GWR▸ have this about Reading -Gatwick:
Due to a tree blocking the railway between Wokingham and Guildford the line is blocked. Disruption is expected until the end of the day.
Train services between Reading and Gatwick Airport via Guildford and Redhill have been suspended.
Looking at Traksy, I reckon that's a significant underestimate of the number of trees (and the odd gazebo or trampoline) involved. I've never seen so many lines blocked at once.
SWR» have this to say about their services, life in general, and how sometimes it just isn't fair:
Due to high winds leading to multiple trees and other obstructions blocking the railway across the network, please do not attempt to travel until further notice.
There are at least seven trees down and a roof on our tracks, so we have had to suspend services south and west of Woking, south of Guildford and west of Staines.
Teams are working hard to clear the lines as soon as possible, but we are expecting extensive disruption throughout the evening.
If you are currently travelling with us, you can arrange your own taxis to complete your journey and claim this back from our Customer Services Team. To claim a refund, you will need:
Full contact details.
The time and date of your journey.
The stations you travelled to and from.
A description of the series of events that took place.
Copies of your train tickets and taxi receipt.