References 292% CONFIDENCEOverall confidence: 92%How well the pin's source and references back up its dates.Weighted average of how firmly 2 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]90%en.wikipedia.org/wiki/Storm_Danielen.wikipedia.org· Posted Sep 21, 2026· Starts Sep 11, 2023 ✓· 50% of score
The source dates the dam failure to the early hours of 11 September: "Residents recalled hearing loud explosions at the time the dams burst, with video showing the flood reaching Derna shortly before 03:00 EET on 11 September", after the storm made landfall near Benghazi on 10 September.
- [2]93%Storm Daniel leads to extreme rain and floods in Mediterranean, heavy loss of life in Libyawmo.int· Added Sep 21, 2026· 50% of score
WMO's own statement on the event supplies the rainfall that broke the dams - "Torrential rains of between 150 - 240 mm caused flash floods in several cities, including Al-Bayda, which recorded the highest daily rainfall rate of 414.1 mm (from 10 Sep 8am to 11 Sep 8am)" - and confirms the Derna dam failure.
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