The rain got heavier throughout the first two sessions, with everyone running intermediate tires and then extremes, before the red flag came out.
After a 90 minute break the weather showed signs of improving and the race director restarted the session.
At the end of the session a magic performance from Alonso saw the Spaniard quickest in 1.51.746.
The next fastest of the day was Red Bull Racing’s Mark Webber with a time of time of 1:51.793, followed by Mercedes-AMG’s seven-time world champion Michael Schumacher with a best time of 1:52.020. Reigning world champion Sebastian Vettel of Red Bull Racing was fourth fastest of the day.
Felipe Massa, Kimi Raikkonen, Pastor Maldonado, Lewis Hamilton, Nico Hulkenberg and Romain Grosjean completed the top 10.
While the prediction for tomorrow’s race is rain, with so many champions near the front of the grid and all of them vying for yet another title, it should be a very interesting race, weather permitting. Thankfully, Pirelli’s Cinturato Green intermediate and Cinturato Blue wet tires will be on standby.
Going into the race, Fernando Alonso leads the pack with a healthy 111 points to Red Bull Racing’s Mark Webber and his 91 points in the Drivers’ standings. McLaren’s Lewis Hamilton sits on 88 points, with Sebastian Vettel sitting on 85 points.
Red Bull holds the lead in the Constructors’ Championship with 176 to McLaren's 137, with Lotus at 126, Ferrari at 122 and Mercedes-AMG holding 92 points rounding out the top five.
We hope you enjoy the race and stay tuned for our British Grand Prix weather forecast early tomorrow morning.