The third eastern Pacific tropical system of the year has formed, threatening southern Mexico with gusty winds and flooding rainfall into the middle of the week.
“Late Sunday afternoon, an area of tropical low pressure south of the Gulf of Tehuantepec became better organized into Tropical Depression 3-E,” said AccuWeather Senior Meteorologist Frank Strait.
Warm ocean waters and favorable atmospheric conditions allowed the system to continue to strengthen, becoming Tropical Storm Calvin on Monday afternoon.
“Regardless of the strength of this system, heavy rain will impact coastal regions of southern Mexico through the middle of the week,” said AccuWeather Senior Meteorologist Matt Rinde.
Calvin will slowly track away from Tapachula to the northwest, inching along the southern coast of Mexico, where it is expected to make landfall over southwestern Oaxaca.
“There will be winds gusting to around 50 mph Monday night as landfall occurs, along with a coastal storm surge of a foot or two,” said Strait.
Once over the mountainous terrain of the Sierra Madre del Sur, the system will quickly weaken and dissipate.
Rainfall measuring 3.95 inches (100.3 mm) fell in Tapachula, Mexico, Thursday through Sunday as a result of the unsettled tropical weather.
“The primary concern with this feature is going to be the potential for excessive rainfall over the southern part of the Mexican state of Oaxaca, as well as southeastern Guerrero and southwestern Chiapas,” said Strait.
“This will result in flooding in some areas through Wednesday with the potential for mudslides in the area mountains.”
Salina Cruz, a major Pacific seaport for the state of Oaxaca, and Acapulco, a popular resort town, can expect to be impacted by this disruptive weather over the coming days.
High winds over the eastern Pacific will make for dangerous wave activity, threatening beach-goers and sea-faring vessels through midweek.
Source: Accu Weather