"Thunder and lightning" (Act I, Line 1). The quote" thunder and lightning" represents the disruptions in nature. Most people usually don't dream of day being shown with thunder and lightning, and especially with the witches. In Line 2, the first witch talks about the meeting with Macbeth, "In thunder, lightning, or in rain?" The meet is shown with these disruptions. The witches are also surrounded by more negative
kinds of forecast: "Hover through the fog and filthy air" (Line 11). The weather can associate the witches, meaning that the witches themselves are the foreign ones, though not restricted to nature. The bad weather may also mean that the witches are evil or foul creatures.
Act II, is on a dark night. Fleance, says, "The moon is down" (Line 2), and Banquo says, "Their Heaven's candles are all out there are no stars in the sky" (Line 5.) Darkness shows feelings of evilness, of the disturbances in nature on this fated night. It creates a perfect scene for the intent murders.
Another disruption from nature comes from Macbeth's mouth, "Now o'er the one half-world Nature seems dead" (Lines 49-50). This statement may say that everywhere he looks, the world seems dead and that there is no light ahead. It may also give him the "light bulb idea" that the murder he commits will have unwelcome effects far throughout.