the onset of heavy rainfall impacting the coastline. This proactive approach by the Civil Defense emphasizes the urgency and severity of the weather situation, a responsibility heightened by the potential risks posed to public safety.

The technology used for conveying this alert, known as cell broadcast, allows the sound alarm to activate even if a mobile device is set to silent mode. As a consequence, users will receive immediate notification of urgent weather updates, and it even prompts a response by allowing individuals to acknowledge the alert by pressing 'OK'. This system of rapid communication is essential for improving preparedness and minimizing risks associated with extreme weather events in coastal areas.