“A tropical wave over the west-central Caribbean Sea could become a tropical depression during the weekend while moving slowly west-northwestward over the northwestern Caribbean Sea,” the NHC 发推文.
Forecasters said the system will move westward over the next couple of days and interact with a frontal system, producing a “broad area of low pressure over the western Caribbean Sea by Thursday night or Friday.”
“Environmental conditions are forecast to be conducive for some development thereafter, and a tropical depression could form over the weekend while the system moves slowly west-northwestward over the northwestern Caribbean Sea,” NHC说.
While the NHC only gives a 10% formation chance over the next 48 小时, that increases to a 60% chance of development by the weekend.
If the system does develop into a tropical storm, it would have the name Gamma and be the 24th named storm of the 2020 Atlantic season.
Colorado State University hurricane research scientist Phil Klotzbach said that CSU is calling for above-normal Atlantic hurricane activity in the forecast for the next two weeks.
“Large-scale atmospheric conditions generally favor tropical cyclone activity over the Atlantic basin, with reduced wind shear anticipated,” 他 发推文 星期三.
这远远高于平均水平. 基于1981年至2010年的数据, 那是 12 命名风暴, 六级飓风, 和三大飓风.
上次在大西洋使用希腊字母是在 2005, 卡特里娜飓风年. 总共 27 那年暴风雨, 使用希腊字母的前六个字母: Α, 贝塔, 伽玛, 三角洲, Epsilon和Zeta.
Hurricane season runs through Nov. 30.
福克斯新闻’ 珍妮丝·迪恩, Adam Klotz, and Brandon Noriega contributed to this report.