Intensification Cause_change_of_position_on_a_scale stalled as it moved Motion westwards across the Gulf of Mexico , but resumed as the hurricane approached Arriving the Texas coast .

Intensification Cause_change_of_position_on_a_scale continued , and later on July 21 , Anna became Becoming a major hurricane Catastrophe , upon reaching Arriving Category 3 intensity .

Intensification slowed Change_event_time somewhat , though Dora became Becoming a Category 3 on September 5 .