Tropical Storm Blas is intensifying off the coast of southwestern Mexico and is expected to become a hurricane on Wednesday, according to the National Hurricane Center in Miami, Florida, with further strengthening possible on Thursday.
Around 11 a.m. Hawaii time, the NHC reported the center of Tropical Storm Blas about 325 miles south, southeast of Manzanillo, Mexico.
Blas is moving north at a speed of nearly 5 mph and is expected to turn northwest overnight and west-northwest by the end of Wednesday.
Maximum sustained winds have increased to nearly 50 mph, with stronger gusts, and tropical storm-force winds extending up to 70 miles from the center.
Tropical Storm Blas is the second named storm to form in the Eastern Pacific this season, following Hurricane Agatha, which made landfall May 30 about 5 miles west of Puerto Angel, the Associated Press reported. , with maximum sustained winds of 105 mph.
There are currently no coastal watches or warnings in effect for Tropical Storm Blas.
Swells generated by Blas are expected to reach the southwest coast of Mexico late in the day, bringing life-threatening surf and rip conditions.
No significant swell, meanwhile, is expected in Hawaii.
The National Weather Service expects waves for east- and west-facing shores to remain at 3 to 5 feet today through Wednesday, and for north-facing shores to rise from 3 to 5 feet today to 2 to 4 feet Wednesday.
Surf for the south facing shores is expected to remain between 2 and 4 feet today through Wednesday.
Forecasters expect windy exchanges to cause increased showers on the windward and mauka slopes of Hawaii this evening into the weekend.