The latest storm information from the US National Hurricane Center (NHC) said that at 11:00 a.m. on August 4 (local time), the tropical depression in the East Pacific Ocean has strengthened into a tropical storm, with the center of the storm about 1,440km southwest of the southern tip of Baja, California, USA, about 3,700km east-southeast of Hilo, Hawaii, USA.
Maximum sustained winds in Hurricane Henriette are 72 km/h and the storm is moving west-northwest at a speed of about 24 km/h. Tropical storm-force winds have an area of influence of up to 72km from the center of the storm.
Forecasters said there was no threat to land and no tracking or warning would be in place as Henriette formed. However, forecasters note that Henriette is expected to strengthen in the next few days.
Forecasters at the US National Hurricane Center based in Miami said that the latest storm in the Pacific Ocean will continue to move west-northwest in the following days.
On August 9, Hurricane Henriette is forecast to gradually turn northwest "due to the influence of the mid-latitude, mid-latitude trough that is moving from the North and Central Pacific towards the Hawaiian Islands," the bulletin stated.
As it moves northeast of Hawaii on August 9, Typhoon Henriette is expected to have maximum sustained winds of 72 km/h.
Hurricane Henriette is the eighth storm of the Northeast Pacific hurricane season this year. The current hurricane season in the Pacific is very active.
Before Hurricane Henriette, Hurricane Gil reached typhoon level in the East Pacific on August 2 and then gradually weakened from August 3.
Forecasters said the circulation of Hurricane Gil is expected to continue drifting westward, passing just north of the Hawaiian Islands on August 6 and 7.
Forecasters in Honolulu said the weather will be hot and humid, with light rainfall, due to the influence of Hurricane Gil's circulation.
At the same time as Henriette formed in the Pacific, Dexter also formed in the Atlantic, about 440km north-northwest of Bermuda.
The strongest winds of the fourth storm of this year's Atlantic hurricane season are 75 km/h. Typhoon Dexter is forecast to continue moving northeast at a speed of 24 km/h. The tropical storm is expected to weaken between mid- and late-week.
There are no weather warnings for Dexter and forecasters say there is no danger of the storm making landfall.