31 Sat. (Continued.) Rather warm, fine sunny day, grand. Air raid warning from 8.30 to 9.5 a.m. From 10.45 to 11.25 a.m.. Enemy plane overhead, heard machine gun, this at 1. p.m. the warning coming at 1.7. and lasting till 2 p.m. Further warning from 5.50 to 7.20.p.m. Many enemy squadrons and some air battles: heard distant bombs. The bomb I heard at 9.p.m. last night hit the Cheam & Sutton Hospital. Polished the floors, bought liver for Dinkey: & a short walk in evening. Noticed concentration of searchlights over London soon after 9 p.m., the warning being given at 9-15 and lasting till 10-15. Another warning at 11-25 p.m. till midnight. A few bombs dropped in a westerly direction.
On this day: Biggin Hill, Manston, West Malling, Lympne and Hawkinge airfields virtually unoperational following attacks. Biggin, Debden and Hornchurch airfields attacked today. A low-point for the RAF - Britain's fighter-defence south of the Thames is almost non-existent.