An area of low pressure is expected to form several hundred miles south-southwest of the Baja California peninsula by the middle of the week.  Environmental conditions are expected to be conducive for gradual development after that time while it moves slowly northward.
Formation chance through 48 hours: low / 10 percent.
Formation chance through 5 days: medium / 60 percent.

2. The remnants of Katia, located about 500 miles west-southwest of Manzanillo, Mexico, are associated with a well-defined low pressure center. Showers and thunderstorms with this system have become better organized during the last day or so.

Despite upper-level winds appearing to be hostile for development over the next few days, any additional improvement in the convective organization could lead to the formation of a tropical cyclone while the system moves westward at 10 to 15 mph.
Formation chance through 48 hours: medium / 50 percent.
Formation chance through 5 days: medium / 50 percent.

3. A trough of low pressure located a few hundred miles south of the southern coast of Mexico is producing disorganized showers and thunderstorms. Environmental conditions are expected to be conducive for development, and a tropical depression is likely to form later this week while the system moves slowly northwestward.
Formation chance through 48 hours: medium / 40 percent.
Formation chance through 5 days: high / 70 percent.