Tropical Storm Barbara was strengthening off Mexico’s Pacific coast and could become a hurricane Monday. MEXICO CITY (AP) — Tropical Storm Barbara was strengthening off Mexico's Pacific coast and could become a hurricane Monday, forecasters said.

The U.S. National Hurricane Center says two tropical storms have gathered strength off Mexico’s Pacific coast Monday, with one forecast to become a hurricane later in the day

The National Hurricane Center said swells generated by Hurricane Barbara will affect portions of the coast of southwestern Mexico over the next few days.