Example case
Jakaarta flood, 1 January 2020
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Antara
Floods inundate Kampung Pulo aand Bukit Duri in Jakarta on Thursdaay 1 January 2020. Source: https://www.antaranews.com/berita/1236087/berkacalah-jakarta
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Twitter
Indonesian President Joko Widodo tweeted about the emergency response, promising to restore public infrastructure with anti-flooding measures. Source: https://twitter.com/jokowi/status/1212554859372670976
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ERM forecast
Areas experience rainfall exceeding the threshold, release 5 to 1 day before the predicted event.
Alert for Extreme rainfall triggering flood, release 5 to 1 day before the predicted event.