Hashtag Salvideo
In Rio Grande do Sul, hope arrives by boat | #312
May 12, 2024 · 1h 13m · 627K views · Rio Grande do Sul
What this video covers
Floods in Rio Grande do Sul in May 2024 surpassed the state's previous worst disaster — the 1941 Porto Alegre flood that peaked at 4.76 meters on the Guaíba — when water reached 5.30 meters on May 4, 2024, affecting a region of roughly 4.5 million people.4:08 Adriano Plotzky, who is from Rio Grande do Sul, documents the catastrophe: 428 of the state's 497 cities were affected, some entirely submerged, including Eldorado do Sul.0:49 Meteorologist Giovanni Dolif, PhD, explains the mechanism — a stationary boundary between cold southern and warm northern high-pressure air masses forced sustained uplift over the state, producing rainfall far exceeding the forecast of 200–250 mm over three days; some areas received that in a single day, repeated across consecutive days.47:45 Dolif links the severity directly to abnormally warm tropical Atlantic sea-surface temperatures amplifying an El Niño event, noting that the stronger 2015–2016 El Niño caused no comparable disaster.28:11 Porto Alegre lost water supply to 85% of its population.33:05 The volunteer group Velejadores Solidários, led by Danilo of Sunáutica and Anderson of Articlube Guaíba, used sailboats and other vessels to deliver fuel and supplies to cut-off cities.10:14 Jet ski operators rescued people from the highest-current zones.40:08 The disaster exposed the limits of current meteorological models in quantifying rainfall extremes.48:41
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