supply-and-demand diagrams

Explain each of the following statements using supply- and-demand diagrams.
When a cold snap hits Florida, the price of orange juice rises in supermarkets throughout the country.
When the weather turns warm in New England every summer, the prices of hotel rooms in Caribbean resorts plummet.
When a war breaks out in the Middle East, the price of gasoline rises, while the price of a used Cadillac falls.