The storm formed well southwest of Mexico and strengthened to hurricane status on June 7 at 5 p.m. EDT as it moved toward Mexico. Aletta strengthened rapidly, reaching peak strength on June 8. Maximum sustained winds reached 140 mph (225 km/h) on that date bringing Hurricane Aletta to Category 4 strength on the Saffir-Simpson Hurricane Wind Scale. By June 9th the hurricane was facing increasingly adverse conditions and began to weaken rapidly.
<p>The National Hurricane Center (NHC) issued its final report on Aletta on the afternoon of June 11. They reported that the system had degenerated into a remnant low pressure system due to lack of convection. Described as “mainly a large swirl of cold-air stratocumulus clouds”, Aletta is expected to continue to weaken with a gradual spin down of the wind field over open water. The storm remained well off shore throughout its life.
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The Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Terra satellite acquired this true-color image of Tropical Storm Aletta as it was weakening over the Pacific Ocean well southwest of Baja California on June 10.
NASA's Terra satellite
2018-06-12
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