Hurricane Boris was, in general, a well-forecast storm. Due to the short time when the system was at or above tropical storm intensity, long-range forecasts were not verified. The average errors were at one and a half days in the future. As Hurricane Boris was approaching Mexico, a tropical storm watch was issued for the coast between Manzanillo and Puerto Escondido on June 28. From Manzanillo to Puerto Maldonado, the tropical storm warning changed to a hurricane warning the same day.