On June 17, Tropical Depression Four-E started from an area of low pressure. Tropical Depression Four-E strengthened fast, and had become Tropical Storm Blas just one hour later. Blas became a strong tropical storm and had its highest winds at 65 mph (100 km/h) on June 19. It began to weakened slowly as it headed into colder waters. The next day, Blas weakened to a tropical depression and died the following day, June 21. Tropical Storm Blas remained far enough from land to cause no affects. 