(CNN) -- Hurricane Bud strengthened to become a Category 2 storm Thursday as it churned toward the southwestern coast of Mexico, the National Hurricane Center said.
Bud has maximum sustained winds near 110 mph and is moving north-northeast near 9 mph, the center said in a 2 p.m. ET advisory.
Some additional strengthening is possible Thursday afternoon. Weakening "should begin tonight or early Friday and continue through Saturday," the advisory said.
"The center of Bud will be near ... the southwestern coast of Mexico late Friday and Saturday," the center said.
The official forecast track does not show the hurricane making landfall in Mexico.
Bud is the second named tropical storm of the East Pacific hurricane season.
On Thursday, Bud's outer bands were already over coastal areas of Jalisco, Colima, Michoacan and Guerrero, weather officials in Mexico said.
There was an advisory in place for mariners.
The National Hurricane Center warned that Bud is expected to bring 4 to 6 inches of rain along Mexico's southwestern coast, with possible isolated amounts of 10 inches.
"These rainfall amounts could produce life-threatening flash floods and mudslides."
Swells generated by Bud will begin affecting some coastal areas Thursday, and "are likely to cause life-threatening surf and rip current conditions," the hurricane center said.