An explosion and fire occurred in a storage tank filled with 354 t of Methanol due to the fall of a lightning stroke during a summer thunder-storm. Firemen fought the fire and 91 t of quenching water loaded with the Methanol were collected to be treated in the clarification plant. The storage tank was destroyed causing minor damages to the plant, 8 t of methanol burned. The costs of the material damage were estimated at 1 M DM. No-one was hurt.