I am in London this week, to visit my old colleague Stefan Haefliger. It is good seeing him (and his sweet little daughter Emmett). I like to walk around a lot in cities that I do not know well, so I walked from office at Cass Business School back to my hotel.

And then it rained! The Dailymail titled it “Commuter chaos across southern England as four major London stations are closed due to flooding when torrential thunderstorms dump a MONTH’S rain on the capital in hours” (and has impressive pictures of flooded stations)

The nicest weather data I could find was from nw3weather.co.uk (thanks, Mr. Lee-Rodgers) which recorded a rain rate of 60 mm/h (16:31) and a daily amount of rain of 24.2 mm just on Sep 24th. There is an average monthly rainfall of 34.6 mm, so it was not quite a month’s of rain in a day, but close enough for me to get soaked.

All photos except the weather chart are (c) by me and under the Creative Commons Attribution-ShareAlike 4.0 International License.