Another tropical storm spinning in the Eastern Pacific will threaten catastrophic flooding in areas recently affected by Hurricane Norbert.

On Wednesday morning an area of disturbed weather southwest of Acapulco, Mexico strengthened into a depression, then into Tropical Storm Odile. Odile is expected to strengthen overnight as it moves northwest toward the port of Lazaro Cardenas, according to the US National Hurricane Center.

Odile is currently moving at three miles per hour with maximum sustained winds of 40 miles per hour. It is expected to continue slowly shifting northward through the end of the week, then pick up more speed as it strengthens. The system will likely become a hurricane by the start of the weekend.

Odile is the 15th named storm of the eastern Pacific season.

Unlike the path of Hurricane Norbert, Odile is more likely to hug closely to the Mexican coastline. From Manzanillo to Puerto Vallarta, coastal cities and the mountains near the coast could be at risk of flooding rains and mudslides. Large swells that could cause life-threatening surf and rip currents are also expected.

With the increased strength of the storm, wind speeds will also increase, threatening widespread power outages along the coastline, the worst of which will be to the north of Acapulco. However, some heavy showers and storms could still move over the famous beach resort through Saturday as tropical moisture gets pulled into that area.

Into the weekend, Odile will continue to race northwest and is forecast to grow into at least a Category 2 hurricane as it heads for the southern tip of Baja California. The storm will be zoning in on areas that endured flooding rainfall from Hurricane Norbert just a week ago, and as much as 6 inches of rain could fall in these areas in only a few hours.

After the extensive flooding across the Baja from Norbert, it will not take much more to cause additional flooding issues. Some of the moisture from this system will likely be swept up into northern Mexico, including the cities of Hermosillo and Chihuahua into next week.

In addition to Odile, forecasters are watching a second system that may become a tropical depression overnight.