Eastern Pacific hurricane season began on May 15 and after three weeks of relative quiet, it appears to be waking up. Hurricane Aletta, centered just over 500 miles south of Mexico's Baja Peninsula, remains a strong major hurricane, the first of the 2018 Eastern Pacific hurricane season.
In just 24 hours, Aletta went from a tropical storm to a Category 4 hurricane, doubling its maximum sustained winds (70 mph to 140 mph) by the 9 a.m.The combination of increased wind shear and quickly decreasing ocean heat content will cause Aletta to quickly weaken this weekend as it moves into the open Pacific.
The meteorological marvel is thankfully not forecast to make landfall (though rip currents and swells are possible along Mexico’s west coast this weekend). Hurricane Aletta's rapid intensification was accompanied by numerous lightning strikes. To the east of Aletta, another area of low pressure, a tropical wave, is given high odds by the NHC to develop into a tropical depression or tropical storm this weekend south of the Mexican Riviera. High surf will be generated, propagating first to the southern Mexican coast, then pushing northward toward the Baja Peninsula, including Los Cabos. Breaking waves and rip currents will be a threat along those beaches into at next week.