The fourth storm of the season formed around 11am today about 1,000 miles west of the Azores, but it poses little threat to anything but fish.
There are now no coastal watches or warnings in effect.
John was centered about 335 miles (540 kilometers) southwest of the Mexican port of Manzanillo early Monday, with maximum sustained winds of 60 mph (95 kph).
The NHC issued a tropical storm warning Wednesday for Hawaii County, and the Hawaii Emergency Management Agency advised residents to prepare an emergency kit that includes at least a 14-day supply of food, water and other necessities.
Hurricane Hector, a major storm in the Central Pacific, has weakened slightly as it continues churning closer to the islands.
So far this season we have had Subtropical Storm Alberto, which formed in May, as well as Hurricane Beryl and Hurricane Chris.
The forecast, released last week, said the tropical Atlantic was anomalously cool and strong wind shear has been recorded over the Caribbean in the last month.
- Hurricane John advanced northwestward along Mexico's western coast on Wednesday and it was expected to stir up heavy surf and drop rain on the southern Baja California Peninsula while keeping away from landfall.
The storm was moving west at roughly 15 miles per hour.
Farther out in the Pacific was recently formed Tropical Storm Kristy, which had sustained winds of 50 miles per hour (85 kph) and could become a hurricane.
High Surf Warning up to 15 feet for east and southeast facing shores until 6 p.m. Wednesday. Tropical Storm Ileana also is growing while racing John up the coastline and is forecast to reach hurricane strength later Monday.