Hong Kong Observatory issues red rainstorm warning

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The Hong Kong Observatory issued a red rainstorm warning on Monday evening and forecast heavy rain for the next 24 hours.
The forecaster first issued an amber warning – the lowest level in a three-tier system – at 7.20pm before upgrading it to red 30 minutes later.
Earlier, at 5pm, it warned that rainfall could reach around 100mm (four inches) in 24 hours as...