The system, sparked during the eastern Pacific hurricane season, is forming near Mexico and could approach Cabo San Lucas this weekend. The Atlantic may be next.

Tropical Storm Alvin was located about 670 miles (1,080 kilometers) south-southeast of the southern tip of the Baja California peninsula of Mexico, the Miami-based National Hurricane Center said.

Tropical Storm Alvin is expected to form in the Pacific Ocean on Wednesday. Here's a look at the storm's projected path and spaghetti models.