Winter Thunderstorms

Abstract

THOSE of your readers who may observe thunderstorms in the British Isles during the winter months would give great assistance to an investigation of thunderstorms on which I am engaged if they would report by postcard when they observe lightning or thunder during this winter. When sheet lightning is observed at night the time and direction should be given, and a note as to whether many flashes were seen or whether there were only two or three. When thunder is heard the time should be given, and the direction of the storm; it should also be stated whether lightning was seen and whether rain occurred. Much useful information might be gained from winter storms, but as thunderstorms may be very local they may sometimes be missed by the official observers; I should therefore gladly welcome help from anyone who is good enough to send me information. It is obvious that only winter storms can be dealt with in this way; I would therefore ask those who are willing to help to send information up to March 31st only.