(CNN) -- Tropical Storm Dora is expected to be a hurricane within hours as it moves up the Mexican Coast, the National Hurricane Center said Tuesday.
By 8 a.m. Thursday, Dora's winds are forecast to reach 125 miles per hour, making it a major hurricane, according to the hurricane center.
Life-threatening swells and dangerous rip currents will affect the coast of southern mainland Mexico by Monday evening, forecasters say.
There are no watches or warning in effect, but The National Meteorological Service of Mexico released a statement warning residents to protect themselves and their ships against the heavy waves and deteriorating conditions expected along the coast line of Oaxaca and Guerrero,
Dora currently has sustained maximum winds of 75 mph (120 kph) Tuesday afternoon, with higher gusts.
The storm is expected to weaken its intensity by Sunday, said the hurricane center.