How does the author use foreshadowing in One L: The Turbulent True Story of a First Year at Harvard Law School?

Turow uses both symbolism and foreshadowing when describing the bleak arrival of November at Harvard Law School. Turow writes, "That gray cap which hovers over Cambridge at least six months a year had begun to appear. The squirrels were burrowing, storing nuts. Winter, cold and slushy and despised—the first this temporary Californian had been through in five years—was nearing," (October and November:

The gray cap is symbolic of the overcast skies, much of the time heavy with snow, which hangs over the Boston area for much of the fall and winter months. This explanation of the gray scenario also foreshadows the upcoming bleak mood of Scott and his classmates as they trudge through endless hours of study and also confront personal crises such as "the Incident" stemming from Perini's inappropriate and abusive behavior toward students.