Early warning systems that are unable to properly predict, analyze, detect or communicate warnings to decision-makers and the general public put the lives, jobs, infrastructure, livelihoods and resources of a region at risk. People can only prepare and respond to what they know about, so even if all other preparedness measures are successful, a disfunctional early warning system can increase the likelihood of disaster.
In summer 2021, air temperatures in Canada broke records multiple days in a row as a powerful heatwave spread over the Pacific Northwest, registering over 600 heat-related deaths and setting an all-time high-temperature record for the country at 49.6°C (121.3°F).
On 1 September 2021, remnants of Hurricane Ida, the costliest disaster of 2021, brought historic rainfall to New York City, triggering the city’s first-ever flash flood alerts as water flooded streets, subway stations and apartments.
Lagos faces increasingly severe annual flooding, exacerbated by sea level rise and subsidence. In 2021, floods again submerged vehicles and houses, displacing thousands from their homes.
On 15 January 2022, the Hunga-Tonga-Hunga-Ha'apai volcano eruption was felt across the Pacific Ocean and beyond, releasing energy equivalent to hundreds of Hiroshima nuclear explosions and creating supersonic air pressure waves that were observed from space.
From October to November 2020, 9 storms in 7 weeks caused widespread flooding in central Viet Nam. As a result, a total of 7.7 million people were affected by the disruption to basic services and 291 people lost their lives.