The overnight rainfall was localized right over the city of Zurich, which experienced up to 40 litres per square meter. Curiously, only 20 kilometres away in Wädenswil, rainfall of only 2 litres per square metre was recorded.
“I've been working here for ten years. I’ve never seen so much rain in such a narrow band,” Roger Perret of MeteoNews told online news site 20 Minuten.
The extent of the rainfall was been predicted by the weather stations. The emergency services are still busy and many transport services have been restricted due to flooding.
Trams 7 and 9 are stopping short in Milchbuck, and there is no service to Schwamendingen due to flooding.
Daniela Tobler, spokeswoman for the transport company VBZ, has said that some tracks are still under water and that they will need to be cleared before normal service is resumed, online new site Tages Anzeiger reported.
The fire department has been particularly busy, with some 60 operations being conducted simultaneously.
“Most call-outs involve flooded buildings. We are currently working on a long waiting list,” spokesman Urs Eberle told Tages Anzeiger.
Some roads at Dietlikon, Wallisellen and Dübendorf have also been closed after rivers burst their banks.
It is likely to take some time before all transport links return to normal.