CABO SAN LUCAS, Mexico—Norma strengthened slightly and dumped heavy rain after being downgraded to a tropical storm Sunday as it moved into mainland Mexico, while Hurricane Tammy left the Caribbean island of Barbuda with minor damage.
Once a Category 4 hurricane, Norma came ashore Saturday as a Category 1 near the Pacific resort of Los Cabos at the southern tip of Mexico’s Baja California Peninsula. Tens of thousands were left without power.
