Meteorologists from the US National Hurricane Center (NHC). They monitor a low-pressure system located some 1,600 kilometers east of the Windward Islands, the easternmost of the Lesser Antilles, with an 80% chance of becoming the next tropical storm in 48 hours.
With the hurricane Hanna turned into a tropical depression that discharges strong rains in South Texas and Northeast Mexico and the tropical storm Gonzalo already dissipated in the Caribbean, the attention in the Atlantic basin is on the system that this week could become known by the name in Spanish Isaiah.
According to the NHC, although last night the system was slightly disorganized, « environmental conditions » are expected to become more favorable for the formation in a day or two of the depression or tropical storm Isaiah.
The low pressure zone will advance west to west-northwest at a speed of 15 to 20 miles per hour (24 to 32 km / h) and may begin to affect parts of the Lesser Antilles on Wednesday, according to forecasts by the Miami-based body.
The Windward Islands, including Dominica, Saint Lucia, Saint Vincent and the Grenadillas, Granada and Barbados are the first populated territories that the system will encounter on its way.
The probability of a named storm forming within 48 hours is 80% but within five days it rises to 90%.
Of the six months of season of hurricanes in the Atlantic, the period from August to October is generally the period in which the most cyclones occur.
Tropical storms Arthur and Bertha have already formed this year, both before the official start of the season cyclonic, which begins on June 1 and ends on November 30.
Afterwards, Christopher, Dolly, Edouard, Fay, Gonzalo and HannaThe latter is the first hurricane this year in the Atlantic, which made landfall in Texas on Saturday, July 25.
According to weather forecasts, in the current season Cyclonic will form 13 to 19 named storms (with winds of 65 kilometers per hour), of which six to ten could become hurricanes (with winds of 119 kilometers per hour).
From those hurricanes, three to six could be higher, that is, with maximum sustained winds of 178 km / h or more, according to the National Oceanic and Atmospheric Administration (NOAA).