A ridge to the north caused a general westward track toward the Philippines.

The system intensified gradually as it began to track quickly westward toward the Philippines.

With a strong ridge to the north, the depression tracked steadily westward.

It tracked westward, becoming a tropical storm later that day.

With a ridge of high pressure to its north, the depression tracked westward.

Over the next three days, the system tracked westward and slowly began to develop a closed circulation.

The system tracked westward and was observed by a research flight on August 18.

The depression tracked westward due to a ridge to its north.

The system began to track westward with an increasingly better-defined center.

The system tracked westward in response to an upper-tropospheric low over Georgia.