The National Hurricane Center (NHC) reported that the low-pressure trough moving west near the Greater Antilles is already causing rain over Hispaniola.
"Unorganized rains and thunderstorms continue in association with a low-pressure trough extending from near Hispaniola northeast over the southwestern Atlantic," the NHC indicated in its latest bulletin.
However, it was reported that the chances of the phenomenon developing have decreased to 10 percent, both within a 48-hour period and over the course of a week.
The meteorological entity added that "regardless of development, locally heavy rains are possible in the Virgin Islands, Puerto Rico, Hispaniola, the Turks and Caicos Islands, and the southeast Bahamas until Sunday."
The NHC has not yet included Cuba in the list of affected areas.
"The development, if any, of this system should occur slowly over the next few days as it moves west to west-northwest near the Greater Antilles, the Turks and Caicos Islands, and the southeastern Bahamas," concluded the NHC.
A trough is an elongated region of relatively low atmospheric pressure that extends from an area of low pressure toward areas of higher pressure. They are associated with atmospheric instability, which often leads to the upward movement of air, cloud formation, and, in many cases, precipitation and storms.
In general terms, troughs are important in meteorology because they indicate areas where changes in the weather are more likely to occur, including rainfall and temperature variations. They can happen in any region, both in tropical climates and in mid-latitude areas.
The current hurricane season will conclude on November 30. For Cuba, it has been particularly challenging, as the country has been impacted by two hurricanes: first Oscar in Guantánamo, and a few days later, Rafael in the western part of the island.
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